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Sun StorEdge™ 3310 SCSI RAID Firmware Guide™

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1. Creating Additional Host IDs All RAID arrays are preconfigured when they arrive from the factory Default host channel IDs are Channel 1 ID 0 primary controller Channel 3 ID 1 secondary controller Each host channel might have two editable ID numbers Primary controller ID Secondary controller ID Each ID number must be a unique number within the host channel You can m Edit each host ID number to change the SCSI target number of each controller host channel that is seen by the host m Add additional host ID numbers by adding a second host ID to channels 1 and 3 and additional host IDs if you make Channel 2 into a host channel Note To map 128 partitions into 128 LUNs you must add additional host IDs A minimum of four host IDs are required a maximum of six host IDs are possible For details on mapping 128 LUNs refer to Mapping Logical Drive Partitions to Host LUNs on page 5 3 To select a unique ID number for a host channel perform the following steps Select view and edit Scsi channels Press Return Highlight the host channel on which you want to edit the Primary Secondary ID and press Return Press Return to access the list of IDs and use the arrow keys to select an ID number 0 through 15 then press Return again 3 Select view and edit scsi Id and press Return Select Add Channel SCSI ID Chapter 7 Viewing and Editing SCSI Channels 9 7 4
2. FIGURE 9 5 Set Peripheral Device Entry Redundant Controller Mode Do Not Change The redundant controller mode is automatically set to Enabled Do not change this setting For more information about redundant controller operation refer to Controller Defaults and Limitations on page 1 13 Chapter 9 Viewing and Editing Peripheral Devices 9 5 9 3 1 9 3 2 Enable UPS Status This function is used to enable the Uninterruptible Power Supply UPS status if a UPS unit is installed for power redundancy and backup The default value for this function is Disabled 1 Select the UPS Status option and press Return gt Main Menu gt Quick installation view and edit Logical drives Define Peripheral Device Active Sign Adjust LCD Contrast Controller Peripheral Device Con FIGURE 9 6 UPS Status 2 A confirmation prompt will be displayed Select Yes and press Return to confirm 9 6 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Setting the UPS Power Fail Signal The UPS Power Fail Signal function is to prioritize the alert notification level if power to your UPS device should fail for any reason The default High priority should not be changed 1 On the Main Menu select view and edit Peripheral devices 2 Select the Define Peripheral Device Active Signal command gt Main Menu gt Quick installation view and edit Logical drives view
3. verc Slot number maximum sync xfer Clock Befault maximum xfer Width Enabled Def Befeute Parity chec Disconnect support Set Maximum Tag Count Restore to default setting 43 Yes No Enabled Def Quic 128 1 Select maximum Tag count then press Return A list of available tag count numbers is displayed 2 Select a number then press Return 3 Select Yes in the dialog box that follows to confirm the setting Caution Disabling the Maximum Tag Count will disable the internal cache of the SCSI drive 7 10 6 7 18 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Viewing and Editing Configuration Parameters This chapter describes viewing amp editing configuration parameters Topics covered Optimization Modes Caching Parameters on page 8 2 a Optimization for Random or Sequential I O on page 8 3 a Write Back Write Through Cache Enable Disable on page 8 4 Controller Failure Symptoms Logical Drive Rebuild and Replacement on page 8 5 General Controller Failure Response on page 8 5 Automatic Logical Drive Rebuild on page 8 6 Manual Rebuild on page 8 6 Concurrent Rebuild in RAID 0 1 on page 8 9 Identifying a Failed Drive for Replacement on page 8 9 Restoring Your Configuration NVRAM From a File on page 8 9 Determining Fatal Drive Failure on page
4. Source Drive NE Channel 1 68 Destination Drive NE Channel 1 3 NE gt gt gt lt A gt 2 66 zone onctine SCS 4 Select one of the member drives as the source drive status indicated as ON LINE by pressing Return A table of available SCSI drives will prompt Select a new drive to copy the capacity of the source drive The channel number and ID number of both the Source Drive and the Destination Drive will be indicated in the confirming box 2 ES EE E View scsi drives Delete logical drive Partition logical drive logical drive Name logical drive Assignments xpand logical drive Scsi drives a reGenerate parit c py and replace drive 668 lt A 3 26 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 5 Select Yes to confirm and proceed A notification message is displayed 21A1 LG 0 Logical Drive NOTICE CHL 1 ID 3 Starting Clone 6 Press ESC to view the progress Co 10 Uv RArO SieHB States 8 1 70 0901 veel COODI 1 8 0 Drive Copying 1 1 1 MAMMI 4 7 Completion of the Copy and Replace process will be indicated by a notification message A notification me
5. ebar Sir Drive Local Spare Drive of LD1 RAID 5 RAID 3 8GB 6GB Local Drive 0 Local Drive 1 FIGURE 3 1 Allocation of drives in Logical Configurations 3 6 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 1 View the connected drives Before configuring disk drives into a logical drive it is necessary to understand the status of physical drives in your enclosure a Use the arrow keys to scroll down to view and edit Scsi drives and press Return This displays information of all the physical drives that are installed Quic view view view 0 1 70007 160MB O ON LINE SEAGATE T373405LC view T T b Use the arrow keys to scroll through the table Check that all installed drives are listed here If a drive is installed but is not listed it might be defective or might not be installed correctly contact your RAID supplier When the power is on the controller scans all hard drives that are connected through the drive channels If a hard drive was connected after the controller completed initialization use the Scan scsi drive function accessed with the view and edit scsi Drives command on the Main Menu to let the controller recognize the newly added hard drive and configure it as a member of a logical drive Caution Scanning an existing drive removes its metadata references and its assignment to any logical drive All data on that drive will be lost Chapt
6. 3f23 Peripheral Device ALERT 3f23 Peripheral Device ALERT 3f23 Peripheral Device ALERT F C 3 22 Peripheral Device ALERT 3 22 Peripheral Device ALERT 3f22 Peripheral Device ALERT RPM 3f21 Peripheral Device ALERT 3f21 Peripheral Device ALERT 321 Peripheral Device ALERT Detected _ 324 Peripheral Device ALERT 324 Peripheral Device ALERT PC Device SES Devices 3f21 SES C_ 1 Power Supply _ lt Vendor descriptor strings Device Not Supported gt 3f21 SES C_ 1 Power Supply _ lt Vendor descriptor strings 1260160 Not Installed gt 3f21 SES C_ I_ Power Supply _ lt Vendor descriptor strings Device Unknown Status gt 3f21 SES C_ I_ Power Supply _ lt Vendor descriptor strings Device Not Available gt 3 22 SES C_ I_ Cooling element _ lt Vendor descriptor strings 1260106 Not Supported gt 3 22 SES C_ I_ Cooling element _ lt Vendor descriptor strings 1260106 Not installed gt 3 22 SES C_ I_ Cooling element _ lt Vendor descriptor strings Device Unknown Status gt 3 22 SES C_ I_ Cooling element _ lt Vendor descriptor strings 1260106 Not Available gt 3 23 SES C_ I_ Temperature Sensor _ lt Vendor descriptor strings 1260106 Not Supported gt 3 23 SES C_ I_ Temperature Sensor _ lt Vendor descriptor strings 1260106 Not installed gt 3 23 SES C_ I_ Temperature Sensor _ lt Vendor de
7. amp Sun microsystems Sun StorEdge 3310 SCSI RAID Firmware Guide Version 3 25 Sun Microsystems Inc 4150 Network Circle Santa Clara CA 95054 U S A 650 960 1300 Part No 816 7296 11 October 2002 Revision A Send comments about this document to docfeedback sun com Copyright 2002 Dot Hill Systems Corporation 6305 El Camino Real Carlsbad California 92009 USA All rights reserved Sun Microsystems Inc and Dot Hill Corporation may have intellectual property rights relating to technology embodied in this product or document In particular and without limitation these intellectual property rights may include one or more of the U S patents listed at http www sun com patents and one or more additional patents or pending patent applications in the U S and other countries This product or document is distributed under licenses restricting its use copying distribution and decompilation No part of this product or document may be reproduced in any form by any means without prior written authorization of Sun and its licensors if any Third party software is copyrighted and licensed from Sun suppliers Parts of the prodat may be derived from Berkeley BSD systems licensed from the University of California UNIX is a registered trademark in the U S and in other countries exclusively licensed through X Open Company Ltd Sun Sun Microsystems the Sun logo AnswerBook2 docs sun com and Solaris are trademarks o
8. Expand Logical Drive 66 gt gt gt gt gt 8 gt gt 5 Upon completion you will be prompted by the notification message 2188 Expansion of Logical Drive 0 Completed Chapter 3 Viewing and Editing Logical Drives 3 29 6 Press ESC to return to the previous menu screen The total capacity of logical drive has been expanded to 6 Gigabytes Ce To LV Rato Size Status O AN p FL e ADAI 7 R c _ gt gt 06 gt gt gt gt gt 860 3 30 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 CHAPTER 4 Viewing and Editing Logical Volumes The creation of logical volumes is a legacy function which is available but rarely used This chapter describes the limitations and procedures for creating and using logical volumes Caution This feature is not supported in the Configuration Service program It is available but rarely used It has been replaced by the use of partitions in logical drives Topics covered in this chapter include Understanding Logical Volumes Multi Level RAID on page 4 2 m Creating a Logical Volume on page 4 5 Expanding a Logical Volume on page 4 7 4 1 4 1 Understanding Logical Volumes Multi Level RAID Logical Volume CY Physical Drives FIGURE 4 1 Logical Volume composed of Multiple Drives A logical volume is a combination of RAID 0 Striping and other RAID l
9. 0 seconds 10 seconds Maximum Tag Count 32 15 seconds Periodic Drive Check Time 10 seconds 20 seconds Periodic SAF TE and SES Device Check Time 5 seco Periodic Auto Detect Failure Drive Swa Drive Predictable Failure Mode SMART Set Disk Access Delay Time Fibre Channel Dual Loop Enab Yes No Drive side Parameters Dis Array Parameters Redundant Controller Parameters Controller Parameters SS seconds 60 seconds 65 seconds 70 seconds 75 seconds Select view and edit Configuration parameters on the Main Menu Select Drive side SCSI Parameters then press Return The Drive side SCSI parameters menu is displayed Select Disk Access Delay Time then press Return A list of selections is displayed Select the desired delay time and press Return Select Yes to confirm the setting SCSI I O Timeout The SCSI I O Timeout is the time interval for the controller to wait for a drive to respond If the controller attempts to read data from or write data to a drive but the drive does not respond within the SCSI I O timeout value the drive will be considered a failed drive The default setting for SCSI I O Timeout is 7 seconds It is recommended not to change this setting Setting the timeout to a lower value will cause the controller to judge a drive as failed while a drive is still retrying or while a drive is unable to arbitrate the SCSI bus Setting the timeout to
10. Caution Do not change the PID and SID values of drive channels lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels v Chl Mode PID SID DefSynC1k DefWid Term CurSynC1k CurWid 80 OMHz 80 OMHz 80 MHz 80 MHz 80 OHHz mirer 80 OMHz Note A mapped host channel sometimes shows the current sync clock as Async Narrow and correctly identify the change in speed The host adapter driver is designed to downgrade the negotiation rate on certain errors predominantly parity errors There is little or no performance change Highlight a SCSI channel and press Return to view the additional commands available for that channel Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 7 1 7 2 TABLE 7 1 Parameters Displayed in the SCSI Channel Window Parameters Description Chl SCSI channel s ID Mode Channel mode RCCom Redundant controller communication channel Host The channel is functioning as a host channel Drive The channel is functioning as a drive channel PID Primary controller s SCSI ID mapping ij Multiple SCSI IDs were applied host channel mode only The SCSI ID for host LUNs mapped to this channel in Host Channel mode SCSI ID for the primary controller in drive channel mode N
11. Stat eat Address Stat Address Stat Chapter 6 Viewing and Editing SCSI Drives 6 23 6 24 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 CHAPTER 7 Viewing and Editing SCSI Channels This chapter describes how to view and edit SCSI channels Topics covered include SCSI Channel Status Table on page 7 2 Configuring SCSI Channels as Host or Drive on page 7 5 Permanent SCSI Drive Channel IDs on page 7 7 Creating Additional Host IDs on page 7 9 Deleting a Host Channel SCSI ID on page 7 10 Drive Channel SCSI IDs Do Not Change on page 7 11 Setting a SCSI Channel Termination Do Not Change on page 7 12 Setting a Transfer Clock Speed on page 7 13 Setting a Transfer Width on page 7 14 Viewing and Editing SCSI Target Drive Channel on page 7 15 Slot Number on page 7 16 Maximum Synchronous Transfer Clock on page 7 16 Maximum Transfer Width on page 7 16 Parity Check on page 7 17 Disconnecting Support on page 7 17 Maximum Tag Count on page 7 18 7 1 SCSI Channel Status Table To check and configure SCSI channels from the Main Menu select view and edit Scsi channels and press Return The following screen displays the status of all SCSI channels for this controller
12. The ability of a field replaceable unit FRU to be removed and replaced while the array remains powered on and operational The process of writing a specific pattern to all data blocks on all drives in a logical drive This process overwrites and destroys existing data on the disks and the logical drive Initialization is required to make the entire logical drive consistent at the onset Initialization ensures that any parity checks performed in the future will execute correctly fault tolerant logical drive fibre channel fibre channel HBAs fibre hubs groups hot spare hot swappable initialization Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Glossary 4 A section of disk storage space also referred to as a LUN that is presented to the host operating environment as a single physical drive A logical drive may be located on one or more physical drives Each array controller can manage one to eight logical drives The ability to change the virtual LUN as presented to the server from storage This enables such benefits as the ability of a server to boot from the SAN without requiring of a local disk drive Each server requires LUN 0 to boot The characteristic that enables an administrator to dynamically map an HBA to a specified LUN This provides an individual server or multiple servers access to an individual drive or to multiple drives and prohibits unwanted server access to the same drives Data
13. The controller will automatically start the cloning process by using the existing stand by local or global spare drive to clone the source drive Q Q View drive mei Scan scsi drive set slot Number Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 6 18 Note If there is no standby drive local global spare drive you need to add a new drive and configure it as a standby drive The cloning process begins with a notification message 21A1 LG 0 Logical Drive NOTICE CHL 1 ID 3 Starting Clone Press ESC to view current progress on a status bar 2 5 319 2QMB NONE NEW DRY To quit viewing the status bar press ESC to return to the previous menu screen Select the drive indicated as CLONING by pressing Return Select clone Failing drive again to view the progress You may identify the source drive and choose to View clone progress or Abort clone if you have selected the wrong drive eof 2 0 9 oma 6 SS asam 9 e 2 sia ov ie cione Abort clone y ource Drive Talat D 0 NONE NEW DRY The cloning progress is completed when the following notification message is displayed 21A2 LG 0 Logical Drive NOTICE CHL 1 ID 3 Clone Completed Chapter 6 Viewing and Editing SCSI Drives 6 19 6 Press ESC to clear the notification message and to see the SCSI drives status after the
14. _ ALERT Cooling Fan Failure Detected _ 3 23 SAF TE Device _ ALERT Elevated Temperature Alert _ 3f24 SAF TE Device _ ALERT UPS Power Failure Detected _ Controller on board 3 23 Peripheral Device ALERT CPU Temperature lt high low threshold gt Temperature Detected _ _C 3 23 Peripheral Device ALERT Board1 Temperature lt high low threshold gt Temperature Detected _ _C 3 23 Peripheral Device ALERT Board2 Temperature lt high low threshold gt Temperature Detected _ _C 3f22 Peripheral Device ALERT Controller FAN _ Not Present or Failure Detected 3 22 Peripheral Device ALERT Controller FAN _ lt high low threshold gt Speed Detected _RPM 3f21 Peripheral Device ALERT 3 3V lt upper lower threshold gt Voltage Detected _ 3f21 Peripheral Device ALERT 5V lt upper lower threshold gt Voltage Detected 3f21 Peripheral Device ALERT 12V lt upper lower threshold gt Voltage Detected C 0 6 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Temperature Sensor _ Failure Detected Temperature Sensor _ Not Present lt high low threshold gt Temperature _ Detected FAN _ Failure Detected FAN _ Not Present lt high low threshold gt FAN _ Speed Detected _ Power Supply _ Failure Detected Power Supply _ Not Present lt high low threshold gt Power Supply _ Voltage UPS _ AC Power Failure Detected UPS _ Battery Failure Detected Appendix C Event Messages 7
15. and press Return 2 Select a drive from the SCSI drive table and press Return Caution Scanning an existing drive will remove its assignment to any logical drive All data on that drive will be lost o 1 34732 160MB O ON LINE SEAGATE T336605LSUN36G view o 2 34732 160MB 0 ON LINE SEAGATE T336605LSUN366 Syst TEANN 1 ON LINE SEAGATE ST336605LSUN36G 1 lies drive information 1 ON LINE SEAGATE T336605LSUN366 Scan scsi drive set slot Number add drive Entry Identify scsi drive clone Failing drive disk Reserved space 256 mb ON LINE SEAGATE ST336605LSUN366 USED DRY SEAGATE ST336605LSUN366 ON LINE SEAGATE ST336685LSUN366 FIGURE 6 2 Scan scsi drive Option 3 Select the Scan scsi drive function and then press Return 8 1 34732 160MB O ON LINE SEAGATE T336605LSUN366 view view 2 8 ON LINE SEAGATE T336605LSUN366 view syst view view SOMONE MOM 32 160MB 1 ON LINE SEAGATE T336605LSUN366 SCSI Channel 2 H i The menu options will vary according to the drive status 32 160m8 1 ON LINE SEAGATE 1336605LSUN366 4 Select the drive channel and SCSI ID of the drive you want to scan and press Return 6 8 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 6 7 Deleting a Spare Drive To delete a spare drive perform the following steps 1 Move
16. view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters Communication Parameters Caching Parameters D _Write Back Cache Enabled B Optimization for Sequentia 70 Cont Optimization for Random 1 0 The default optimization mode is for Sequential Optimization mode for sequential is automatically applied to any logical configuration of drives larger than 512GB To select the optimization mode for all drives perform the following steps On the Main Menu select view and edit Configuration parameters then select Caching Parameters Select Optimization for Random I O or Optimization for Sequential I O Then press Return The Random or Sequential dialog box is displayed depending on the option you have selected Select Yes in the dialog box that follows to confirm the setting Chapter 8 Viewing and Editing Configuration Parameters 3 8 1 1 Write Back Write Through Cache Enable Disable The write back cache function significantly enhances controller performance Write through strategy is considered more secure if power failure should occur Because a battery module is installed power will be supplied to the data cached in memory and the cached writes can be completed when power is restored lt Main Menu gt Quick installation view and edit L
17. 1 8 24 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 1 Select view and edit Configuration parameters then Disk Array Parameters then press Return again The Disk Array Parameters menu is displayed Select Rebuild Priority then press Return A list of the priority selections Low Normal Improved or High is displayed The background rebuild process has four priority options Low the default which uses the controller s minimum resources to rebuild m Normal to speed up the rebuilding process Improved to speed up the rebuilding process m High to use the controller s maximum resources to complete the rebuilding process in the shortest possible time Select the desired setting then press Return Verification on Writes Normally errors may occur when a hard drive writes data In order to avoid the write error the controller can force the hard drives to verify the written data There are three selectable methods Verification on LD Initialization Writes Performs Verify after Write while initializing the logical drive Verification on LD Rebuild Writes Performs Verify after Write during the rebuilding process m Verification on LD Normal Drive Writes Performs Verify after Write during normal I O requests Each method can be enabled or disabled individually Hard drives will perform Verify after Write according to the selected method Note The ver
18. 1 3 4 RAID 0 1 Disk Striping with Mirroring 1 7 1 3 5 RAID 3 Disk Striping with Dedicated Parity Disk 1 3 6 RAID 5 Striping with Interspersed Parity 1 9 Local and Global Spare Drives 0 1 4 1 Local Spare Drive 1 10 1 4 2 Global Spare Drive 1 11 1 4 3 Having Both Local and Global Spares 2 Controller Defaults and Limitations 3 Battery Operation 1 14 RAID Planning Considerations 5 Basic Configuration 1 16 1 4 1 5 1 6 1 7 1 8 Accessing the Controller Firmware 2 1 Setting Up the Serial Port Connection 2 1 2 1 1 Accessing the Firmware Application from a Solaris Host 2 2 1 2 The Controller Firmware Initial Screens 4 2 1 3 Main Menu 2 5 Upgrading Firmware 2 5 2 1 22 Viewing and Editing Logical Drives 1 Introducing the Logical Drive Commands 3 2 Default Logical Drives and RAID Levels 3 Viewing the Logical Drive Status Table 3 4 Creating Logical Drive s 3 5 Changing a Logical Drive Controller Assignment 3 11 Partitioning a Logical Drive 3 13 Deleting a Logical Drive 3 16 Deleting a Partition of a Logical Drive 3 17 Assigning Logical Drive Name 3 18 Rebuilding a Logical Drive 3 19 Performing a Logical Drive Parity Check 3 20 Adding a SCSI Drive to a Logical Drive 3 21 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 10 3 11 3 12 iv v 3 13 Copying and Replacing Drives with Drives of Larger Capacity 3 25 3 14 Expanding a Logical Driv
19. 3 logical volume status 4 8 low level format 6 21 LUN described 5 3 explained 8 27 mapping definition Glossary 5 masking definition Glossary 5 per host SCSI ID 8 30 changing 8 30 LUN Applicability parameter 8 33 LUN defined 8 27 random or sequential optimization 8 3 SCSI timeout 8 19 ID SCSI deleting 0 identifying drives 1 10 6 13 8 9 Identifying SCSI drive command 6 13 idle drive failure detection 8 23 INCOMPLETE status 3 5 initial screen main menu 2 5 initialization definition Glossary 4 INITING status 3 4 international support Preface xiv INVALID status 3 4 J JBOD 1 5 explained 1 5 single drive control 1 5 L LCD title display controller name not applicable 8 13 limitations expanding 3 21 logical volume 4 3 redundant config 1 13 local spare assignment 3 9 local spare drives deleting 6 9 explained 1 11 logical drive 128 LUN limit 3 3 adding a SCSI drive 1 assign local spare 3 9 assigning name 3 18 change assignment 1 commands 3 2 logical drive Assignments 3 12 view and edit logical drives 3 4 3 16 copying and replacing 3 25 creating 3 2 3 5 3 8 defaults 3 3 definition Glossary 5 Index 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Optimization for Sequential I O command 8 3 optimization mode 1 15 2 limitations 2 random or sequential 8 3 out of band definition Glossary 5 P parameters cache 8 2 controller 2 drive
20. 720 NA RAIDO pet et ea el ate P1 76CD4DF6 NA RAID Partition Partition Size MB lt cuccecc lt Bo 15999 To delete a partition perform the following steps 1 Select view and edit Logical drives from the Main Menu and press Return 2 Select the logical drive which has a partition you want to delete then press Return 3 Select Partition logical drive Partitions of the logical drive will be displayed in tabulated form 4 Select the partition you want to delete then press Return Return 0 on the partition size to delete this partition Logical Drive 1000MB A a _ Partition 0 100MB parution 00M Partition 1 200MB a2 4 Partition 2 300MB Delete Partition 1 300MG A pe Partition L Partition 3 400MB Partition 2 600MB 400 200 FIGURE 3 3 Example of Deleted Partitions Chapter 3 Viewing and Editing Logical Drives 3 17 3 8 As illustrated in FIGURE 3 3 the capacity of the deleted partition 1 200MB will be added into the last partition now Partition 2 which combines 400MB and 200MB for a total of 600MB Caution As long as a partition has been changed it is necessary to reconfigure all host LUN mappings All the host LUN mappings will be removed with any partition change Assigning Logical Drive Name Naming a logical drive can help to identify different log
21. 8 10 Controller Parameters on page 8 12 Controller Name on page 8 12 LCD Title Display Controller Logo Not Applicable on page 8 13 Password Validation Timeout on page 8 13 Controller Unique Identifier on page 8 15 SDRAM ECC Function Do Not Change on page 8 15 Drive side SCSI Parameters on page 8 16 SCSI Motor Spin Up Do Not Change on page 8 17 SCSI Reset at Power Up Do Not Change on page 8 18 Disk Access Delay Time on page 8 19 SCSI I O Timeout on page 8 19 Maximum Tag Count Tag Command Queuing on page 8 21 SAF TE and S E S Enclosure Monitoring on page 8 22 Periodic Drive Check Time on page 8 22 Auto Detect Failure Drive Swap Check Time on page 8 23 Disk Array Parameters on page 8 24 8 1 CHAPTER 8 Rebuild Priority on page 8 24 a Verification on Writes on page 8 25 a Host side SCSI Parameters on page 8 27 Overview of SCSI Channel SCSI ID and LUN on page 8 27 Maximum Concurrent Host LUN Connections on page 8 28 Number of Tags Reserved for Each Host LUN Connection on page 8 29 Maximum Queued I O Count on page 8 29 LUNs Per Host SCSI ID on page 8 30 Cylinder Head Sector Mapping on page 8 31 m Peripheral Device Type Parameters on page 8 33 Setting an IP Address on page 8 34 8 1 Optimization Modes Caching Parameters
22. 8 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 C cabling single vs dual bus configurations 7 7 cache parameters 8 2 cache status 4 Caching Parameters command 8 4 check time periodic auto detection of failed drive swap 8 23 Clear drive status command 6 11 clone failing drive 6 16 perpetual clone 6 18 comments sending to manufacturer Preface xv concurrent rebuild 8 9 configuration minimum requirements 1 16 saving to disk 10 6 controller defaults 1 13 muting beeper 2 name 8 12 naming 8 12 8 13 optimization mode 1 15 parameter settings B 1 fault management 1 fibre channel B 1 optimization mode B 1 SCSI B 1 spin up B 1 parameters name 8 12 password validation timeout 8 13 Index 1 Index SYMBOLS FL 3 5 LN 3 5 SB 3 5 A Add Channel SCSI ID command 7 9 add drive Entry command 6 11 Add Global spare drive command 6 5 add Local spare drive command 6 4 add SCSI drives command 3 23 adding drive entry 6 11 global spare drive 6 5 host channel SCSI ID 7 9 local spare drive 4 SCSI drives 3 23 automatic rebuild 8 6 definition Glossary 3 B background rate definition Glossary 3 BAD drive status 6 3 battery support 1 14 baud rate 2 3 beeper muting 10 2 bus configurations 7 7 SCSI ID 7 10 spare drive 6 9 global or local 6 9 detection idle drive failure 3 device supports removable media peripheral device parameters 8 33 Disconnect su
23. A 5 TABLE A 5 Controller Hot Swap Redundant Controller Communication channel No Single point of failure Automatic engagement of replacement controller Dynamic cache memory allocation Environment management Cache battery backup Load sharing User configurable channel mode Redundant Controller rolling firmware upgrade Redundant Controller firmware synchronization Data Safety Features Description Supported Can be performed periodically by the user to ensure that bad sectors do not cause data loss in the event of drive failure Supported Automatic reassignment of bad block Supported The battery backup solutions provide long lasting battery support to the cache memory when power failure occurs The unwritten data in the cache memory can be committed to drive media when power is restored Supported Performs read after write during normal write processes to ensure data is properly written to drives Supported Performs read after write during rebuild write to ensure data is properly written to drives Supported Performs read after write during logical drive initialization to ensure data is properly written to drives Not used Default Disabled Users may choose to clone data from a failing drive to a backup drive manually User Interface Features Supports terminal modes ANSI VT 100 ANSI Color Provides menu driven user friendly text based interface Warns user when any failure or
24. Array Parameters Redundant Controller Parameters Controller Parameters To change the default number of nexus for a host the default setting is 4 perform the following steps 1 From the Main Menu select view and edit Configuration parameters Host side SCSI Parameters then press Return 2 Select Max Number of Concurrent Host LUN Connection then press Return A list of available selections is displayed Select an item then press Return 3 Select Yes in the dialog box that follows to confirm the setting 8 28 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Number of Tags Reserved for Each Host LUN Connection This function is used to modify the tag command queuing on the Host LUN connection The default setting is 32 tags with a predefined range of 1 to 256 Unless necessary the default factory setting should not be changed Each nexus has 32 the default setting tags reserved This setting ensures that the controller accepts at least 32 tags per nexus The controller will be able to accept more than that as long as the controller internal resources allow it if the controller does not have enough internal resources at least 32 tags can be accepted per nexus main menu 7 Quick installation Maximum Queued 1 0 Count 256 LUNs per Host SCSI ID 8 Max Number of Concurrent Host LUN Connect ion Def 4 De Parameters Hos Pe eral Device Type Pa Mapping Configuration
25. Controller Firmware The RAID controller firmware can be configured via a workstation running a terminal emulation program or on a VT 100 compatible terminal Topics covered in this chapter include Setting Up the Serial Port Connection on page 2 1 Upgrading Firmware on page 2 5 CHAPTER 2 Setting Up the Serial Port Connection The RAID controller can be configured by means of a Solaris workstation running a VT 100 terminal emulation program or by a Windows terminal emulation program such as HyperTerminal Note You can also monitor and configure a RAID array over an IP network with the Configuration Service program after you assign an IP address to the array For details refer to Appendix C in the Sun StorEdge 3310 SCSI Array Installation Operation and Service Manual and to the Sun StorEdge 3310 SCSI Configuration Service User Guide To set up the serial port connection perform the following steps 2 1 2 1 1 Use a serial cable to connect the COM port of the RAID array to serial port b on a Solaris workstation A DB9 to DB25 serial cable adapter is provided to connect the serial cable to DB25 serial ports on workstations Make sure that a null modem cable can be attached to the host serial port The null modem cable has serial signals swapped for connecting to a standard serial interface COM port COM FIGURE 2 1 RAID Array COM Port Connected Locally to the C
26. Fibre Connection Option Loop only Host side Parameters Drive side Parameters Disk Array Parameters Redundant Controller Parameters Controller Parameters From the Main Menu select view and edit Configuration parameters Host side SCSI Parameters then press Return Select Number of Tags Reserved for each Host LUN Connection then press Return A list of available selections is displayed Select an item then press Return Select Yes in the dialog box that follows to confirm the setting Maximum Queued I O Count This function allows you to configure the maximum size of the I O queue the controller can accept from the host computer by byte size The predefined range is from 1 to 1024 bytes or you may choose the Auto automatically configured mode The default value is 256 bytes Chapter 8 Viewing and Editing Configuration Parameters 9 8 6 3 8 6 4 lt Main Menu gt Quick installation view view view view Max Number of Concurrent Host LUN Connection Def Auto view Number of Tags Reserved for each Host LUN Connectiol 1 32 Peripheral Device Type Parameters 2 Host Cylinder Head Sector Mapping Configuration 4 6 Fibre Connection Option Loop only 6 ide Parameters 32 Drive side Parameters 221 64 Disk Array Parameters 128 Redundant Controller Parameters 256 Controller Parameters 512 1 From the Main Menu select view and edit Co
27. IP address to enter the firmware program To access the array using the Ethernet port you must set up an IP address for the controller To set the IP address netmask and gateway values of the RAID controller perform the following steps Access the array through the COM port on the controller module of the array On the Main Menu select view and edit Configuration parameters Select Communication Parameters then select Internet Protocol TCP IP Press Return on the chip hardware address and then select Set IP Address Enter the desired IP address NetMask and Gateway values Reset the controller for the configuration to take effect Select system Functions from the Main Menu then select Reset controller and press Return Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 8 8 8 34 Viewing and Editing Peripheral Devices This chapter describes viewing and editing parameters for peripheral devices Topics Viewing Peripheral Device Controller Status on page 9 2 Viewing Peripheral Device SAF TE Status on page 9 2 Setting Peripheral Device Entry on page 9 5 Setting the UPS Power Fail Signal on page 9 7 Viewing the Controller Voltage and Temperature Status Window on page 9 8 covered include lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and
28. Main Menu and press Return 2 Select the logical drive that you want to regenerate the parity for and then press Return 3 Select reGenerate parity then press Return 4 When prompted to Regenerate Parity select Yes Note If a regenerating process is stopped by a drive failure the process cannot restart until logical drive rebuild has been completed 3 20 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Adding a SCSI Drive to a Logical Drive RAID expansion allows users to expand a logical drive by adding new drives or by copying the data from the original member drives to the new drives and then replacing the original member drives without powering down the array Guidelines Expansion can only be performed on RAID 0 3 and 5 logical drives Expansion cannot be performed on an NRAID or RAID 1 logical drive When you add a drive to a logical drive you add a partition the size of the new drive to the logical drive Therefore if you have a single 200GB logical drive and add a 36GB drive the total logical drive will be 236GB with two partitions one 200GB and one 36GB All SCSI drives in a logical drive must be the same size namely 36GB or 73GB drives The new partition must be mapped to a host LUN in order for the HBA host bus adapter to recognize its presence If you want to add the new partition into an existing partition operating environment support is necessary Exp
29. Not Change SCSI Reset at Power Up Do Not Change Disk Access Delay Time SCSI I O Timeout Maximum Tag Count Tag Command Queuing SAF TE and 5 2 5 Enclosure Monitoring SAF TE and S E S Enclosure Monitoring Auto Detect Failure Drive Swap Check Time To access the drive side parameter list follow the next two steps Select view and edit Configuration parameters on the Main Menu Select Drive side SCSI Parameters then press Return The Drive side SCSI parameters menu is displayed ower Up Disabled Disk Access Delay Time 60 seconds SCSI I 0_Timeout 19 Seconds Maximum Tag Count Periodic Drive Check Time 10 seconds Periodic SAF TE and SES Device Check Time 5S_seconds Periodic Auto Detect Failure Drive Swap Check Time Disabled Drive Predictable Failure Mode SMART Detect Only Fibre Channel Dual Loop Enabled Drive side Parameters Dis Array Parameters Redundant Controller Parameters Controller Parameters Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 8 4 8 16 SCSI Motor Spin Up Do Not Change Motor Spin Up Disabled Enable SCSI Motor Spin Up nds Yes No D S M P seconds Periodic SAF TE and SES Device Check Time 5S_seconds Periodic Auto Detect Failure Drive Swap Check Time Disabled Drive Predictable Failure Mode SMART Detect Only Fibre Channel Dual Loop Enab Drive side Parameters Disk Array Parameters Redundant Controller P
30. October 2002 Setting a New Password lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit daar aE devices m Mute beeper 6 R 5 New Password _ To change the password perform the following steps Select system Functions in the Main Menu then press Return and select change Password Enter the desired password in the column then press Return The next dialog box will display Re Enter Password Enter the password again to confirm and press Return The new password will now become the controller s password Providing the correct password may be necessary when entering the Main Menu from the Initial screen Changing Password Select system Functions in the Main Menu then press Return Use the controller s password to protect the array from unauthorized entry Once the controller s password has been set the user can only configure and monitor the RAID controller by providing the correct password Rules The controller is able to verify the password when entering the Main Menu from the initial screen or making configuration change If the controller will be left unattended the Password Validation Timeout can be set to Always Check Setting validation timeout to always c
31. Over Java Based Software Disabled Sequential or Random Refer to Optimization for Random or Sequential I O on page 8 3 for a description 1 128 or Disabled Auto or 32 to 1024 Up to 32 1 2 to 30 seconds Disabled to 60 seconds 5 to 60 seconds 1 to 64 1 to 256 Manual function Low higher priority requires more array resource Disabled Reports to user interface and on board alarm Enabled Sequential cannot be changed after the creation of a logical drive 32 256 8 Disabled 5 Disabled 4 32 User Defined Parameter Fault Management 9 Clone Failing Drive Rebuild Priority Verification on Write Event Notification Optimization Mode 99 Write back Cache Optimization for Random Sequential SCSI Parameters 1 Maximum Tag Count 99 Maximum Queued I O Count 62 LUN s per SCSI ID Periodic Drive Check Time SAF TE SES Check Time Periodic Drive Swap Check Time Number of Host LUN Connection Tag per Host LUN Connection Legend Parameters that are configured at the initial array configuration Parameters that can be changed late 9 Non critical B 2 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 3 Keeping Specific Parameter Defaults TABLE 8 2 Parameter Defaults to Keep Default to Keep unless directed by Technical Support Disabled on drives Enabled 80 MHz Enabled Enabled Disabled Enabl
32. RAID The capacity of all the drives is combined to become one logical drive no block striping In other words the capacity of the logical drive is the total capacity of the physical drives NRAID does not provide data redundancy 1 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 2 GB Hard Drive O H 2 GB Hard Drive 1 GB Hard Drive E CO 2 GB Logical Drive 3 GB Logical Drive Logical Drive 2GB EI 2 GB Hard Drive Logical Drive JBOD Expansion Unit Single Drive Control Logical Drive 2 GB FIGURE 1 3 JBOD Configuration Physical Disks Block 2 Basic RAID Concepts and Planning Striping as 2 2 JBOD Expansion Unit stands for Just a Bunch of Disks The controller treats each drive as a stand alone disk therefore each drive is an independent logical drive JBOD Expansion Unit is a disk array without a controller and does not provide data redundancy RAID 0 Disk Striping Logical Drive Block 1 Block 2 Blocks Block 5 Block 6 8087 gt Boks _J FIGURE 1 4 RAID 0 Configuration Chapter 1 1 3 2 RAID 0 provides the highest performance but no redundancy Data in the logical drive is striped distributed across several physical drives Physical Disks Block 4 Block 4 RAID 1 Disk Mirroring Logical Drive Block 1 occa Block 3
33. Select SCSI I O Timeout Default 7 seconds then press Return A list of selections is displayed Move the cursor bar on a selection then press Return Select Yes in the dialog box that follows to confirm the setting Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 8 20 Maximum Tag Count Tag Command Queuing SCSI Motor Spin Up Disabled SCSI Reset at Power Up Disabled Disk Access Delay Time 60 seconds Periodic Drive ec ime 0 seconds Periodic SAF TE and SES Device Check Time 5S_seco Periodic Auto Detect Failure Drive Swap Check Time Drive Predictable Failure Mode SMART Detect Only Fibre Channel Dual Loop Enabled Drive side Parameters Disk Array Parameters Redundant Controller Parameters Controller Parameters This is the maximum number of tags that can be sent to each drive at the same time A drive has a built in cache that is used to sort all of the I O requests tags that are sent to the drive allowing the drive to finish the requests faster The cache size and maximum number of tags varies between different brands and models of drive Using the default setting of 32 is highly recommended Note Changing the maximum tag count to Disable will cause the Write Back cache in the hard drive to be ignored i e not used The controller supports tag command queuing with an adjustable tag count from 1 to 128 The default setting is Enabled with a maximum tag count o
34. Select the drive you want to identify and then press Return Select the Identifying scsi drive function Select flash All drives to flash the activity LEDs of all of the drives in the drive channel and press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns edit scsi Drives View drive information add Local Spare drive add Global spare drive Dele lt ON LINE HITACHI DK31CJ 72FcC flash Selected drive i flash all But selected drive EEEN clone Failing scsi drive Utilities FIGURE 6 5 Flash All Drives Function The option to change the Flash Drive Time is displayed Chapter 6 Viewing and Editing SCSI Drives 3 6 10 3 Confirm your choice by pressing Return and selecting Yes Alternatively to flash the read write LED of only a selected drive choose flash Selected drive or flash all But selected drive and perform the same procedure m gt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns ew and edit scsi Drives View drive information jaths Vendor nd Product I add Local spare drive add Global spare drive Delete globa Scan scsi ar 5 set slot Nd B add drive E Clear driv
35. Spin Up Do Not Change 8 17 8 4 2 SCSI Reset at Power Up Do Not Change 8 18 8 4 3 Disk Access Delay Time 8 19 8 4 4 SCSII O Timeout 8 19 8 4 5 Maximum Tag Count Tag Command Queuing 1 8 4 6 SAF TE and 5 2 5 Enclosure Monitoring 8 22 8 4 7 Periodic Drive Check Time 2 8 4 8 Auto Detect Failure Drive Swap Check Time 8 23 Disk Array Parameters 4 8 5 1 Rebuild Priority 4 8 5 2 Verification on Writes 8 25 Contents vii 8 2 8 3 8 4 8 5 8 6 Host side SCSI Parameters 7 8 6 1 Overview of SCSI Channel SCSI ID and LUN 7 8 6 2 Maximum Concurrent Host LUN Connections 8 8 6 3 Number of Tags Reserved for Each Host LUN Connection 8 29 8 6 4 Maximum Queued I O Count 8 29 8 6 5 LUNs Per Host SCSIID 8 30 8 6 6 Cylinder Head Sector Mapping 8 31 8 7 Peripheral Device Type Parameters 3 8 8 Setting an IP Address 4 9 Viewing and Editing Peripheral Devices 9 1 9 1 Viewing Peripheral Device Controller Status 2 9 2 Viewing Peripheral Device SAF TE Status 2 9 3 Setting Peripheral Device Entry 9 5 9 3 1 Redundant Controller Mode Do Not Change 9 5 9 3 2 Enable UPS Status 6 9 4 Setting the UPS Power Fail Signal 9 7 9 5 Viewing the Controller Voltage and Temperature Status Window 9 8 10 System Functions Info and Event Logs 10 1 10 1 System Functions 2 10 1 1 Muting the Beeper 2 10 1 2 Setting a New Password 3 10 1 3 Changing Password 10 3 10 1 4 Disabling the Password 14 10 1 5 Resetting Controller 4 10 1 6 Shutting Down the Controll
36. a Use the up and down arrow keys to select more drives ID xu RAID Size lt MB gt Status o s moma NAME a e e ona emote sess 9999 4 MB NONE NEW DRU SEAGATE 150 NONE NONE NONE 8 b After all physical drives have been selected for the logical drive press Esc key to continue to the next option After member physical drives are selected a list of selections is displayed Assign Logical Drive Assignments 5 Optionally set Maximum Physical Drive Capacity and assign spares a Optionally select Maximum Drive Capacity from the above menu and press Return Note Changing the maximum drive capacity will reduce the size of the logical drive and leave some disk space unused Maximum Available Drive Capacity MB 9999 B 9999 Maximum Drive Capacity As a rule a logical drive should be composed of physical drives with the same capacity A logical drive can only use the capacity of each drive up to the maximum capacity of the smallest drive b Optionally add a local spare drive from the list of unused physical drives Note A global spare cannot be created while creating a logical drive Chapter 3 Viewing and Editing Logical Drives 9 The spare chosen here is a local spare and will automatically replace any failed disk drive in this logical drive The local spare will not be available for any other logical
37. a greater value will cause the controller to keep waiting for a drive and it may sometimes cause a host timeout When the drive detects a media error while reading from the drive platter it will retry the previous reading or recalibrate the head When the drive encounters a bad block on the media it reassigns the bad block to another spare block However all of this takes time The time to perform these operations can vary between different brands and models of drives Chapter 8 Viewing and Editing Configuration Parameters 9 8 4 3 8 4 4 During SCSI bus arbitration a device with higher priority can utilize the bus first A device with lower priority will sometimes receive a SCSI I O timeout when devices of higher priority devices keep utilizing the bus SCSI Motor Spin Up Disabled SCSI Reset at Power Up Disabled Disk Access Delay Time 60 seconds Bscol 170 Timeout 10 seconds Maximum Tag Count Periodic Drive Check Time 10 seconds Periodic SAF TE and SES Device Check Time 5 seco Periodic Auto Detect Failure Drive Swap Check Time Drive Predictable Failure Mode SMART Detect Only Fibre Channel Dual Loop Enable Drive side Parameters Dis Array Parameters Redundant Controller Parameters Controller Parameters 1 Select view and edit Configuration parameters on the Main Menu 2 Select Drive side SCSI Parameters then press Return The Drive side SCSI parameters menu is displayed 3
38. a system drive to host ID LUN combination The SCSI ID is like a cabinet and the drawers are the LUNs LUN is short for logical unit number Each cabinet SCSI ID can have up to 32 drawers LUNs Data can be stored into one of the LUNs of the SCSI ID Most SCSI host adapters treat a LUN like another SCSI device The maximum number of LUNs which can be created for a RAID array is 128 To create a total of 128 LUNs refer to Planning for 128 LUNs on page 5 1 LUN 2 FIGURE 5 1 Filing Cabinet Represents the SCSI ID and File Drawers Represent the LUNs Chapter 5 Viewing and Editing Host LUNs 43 3 2 SCSI ID LUNs Each SCSI ID LUN looks like a storage device to the host computer Channel 3 Logical Drive 1 Logical Drive 0 Partition 0 Partition 2 Logical Drive 0 Partition 1 Logical Drive 1 Partition 1 1568 Logical Drive 0 06 Partition 0 To map a logical drive partition to a LUN perform the following steps Logical Drive 1 Partition 2 FIGURE 5 2 Mapping Partitions to Host ID LUNs 1 On the Main Menu select view and edit Host luns 2 Select a specific host channel ID and press Return Select a logical drive if prompted gt Main Menu gt Quick installation view and edit Logical drives view and edit ican Volumes v v H O Primar ontroller v ntroller E g st 5 ogica olume view Physical SCSI Drive 3 Select a
39. and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters edit UPS Power Fail Signal Active High vl Set Peripheral Device Entry Define Peripheral Devic Adjust LCD Contrast Controller Peripheral Device Configuratio Set UPS Power Fail Signal Active to Low No FIGURE 9 7 UPS Power Fail Signal 3 If you want to change the setting select the UPS Power Fail Signal function and press Return 4 A prompt will be displayed Select Yes to change the setting Chapter 9 Viewing and Editing Peripheral Devices 7 9 4 9 5 Viewing the Controller Voltage and Temperature Status Window To check the status of controller voltage and temperature perform the following steps 1 From the Main Menu select view and edit Peripheral devices and press Return m lt Hain Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit Peripheral devices View Peripheral Device Status Set Peripheral Device Entry Define Peripheral Device Active Signal Adjust LCD Contrast Controller Peripheral Device Configuration leew 2 Select Controller Peripheral Device Configuration and press Return 3 Select Vie
40. array a duplicate disk is maintained for fault tolerance RAID 1 does not improve performance over that of a single disk drive It requires 50 of total disk capacity for overhead One drive is dedicated to parity Data is divided into blocks and distributed sequentially among the remaining drives You need at least three physical drives for a RAID 3 logical drive Striping with fault tolerance this is the best suited RAID level for multi tasking or transaction processing In RAID 5 an entire transfer block is placed on a single drive but there are no dedicated data or Error Correction Code ECC drives The data and ECC are striped across each drive in the disk array so that each drive contains a combination of data and ECC blocks This allows data to be reconstructed on a replacement drive in the event of a single disk drive failure The primary advantages of RAID 5 are Provides fault tolerance Increases performance through the ability to perform both read and write seeks in parallel Low cost per usable megabyte of disk storage RAID 5 also requires at least 3 drives Chapter 1 Basic RAID Concepts and Planning 3 RAID Level RAID 0 RAID 1 RAID 3 RAID 5 1 3 1 3 1 NRAID Disk Spanning __ 2 68 Hard Drive 0 3 GB Hard Drive asus 0 2 GB Hard Drive Logical Drive FIGURE 1 2 NRAID Configuration 2 3 1 2 8GB Logical Drive NRAID stands for Non
41. by all of the layer 1 RAID controllers 4 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 RAID 5 5 Requires multiple RAID controllers In the RAID 5 5 array each layer 1 RAID controllers handles one to several RAID 5 logical drives and a layer 2 RAID controller performs RAID 5 to the virtual disks provided by all of the layer 1 RAID controllers RAID 10 Logical volume with RAID 1 logical drives RAID 30 Logical volume with RAID 3 logical drives RAID 5 Logical volume with RAID 5 logical drives 4 2 Creating a Logical Volume A logical volume consists of one or several logical drives To create a logical volume preform the following steps 1 Select view and edit logical Volumes in the Main Menu The current logical volume configuration and status will be displayed on the screen parameters vices ecuccece A 2 Select a logical volume number 0 7 that has not yet been defined then press Return to proceed A prompt Create Logical Volume is displayed 3 Select Yes and press Return Chapter 4 Viewing and Editing Logical Volumes 5 0 Pts 10 Lv staros fojan 06 ia Sees ie gt gt gt gt gt gt gt gt 4 Select one or more logical drive s available on the list and press Return to tag the logical drive s to be included in the volume An asterisk is displayed on the
42. cloning process The source drive Channel 1 ID 5 remains as a member of logical drive 0 and the stand by drive Channel 1 ID 2 the local or global spare drive has become a CLONE drive Qyic Stot ehi Status Vendor and Product 10 vis eo aof 6 of one a 20 of on time CS vist ofo sfam of ove O CLONE 2 syst of af aio aoe CS s 219 zone None 9 6 af zone none new ory 6 wone new ov 6 20 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 6 12 SCSI Drive Utilities Do Not Use These utilities are used for specific troubleshooting methods and should only be used by qualified technicians To access these utilities select view and edit scsi Drives on the Main Menu select the drive that the utility is to performed on then press Return Select scsi drive Utilities then press Return Choose SCSI Drive Low level Format or Read Write Test ID Size MB Speed LG_DRV Status Vendor and Product ID IBM DDRS 34S56 D View drive information Local spare drive IBM DDRS 3456 D dd Global spare drive Scan scsi drive IBM DDRS 3456a D set slot Number add drive Entry IBM DDRS 3456 D ident ify scsi drive Toggle failure signal IBM DDRS 3456 D scsi drive Utiliti i Reserved space unformatted IBM DDRS 3456 D NEW DRY TBM DDRS 3
43. desired interval then press Return Select Yes in the dialog box to confirm the setting 8 4 7 Periodic Drive Check Time The Periodic Drive Check Time is an interval for the controller to check the drives on the SCSI bus at controller startup a list of all detected drives can be seen under view and edit scsi Drives The default value is Disabled Disabled means that if a drive is removed from the bus the controller will not know that the drive is removed until a host tries to access that drive Changing the check time to any other value allows the controller to check at the selected interval all of the drives that are listed under view and edit scsi Drives If any drive is then removed the controller will know even if a host does not access that drive SCSI Motor Spin Up Disabled SCSI Reset at Power Up Disabled Disk Access Delay Time 60 seconds Disable SCSI I 0_Timeout 10 seconds Count 3 secon i i seconds i De seco seconds Periodic Ruto Detect Failure Brive Suan Check Time seconds Drive Predictable Failure Mode SMART Detect Only seconds Fibre Channel Dual Loop Enab Drive side Parameters Dis Array Parameters Redundant Controller Parameters Controller Parameters 8 22 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Auto Detect Failure Drive Swap Check Time The Drive Swap Check Time is the interval at which the controller checks to see whether a failed drive has bee
44. displayed To replace after clone perform the following steps Select view and edit scsi Drives and press Return Select the member drive that you wish to clone and press Return Select the clone failing drive function This option is displayed only if there is a standby drive available 6 11 6 11 1 6 16 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 3 Select Replace After Clone The controller automatically starts the cloning process using the existing stand by local or global spare drive to clone the source drive the target member drive with predicted error Quic Slot Size MB Speed LG_DRV Status Vendor and Product ID Quic view PO ON LINE ON ETNEN view View drive information ON LINE O O view Scan scsi drive view add drive Entry syst Identify scsi drive STAND BY 000000000 view eplace After one 5 Clone and Replace Drive No 4 The cloning process begins with a notification message 21A1 LG 0 Logical Drive NOTICE CHL 1 ID 3 Starting Clone Press ESC to proceed Drive Cloning 28 Completed NONE NEW DRY e as ae oe e The cloning process is indicated by a status bar 5 Select the drive indicated as CLONING by pressing Return To quit the status bar press ESC to return to the table of the connected drives Chapter 6 Viewing and Editing SCSI Drives 6 17 Quic Slot 1 Size MB Speed LG_DRV Status e
45. installation view view Maximum Queued 1 0 Count 6 view PLATS TENE TE view Max Number of Concurrent Host LUN Connection 16 view Number of Tags Reserved for each Host LUN Connectio Peripheral Device Type Parameters Host Cylinder Head Sector Mapping Configuration C Fibre Connection Option Point to point preferred 6 Host side SCSI Parameters EPES v v v Drive side SCSI Parameters Disk Array Parameters Redundant Controller Parameters Controller Parameters 3 Create at least four logical drives For the detailed procedure refer to Creating Logical Drive s on page 3 5 4 For each logical drive create a number of partitions per logical drive until you reach a total of 128 partitions then map those partitions to the host IDs For the detailed procedures refer to Partitioning a Logical Drive on page 3 13 and Mapping Logical Drive Partitions to Host LUNs on page 5 3 5 2 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Mapping Logical Drive Partitions to Host LUNs The next step is to map each storage partition as one system drive host ID LUN The host SCSI adapter will recognize the system drives after re initializing the host bus A SCSI channel SCSI bus can connect up to 15 devices excluding the controller itself when the Wide function is enabled 16 bit SCSI Each device has one unique ID The figure below illustrates the idea of mapping
46. lt NA Logical Drive Index gt Logical Drive ALERT CHL _ ID _ SCSI Drive Failure 2103 LG _ Logical Drive ALERT Rebuild Failed 2106 LG _ Logical Drive ALERT Add SCSI Drive Operation Failed 2102 LG _ Logical Drive ALERT Initialization Failed 2104 LG _ Logical Drive ALERT Parity Regeneration Failed 2105 LG _ Logical Drive ALERT Expansion Failed 2111 LG _ Logical Drive ALERT CHL _ ID _ Clone Failed Notifications 2181 LG _ Logical Drive NOTICE Starting Initialization 2182 Initialization of Logical Drive _ Completed 2183 LG _ Logical Drive NOTICE Starting Rebuild 2184 Rebuild of Logical Drive _ Completed 2185 LG _ Logical Drive NOTICE Starting Parity Regeneration 2186 Parity Regeneration of Logical Drive _ Completed 2187 LG _ Logical Drive NOTICE Starting Expansion 2188 Expansion of Logical Drive _ Completed 2189 LG _ Logical Drive NOTICE Starting Add SCSI Drive Operation 218a Add SCSI Drive to Logical Drive _ Completed 218b LG _ Logical Drive NOTICE Add SCSI Drive Operation Paused 218c LG _ Logical Drive NOTICE Continue Add SCSI Drive Operation 21a1 LG _ Logical Drive NOTICE CHL _ ID _ Starting Clone 21a2 LG _ Logical Drive NOTICE CHL _ ID _ Clone Completed Appendix 0 Event Messages C 5 C5 General Target Alerts SAF TE Device 3f21 SAF TE Device _ ALERT Power Supply Failure Detected _ 3 22 SAF TE Device _ ALERT Cooling Fan Not Installed _ 3 22 SAF TE Device
47. prompted and select the desired speed Host Channel p_i Main Menu gt Quick installation view and edit Logical drives view view channel Mode view view and edit scsi Id si a Syne Transfer Clock MYT scsi Terminstor ea CESS CT CLOCK v Wide transfer Clk DefWid 5 parity check Enabled vi view chip information mee v Host n 40 OMHz Wide n a m L LETS 2 orive el sorom miae e onf rerne er orive 7ra ao ai uiae i on arn 7 UVWOOVNO 00 4 e maa kr fl 6 gt Drive Channel Main Menu gt Quick installation view and edit Logical drives 00 view channel Mode Primary controller scsi id Secondary controller scsi id SE scsi v sync transfer efWid S Term CurSynCl1k Cur s Hide transter v View and edit scsi target v parity check_ Enable view chip information 3 5 Note Every time you change the clock speed you must reset the controller for the changes to take effect Chapter 7 Viewing and Editing SCSI Channels 3 7 8 7 9 Setting a Transfer Width Main Menu gt Quick instal ine vor view and edit Logical drives channel Mode view and edit scsi Id scsi Terminator transfer Clock P Enable Wide Transfer Defhid S Term CurSync1k Ccurkid E tat ae aa acu No Narrow T Async _ Narrow Drive 6J 40 0 H
48. redundant controllers in its nonvolatile memory This information is retained across array power interruptions RAID read policy rebuild spanning standby drive state Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Glossary 6 This is the amount of data in kilobytes that is striped across each physical drive in a logical drive The values are in increments of 8 kilobytes and range from 8 to 64 kilobytes Generally large stripe sizes are more effective for arrays with primarily sequential reads To change the stripe size on an existing drive you need to back up your data redefine the stripe size reconfigure the storage and restore all the data The storing of sequential blocks of incoming data on all the different SCSI drives in a logical drive For example if there are three SCSI drives in a logical drive data will be stored as follows block 1 on SCSI drive 1 block 2 on SCSI drive 2 block 3 on SCSI drive 3 block 4 on SCSI drive 1 block 5 on SCSI drive 2 etc This method of writing data increases the disk array throughput because multiple drives are working simultaneously retrieving and storing RAID 0 3 5 and 6 or 1 0 all use striping A part used to end a SCSI bus Terminators prevent energy from reflecting back into a cable plant by absorbing the radio frequency signals Also called a logical unit number or LUN a volume is one or more drives that can be grouped into a unit for data stor
49. status 2 Index 8 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002
50. the cursor to a local spare drive or global spare drive then press Return 2 Select Delete global local spare drive then press Return again 3 Select Yes to confirm vieu 2 e 9999 40 oj ef af 9955 aowe of on ttne ten onRs 3a56e0 ef ef 9959 of on time e Dors a45600_ INE IBM DDRS 3456 D View drive information Delete global local spare drive DDRS 3456 D can scsi drive set slot Number Delete Spare Drive DDRS 3456 D add drive Entry Identify 5051 driv DDRS 34562 D The spare drive you deleted or any drive you replaced from a logical unit will be indicated as a used drive Chapter 6 Viewing and Editing SCSI Drives 9 Setting Slot Numbers This function is used to optionally add a slot number identifier in the Slot column of the SCSI drive table This function has no effect on controller operation m gt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives 4 View drive information add Local spare drive aths Vendor and Product ID add Global spare drive 3 ON LINE HITACHI DK31CJ 72FC Delete global local spare drive 2 Scan scsi drive SAF TE SDR 0 o ON LINE HITACHI DK31CJ 72FC add drive Entry Slot Number Clear drive status Identifying scsi drive he clone Failing drive sesi drive Utilities
51. used to change the default drive SCSI IDs Caution To edit a drive channel SCSI ID may create conflicts with the controller communication channels and create confusion in tracking the status of drive IDs in either single bus or dual bus configurations For default drive channel IDs refer to Permanent SCSI Drive Channel IDs on page 7 7 Chapter 7 Viewing and Editing SCSI Channels 1 Setting a SCSI Channel Termination Do Not Change lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes i and edit Host luns channel Mode Primary controller scsi id Secondary controller scsi 1 108 Term CurSynC1lk CurWid 5051 Terminator 77 5 Disable Channel Terminator Typically the default setting is not changed 1 Select the channel you want the terminator enabled or disabled then press Return 2 Select scsi Terminator then press Return A dialog box is displayed 3 Select Yes then press Return Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 7 7 7 12 Setting a Transfer Clock Speed Typically the default setting for sync transfer clock is not changed for the host or drive channel To view the options for drive or host transfer clock speed select view and edit Scsi channels highlight the drive or host channel press Enter and select sync transfer Clock Select Yes if
52. 1 3 2 1 3 1 2 1 3 2 Upgrading Firmware For firmware upgrade procedures refer to Chapter 8 in the Sun StorEdge 3310 SCSI Array Installation Operation and Service Manual Chapter 2 Accessing the Controller Firmware 2 5 2 2 2 6 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 CHAPTER 3 Viewing and Editing Logical Drives This chapter explains how to view and edit Logical drives Topics covered include Introducing the Logical Drive Commands on page 3 2 Default Logical Drives and RAID Levels on page 3 3 Viewing the Logical Drive Status Table on page 3 4 Creating Logical Drive s on page 3 5 Changing a Logical Drive Controller Assignment on page 3 11 Viewing the Logical Drive Status Table on page 3 4 Partitioning a Logical Drive on page 3 13 Deleting a Logical Drive on page 3 16 Deleting a Partition of a Logical Drive on page 3 17 Assigning Logical Drive Name on page 3 18 Rebuilding a Logical Drive on page 3 19 Performing a Logical Drive Parity Check on page 3 20 Adding a SCSI Drive to a Logical Drive on page 3 21 Copying and Replacing Drives with Drives of Larger Capacity on page 3 25 Expanding a Logical Drive on page 3 28 3 1 Introducing the Logical Drive Commands On the Main Menu the view and edit Logical drives command is used to stripe physical SCSI drives into a logical drive lt Ma
53. 4 Select the controller which you want to add a host ID Main Menu gt Quick installation view and edit Logical drives view and edit logica olumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels i ID 2 E BLE econdary Controller elete anne 0 69 000 Ha memme e ee 5 Select an ID number for that controller Note To create a total of 128 LUNs you must have a minimum of four host IDs two each for Channels 1 and 3 and might have a maximum of six host IDs two each for Channels 1 and 2 and 3 Each host ID can have up to 32 partitions which are then mapped to LUNs to create a total not to exceed 128 6 From the Main Menu select system Functions then Reset controller The configuration change takes effect only after the controller is reset 7 5 Deleting a Host Channel SCSI ID lt Main Menu Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi_ channels pom Delete 0 Controller SCSI ID 7 To delete a host channel SCSI ID perform the following steps 1 On the Main Menu select view and edit Scsi channels and press Return 2 Press Return on a host channel line with the SCSI ID you want to delete 3 Select Delete Channel SCSI ID The dialog
54. 45600 OMB a On Line Ten __ DDRS 345600 Slot Chl ID Size MB LG_DRV Vendor and Product ID IBM DDRS 34560D View drive information ad Local spare drive DDRS 3456a D C WARNING 1 Channel 2 ID 6 SCSI Drvie 3456 D All data on the disk will be erased 0 3456 D tt Low Level Format Disk Yes L No Drive Low Leve CEN Read Write Test 1 ON LINE IBM DDRS 34562 D Caution All data the disk drive will be destroyed when you use this command Chapter 6 Viewing and Editing SCSI Drives 6 21 The SCSI disk drive on which a low level disk format will be performed cannot be a spare drive local or global nor a member drive of a logical drive The SCSI Drive Low level Format option will only appear if the drive status is a NEW or USED drive 1 Select view and edit scsi Drives on the Main Menu 2 Select a new or used drive that the utility is to performed on then press Return 3 Select scsi drive Utilities then press Return 4 Select scsi Drive Low level Format and confirm by selecting Yes Note Do not switch the controller or SCSI disk drive power off during the SCSI Drive Low level Format If any power failure occurs during a drive low level format the formatting must be performed again when power resumes SCSI Drive Read Write Test 1 Select view and edit scsi Drives on the Main Menu Select a new or used drive on which the utility is to b
55. 6 Block 8 1 3 5 Disk Logical Drive a Block 1 d 002 Block 3 Blows Boks _ Bocke _ Block 6 Block 8 Striping Block 1 Block 3 FIGURE 1 7 RAID 3 Configuration RAID 3 performs block striping with dedicated parity One drive member is dedicated to storing the parity data When a drive member fails the controller can recover 162007846 the lost data of the failed drive from the dedicated parity drive RAID 3 Minimum Disks 3 Required Capacity N 1 Redundancy Yes 1 8 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 RAID 5 Striping with Interspersed Parity Physical Disks Striping non dedicated Parity Block 7 He Block 8 Logical Drive Block 1 Block 2 A Block 3 8086 _ Block 6 Block 8 FIGURE 1 8 RAID 5 Configuration RAID 5 is similar to RAID 3 but the parity data is not stored in one dedicated hard drive Parity data is interspersed across the drive array In the event of a failure the controller can recover regenerate the lost data of the failed drive from the other N 1 Chapter 1 Basic RAID Concepts and Planning 1 9 surviving drives RAID 5 Minimum Disks Required Capacity Redundancy 1 3 6 Local and Global Spare Drives The external RAID controllers provide both local spare drive and global spare drive functions The loc
56. 7 74 Creating Additional Host IDs 7 9 7 5 Deleting a Host Channel SCSI ID 7 10 7 6 Drive Channel SCSI IDs Do Not Change 7 11 7 7 Setting a SCSI Channel Termination Do Not Change 7 12 7 8 Setting a Transfer Clock Speed 3 7 9 Setting a Transfer Width 7 14 7 10 Viewing and Editing SCSI Target Drive Channel 7 15 7 10 1 Slot Number 7 16 7 10 2 Maximum Synchronous Transfer Clock 6 7 10 3 Maximum Transfer Width 6 7 10 4 Parity Check 7 17 7 10 5 Disconnecting Support 7 17 7 10 6 Maximum Tag Count 7 18 8 Viewing and Editing Configuration Parameters 8 1 8 1 Optimization Modes Caching Parameters 8 2 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 8 1 1 Optimization for Random or Sequential I O 3 8 1 2 Write Back Write Through Cache Enable Disable 4 Controller Failure Symptoms Logical Drive Rebuild and Replacement 8 5 8 2 1 General Controller Failure Response 8 5 8 2 2 Automatic Logical Drive Rebuild 8 6 8 2 3 Manual Rebuild 6 8 2 4 Concurrent Rebuild in RAID 0 1 8 9 8 2 5 Identifying a Failed Drive for Replacement 9 8 2 6 Restoring Your Configuration NVRAM Froma File 9 8 2 7 Determining Fatal Drive Failure 8 10 Controller Parameters 8 12 8 3 1 Controller Name 8 12 8 3 2 LCD Title Display Controller Logo Not Applicable 3 8 3 3 Password Validation Timeout 8 13 8 3 4 Controller Unique Identifier 5 8 3 5 SDRAM ECC Function Do Not Change 8 15 Drive side SCSI Parameters 8 16 8 4 1 SCSI Motor
57. 80 gt gt Chapter 3 Viewing and Editing Logical Drives 3 23 5 Press ESC again to cancel the notification prompt A status bar indicates the percentage of progress oslo T ware eize Seaton TO ines INA 06 gt gt gt gt gt 80 gt gt maa 2 3 Upon completion a confirming notification message is displayed Add SCSI Drive to Logical Drive 0 Complete The capacity of the added drive is displayed as an unused partition lt Main Menu gt Quick installation LUN LV LD DRV Part ition Size MB RAID view and edit Logical drives view and edit log ical Volumes LD l 9999 RAIDS vie view a The added capacity will be included in the logical drive automatically meaning that you do not have to perform Expand logical drive later 6 However if the logical drive has already been mapped with a host LUN you have to map the added capacity to another host ID LUN to make use of it In the above example of view and edit Host luns the original capacity is 9999MB its host LUN mapping remains unchanged and the added capacity is displayed as the second partition 3 24 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Copying and Replacing Drives with Drives of Larger Capacity You can expand a logical drive by copying and replacing all member drives with drives of higher c
58. A No SCSI ID applied SID Secondary controller s SCSI ID mapping 6 Multiple SCSI IDs Host Channel mode only x The SCSI ID for host LUNs mapped to this channel in host channel mode SCSI ID for the secondary controller in drive channel mode NA No SCSI ID applied DefSynClk Default SCSI bus synchronous clock xx xMHz Maximum synchronous transfer rate set to xx x Async Channel is set for asynchronous transfers DefWid Default SCSI bus width Wide Channel is set to allow wide 16 bit transfers Narrow Channel is set to allow narrow 8 bit transfers S Signal S Single ended L LVD F Fibre Term Terminator status On Termination is enabled Off Termination is disabled Chapter 7 Viewing and Editing SCSI Channels 3 Parameters Displayed in the SCSI Channel Window Continued Description NA For a redundant controller communications channel RCCOM Current SCSI bus synchronous clock xx xMHz The current speed at which the channel is communicating Async The channel is communicating asynchronously or not device is detected empty The default SCSI bus synchronous clock has changed Reset the controller for changes to take effect Current SCSI bus width Wide The channel is currently servicing wide 16 bit transfers Narrow The channel is currently servicing wide 8 bit transfers empty The default SCSI bus width has changed Reset the controller for the changes to take effect TABLE 7 1 Parameters Cur
59. ALERT Drive HW Error _ 1113 CHL _ ID _ SCSI Drive ALERT Bad Block Encountered _ _ 1114 CHL _ ID _ SCSI Target ALERT Unit Attention Received 1115 CHL _ ID _ SCSI Drive ALERT Unexpected Sense Received _ 1116 CHL _ ID _ SCSI Drive ALERT Block Reassignment Failed _ _ 1117 CHL _ ID _ SCSI Drive ALERT Block Successfully Reassigned _ _ 1118 CHL _ ID _ SCSI Drive ALERT Aborted Command _ 1142 SMART CH _ ID _ Predictable Failure Detected TEST 1142 SMART CH _ ID _ Predictable Failure Detected 1142 SMART CH _ ID _ Predictable Failure Detected Starting Clone 1142 SMART CH _ ID _ Predictable Failure Detected Clone Failed Appendix C Event Messages 3 Notifications 1161 CHL _ ID _ SCSI Drive NOTICE Scan scsi drive Successful C 3 SCSI Channel Events Alerts 113f CHL _ ALERT Redundant Loop Connection Error Detected on ID _ 113f CHL _ SCSI Drive Channel ALERT SCSI Channel Failure 113f CHL _ ALERT Fibre Channel Loop Failure Detected 113f CHL _ ALERT Redundant Loop for Chl _ Failure Detected 113f CHL _ ALERT Redundant Path for Chl _ ID _ Expected but Not Found 113f CHL _ ID _ ALERT Redundant Path for Chl _ ID _ Failure Detected Notifications 113f CHL _ NOTICE Fibre Channel Loop Connection Restored 113f CHL _ ID _ NOTICE Redundant Path for Chl _ ID _ Restored 0 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 C 4 Logical Drive Events Alerts 2101 LG
60. B local spare drive will aid logical drive 0 once a drive in this logical drive fails If the failed drive is in logical drive 1 or 2 the 4 GB global spare drive will immediately give aid to the failed drive 1 12 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Controller Defaults and Limitations The following controller functions describe the redundant controller operation Both controllers must be exactly the same Namely they must operate with the same firmware version the same size of memory the same number of host and drive channels etc When a replacement controller is placed in a system the firmware of the first controller automatically synchronizes overwrites the firmware of the second controller to be the same firmware In redundant mode the maximum number of disk drive IDs on a SCSI drive channel is 16 IDs 6 and 7 are used for host HBA connections Both controllers must be initially configured as primary controllers Upon bootup in a redundant configuration the controllers autonegotiate and designate one controller as primary and the other controller as secondary The two controllers behave as one primary controller Once the redundant configuration takes effect user configurations and settings can be done only on the primary controller The secondary controller then synchronizes with the configuration of the primary controller making the configurations of the two cont
61. Block 4 Block 5 Block 7 Block 8 te So ee FIGURE 1 5 RAID 1 Configuration RAID 1 mirrors the data stored in one hard drive to another RAID 1 can only be performed with two hard drives If there are more than two hard drives RAID 0 1 will be performed automatically 1 3 3 1 6 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 1 3 4 RAID 0 1 Disk Striping with Mirroring as Physical Disks Logical Drive er 40061 2 i Block 4 Block 2 i Block 6 SS vee i 008 A Block 8 Block 4 Mirroring h 085 _ D h 80086 _ Block 4 Bort Block d Boks Block 6 2 Block 8 FIGURE 1 6 RAID 0 1 Configuration RAID 0 1 combines RAID 0 and RAID 1 Mirroring and Striping RAID 0 1 allows multiple drive failure because of the full redundancy of the hard drives If there are more than two hard drives assigned to perform RAID 1 RAID 0 1 will be performed automatically Note RAID 0 1 will not appear in the list of RAID levels supported by the controller If you want to perform RAID 1 the controller will determine whether to perform RAID 1 or RAID 0 1 This will depend on the number of drives that has been selected for the logical drive Chapter 1 Basic RAID Concepts and Planning 7 RAID 3 Disk Striping with Dedicated Parity Physical Disks Dedicated Parity Block 4 Block
62. CSI I O timeout 8 19 SDRAM ECC 8 15 UPS alert notification level 7 Define Peripheral Device Active Signal command 9 7 Delete Channel SCSI ID command 7 10 Delete global local spare drive command 6 9 deleting drive entries 6 11 host channel SCSI ID 7 10 logical drive 3 16 partition of a logical drive 3 17 partition of logical drive 3 17 caution 3 SCSI drive table slot number 6 11 Index 2 Sun StorEdge 3310 SCSI RAID Firmware Guide selected SCSI drives 6 14 format low level 6 21 G gauge range 4 GBIC definition Glossary 1 global spare drive 1 11 creating 6 5 deleting 6 9 explained 1 11 groups definition Glossary 4 H head mapping 8 31 host application 1 15 host channel commands 7 4 host channel SCSI ID adding 7 9 deleting 7 10 Host Cylinder Head Sector Mapping Configuration command 8 31 host IDs adding 7 9 host LUN connection number of tags reserved 8 29 example mappings 5 6 mapping deleting 5 7 host LUN connections 8 28 host side parameters 8 27 hot spare definition Glossary 4 hot swappable definition Glossary 4 l 1 O maximum queued count 8 29 Index 3 event logs viewing on screen 10 7 Execute Drive Testing command 6 22 Expand logical drive command 3 29 Expand logical volume command 4 7 expanding limitations 3 21 logical drive 3 28 copy and replace 3 25 logical volume 4 4 4 7 expansion limitations 3 21 F fabri
63. D BY the SCSI drive is a local spare drive of logical drive x Status GLOBAL The SCSI drive is a global spare drive INITING The drive is initializing ON LINE The drive is in good condition REBUILD The drive is rebuilding Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 6 1 6 2 3 TABLE6 1 Parameters Displayed in the Drive Status Window Continued Parameters Description STAND BY Local spare drive or global spare drive The local spare drive s LG_DRV column shows the logical drive number The global spare drive s LG_DRV column shows Global NEW DRV The new drive has not been configured to any logical drive or as a spare drive USED DRV The drive was previously configured as a logical drive or as a spare drive but is not currently configured BAD Failed drive ABSENT Drive slot is not occupied MISSING Drive once existed but is now missing SB MISS Spare drive missing Vendor and Vendor and product model information of the drive Product ID To handle BAD drives refer to Controller Failure Symptoms Logical Drive Rebuild and Replacement on page 8 5 If two drives show BAD and MISSING status see Determining Fatal Drive Failure on page 8 10 Chapter 6 Viewing and Editing SCSI Drives 6 2 Assigning a Local Spare Drive Maximum Drive Capacity 3999MB Vendor and Product ID Speed LG_DRV Status Slot Ch1 ID Size MB NONE NEW DRV NONE NE
64. Drive LED 60 00000 O Chapter 6 Viewing and Editing SCSI Drives 5 Cloning Failing Drive To assist fault prevention a system administrator can manually perform Clone Failing Drive to a drive which is about to fail System administrators can decide when to replace a drive showing symptoms of defects by a healthy drive A system administrator may also replace any drive at will even when a source drive is healthy The Clone Failing Drive is performed under the following conditions Replacing drives about to fail notified by controller Manually replacing and cloning drive data on any drive to a new drive There are two options for cloning a failing drive m Replace after Clone m Perpetual Clone Replacing After Clone Data on the source drive the drive with predicted error or any selected member drive will be cloned to a standby spare and the spare will then become the new source drive The status of the original source drive is redefined as a used drive System administrators may replace the used drive with a new one and then configure the new drive as a spare drive Note If there is no standby drive local or global spare drive you need to add a new drive and configure it as a standby drive If there is no standby drive the clone failing drive option will not be
65. FIGURE 6 3 Set Slot Number To set or edit a slot number perform the following steps On the Main Menu select view and edit scsi Drives and press Return A list of the connected SCSI drives is displayed Select a drive from the SCSI drive table and press Return Select the set slot Number function and press Return An entry box will be displayed Type in a value 0 15 that represents the slot number of the drive and press Return This value does not need to be the device s predetermined SCSI ID number The slot number is displayed in the Slot column of the drive information list Assigning a Slot Number to an Empty Slot When there is an empty slot or sled which does not contain a drive the corresponding SCSI channel ID will not appear in the drive information list You can assign a slot number to the empty slot and add a drive entry in order to use it later when a drive is installed 6 8 6 8 1 6 10 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 2 Deleting a Slot Number To delete the slot number of a SCSI drive perform the following steps 1 On the Main Menu select view and edit scsi Drives and press Return 2 Select the desired SCSI drive and press Return 3 Select Set Slot Number select 0 and press Return 6 9 Adding or Deleting Drive Entries This function is used to add an additional record to the SCSI drive table Use t
66. GB Head 63 Sector 32 Cylinder depends on capacity 64GB lt capacity lt 128GB Head 64 Sector 64 Cylinder depends on capacity 128GB lt capacity lt 256GB Head 127 Sector 64 Cylinder depends on capacity 256GB lt capacity lt 512GB Head 127 Sector 127 Cylinder 512GB lt capacity lt 1TB Head 255 Sector 64 Cylinder depends on capacity 1TB lt capacity Head 225 Sector 225 Cylinder depends on capacity Sector 32 64 127 255 or Variable Head 64 127 255 or Variable Cylinder lt 1024 lt 32784 lt 65536 or Variable Supported The controller will send spin up start unit command to each drive at 4 sec intervals Supported User adjustable up to 128 for each drive User adjustable up to 1024 Appendix A Firmware Specifications 3 Advanced Features TABLE A 3 Feature Drive Low level format Drive Identification Drive Information Listing Drive Read Write testing Configuration on Disk Save Restore NVRAM to from Disks Save Restore NVRAM to from file Host LUN Geometry User Configurable Default Geometry User Configurable Geometry range Drive Motor Spin up Drive side Tag Command Queue Host side Maximum Queued 1 0 count TABLE A 3 Advanced Features Maximum concurrent Host User adjustable up to 64 LUN connection Number of Tags Reserved for User adjustable up to 256 each Host LUN connection Drive I O timeout User adjustable TABLE A 4 RAID Expansion Fea
67. H 0 and CH2 when it is connected to an Expansion Unit 0 66600 O RAID Array Dual Bus Configuration Default IDs Disk 7 Disk 8 Disk 9 2 L CH2 ID3 ll CH2 IDS L a O aaa 1 Disk 5 cH2 1D4 O J Disk 4 J Disk 6 C1 oo oo oo CH2 ID0_ CH2 ID1 1 J Expansion Unit Dual Bus Configuration Default IDs CHO IDO 1 Disk 0 CHO ID3 oo 0 ee CHO ID1 1 009 J Disk 11 CHO ID4 L O 0 1 Disk 2 CHO ID5 L o m en Oo ml 5 7 I 5 CH0 ID8 L ge 4 Disk 10 a 1D11 1 CHO ID9 oo Disk 11 CH0 ID12 O ee 0 CHo ID10 WW Disk 2 CHO ID13 0 L J O Disk 7 Disk 8 Disk 9 2 1 3 1 CH2 1D11 6 ana O ee O O Disk 4 L Disk 5 L Disk 6 L 00 00 CH2 ID8 CH2 ID9 0 For JBOD cabling and drive ID information refer to the appendix on JBODs in the Sun StorEdge Installation Operation and Service Manual JBODs are arrays without controllers which are connected directly to host servers Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Disk 4 J Disk 2 I Disk 3 O 1 Disk 1 J Disk 2 O 1 Disk 3 8
68. I 8 28 NRAID 1 4 disk spanning 1 4 Number of Tags Reserved for each Host LUN Connection Command 8 29 NVRAM saving to disk 10 6 0 Optimization for Random I O command 8 3 planning 1 15 selected 3 8 read ahead policy definition Glossary 6 read policy definition Glossary 6 Read Write Test 2 rebuild automatic 8 6 concurrent in RAID 0 1 8 9 definition Glossary 6 manual 8 6 Rebuild logical drive command 3 19 Rebuild Priority command 8 25 rebuilding 4 logical drive 3 19 redundant controller explained 8 5 Regenerate Parity command 3 20 remote file 2 3 replace after clone clone failing drive 6 16 Replace After Clone command 6 17 reset controller controller reset 3 12 RS 232 connecting to 2 5 SAF TE enclosure monitoring 8 22 saving configuration to disk 10 6 SB MISS drive status 6 3 Scan SCSI drive command 6 8 scanning new SCSI drive 6 8 scanning a new SCSI drive 6 8 SCSI channel explained 8 27 setting termination 7 12 status 7 2 terminator 7 12 drive side parameters 8 17 I O timeout 9 ID October 2002 Peripheral Device Qualifier parameter 8 33 perpetual clone clone failing drive 6 18 phone support Preface xiv phyical drives listed 3 7 6 7 physical array definition Glossary 5 physical drive capacity setting 3 9 physical drives parameters 6 1 primary secondary controller ID 7 9 Q quick installation 2 5 warning 5 R RAID advantages 1 3 con
69. ID 1 Secondary Contro CHL 3 ID 2 Secondary Control CHL 3 ID 3 Primary Controll Edit Host ID WWN Name List qeeqeunccce Quick installation Quick installation 5 2 1 5 6 gt Main Menu gt Quick installation LUN LV LD DRV Partition Size MB RAID view and edit Logical drives view and edit logical Volumes RAIDS view and 601 705 MS v 1 LD 2 1 400 RAIDS v CHL 1 ID 0 Primary Controll v CHL 1 ID 1 Secondary Contro 2 LD 2 2 400 RAIDS v CHL 3 ID 2 Secondary Contro s ME 3 LD 2 3 400 RAIDS v Edit Host ID WWN Name List v 4 LD 2 4 400 5 5 LD 2 5 400 RAIDS 6 LD 2 6 400 RAIDS 7 LD 2 7 400 RAIDS Deleting a Host LUN Mapping To delete a host LUN mapping perform the following steps On the Main Menu select view and edit Host luns Highlight the channel and ID which is mapped to the host LUN and press Return Highlight the specific host LUN and press Return Select Yes to delete the host LUN This option deletes the logical drive or logical volume mapping to the host channel This option will not delete the data contained within the logical drive Note All host LUN mappings are removed when there is any partition change Chapter 5 Viewing and Editing Host LUNs 7 5 3 5 8 Sun St
70. LUN number and press Return Select a logical drive then highlight a partition and press Return 5 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 LUN LY LD DRYV Partition Size MB Size MB 8 55 0 1 1 a Select Map Host LUN vp HS reate Hos ilter Entry Confirm the mapping scheme by selecting Yes Logical Drive Partition Benne The same partition might be mapped to multiple LUNs on multiple host channels This feature is necessary for clustered environments and redundant path environments Press Esc key to return to the Main Menu Repeat the above procedure for each partition until all partitions are mapped to a LUN Select system Functions on the Main Menu and select Reset Controller to implement the new configuration settings To verify unique mapping of each LUN unique LUN number unique DRV number or unique Partition number select the view and edit Host luns command and press Return Reboot the host s to complete the settings and confirm that LUNs are connected to and visible by the hosts For additional Solaris operating environment information refer to Chapter 6 in the Sun StorEdge 3310 SCSI Array Installation Operation and Service Manual Chapter 5 Viewing and Editing Host LUNs 5 10 The following example screens illustrate four channel IDs with 8 LUNs per channel Ex
71. Mass storage applications fall into two major categories database applications and video imaging applications The controller supports two embedded optimization modes Optimization for Random I O and Optimization for Sequential I O Limitations There are limitations on the optimization modes First one optimization mode must be applied to all logical units in a RAID array Second once the optimization mode is selected and data written in logical units the only way to change the optimization mode is to back up all data to another location delete all logical configurations of drives reconfigure the logical drive configuration with the new optimization mode and reboot the array The limitation derives from the consideration with the redundant configuration of controllers Data inconsistency might occur when a controller pre configured with one optimization mode is used to replace a failed controller with different mode m Database and Transaction based Applications This kind of application usually includes an SQL server Oracle server Informix or other database services These applications keep each transaction within the minimal size so that I O transfers will not be clogged by one large transaction Due to its transaction based nature these applications do not read or write data in a sequential order Instead access to data occurs randomly The transaction size ranges from 2K to 4K Transaction based performance is usually measured in I O
72. OM Port of a Workstation or Computer Terminal Power up the array Set the serial port parameters on the workstation as follows 38400 baud 8 bit 1 stop bit no parity Accessing the Firmware Application from a Solaris Host See Redefining the Baud Rate for the tip Command on page 2 3 for setting serial port parameters on a Solaris host See Using the tip Command for Local Access to the Array on page 2 3 for instructions on using the Solaris tip command 2 4 2 2 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Redefining the Baud Rate for the tip Command This section describes the method for using the Solaris tip command to access the array Before you can use the tip command you must redefine the baud rate The tip command uses the 9600 baud specified in the etc remote file on the Solaris host by default The serial port of the array requires 38400 baud so you must edit the etc remote file and revise your use of the tip command to use the 38400 baud rate To edit the etc remote file for the 38400 baud rate perform the following steps In the etc remote file copy and edit the hardware line as follows Locate hardware dv dev term b br 9600 el Copy the hardware line into a blank line below the hardware line rename the hardware term as ss3000 and replace 9600 with 38400 The editing will look like the following line ss3000 dv dev term b br 38400 el Sav
73. Return The following prompt then is displayed Partitioning the Logical Drive will make it no longer eligible for membership in a logical volume Continue Partition Logical Drive 5 Select Yes A list of the partitions for this logical drive is displayed If the logical drive has not yet been partitioned all the logical drive capacity will list as partition 0 6 Press Return and type the desired size for the selected partition and then press Return to proceed NAME LU RAID Size lt MB Partition oFfset lt HB gt Size MB gt PO NA 8 Partition Size 68702 8 A warning prompt is displayed This operation will result in the loss of all data on the partition Partition Logical Drive ecceccHo 3 14 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 7 Select Yes 8 Press Return to confirm The remaining capacity of the logical drive will be automatically allotted to the next partition In the following figure a partition size of 3000MB was entered the remaining storage of 27000 MB is allocated to the partition below the partition created 4066666680 9 Repeat the preceding steps to partition the remaining capacity of your logical drive You can create up to 32 partitions per logical drive with a total number of partitions not to exceed 128 partitions LUNs per the RAID array Note When you modify a partition or lo
74. S a a a E aM 2 9 of ontime CS 9 2 a19 28 of on Line _CLONING Abort clone y e ource Drive anne D 6 NONE NEW DRY 6 Select clone Failing drive again to view the current status You may identify the source drive and choose to View clone progress or Abort clone if you selected the wrong drive When the process is completed the following message is displayed 21A2 LG 0 Logical Drive NOTICE CHL 1 ID 3 Clone Completed Press ESC to proceed 6 11 2 Perpetual Clone Data on the source drive the drive with predicted error or any selected member drive will be cloned to the standby spare but the spare will not become the new source drive The standby spare drive will clone the source drive member drive with predicted error or any selected drive without substituting it The status of the spare drive will be displayed as a CLONE drive after the cloning process The source drive will remain as a member of the logical drive 1 In view and edit scsi Drives press Return on the member drive with predicted error Select clone Failing drive and choose Perpetual Clone Quic view view view view view view syst view view Size MB eor DRV Status Vendor and Product ID PO _ON L INE ON LINE a rive ntry Identify scsi drive NONE NEW ORV Replace After Clone NONE NEW DRV 2 Perpetual Clone Drive No
75. StorEdge 3310 SCSI Array Safety Regulatory and Compliance Manual before beginning any procedure in this manual gt How This Book Is Organized This book contains the following topics Chapter 1 introduces the RAID terminology concepts Chapter 2 describes how to access the array via the COM port and a terminal emulation program Chapter 3 describes the view and edit Logical drives command and related procedures Chapter 4 describes the view and edit logical volumes command and related procedures Chapter 5 describes the view and edit Host luns command and related procedures xi Chapter 6 describes the view and edit scsi Drives command and related procedures Chapter 7 describes the view and edit Scsi channels command and related procedures Chapter 8 describes the view and edit Configuration parameters command and related procedures Chapter 9 describes the view and edit Peripheral devices command and related procedures Chapter 10 describes the system functions command array information and event logs Appendix A provides the array firmware specifications Appendix B summarizes controller parameters for optimization and parameter defaults which should not be changed Appendix C lists the event messages The Glossary provides RAID terminology and definitions used throughout the product documentation Using UNIX Commands This document might no
76. SynClk CurWid SCSI Drive Channel Commands In the view and edit Scsi channels window highlight a SCSI drive channel and press Return to view the additional commands available for drive channels m lt Hain Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit 5651 channels T T T T T Ch efWid Term CurSynC1k CurWid m channel Hode Primary controller scsi id Wide IL Off 80 2 t Secondary controller scsi id 1 scsi Terminator Wide L Off 20 0MHz Wide sync transfer Clock 2 Wide transfer Wide L Off Async Narrow View and edit scsi target 3 parity check Enabled Wide L Off 80 0MHz Wide view chip information 6 erial F NA 1 GHz Serial PPE Toe 7 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 SCSI Host Channel Commands In the view and edit Scsi channels window highlight a SCSI host channel and press Return to view the additional commands available for host channels lt Main Menu gt Quick installation view and edit Logical drives view view ETE ee view view and edit scsi Id scsi Terminator sync transfer Clock v Ch Wide transfer Clk 61010 5 Term CurSynC1k CurWid parity check Enabled v view chip information Hz Wide L Of
77. To reset the controller without powering off the array select Reset Controller then press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit a devices v Mute beeper change Password 5 C Reset Controller BITE 6 3 Select Yes in the dialog box that follows then press Return The controller will now reset as well as power off or re power on 10 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 10 1 6 Shutting Down the Controller Restricted Use Do NOT use this command unless directed by Technical Support The Shutdown Controller command erases the cache content 10 2 Restoring Configuration NVRAM from a File If you have saved a configuration file and want to apply the same configuration to another array or re apply it to the array which had the configuration originally you must be certain that the channels and SCSI IDs in the configuration file are correct for the array where you are restoring the configuration The NVRAM configuration file will restore all configuration settings channel settings host IDs etc but does not rebuild logical drives To save a configuration file refer to Saving Configuration NVRAM to Disk on page 10 6 lose access to the mismatched cha
78. Viewing the Connected Drives Prior to configuring disk drives into a logical drive it is necessary to understand the status of physical drives in your enclosure To view the list of available SCSI drives perform the following steps Use arrow keys to scroll down to view and edit scsi Drives and press Return Quic Slot Chl ID Size MB Speed LG_DRV Status Yendor and Product ID view view S SEAGATE S 1373409LC view 0 1 70007 160MB O ON LINE SEAGATE T373405LC view Use arrow keys to scroll the table Check to see if there are any drives installed but not listed here If there is a drive installed but not listed the drive may be defective or not installed correctly contact your RAID supplier If a hard drive was connected after the controller completes initialization select a drive from the table press Return and use the Scan scsi drive function to enable recognition of the newly added hard drive and to configure the new drive as a member of a logical drive Caution Scanning an existing drive will remove its assignment to any logical drive All data on that drive will be lost Chapter 6 Viewing and Editing SCSI Drives 7 6 5 6 6 Scanning Drives To scan a new SCSI drive installed after the controller completed initialization and to enable its use perform the following steps 1 On the Main Menu select view and edit scsi Drives
79. W DRV NONE NEW DRV A local spare drive is a standby drive assigned to serve one specified logical drive When a member drive of this specified logical drive fails the local spare drive becomes a member drive and automatically starts to rebuild Note A logical drive composed in a non redundancy RAID level NRAID or RAID 0 does not support spare drive rebuild To assign a local spare drive perform the following steps 1 Select view and edit scsi Drives 2 Highlight the drive which you want to designate as a spare and press Return 3 Select add Local spare drive 4 When the prompt Add Local Spare is displayed select Yes and assign the logical drive which will have the local spare 6 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Creating a Global Spare To create a global spare namely a spare drive which will automatically be used to replace any failed drive within the array perform the following steps Highlight the drive which you want to designate as a spare press Return and When the prompt Add Global Spare is displayed select Yes 6 0 5 34732 160MB 2 ON LINE SEAGATE 5133660 6 LINE SEAGATE 81336605 LINE SEAGATE 51336606 T DRV SEAGATE 5133666 T DRV SEAGATE ST3366 S5LSUN36G Add Global Spare Drive Select view and edit scsi Drives select add Global spare drive view view view 1 Vi
80. age A cache writing strategy in which the array controller receives the data to be written to disk stores it in the memory buffer and immediately sends the host operating environment a signal that the write operation is complete without waiting until the data is actually written to the disk drive Within a short time the controller when not busy writes the data to the disk drive Write back caching improves the performance of write operations and the throughput of the controller card However because there is a danger of data loss in the case of a power failure arrays with write back caching should be equipped with a UPS or battery backup cache A UPS will provide power long enough to allow any data in the cache memory to be written to the disk drive With battery backup cache the battery will provide power to retain the memory data for up to 48 hours A cache writing strategy used to control write operations The write policy options are write back and write through cache Glossary 7 stripe size striping terminator volume write back cache write policy write through cache A cache writing strategy in which the array controller writes the data to the disk drive before signaling the host operating environment that the process is complete Write through cache has lower write operation and throughput performance than write back cache but it is the safer strategy with minimum risk of data loss on power failure Glossary
81. ailed controller There is no need to reset or shutdown the failed controller One controller can be pulled out during active I Os to simulate the destructive controller failure Customer s design in hot swap mechanism necessary Sentinel RAID SCSI RCC Reset signals built in EonRAID Fibre channel s RCC cable necessary Supported Supported in PowerPC series Yes Cache memory is dynamically allocated not fixed Supported SAF TE S E S ISEMS C interface and on board controller voltage temp monitor are all supported in both single and redundant controller mode In the event of controller failure serves can be taken over by the existing controller Supported Battery backup solutions for cache memory are supported in both single controller and redundant modes Supported Workload can be flexibly divided between different controllers by assigning logical configurations of drives LDs LVs to different controllers Supported Channel modes configurable SCSI or Fibre as HOST or DRIVE in both single controller and redundant controller mode Firmware upgrade can be downloaded to the primary controller and then be adopted by both controllers without interrupting host I O In the event of controller failure a replacement controller running a different version of firmware can restore a redundant array with a failed controller Different firmware versions can be auto synchronized later Appendix A Firmware Specifications
82. al spare drive is used only for one specified drive the global spare drive can be used for any logical drive on the array The local spare drive always has higher priority than the global spare drive therefore if a drive fails and both types of spares are available at the same or greater size to replace the failed drive the local spare is used If there is a failed drive in the RAID 5 logical drive replace the failed drive with a new drive to keep the logical drive working To identify a failed drive refer to Identifying a Drive on page 6 13 Caution If when trying to remove a failed drive you mistakenly remove the wrong drive you will no longer be able to access the logical drive because you have incorrectly failed another drive Local Spare Drive A local spare drive is a standby drive assigned to serve one specified logical drive When a member drive of this specified logical drive fails the local spare drive becomes a member drive and automatically starts to rebuild A local spare drive always has higher priority than a global spare drive that is if a drive fails and there is a local spare and a global spare drive available the local spare drive will be used Local Spare Drive FIGURE 1 9 Local Dedicated Spare 1 4 1 4 1 1 10 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Global Spare Drive A global spare drive does not only serve one specified logical drive
83. am you can save a configuration file that can restore all configurations and rebuild all logical drives However it will also erase all data when it rebuilds all logical drives so operation is performed only when no data has been stored or all data has been transferred to another array To restore configuration settings from a saved NVRAM file perform the following steps From the Main Menu choose system Functions Select Controller maintenance and press Return Select Restore NVRAM from disks and press Return Press Yes to confirm A prompt will notify you that the controller NVRAM data has been successfully restored from disks Determining Fatal Drive Failure With the redundant RAID array system your system is protected with the RAID parity drive and by the default global spare you may have more than one Note A FATAL FAIL status occurs when there is one more drive failing than the number of spare drives available for the logical drive If a logical drive has two global spares available then three failed drives must occur for FATAL FAIL status In an extremely rare occurrence where two or more drives appear to fail at the same time perform the following steps Discontinue all input output activity immediately To cancel the beeping alarm use a paperclip to press the Reset button below the LEDs on the front right ear of the array Physically check that all the drives are firmly seat
84. ample Host LUN Mappings Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 LUN LYZLD DRY Partition Size MB RAID 6 7 E 1 LD 8 1 400 RAIDS 2 LD 8 2 400 RAIDS 3 LD 8 3 400 RAIDS 4 LD 8 4 400 RAIDS 5 LD 8 5 400 RAIDS 6 LD 8 6 400 RAIDS 7 LD 8 7 400 RAIDS LUN L LD DRV Partition Size MB RAID oD 0300 RAIDS 1 LD 1 1 300 RAIDS 2 LD 1 2 300 RAIDS 3 LD 1 3 300 RAIDS 4 LD 1 4 300 RAIDS 5 LD 1 5 300 RAIDS 6 LD 1 6 300 RAIDS 7 LD 1 7 300 RAIDS LUN LYZLD DRY Partition Size MB RAID EE 1 LD 3 1 350 RAIDS 2 LD 3 2 350 RAIDS 3 LD 3 3 350 RAIDS 4 LD 3 4 350 5 5 LD 3 5 350 6 LD 3 6 350 RAIDS 7 LD 3 7 350 RAIDS lt Main Menu gt view and edit Logical drives view and edit logical Volumes view and edit Host_luns CHL 1 ID O Primary Controll CHL 1 ID 1 Secondary Contro CHL 3 ID 2 Secondary Contro CHL 3 ID 3 Primary Controll Edit Host ID WWN Name List ee 6 gt Main Menu gt view and edit Logical drives view and edit logical Volumes view and edit 705 MS v CHL 1 ID Primary Controll CHL 1 ID 1 Secondary Control Edit Host ID WWN Name List 6 Q w 3 w D 3 2 2 lt 6 5 par m lt Hain Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit 705 MS CHL 1 ID O Primary Controll CHL_1
85. and the desired value 5 Select Cylinder Ranges and the desired value Main Menu 2 Quick installation view view Maximum Queued 0 Count 256 i LUNs per Host SCSI 8 Max Number_of eeun eni Host LUN Connection Def 4 Number of Tags Reserved for each Host LUN Connection Def 32 Peripheral Device T Parameters Sector Ranges Variable Head Ranges Variable ei eS a Control nders 3768 by Linders lt 65536 Cylinders Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 8 32 Peripheral Device Type Parameters The functions included within this section are provided for arrays without a preset logical RAID unit connected to a host Subsequently the majority of these functions do not apply to the Sun StorEdge product line Caution Modification of these settings will likely cause problems with your storage array All parameters are typically preset ll Main Menu Quick installation view and edit Logical drivi view and edit logical Volu view and edit Host luns view and edit scsi Drives view and edit Scsi channelj Maximum Queued I O Count 6 LUNs per Host SCSI ID 8 Max Number of Concurrent Host LUN Connection Def 4 Number of Tags Reserved for each Host LUN Connection Def 32 Peripheral Device Type Parameters Host Cylinder Head Sector Mapping Configuration Fibre Connection Option Loop only vf Caching Parameters v ESZRE j Drive sid
86. anding logical drives by adding more SCSI hard disk drives cannot be canceled once begun If a power failure occurs the expansion will be paused and the controller will not automatically continue the expansion when the power comes back on Restarting of the RAID expansion must be performed manually If a member drive of the logical drive fails during RAID expansion the expansion will be paused The expansion will resume automatically after logical drive rebuild has been completed After new drives are added the capacity of the original logical drive will be the same and the additional capacity is displayed as another partition new partition When expansion is completed data will be re striped across the original and the newly added drives After adding SCSI drives the additional capacity is displayed as a new partition See FIGURE 3 4 Chapter 3 Viewing and Editing Logical Drives 1 3 12 2GB 2 GB RAID 5 Logical Drive 4 GB i N partitions 1 Partitions N 1 a new partition FIGURE 3 4 Expansion by Adding Drive RAID levels supported RAID 0 3 and 5 To add a SCSI drive to a logical drive perform the following steps 1 From the Main Menu select view and edit logical drive and highlight a logical drive The drive selected for adding a SCSI drive should have a capacity no less than the original member drive If possible use drives of the same capacity because al
87. anning Considerations Here are answers to some questions that may help you plan your RAID array How many physical drives do you have Depending on the Sun StorEdge array ordered you will have 5 drives or 12 drives in your array How many drives would you like to appear to the host computer Determine what capacity will be included in a logical configuration of drives A logical configuration of drives is displayed to the host as a single physical drive For the default logical drive configuration refer to Default Logical Drives and RAID Levels on page 3 3 What kind of host application The frequency of read write activities can vary from one host application to another The application can be a SQL server Oracle server Informix or other data base server of a transaction based nature Applications like video playback and video post production editing require read writes of huge files in a sequential order The RAID level setting depends on what is the most important for a given application capacity availability or performance Before revising your RAID level prior to storing data you need to choose an optimization scheme and optimize the controller for your application The controller optimization mode can only be changed when there is no existing logical configurations Once the controller optimization mode is set the same mode will be applied to all logical drives Data stripe size is changed once the op
88. apacity Refer to the diagram below The capacity of member drives are copied and replaced one by one onto drives of larger capacity When all the member drives have been replaced execute the Expand logical drives function to make use of the unused capacity Note The new created area will be a new partition RAID levels supported RAID 0 3 and 5 New New New Drive Drive Drive 4 GB 4 GB 4 GB ao lajas Copy and Replace each member drive 2G E nuse FOO lS FIGURE 3 5 Expansion by Copy amp Replace To copy and replace drives with drives of larger capacity perform the following steps From the Main Menu select view and edit Logical drives Select a target logical drive press Return and scroll down to choose copy and replace drive Press Return to proceed Chapter 3 Viewing and Editing Logical Drives 3 25 3 13 cee eea e e View scsi drives Delete logical drive Partition logical drive logical drive Name logical drive Assignments Expand logical drive a Scsi drives reGenerate parit c py and replace drive gt gt 06 gt gt gt gt gt 50 3 The member drives belonging to the selected logical drive will be listed Select the member drive the source drive which you want to replace with a larger one Sistemi eiee ereed La DAV Status Vendor ond Product 10 STONE ETO i ee 8 PQ
89. arameters Controller Parameters The SCSI spin up decides how the SCSI drives in a disk array are started When the power supply is unable to provide sufficient current for the hard drives and controllers that are powered up at the same time spinning up the hard drives serially is one of the best ways to consume lower power up current If the drives are configured as Delay Motor Spin up or Motor Spin up in Random Sequence some of these drives may not be ready for the controller to access when the array powers up Increase the disk access delay time so that the controller will wait a longer time for the drive to be ready By default all hard drives will spin up when powered on These hard drives can be configured so that they will not all spin up at the same time when powered on Select view and edit Configuration parameters on the Main Menu Select Drive side SCSI Parameters then press Return The Drive side SCSI parameters menu is displayed Select SCSI Motor Spin Up then press Return Select Yes in the dialog box that follows to confirm the setting Chapter 8 Viewing and Editing Configuration Parameters 7 8 4 1 SCSI Reset at Power Up Do Not Change By default when the controller is powered up it will send a SCSI bus reset command to the SCSI bus When disabled it will not send a SCSI bus reset command on the next power up When connecting dual host computers to the same SCSI bus the SCSI bus r
90. arameters Disk Array Parameters Redundant Controller Parameters Controller Parameters 5 minutes Disable l 1 minute 2 minutes FIGURE 8 4 Password Validation Timeout To set Password Validation Timeout follow these steps 1 From the Main Menu select view and edit Configuration parameters then select Controller Parameters and press Return 2 Select Password Validation Timeout and then press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view 2 minutes 5 minutes Controller Logo Password Validation Timeout Always Check D Controller Unique Identifier Not Defined R Controller Parameters 3 Select a validation timeout from the list displayed and press Return Enable a validation timeout from one minute to Always Check The Always Check timeout will disable any configuration change without entering the correct password 4 A prompt will then be displayed Select Yes to confirm 8 14 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Controller Unique Identifier The Controller Unique Identifier is automatically set by the SAF TE device The Controller Unique Identifier is used to create Ethernet Addresses and World Wide Names Caution However if the array is powered off during the controller replacement or if you replaced a controll
91. as been assumed by a redundant component The capacity to cope with internal hardware problems without interrupting the array s data availability often by using backup systems brought online when a failure is detected Many arrays provide fault tolerance by using RAID architecture to give protection against loss of data when a single disk drive fails Using RAID 1 mirroring RAID 3 or 5 striping with parity or RAID 6 or 1 0 mirroring and striping techniques the array controller can reconstruct data from a failed drive and write it to a standby or replacement drive Glossary 3 active active controllers automatic rebuild background rate caching channel fabric fabric switch failover fault tolerance A logical drive that provides protection of data in the event of a single drive failure by employing RAID 1 3 5 or 6 also known as RAID 1 0 A cost effective gigabit communications link deployed across a wide range of hardware Fibre channel adapters of a host computer server or workstation An Arbitrated Loop Hub is a wiring concentrator Arbitrated means that all nodes communicating over this Fibre loop are sharing a 1001 1005 segment Whenever more devices are added to a single segment the bandwidth available to each node is further divided A loop configuration allows different devices in the loop to be configured in a token ring style With a Fibre Hub a Fibre loop can be re arranged in a star li
92. ation parameters command 8 3 4 view and edit Event logs command 10 7 view and edit Host luns command 5 7 view and edit logical drives command 3 4 3 16 view and edit logical Volumes command 4 5 view and edit scsi drives command 6 1 6 4 view peripheral device status command 9 2 voltage check status 9 8 volume definition Glossary 7 VT 100 connection and setup 2 1 6 5 9 8 WwW warnings quick installation 2 5 world wide name definition Glossary 2 write error avoiding 8 25 write policy definition Glossary 7 write back cache definition Glossary 7 disabling 4 enabling 8 4 write through disabling 4 enabling 8 4 write through cache definition Glossary 8 WWN definition Glossary 2 resetting 10 4 shutting down 10 5 muting beeper 10 2 password changing 10 3 disabling 10 4 saving NVRAM to disk 10 6 setting new password 10 3 T tag count maximum 7 18 8 21 technical support Preface xiv temperature check status 8 terminator SCSI channel 7 12 tip command 2 3 transfer clock maximum synchronous 7 16 transfer clock speed options 7 14 7 15 setting 7 13 transfer rate indicator 2 4 transfer speed setting 7 13 transfer width maximum 7 16 setting 7 14 troubleshooting support Preface xiv U uninterruptible power supply enable status 9 6 UPS enable status 9 6 fail signal 9 7 status 9 6 UPS power fail signal 9 7 UPS status 9 6 USED DRV drive
93. ble and press Return to view the available commands Note The menu will vary according to the drive status 6 1 CHAPTER 6 SCSI Drive Status Table To check and configure physical SCSI drives on the Main Menu select view and edit scsi Drives then press Return The resulting screen displays the status of all SCSI drives If there is a drive installed but not listed the drive may be defective or not installed correctly When power is on the controller scans all hard drives that are connected through the drive channels If a hard drive was connected after the controller completes initialization select any SCSI drive on the SCSI table press Return and use the Scan scsi drive function to let the controller recognize the newly added hard drive and configure it as a member of a logical drive Quic Slot chi ID Size MB Speed L6_DRV Status Vendor and Product ID view view O ON LINE SEAGATE T373405LC view O 1 8 O ON LINE SEAGATE T373405LC view I I T I I TABLE6 1 Parameters Displayed in the Drive Status Window Parameters Description Slot Slot number of the SCSI drive Chl SCSI channel of the connected drive ID SCSI ID of the drive Size MB Drive capacity in megabytes Speed xxMB Maximum synchronous transfer rate of this drive Async The drive is using asynchronous mode LG_DRV x The SCSI drive is a drive member of logical drive x If Status shows STAN
94. box Delete Primary Secondary Controller SCSI ID is displayed 7 10 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 4 Select Yes then press Return to confirm 5 On the Main Menu select system Functions then Reset controller The configuration change will take effect only after the controller is reset 7 6 Drive Channel SCSI IDs Do Not Change lt marn Menu lt Quick installati view and edit Logical drives view ID view channel Mode ID 1 view Primary controller scsi id ID 2 econdary controller scsi id il ID 3 v scsi Terminator ID 4 v sync transfer Clock efWid S Term CurSynC1k Cur ID s Wide transfer ID 6 v View and edit scsi target Wide L On Async v parity check Enabled view chip inFormation W Change Primary Controller SCSI ID T ATE No See 7 NAT 40 E 40 0Mhz Wide L On Async Nar 1D 13 ID 15 Main Menu gt Quick installation view and edit Logical drives channel Mode Primary controller scsi id ESecondary controller scsi ids scsi lerminator sync transfer Clock Wide transfer iew and edit scsi target parity check Ena view chip inFormation Change Secondary Controller SCSI ID On the Main Menu highlight a drive channel and press Return DO NOT USE the following commands that appear Primary controller scsi id Secondary controller scsi id These commands are
95. c definition Glossary 3 fault prevention 6 16 fault tolerance definition Glossary 3 fault tolerance 8 5 fault tolerant logical drive definition Glossary 4 FC AL definition Glossary 1 fibre channel definition Glossary 4 firmware cache status 2 3 controller failure rebuild replacement 8 5 controller voltage and temperature 9 8 cursor bar 2 3 gauge range 2 3 logical drive status 3 4 main menu 2 5 manual rebuild 8 6 quick installation 2 5 SCSI channel status 7 2 SCSI drive status 2 transfer rate indicator 2 3 VT 100 screen selection 3 flash all but selected drive command 6 14 Flash All Drives command 6 13 flash drive time command 6 13 flash selected drive command 6 14 flashing all SCSI drives 6 15 deleting 6 expanding 3 28 explained 1 2 ID 3 4 LG number 3 4 maximum physical capacity 3 9 maximum physical drive capacity 3 9 minimum requirements 1 16 parity checking 3 20 partitions maximum 1 16 RAID level 3 4 RAID level selected 3 8 RAID levels default 3 3 rebuilding 3 19 size 3 4 status 3 4 logical drive Assignments command 3 12 logical drive name command 3 18 logical drive preferences 3 9 logical drives 8 24 logical volume 4 2 4 avoiding failure 3 creating 5 example multi level 4 2 expanding 4 7 using RAID expansion 4 explained 1 2 4 2 limitations 4 3 maximum partitions 1 2 4 2 multi level RAID 4 partitioning 4 3 spare drives 4
96. controller will not attempt to rebuild until the user applies another forced manual rebuild 8 2 2 8 2 3 8 6 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Anylocal spare Rebuild using drive assigned the local spare to logical drive drive One member drive fails ina logical drive Any global spare Rebuild using drie assigned to the global spare logical drive drive Periodic Auto Detect Failure Drive Swap Check Time enabled Waiting for sp are drive to be add ed or manual re build Has the failed drive been swapped Rebuild using the swapped drive Keep detecting if drive has been swapped or spare drive has been added FIGURE 8 1 Automatic Rebuild Chapter 8 Viewing and Editing Configuration Parameters 7 Any local spare Rebuild using drive as signed to the local spare this logical drive drive Rebuild using the global spare drive Any global spare drive as signed to this logical drive Has the failed drive been re placed Exit User applies forced manual rebuild FIGURE 8 2 Manual Rebuild 8 8 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Concurrent Rebuild in RAID 0 1 RAID 0 1 allows multiple drive failure and concurrent multiple drive rebuild Drives newly swapped must be scanned and set as local spares These drives will be rebuilt at the same tim
97. critical event occurs Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 TABLE A 6 Feature Regenerate Parity of logical drives Bad block auto reassignment Battery backup for cache memory Verification on Normal Writes Verification on Rebuild Writes Verification on LD initialization writes Drive S M A R T support Clone Failing Drive TABLE A 7 RS 232C Terminal Buzzer alarm Parameter Summary Tables This appendix explains how to fine tune your array by making minor configuration changes to parameters It also lists parameter defaults that should not be changed Topics covered include Optimizing Controller Parameters on page B 1 Keeping Specific Parameter Defaults on page B 3 APPENDIX B Optimizing Controller Parameters Although the factory defaults provide optimized controller operation you may want to fine tune your array through minor modifications to the parameters listed below Some parameters can only be changed at the initial array configuration other parameters may be changed at any time Please note the listing of parameters whose defaults should not be changed unless directed by Technical Support B 1 B 1 TABLE 8 1 Controller Parameter Settings Default Alternate Settings Replace After Clone Perpetual Clone Low Normal Improved High On LD Initialization On LD Rebuild On Normal Drive Writes Over Dial out Modem Over SNMP Trap
98. devices LVD signaling uses two wires to drive one signal over copper wire and requires a cable that is no longer than 25 meters 82 ft Megabyte 1 000 000 bytes or characters of data Non Volatile Random Access Memory A memory unit equipped with a battery so that the data stays intact even after the main power had been switched off Primary controller identifier number Redundant Array of Independent Disks A configuration in which multiple drives are combined into a single virtual drive to improve performance and reliability Storage Area Networking A high speed open standard scalable network of storage devices and servers providing accelerated data access Small Computer Systems Interface An industry standard for connecting disk and tape devices to a workstation SCSI Enclosure Services driver An interface to SCSI Enclosure Services devices These devices sense and monitor the physical conditions within an enclosure as well as enable access to the status reporting and configuration features of the enclosure such as indicator LEDs on the enclosure Primary controller identifier number Self Monitoring Analysis and Reporting Technology The industry standard reliability prediction indicator for both the IDE ATA and SCSI hard disk drives Hard disk drives with SMART offer early warning of some hard disk failures so critical data can be protected Simple Mail Transfer Protocol A protocol for sending e mail messages between
99. drive fSvoeser wafratox 5508 00 2 6 o o vrsasaa walratoa 5508 60005 2 2 s4s6aisi walraroi aseo 6005 ze7cirba walratoi 3500 eoop s 34476MB Dis eser Pace 6 Logical Drive Assignments ator asao 2E7C1FD4 S1ot Chi 10 Size HB Speed GORY Status Vendor and Product 10 are AE Dev Senate ON 5 _24722 1606 none NEW ORV SEAGATE STSS66051 SUNGEG Note A logical drive created in a RAID level which has no data redundancy NRAID or RAID 0 does not support spare drive rebuilding 6 Optionally select Logical Drive Assignments to assign this logical drive to the secondary controller By default all logical drives are automatically assigned to the primary controller Redundant Controller Logical Drive Assign to Secondary Controller No If you use two controllers for the redundant configuration a logical drive can be assigned to either of the controllers to balance workload Logical drive assignment can be changed any time later a Press Esc key or No to exit from this window without changing the controller assignment 3 10 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 b Select Yes press Return to confirm and then press Esc key to continue when all the preferences have been set A confirmation box is displayed on the screen c Verify all information in the box before choosing Yes to proceed Raid Level RAID S On
100. e definition Glossary 7 striping 1 5 definition Glossary 7 with interspersed parity 1 9 with mirroring 7 with parity disk 1 8 sync transfer clock 7 13 system functions 10 2 controller Index 7 deleting 7 10 explained 8 27 motor spin up 8 17 reset at power up 8 18 target drive channel viewing and editing 7 15 transfer clock speed setting 7 13 SCSI channel commands 7 4 SCSI channel defined 8 27 SCSI drive adding to logical drive 3 21 disk capacity 6 6 fibre port name 6 6 global or local spare 6 2 identifying a drive diagnosing system errors 6 13 low level format 6 21 read write test 2 redundant loop ID 6 6 revision number 6 scanning new 6 8 serial number 6 6 slot number deleting 6 11 STANDBY mode 6 2 table adding entries 6 11 clear drive status 6 11 deleting drive entries 6 11 removing empty drive entry 6 12 setting slot numbers 6 10 USED DRV mode 2 utilities 6 21 vendor ID 6 3 viewing information 6 6 scsi Drive Low Level Format command 6 22 SCSI host IDs creating 7 9 SCSI ID defined 8 27 SCSI Motor Spin Up command 8 17 SCSI Reset at Power Up command 8 18 SCSI target drive channel maximum tag count 7 18 parity check 7 17 slot number 7 16 scsi Terminator command 7 12 SDRAM ECC 8 15 default 5 sector V Verification on LD Initialization Writes Disabled command 8 26 verification on writes 8 25 view connected drives 3 7 6 7 view and edit Configur
101. e f Identifying s drive clone Failing drive scsi drive Utilities FIGURE 6 6 Flash Selected Drive Function 6 10 1 Flashing Selected SCSI Drive The read write LED of the drive you select lights steadily for a configurable period of time from 1 to 999 seconds LED steadily on 39k o o o 2 E o E o t Jo to k O aa L l i ae 0 FIGURE 6 7 Flashing the Drive LED of a Selected Drive 6 14 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 6 10 2 Flashing All SCSI Drives The Flash All SCSI Drives function lights LEDs of all good drives except the defective one E R Dis Disk 7 Disk 10 l O Leg a Lie a 2 l o 1 Disk 2 6 1 Disk 8 F Disk 11 L Dis IP Disko If Disk 12 I OJ je eA O ty O L IHO FIGURE 6 8 Flashing All Drive LEDs to Detect a Defective Non Flashing Drive 6 10 3 Flashing All But Selected Drives With this command except for the selected drive the read write LEDs of all connected drives will light for a configurable period of time from 1 to 999 seconds o LED WE RE WE BRE WE m Dp w ale 1 do AE 6 2 gt 1 FIGURE 6 9 Flashing All Drive LEDs Except a Selected
102. e you do not need to repeat the rebuilding process for each drive Identifying a Failed Drive for Replacement If there is a failed drive in the RAID 5 logical drive replace the failed drive with a new drive to keep the logical drive working To identify a failed drive refer to Identifying a Drive on page 6 13 Caution If when trying to remove a failed drive you mistakenly remove the wrong drive you will no longer be able to access the logical drive because you have incorrectly failed another drive Restoring Your Configuration NVRAM From a File If you have saved a configuration file and want to apply the same configuration to another array or reapply it to the array that had the configuration originally you must be certain that the channels and SCSI IDs in the configuration file are correct for the array where you are restoring the configuration The NVRAM configuration file will restore all configuration settings channel settings host IDs etc but does not rebuild logical drives To save a configuration file refer to Saving Configuration NVRAM to Disk on page 10 6 Caution If the channels or SCIS IDs are not a correct match for the array you will lose access to the mismatched channels or drives when you restore the configuration with the configuration file Chapter 8 Viewing and Editing Configuration Parameters 9 8 2 4 8 2 5 8 2 6 Note In the Configuration Service progr
103. e 3 28 Viewing and Editing Logical Volumes 4 1 Understanding Logical Volumes Multi Level RAID 4 2 Creating a Logical Volume 4 5 Expanding a Logical Volume 4 7 Viewing a Logical Volume Status Table 4 8 4 1 4 2 4 3 4 4 Viewing and Editing Host LUNs 5 1 Planning for 128 LUNs 5 1 Mapping Logical Drive Partitions to Host LUNs 5 3 5 2 1 Example Host LUN Mappings 5 6 Deleting a Host LUN Mapping 5 7 5 1 2 5 3 Viewing and Editing SCSI Drives 6 1 SCSI Drive Status Table 6 2 Assigning a Local Spare Drive 4 Creating a Global Spare 6 5 Viewing Drive Information 6 6 Viewing the Connected Drives 6 7 Scanning Drives 6 8 Deleting a Spare Drive 6 9 Setting Slot Numbers 6 10 6 8 1 Assigning a Slot Number to an Empty Slot 0 6 8 2 Deleting a Slot Number 6 11 Adding or Deleting Drive Entries 6 11 6 9 1 Removing an Empty Drive Entry 6 12 Identifying a Drive 6 13 6 10 1 Flashing Selected SCSI Drive 6 14 Contents 6 1 6 2 6 3 6 4 6 5 6 6 6 7 6 8 6 9 6 10 2 Flashing All SCSI Drives 6 15 6 10 3 Flashing All But Selected Drives 6 15 6 11 Cloning Failing Drive 6 16 6 11 1 Replacing After Clone 6 16 6 11 2 Perpetual Clone 6 18 6 12 SCSI Drive Utilities Do Not Use 6 21 7 Viewing and Editing SCSI Channels 7 1 7 1 SCSI Channel Status Table 7 2 7 1 1 SCSI Drive Channel Commands 7 4 7 1 2 SCSI Host Channel Commands 7 5 7 2 Configuring SCSI Channels as Host or Drive 7 5 7 3 Permanent SCSI Drive Channel IDs
104. e Main Menu to let the controller recognize the newly added hard drive and to make it available to be configured as a member of a logical drive Optionally define any additional partitions for each logical drive Refer to Partitioning a Logical Drive on page 3 13 A logical drive can be divided into a maximum of 32 Partitions A total of 128 partitions can be created in an array Optionally add host SCSI IDs and more logical drives to create 128 LUNs Refer to Planning for 128 LUNs on page 5 1 a Creating Additional Host IDs on page 7 9 Creating Logical Drive s on page 3 5 Map each logical drive and storage partition to a host ID LUN Refer to Mapping Logical Drive Partitions to Host LUNs on page 5 3 The host adapter will recognize the system drives after re initializing the host bus Optionally optimize controller s parameters for your applications For details on optimization modes refer to Optimization Modes Caching Parameters on page 8 2 The last step is to save your configuration profile as a file or to the logical drive you created 1 Note The controller is totally independent from host operating environment The host operating environment will not be able to tell whether the attached storage is a physical hard drive or the logical drives created by the RAID controller Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 1 8 1 16 Accessing the
105. e SCSI Parameters f Disk Array Parameters Redundant Controller Parameters Controller Parameters FIGURE 8 6 Peripheral Device Type Parameters Peripheral Device Qualifier The default setting for this parameter is Connected Device Supports Removable Media The default setting for this parameter is Disabled LUN Applicability The default setting is All Undefined LUNs Related to the other LUN functions LUN Applicability is primarily used when no logical drive has been created and mapped to a host LUN and the RAID controller is the only device connecting to the host SCSI card For such instances the operating environment will typically not load the driver of the host SCSI adapter If the driver is not loaded the in band SCSI utility cannot communicate to the RAID controller If LUN O s only is selected only LUN O of the host ID is displayed as a device with the user defined peripheral device type If All Undefined LUNs is selected each LUN in that host ID is displayed as a device with the user defined peripheral device type Chapter 8 Viewing and Editing Configuration Parameters 3 8 7 Setting an IP Address The controller Ethernet port offers out of band management through two programs The Configuration Service program Refer to the Sun StorEdge 3310 SCSI Configuration Service User Guide for details The firmware program when you Telnet to the controller
106. e logical drive Proceed with the following procedures a Replace the failed drive with a new disk drive refer 0 the Sun StorEdge 3310 SCSI Array Installation Operation and Service Manual Guide a Deleting a Logical Drive on page 3 16 a Creating Logical Drive s on page 3 5 For additional troubleshooting tips refer to the Sun StorEdge 3310 SCSI Array Release Notes located at www sun com products n solutions hardware docs Network_Storage_Solutions Workgroup 0 Chapter 8 Viewing and Editing Configuration Parameters 8 11 8 3 Controller Parameters 8 3 1 Controller Name The Controller Name only is displayed in the firmware program and is used to identify different controllers Note The controller s name and password jointly share a 16 character alphanumeric field If you set up a password check that both the controller name and any password can fit within the 16 character field m gt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels edit 1 cla Dei 1 Communication Parameters Caching Parameters Host side SCSI Parameters LCD Title Display Cont Password Validation Timeout Always Check Drive side SCSI Parameters Controller Unique Identifier Not Defined Disk Array Parameters SDRAM Eco Digabied Redundant Controller Parameters New C
107. e member logical drives of a logical volume the controller will start to rebuild that logical drive If any of the member logical drives fails fatally the logical volume fails fatally and data will not be accessible To avoid a logical volume failure Logical drives as members to a logical volume should be configured in RAID levels that provide redundancy namely RAID level 1 0 1 3 or 5 a Rebuild the logical drive as soon as possible whenever a drive failure occurs A logical drive should be composed of physical drives from different drive channels Compose the logical drive with drives from different drive channels to avoid the fatal loss of data caused by bus failure Partitioning the logical drive or partitioning the logical volume Once a logical drive has been divided into partitions the logical drive can no longer be used as a member of a logical volume The member logical drives of a logical volume should have one partition only with the entire capacity If you want to use a partitioned logical drive for a logical volume delete the other partitions in this logical drive until there remains one partition only with the entire logical drive capacity Caution Deleting the partition of the logical drive will also destroy all the data Data should be backed up to somewhere else before making partition configuration When a logical drive is used as a member to a logical volume this logical drive can no longer b
108. e partitioned in View and Edit Logical Drives Instead the Logical Volume can be partitioned in View and Edit Logical Volume The procedure for partitioning a logical volume is the same as that for partitioning a logical drive After the logical volume has been partitioned map each partition to a host ID LUN to allow the host computer to utilize the partitions as individual drives Chapter 4 Viewing and Editing Logical Volumes 3 RAID expansion with logical volume The Logical Volume can also be expanded using the RAID expansion function The concept of expanding a logical volume is similar to that of expanding a logical drive To perform RAID expansion on a logical drive replace each member physical drive with a drive of larger capacity or add a new drive then perform logical drive expansion to utilize the newly added capacity To perform RAID expansion on a logical volume expand each member logical drive then perform RAID expansion on the logical volume m Is there anything changed after using logical volume Without a logical volume Logical drives can be assigned to the primary controller or to the secondary controller The host I Os directed to a logical drive will be served by the controller to which this logical drive is assigned If a controller fails the host I Os originally assigned to the failed controller will be taken over by the existing controller When the controller fails back failed controller b
109. e performed then press Return 2 Select scsi drive Utilities then press Return Select Read Write Test and press Return 3 Enable or disable the following options and press Return after each change m Auto Reassign Bad Block m Abort When Error Occurs Drive Test for Read Only Read and Write 4 When configuration is complete select Execute Drive Testing and press Return to proceed Qyic Stet onl T0 Size W6 Speed GORY Status Vendor and Proauct 10 view visul a 2 of 999 of on tine ren Ef 2 2l 19959 ams o on Line Te _oRS aas600 ae oe ao ee eee DDRS 34568D Occurrence 5 or Drive Test for Read Only Execute Drive Testing rs L ol aes of ov cine ron oons ovscco The Read Write test progress will be indicated by a status bar 6 22 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 You may press ESC and select Read Write Test later and choose to View Read Write Testing Progress or to List Current Bad Block Table If you want to stop testing the drive select Abort Drive Testing and press Return to proceed Quic Slot Chl1 ID Size MB Speed LG_DRV Status Vendor and Product ID visu a 2 o 9999 aone oe 5 id ON LINE IBM DDRS 3456 D Scan scsi drive eae ist Current 8 oc 5 Abort Drive testina Read Write Test 1 ON LINE IBM DDRS 34560D 1 L 1 Address Stat Address Stat Address
110. e the file in the etc directory Use the replacement term ss3000 with the tip command Using the tip Command for Local Access to the Array You can access the RAID COM port DB9 connector on the controller module locally with the following commands Connect the RAID array COM port to the serial port of a Solaris workstation see FIGURE 2 1 tip ss3000 dev ttyb entrl 1l to refresh the screen Chapter 2 Accessing the Controller Firmware 3 The Controller Firmware Initial Screens You will see the following initial controller screen when you first access the RAID controller firmware via the controller COM port of Ethernet port To complete the connection to your management console select the VT100 terminal mode or the appropriate mode for your communications software and press Return Cache Status Controller Name Cache Status Clean ermina 1 ode PC Graphic ANSI Color Mode Show Transfer Rate Show Cache Status Cursor Bar gt Keys to Use Move the cursor bar to a desired item then press Return to select Identifies the type of controller Indicates the current data transfer rate Use or keys to change the gauge range in order to view the transfer rate indicator Indicates the current cache status Enters the Main Menu and operates in ANSI mode Enters the Main Menu and operates in VT 100 mode Enters the Main Menu and operates in ANSI color mode Press Re
111. ead operation for sequential data accessing Yes Supported Supported Optimized I O sorting for enhanced performance RAIDS Optimization for Random I O 32k optimization for Sequential I O 128k user selectable RAIDS Optimization for Random I O 4k optimization for Sequential I O 16k user selectable Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 TABLE A 1 Co existing Dedicated and Global Spare Drives Auto rebuild onto spare drive Auto scan of replacement drive upon manually initiated rebuild Auto rebuild onto failed drive replacement Background firmware download Auto recovery from logical drive failure TABLE A 2 Feature Write back Cache Write through Cache Supported Memory type Read ahead Operation Multi Threaded Operation Scatter Gather I O sorting Variable Stripe Size Description Supported Supported Force the drive to light on the activity indicator for user to recognize the correct drive Supported Drive vendor name model number firmware revision capacity blocks serial number narrow wide and current sync speed Supported Supported The logical drive information is recorded on drive media Supported Save all the settings stored in the controller NVRAM to the logical drive members Supported Save all the settings stored in the controller NVRAM to a file via GUI or TextRAID manager on user s computer Capacity lt 64
112. ed 15 none to 75 seconds Appendix B Parameter Summary Tables User Defined Parameter Fault Management S M A R T SDRAM ECC SCSI Parameters Data Transfer Rate Wide Transfer Parity Check Spin Up Parameters Motor Spin Up Reset at Power UP Initial Disk Access Delay B 2 8 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 APPENDIX 6 Event Messages This appendix lists the following event messages Controller Events on page C 2 SCSI Drive Events on page C 3 Logical Drive Events on page C 5 General Target Alerts on page C 6 Events are categorized as follows Category Description Response Alert Errors that need to attend to immediately may require reconnecting cables replacing a component or rebuilding a drive Errors which may indicate a temporary condition a possible component Warning problem or the need to adjust controller parameters Press ESC key to clear message Notification Informational message sent from controller firmware press ESC key to clear message C 1 Controller Events The controller records all array events during power on it records up to 1 000 events Caution To power off or to reset the controller will cause an automatic deletion of all the recorded event logs Alerts 0104 Controller ALERT DRAM Parity Error Detected 0105 Controller lt primary secondary gt SDRAM ECC lt multi bits single bit gt Error De
113. ed in the array and that none have been partially or completely removed Check again the firmware Main Menu and check the view and edit Logical drives and look for Status FAILED DRV one failed drive or Status FATAL FAIL two or more failed drives 8 27 8 10 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 5 Highlight the logical drive press Return and select view scsi drives If two physical drives have a problem one drive will have a BAD status and one drive will have a MISSING The MISSING status is a reminder that one of the drives may be a false failure The status does not tell you which drive might be a false failure 6 Do one of the following m Choose system Functions from the Main Menu and press Return Select Reset controller and press Return or Power off the array Wait five seconds and power on the array 7 Repeat steps 4 and 5 to check the logical and SCSI drive status After resetting the controller if there is a false bad drive the array will automatically start rebuilding the failed RAID set If the array does not automatically start rebuilding the RAID set check the status under view and edit Logical drives m If the status is FAILED DRV manually rebuild the RAID set refer to Manual Rebuild on page 8 6 If the status is still FATAL FAIL you have lost all data on the logical drive and must re create th
114. edit scsi Drives view and edit Scsi channels view and edit Configuration parameters and edit Peripheral de vi View Peripheral Device Status vi Set Peripheral Device Entry Define Peripheral Device Active Signal Adjust LCD Contrast Controller Peripheral Device Configuration FIGURE 9 1 View and Edit Peripheral Devices Menu CHAPTER 9 9 1 Viewing Peripheral Device Controller Status To view the status of each controller perform the following steps 1 Select view and edit Peripheral devices on the Main Menu 2 Select the View Peripheral Device Status option A table will display the status m gt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit Peripheral devices 5 View Peripheral Device Status v v 5 D ITEM STATUS LOCATION al Redundant Controller Enabled Primary SAF TE Device Operational Channel 0 ID 14 FIGURE 9 2 View Peripheral Device Status 9 2 Viewing Peripheral Device SAF TE Status To check the status of SAF TE components temperature sensors cooling fans the beeper speaker power supplies and slot status perform the following steps The SAF TE controller is located on the SCSI I O module 1 From the Main Menu select view and edit Peripheral device
115. effect 3 12 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 3 6 Partitioning a Logical Drive You can divide a logical drive into several partitions or use the entire logical drive as a single partition You might configure up to 32 partitions for each logical drive For guidelines on setting up 128 LUNs refer to Mapping Logical Drive Partitions to Host LUNs on page 5 3 Caution If you modify the size of a partition or logical drive you lose all data on those drives a PartitionO0 2GB Partition 1GB ee ee RAID 5 8GB Logical Drive 0 Partition 2 8 gt ee 4 Partition 0 RAID 3 648 i ee Partition 1 5 Logical Drive 1 Partition2 2GB FIGURE 3 2 Partitions in Logical Configurations Chapter 3 Viewing and Editing Logical Drives 3 13 To partition a logical drive perform the following steps 1 From the Main Menu select view and edit Logical drives 2 Select the logical drive you want to partition then press Return eee a B61LESAB NA RAIDS 3000 GOOD S SEE 2 NONE ecececHo View scsi drives Delete logical drive Partition logical drive logical drive Name logical drive Assignments Expand logical drive add Scsi drives reGenerate parity cOpy and replace drive 4 Select from the list of undefined partitions and press
116. eing replaced by a new one logical drives will be returned to the replacement controller in the original configuration With a logical volume Logical volumes can also be assigned to different controllers The only difference is that the logical volumes will be considered as the base units for shifting the control during a controller failure A logical volume with logical drives of different levels Multi level RAID arrays A multi level RAID with logical volume support offers the following available applications RAID 0 1 This is a standard feature of RAID controllers It has the benefits of RAID 1 high availability and RAID 0 enhanced I O performance through striping Simply choose multiple drives for a RAID 1 logical drive the RAID controller will implement RAID 0 1 automatically RAID 3 0 A logical volume itself is a multi level RAID implementation A logical volume is composed of one or several logical drives with data striping RAID 0 A logical volume with several RAID 3 member logical drives can be considered as a RAID 3 0 or RAID 53 as defined in The RAID Book from The RAID Advisory Board RAID 5 0 A logical volume with several RAID 5 member logical drives RAID 5 1 Requires multiple RAID controllers In a RAID 5 1 array each layer 1 RAID controller handles one RAID 5 logical drive and a layer 2 RAID controller performs RAID 1 mirroring function to the virtual disks controlled
117. er Restricted Use 10 5 10 2 Restoring Configuration NVRAM froma File 10 5 10 3 Saving Configuration NVRAM to Disk 6 viii Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 10 4 Viewing Event Logs Screen 27 Firmware Specifications 1 Parameter Summary Tables 1 B 1 Optimizing Controller Parameters 1 B 2 Keeping Specific Parameter Defaults 3 Event Messages 1 C 1 Controller Events C 2 Alerts 2 Warnings C 2 Notifications C 3 C 2 SCSI Drive Events 14 Warnings C 4 Notifications C 5 C 3 SCSI Channel Events C 6 Alerts 46 Notifications 46 C 4 Logical Drive Events C 7 Alerts C 7 Notifications C 8 C 5 General Target Alerts C 9 SAF TE Device C 9 Controller on board C 10 PC Device C 11 SES Devices 2 General Peripheral Device 4 Glossary Glossary 1 Contents ix Acronyms Glossary 1 Terminology Glossary 3 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Preface The Sun StorEdge 3310 SCSI RAID Firmware Guide gives an overview of RAID terminology emphasizes the use of controller firmware and VT100 commands to configure and monitor the Sun StorEdge units The guide also describes the available Command Line Interface CLI commands which can also be used for performing administrative tasks on the arrays This manual is written for Sun support and Sun trained personnel who are already familiar with Sun s hardware and software products Caution You should read the Sun
118. er specify the value 0 then remove the drive entry by performing the following steps On the Main Menu select view and edit scsi Drives and press Return Select the desired SCSI drive and press Return Select set slot Number select 0 and press Return Now select Clear drive status and press Return The empty drive entry will now disappear from the drive information list Then delete the empty drive entry refer to Adding or Deleting Drive Entries on page 6 11 Note You will not be able to remove an empty drive entry if it has been assigned a slot number Delete the slot number before removing the empty drive entry 6 9 1 6 12 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Identifying a Drive If there is a failed drive in the RAID 5 logical drive replace the failed drive with a new drive to keep the logical drive working To identify a failed drive refer to Identifying a Drive on page 6 13 Caution If when trying to remove a failed drive you mistakenly remove the wrong drive you will no longer be able to access the logical drive because you have incorrectly failed another drive To diagnose a failed drive identify a single drive or test all drive activity LEDs perform the following steps Note The following procedure only works if there is no I O activity On the Main Menu select view and edit scsi Drives and press Return
119. er 3 Viewing and Editing Logical Drives 7 2 Create a logical drive a Scroll through the Main Menu and select view and edit logical drive Status opan ese NAME gt gt gt gt gt 66 gt gt 66 2 5 5 b Select the first available unassigned logical drive LG and press Return to proceed You can create as many as eight logical drives from drives on any SCSI bus When prompted to Create Logical Drive select Yes and press Return to proceed A pull down list of supported RAID levels is displayed 3 Select a RAID level for this logical drive RAID 5 is used in the following example screens For brief descriptions of RAID levels refer to Default Logical Drives and RAID Levels on page 3 3 For more information about RAID levels refer to Chapter 1 in the Sun StorEdge 3310 SCSI RAID Firmware User Guide 4 Select your member drive s from the list of available physical drives The drives can be tagged for inclusion by positioning the cursor bar on the drive and then pressing Return An asterisk mark is displayed on the selected physical drive s URI To deselect the drive press Return again on the selected drive The mark will disappear Note You must select at least the minimum number of drives required per RAID level Each RAID level requires an even number of drives 3 8 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002
120. er in a single controller configuration you must set the Controller Unique Identifier to the correct value or the array could become inaccessible To set the Controller Unique Identifier parameter to the correct value perform the following steps On the firmware main menu select view and edit configuration parameters then select Controller Parameters and press Return From the Controller Parameters menu select Controller Unique Identifier lt hex gt and press Return Type in the value 0 to automatically read the chassis serial number from the midplane or type the hex value for the original serial number of the chassis used when the midplane has been replaced The value 0 is immediately replaced with the hex value of the chassis serial number A non zero value should only be specified if the chassis has been replaced but the original chassis serial number must be retained this feature is especially important in a Sun Cluster environment to maintain the same disk device names in a cluster To implement the revised parameter value select system Functions on the Main Menu select Reset Controller and press Return SDRAM ECC Function Do Not Change The default setting is always set to Enabled Chapter 8 Viewing and Editing Configuration Parameters 5 8 3 4 8 3 5 Drive side SCSI Parameters The configurable drive side SCSI parameters are SCSI Motor Spin Up Do
121. errupted by a reset use the Rebuild command on the Array Administration menu to restart the rebuilding process The background rate is the percentage of available array controller CPU time assigned to array administration activities such as rebuilding failed drives checking parity and initialization If the background rate is set to 100 the array administration activities have a higher priority than any other array activity At 0 the array administration activity is done only if there is no other activity on the array controller Allows data to be stored in a pre designated area of a disk or RAM random access memory Caching is used to speed up the operation of RAID arrays disk drives computers and servers or other peripheral devices Any path used for the transfer of data and control information between storage devices and a storage controller or I O adapter Also refers to one SCSI bus on a disk array controller Each disk array controller provides at least one channel Fibre Channel network built around one or more switches A fabric switch functions as a routing engine which actively directs data transfer from source to destination and arbitrates every connection Bandwidth per node via a Fabric switch remains constant when more nodes are added and a node on a switch port uses an up to 100MBps data path to send or receive data A mode of operation for failure tolerant arrays in which a component has failed and its function h
122. eset will interrupt all the read write requests being performed This may cause some operating environments or host computers to act abnormally Disable the SCSI Reset at Power up to avoid this situation SCST OM Enable SCSI Reset at Power Up Yes No conds Time 5S seconds Periodic Auto Detect Failure Drive Swap Check Time Disabled Drive Predictable Failure Mode SMART Detect Only Fibre Channel Dual Loop Enabled D 9 M P Drive side Parameters Dis Array Parameters Redundant Controller Parameters Controller Parameters Select view and edit Configuration parameters on the Main Menu Select Drive side SCSI Parameters then press Return The Drive side SCSI parameters menu is displayed Select SCSI Reset at Power Up then press Return Select Yes in the dialog box that follows to confirm the setting Power off all hard drives and controller and power them on again All the hard drives will not spin up at this time The controller will then spin up the hard drives one by one at a four second interval 8 4 2 8 18 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Disk Access Delay Time This function sets the delay time before the controller tries to access the hard drives after power on The default is 15 seconds The range is No Delay to 75 seconds SCSI Motor Spin Up Disabled SCSI Reset at Power Up Disabled is No Delay 2 seconds
123. evels Data written to a logical volume is first broken into smaller data segments and striped across different logical drives in a logical volume Each logical drive then distributes data segments to its member drives according to its mirroring parity or striping scheme Caution The logical volume feature is not supported in the Configuration Service program It is available but rarely used It has been replaced by the use of partitions in logical drives A logical volume can be divided into a maximum of eight partitions The preferred function is the creation of partitions into logical drives You may configure up to 32 partitions for each logical drive and up to 128 partitions total within an array During normal operation the host sees a non partitioned logical volume or a partition of a partitioned logical volume as one single physical drive 4 2 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Note Logical drives with many more partitions serve the same purpose m Spare drives in a logical volume A local spare cannot be assigned to a logical volume If a drive fails it fails as a member of a logical drive therefore the controller allows local spare assignment to logical drives rather than logical volumes Logical volume limitations The logical volume cannot have any logical drive with a status of fatal failed If there is a failed drive in any of th
124. ew drive information view add Local spare drive view ada obal spare drive view syst view s a view I Yes No s d isk Reserved space unformatted T DRY SEAGATE ST3366 SLSUNZ6G 22 2 6 NON 0 0 scmunch Chapter 6 Viewing and Editing SCSI Drives 6 5 6 3 Viewing Drive Information To view the SCSI drive information such as the revision number serial number and disk capacity of an individual drive perform the following steps gt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns eu information add Local spare drive add Global spare deive 3 O ON LINE HITACHI DK31CJ 72FC Delete global local spare drive Scan scsi drive i set slot Number Revision Number add drive Entry Serial Number ID009863 Clear drive status Disk Capacity lt blocks gt 0144410879 Identifying scsi drive Fibre Port Name 2 3 clone Failing drive Redundant Loop ID 16 scsi drive Utilities FIGURE 6 1 View Drive Information 1 On the Main Menu select view and edit scsi Drives and press Return 2 Highlight the SCSI drive you want to view and then press Return 3 Select the view drive information command The revision number serial number and disk capacity counts in block one block refers to 512K of the drive will be displayed on the screen 6 4 6 6 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002
125. f 80 MHz Wide v ai Host i 0 11 80 0 Hz Wide ILI Off 20 0MHz 2 Drive 6 7 80 0 Hz Wide Off Async Narrow 3 Host 3 2 80 0MHz Wide L Off 80 0MHz Wide 6 C RCCOM NA NA AUTO Serial F NA 1 GHz Serial 2 Configuring SCSI Channels as Host or Drive All Sun StorEdge RAID arrays are preconfigured when they arrive from the factory Default channel settings and rules are specified as follows Channel 0 CH 0 MUST be a drive channel Channels 1 2 and 3 CH 1 CH 2 CH 3 may be drive or host channels Default channel settings are CH 0 and CH 2 Drive channels CH 1 and CH 3 Host channels The most common reason to change a host channel to a drive channel is when you attach an Expansion Unit to a RAID array and only need one host channel Chapter 7 Viewing and Editing SCSI Channels 5 72 To change the use of a SCSI channel reconfigure the channel according to the following procedure 1 Select view and edit Scsi channels from the Main Menu lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels y Chl Mode PID SID DefSynC1k DefWid Term CurSyn 1k CurWid 80 MHz 80 MHz L 80 MHz 1 L 80 MHz L 80 OMHz L 80 OMHz The communication
126. f 32 To change the default setting perform the following steps Select view and edit Configuration parameters on the Main Menu Select Drive side SCSI Parameters then press Return The Drive side SCSI parameters menu is displayed Select Maximum Tag Count then press Return A list of available tag count numbers is displayed Select a number then press Return Select Yes in the dialog box that follows to confirm the setting For the changes to take effect select system Functions select Reset Controller and press Return Chapter 8 Viewing and Editing Configuration Parameters 8 21 8 4 5 8 4 6 SAF TE and 5 5 5 Enclosure Monitoring SCSI Motor Spin Up Disabled SCSI Reset at Power Up Disabled Disk Access Delay Time 66 5 D bled SCSI I 0_Timeout 10 seconds ms Maximum Tag Count 3 100 ms Periodic Drive Check Time 10 seconds 200 ms Devi 2 ms second od Dr Brive Mode SMART Detect Only seconds Fibre Channel Dual Loop Enabled S seconds seconds Drive side Parameters seconds Disk Array Parameters seconds Redundant Controller Parameters seconds Controller Parameters If there are remote devices within your RAID enclosure monitored via SAF TE S E S use this function to decide at what interval the controller will check the status of these devices Select Periodic SAF TE and SES Device Check Time and press Return Move the cursor to the
127. fer maximum xfer Width Enabled Def 32 Parity check Disconnect support Enabled Def 32 Restore 0 setting Tel tel irae enabieal oere elel 0 wide Enabled Enabled Def 32 Note It is only recommended to alter the SCSI target settings when adjustments should be made to specific devices on a drive channel You may change the SCSI parameters for specific drives when mixing different drives or connecting other SCSI device like a CD ROM on a drive channel Note that neither mixing drives nor connecting CD ROM is recommended for the controller Chapter 7 Viewing and Editing SCSI Channels 5 7 10 7 10 1 Slot Number Select Slot number then press Return Enter a slot number then press Enter again 7 10 2 Maximum Synchronous Transfer Clock Quicl Slot Ch1 SyncClk pert Wid Parit yChk Disconnect TagCount view Enabled En able Enabled Be TOA view i Slot b Enabl Enabled Def 22 f 32 ot number na 6 5 maximum sync or Maximum Sync Xfer Clock os row v v s Synchronous Transfer Period Fact v v eral area fel o Wide enabled Enabled Def 2 Select maximum sync xfer Clock then press Return A dialog box is displayed on the screen Enter the clock then press Return 7 10 3 Maximum Transfer Width Qyse Stet emr 10 Sractlk X rHid Parityohk Disconnect Tastount sisal al afol of mae Enabled _tnabled verc Narrow Fnab
128. figurable Supported Supported Supported defined as the spare drive specifically assigned to a logical drive Supported the spare drive serving all logical drives A 1 TABLE A 1 Feature RAID Levels Maximum Number of logical drives RAID level dependency to each logical drive Maximum drive number of each logical drive Logical drive identification Maximum partitions of each logical drive Maximum number of logical drives in a logical volume Maximum number of logical volumes Maximum number of LUN per Host ID Concurrent I O Tag Command Queuing Dedicated Spare Drive Global Spare Drive Basic RAID Management Features Supported Supported Supported Supported With no spare drive assigned the controller will auto scan the failed drive and starts to rebuild automatically once the failed drive has been replaced Firmware can be downloaded during active I Os Administrator may find appropriate time to reset controller later Supported When user accidentally removes the wrong drive to cause the 24 drive failure of a one drive failed RAID5 RAID3 logical drive switch off the controller put the drive back and power on the controller The logical drive will be restored to one drive failed status Caching Operation Features Description Supported Supported SDRAM memory for enhanced performance Fast Page Memory with Parity for enhanced data security Intelligent Dynamic read ah
129. g 1 13 1 5 Battery Operation A battery should be changed every 2 years if the unit is continuously operated at 25 degrees C and yearly at 35 degrees C or higher The FRU shelf life for a battery is 3 years Battery Status The battery LED on far right side of the controller module will be a yellow LED if the battery is bad or missing The LED will be blinking green if the battery is charging and will be solid green when the battery is fully charged The initial firmware screen will also display the battery status at the top of the initial screen where BAT status will be BAD charging or fully charged Write Back Versus Write Through Cache Options Unfinished writes are cached in memory in write back mode If power to the array is discontinued data stored in the cache memory will not be lost Battery modules can support cache memory for several days Write cache is not automatically disabled when the battery is offline due to battery failure or a disconnected battery You can enable or disable the write back cache capabilities of the RAID controller To ensure data integrity you may choose to disable the Write Back cache option and switch to the Write Through cache option through the firmware application go to view and edit Configuration parameters and select Caching Parameters The risk of data loss is remote Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 1 6 1 14 RAID Pl
130. gical drive size you must re configure all host LUN mappings All the host LUN mappings are removed with any change to partition capacity See Mapping Logical Drive Partitions to Host LUNs on page 5 3 Note When a partition of logical drive logical volume is deleted the capacity of the deleted partition is added to the partition above the deleted partition Chapter 3 Viewing and Editing Logical Drives 3 15 3 7 Deleting a Logical Drive You can keep the default logical drive configuration or create new logical drives and different RAID levels with the following procedure To re configure the entire array with different logical drives and RAID levels you must delete the existing logical drive s and re configured the array prior to storing data on the array Note We highly recommend that you keep the default configuration which provides the maximum storage protection To delete a logical drive perform the following steps 1 On the Main Menu select view and edit Logical drives 2 Highlight the line with the logical drive and press Return 3 Select Delete logical drive and press Return M Caution Deleting a logical drive will destroy data 4 Select Yes when prompted to confirm 3 16 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Deleting a Partition of a Logical Drive NAME Size MB LV RAID Size MB Offset MB Pal 410A
131. giciel d tenu par des tiers et quicomprend la technologie relative aux polices de caract res est prot g par un copyright et licenci par des fournisseurs de Sun Des parties de ce produit pourront tre d riv es des syst mes Berkeley BSD licenci s par l Universit de Californie UNIX est une marque d pos e aux Etats Unis et dans d autres pays et licenci e exclusivement par X Open Company Ltd Sun Sun Microsystems le logo Sun AnswerBook2 docs sun com et Solaris sont des marques de fabrique ou des marques d pos es de Sun Microsystems Inc aux Etats Unis et dans d autres pays LA DOCUMENTATION EST FOURNIE EN L ETAT ET TOUTES AUTRES CONDITIONS CONDITIONS DECLARATIONS ET GARANTIES EXPRESSES OU TACITES SONT FORMELLEMENT EXCLUES DANS LA MESURE AUTORISEE PAR LA LOI APPLICABLE Y COMPRIS NOTAMMENT TOUTE GARANTIE IMPLICITE RELATIVE A LA QUALITE MARCHANDE A L APTITUDE A UNE UTILISATION PARTICULIERE OU A L ABSENCE DE CONTREFA ON Ca Adobe PostScript Contents Preface xi How This Book Is Organized xi Using UNIX Commands xii Typographic Conventions xiii Shell Prompts xiii Related Documentation xiv Technical Support xiv Accessing Sun Documentation Online xv Sun Welcomes Your Comments xv Basic RAID Concepts and Planning 1 1 1 1 Logical Drive 1 2 1 2 Logical Volume 2 1 3 RAID Levels 1 3 1 3 1 NRAID Disk Spanning 4 1 3 2 JBOD Expansion Unit Single Drive Control 1 5 1 3 3 RAID 1 Disk Mirroring 1 6
132. he command Clear drive status if you want to later remove a drive designation from the table gt Main Menu gt Quick installation view and edit Logical drives and edit logical Volumes and edit Host luns ew and edit scsi Drives View drive information add Local spare drive add Global spare drive E Delete global local spare drive Scan scsi drive E set slot Number 0 ON LINE 0 ON LINE HITACHI DK31CJ 72Fc HITACHI 6 SDR GE HITACHI SAF TE Channel 2 Channel 3 SCSI Channel 4 Channel 5 ats Vendor qnd Product 0 ON LINE Identifying scsi drive clone Failing drive scsi drive Utilities q add drive Entry Clear drive status FIGURE 64 Add Drive Entry 1 On the Main Menu select view and edit scsi Drives and press Return N Select an insertion spot within the SCSI drive table and press Return Q Select the add drive Entry function and press Return A channel list will be displayed Select a channel Chapter 6 Viewing and Editing SCSI Drives 6 11 Enter the desired ID number For installed SCSI drives a table will be shown indicating the available IDs Then press the Return key and select Yes A confirmation box will then be displayed Select Yes and press Return Removing an Empty Drive Entry To remove an empty drive entry delete its slot numb
133. he controller will not attempt to rebuild unless you apply a forced manual rebuild To enable this feature on the Main Menu choose view and edit Configuration parameters then select Drive side SCSI Parameters and select Periodic Auto Detect Failure Drive Swap Check Time When the Periodic Auto Detect Failure Drive Swap Check Time is Enabled that is a check time interval has been selected the controller will detect whether or not the failed drive has been swapped by checking the failed drive s channel ID Once the failed drive has been swapped the rebuild will begin immediately If the failed drive is not swapped but a local spare is added to the logical drive the rebuild will begin with the spare For a flowchart of automatic rebuild see FIGURE 8 1 Manual Rebuild When a user applies forced manual rebuild the controller will first examine whether there is any local spare assigned to the logical drive If yes it will automatically start to rebuild If there is no local spare available the controller will search for a global spare If there is a global spare the logical drive rebuild will begin See FIGURE 8 2 If neither local spare nor global spare is available the controller will examine the SCSI channel and ID of the failed drive After the failed drive has been replaced by a healthy one the logical drive rebuild begins on the new drive If there is no drive available for rebuilding the
134. heck protects the controller configuration from any unauthorized change The controller password and controller name share a 16 character space The maximum characters for the controller password is 15 When the controller name occupies 15 characters there is only one character left for the controller password and vice versa Chapter 10 System Functions Info and Event Logs 10 3 10 1 2 10 1 3 2 To set or change the controller password move the cursor bar to Change Password then press Return If a password has previously been set the controller will ask for the old password first If the password has not been set the controller will ask for the new password The password cannot be replaced unless a correct old password is provided 3 Enter the old password then press Return If the password is incorrect it will not allow you to change the password Instead it will display the message Password incorrect then return to the previous menu If the password is correct or there is no preset password it will ask for the new password 10 1 4 Disabling the Password To disable or delete the password press Return only in the password column that is used for entering a new password The existing password will be deleted No password checking will occur when entering the Main Menu from the Initial screen 10 1 5 Resetting Controller 1 Select system Functions in the Main Menu then press Return 2
135. ical drives If one or more logical drives have been deleted the drive indexing is changed after system reboot The second logical drive might become the first on the list after system reboot ne eop e e E cee 7 P View scsi drives Delete logical drive Partition logical drive ogical drive Name 3 Current Logical Drive Name New Logical Drive Name To enter a name for the logical drive perform the following steps Select view and edit Logical drives from the Main Menu and press Return Select the logical drive you want to assign a name and press Return Select logical drive name then press Return again The current logical drive name will be displayed on the screen You may now enter the new logical drive name in this field Enter the logical drive name then press Return to save the new name Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Q 3 18 Rebuilding a Logical Drive If no spare drive is ready for logical drive rebuild a failed drive should be replaced immediately by a new drive and the rebuild process should be initiated manually View scsi drives Delete logical drive Partition logical drive logical drive Name ogical drive c Rebuild Logical Drive No 0 gt gt gt gt gt gt 0 gt gt To rebuild a logical drive perform the following steps Select view and edit Logical drives from the Main Men
136. ide on 20 00 niae a Jorive 7 Nal ose wade t On re Rerrod Typically the default setting for transfer speed is not changed for the host or drive channel To view the options for transfer speed select view and edit Scsi channels highlight the drive or host channel press Return and select Wide transfer if the channel default is Narrow or select narrow transfer if the channel default is Wide Note Every time you change the SCSI Transfer Width you must reset the controller for the changes to take effect 7 14 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Viewing and Editing SCSI Target Drive Channel On the Main Menu select view and edit Scsi channels highlight the drive channel and press Return Select View and edit scsi target then press Return lt Main Menu gt Quick installation view and edit Logical drives channel Mode Primary controller scsi id econdary controller scsi id 5051 Terminator syne transfer Clock efWid 5 Term CurSynC1k CurWidl Wide transfer ee Parity check Enabled i EC Ar id a prive Nal seco miae E On Aarre Nero A list of all the SCSI targets and their current settings is displayed Press Return on a SCSI target to display an editable parameter menu on the screen Geto 11 evnet te rca Patty t 5 M Enabled Def 32 maximum sync x
137. ification on Normal Drive Writes method will affect the write performance during normal use To select the type of verification wanted perform the following steps Select view and edit Configuration parameters then Disk Array Parameters then press Return again The Disk Array Parameters menu is displayed Chapter 8 Viewing and Editing Configuration Parameters 8 25 8 5 2 2 Press Return on the Verification on Writes in the Disk Array Parameters menu The items for selection is displayed on screen lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters Communication Parameters Caching Parameters Host Driv ication on bui Writes i Di Verification on Normal Drive Writes Disabled 3 Select the desired item then press Return lt Main Menu 2 Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters s Communication Parameters Caching Parameters v nitialization Writes Dis V Enable Initialize RAID with Verify Data Ver il Yes No 4 Select Yes in the confirm box to enable or disable the function Follow
138. ill require that the same physical array of drives be used together in any remaining logical drives that are created with the remaining capacity In the New Configuration window the Add Disk button changes to Add Array when the remaining drive capacity is on multiple physical drives that have already been used to create a logical drive Now that the physical drives have been sliced they have to be selected as an array They cannot be selected separately Glossary 5 logical drive LUN mapping LUN masking mirroring RAID 1 N port out of band parity check partner group physical array Redundant Array of Independent Disks An arrangement of two or more disk drives configured to work together to provide more disk storage space better performance and or redundant backup of data Various combinations of these features are described by defined RAID levels Sun StorEdge arrays can support RAID 0 1 3 5 and 6 also called 1 0 For more detailed RAID definitions refer to RAID Levels on page 1 3 Descriptions of the read policies are as follows When you indicate a No Cache read policy the controller will not store data in the read cache Normal specifies that the current controller does not use Read ahead caching for the current drive Set the read policy to Read Ahead and the controller will read multiple adjacent blocks of data automatically This is most effective for applications with sequential reads Reb
139. in Menu gt Quick installation iew and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit Peripheral devices system Functions view system Information view and edit Event logs For additional commands highlight the first line or the desired logical drive LG and press Return The following menu is displayed _ a S1 152D800AC NA Delete logical drive Partition logical drive logical drive Name logical drive Assignments Expand logical drive add Scsi drives reGenerate parity cOpy and replace drive Under this menu command you can create multiple logical drives Once logical drives are created you can manipulate them by selecting the desired LG and pressing Return To create logical drives you must map the logical drives to a host channel with the view and edit Host luns command If this step is skipped the logical drives will not be visible to the host Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 3 1 3 2 Default Logical Drives and RAID Levels A logical drive is a set of drives grouped together to operate under a given RAID level Each controller is capable of supporting as many as 8 logical drives The logical drives can have the same or different RAID levels A logical drive can be further divided into a
140. ion view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit 5051 channels view and edit Configuration parameters view and edit Peripheral devices syst E Download Firmware k Advanced Maintenance Functions EE Save nuram to disks Save NURAM To Disks com Select Yes to confirm A prompt will inform you that NVRAM information has been successfully saved To restore the configuration refer to Restoring Configuration NVRAM from a File on page 10 5 Use arrow keys to scroll down and select Controller Maintenance 10 3 10 6 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Viewing Event Logs on Screen A controller event log records an event or alarm which occurs after the system is powered on Note The Event Monitoring Units in each RAID unit and each Expansion Unit send messages to the controller log which report problems and status of the fans temperature and voltage Caution Powering off or resetting the controller will automatically delete all recorded event logs To view the event logs on screen select view and edit Event logs on the Main Menu and press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit gonf ta
141. it is available for all logical drives see FIGURE 1 10 When a member drive from any of the logical drives fails the global spare drive joins that logical drive and automatically starts to rebuild A local spare drive always has higher priority than a global spare drive that is if a drive fails and there is a local spare and a global spare drive available the local spare drive will be used Global Spare Drive Global Spare Drive of fo R x N Logical Drive 0 Logical Drive 1 Logical Drive 2 FIGURE 1 10 Global Spare Chapter 1 Basic RAID Concepts and Planning 1 11 1 4 2 1 4 3 Having Both Local and Global Spares In FIGURE 1 11 the member drives in Logical Drive 0 are 9 GB drives and the members in Logical Drives 1 and 2 are all 4 GB drives Local Spare Drive Global Spare Drive Q 9GB 0 4GB 4GB 4GB d 9GB 9GB Logical Drive 0 Logical Drive 1 Logical Drive 2 FIGURE 1 11 Mixing Local and Global Spares A local spare drive always has higher priority than a global spare drive that is if a drive fails and both a local spare and a global spare drive are available the local spare drive will be used In FIGURE 1 11 it is not possible for the 4 GB global spare drive to join logical drive 0 because of its insufficient capacity The 9 G
142. ke configuration for the Hub itself contains port bypass circuitry that forms an internal loop inside Bypass circuits can automatically reconfigure the loop once a device is removed or added without disrupting the physical connection to other devices A group is a new data object that allows multiple servers to be contained under a single category are similar in concept to domains and allow you to organize servers within Configuration Service Instead of a linear tree of all the managed servers the Configuration Service operator can organize the servers into like sets or groups In the case where many servers are present groups allow more icons to appear at the same time in the main Configuration Service window without scrolling Groups are not required You can configure Configuration Service for no groups and fifteen servers for example or for one group with ten servers underneath with an additional five at the top level Configuration Service allows any combination The number of groups permitted and the number of servers within a group is limited only by available array memory If a server is a member of a group and a user deletes that group from the group list box Configuration Service reassigns the servers in that group to the no group category Configuration Service automatically remaps the tree in the main window A drive in a RAID 1 or RAID 5 configuration that contains no data and acts as a standby in case another drive fails
143. l drive belongs NA indicated no logical volume RAID RAID level SIZE MB Capacity of the logical drive in megabytes Status Logical drive status The logical drive is now initializing The logical drive was improperly created or modified For example the logical drive was created with Optimization for Sequential I O but the current setting is Optimization for Random I O The logical drive is in good condition A drive member failed in the logical drive More than one drive member in a logical drive has failed The logical drive is rebuilding INITING INVALID GOOD DRV FAILED FATAL FAIL REBUILDING 0 3 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 TABLE 3 1 Parameters Displayed in the Logical Drive Status Window Continued Parameter Description DRV ABSENT One of the disk drives cannot be detected INCOMPLETE Two or more member disk drives in this logical drive have failed 0 Indicates the performance optimization set when the logical drive was initialized This cannot be changed after the logical drive is created S Optimization for Sequential I O R Optimization for Random I O LN Total number of drive members in this logical drive SB Number of standby drives available for the logical drive This includes local spare and global spare disk drives available for the logical drive FL Number of failed disk drive member s in the logical drive Na
144. l drives in the array are treated as though they have the capacity of the smallest member drive in the logical array 3 22 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 2 Press Return to select a logical drive and choose add SCSI drives from the menu Proceed with confirming the selection LG ID LV RAID Size MB Status 0 LN SB FL NAME BIA ANAO EE SDE 0 View scsi drives Delete logical drive Partition logical drive logical drive Nam logical drive Aga ignments Ex pand Log ical lt cucccec lt Bo zi Add Drives to Logical Drive 6 Lves No 7 NONE 3 A list of available drives is displayed Select one or more drive s to add to the target logical drive by pressing Return The selected drive is indicated by an asterisk mark EE E View scsi drives Slot chi Status Vendor and Product 10 Et oy 6 ow 2 eo none weno ooi a 4 99 aome nove new 3 eoj wone SSCS 06 gt gt gt gt gt 80 gt gt 4 Press ESC to proceed and the notification will prompt dding op p e e _ RA DS LII 2 5 0 Notification 2189 LG Logical Drive NOTICE Starting Add SCSI Drive Operation 06 gt gt gt gt gt
145. led view view Slot number maximum s ne xfer Clock 0 Ch p D Set SCSI Target Maximum Xfer Wide Supported 2 m 2 R yes No 3 gt gt 9 gt gt Select maximum xfer Width then press Return Select Yes in the dialog box to confirm the setting Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 7 16 Quic Slot chi 10 Syactlk X riid ParityGhk Disconnect Teatount Parity Check a Enseteil Erabiea berce ide Disabled Enabled Enabled Slot number maximum syne xfer Clock maximum xfer Wid Enable Parity Checking ves No C te sf Enables Der caz Select Parity check Select Yes in the dialog box that follows to confirm the setting Select Yes in the dialog box that follows to confirm the 7 17 Quic Slot ohi 1 Synctik friid Parityohk Disconnect Teatount Disconnecting Support al of 88 Or at Enabled e Enabled Def 32 Enabled Def 32 Enabled Def 32 Enabled Def 32 Enabled Def 32 Enabled Def 32 Chapter 7 Viewing and Editing SCSI Channels Slot number max imum xfer rer Clock maximum x er Wid arity check Disconnect support m R Enabled Select Disconnect support setting 7 10 4 7 10 5 Maximum Tag Count Stet oh 10 erreti Xf rHid ParityChk Disconnect Tasco al 2 ol of ise
146. led Chl ID Chapter 9 Viewing and Editing Peripheral Devices 43 Product ID StorEdge 2316 A Revision Level 6 62 Unique ID 3636363132323338 Operational Operational Operational and On Operational and On Sensor 78 Sensor Sensor Sensor Sensor Sensor Sensor D D D D D D D D D D D RR OSs A 2 Ht n ian aen et et Bann et et Lann Kann et Off or No Speaker Drive 510 8 SCSI ID 8 FIGURE 9 3 Example of SAF TE Device Status Window in a Single Bus Configuration In a dual bus configuration example the below SAF TE window displays No Device Inserted for six drives which are actually inserted into slots The SAF TE protocol does not support a dual bus configuration and only recognizes one bus half the drives if you have a dual bus configuration Device Inserted Inserted Inserted Inserted Inserted Product ID StorEdge 3310 A Revision Level 8 Unique ID 3132333435362020 Cooling Fan 8 Operational Operational Operational and On and On BROS 6 O jt Sensor Sensor Off or No Speaker Drive Slot No Device Inserted FIGURE 9 4 Example of SAF TE Device Status Window in a Dual Bus Configuration 9 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Setting Peripheral Device Entry The menu functions within the Set Peripheral Device Entry include the following m Redundant Controller a UPS Status gt Main Menu gt gical drives g
147. line SCSI Drives Maximum Drive Capacity 77 MB Spare SCSI Drives Logical Drive Assignment Primary Controller Create Logical Drive ves No A message will indicate that the logical drive initialization has begun d Press Esc key to cancel the Notification prompt e After the logical drive initialization is completed use the Esc key to return to the Main Menu 7 Select view and edit Logical drives to view details of the created logical drive Changing a Logical Drive Controller Assignment By default logical drives are automatically assigned to the primary controller If you assign half the drives to the secondary controller the maximum speed and performance will be somewhat improved due to the redistribution of the traffic To balance the workload between both controllers you can distribute your logical drives between the primary controller displayed as the Primary ID or PID and the secondary controller displayed as the Secondary ID or SID After a logical drive has been created it can be assigned to the secondary controller Then the host computer associated with the logical drive can be mapped to the secondary controller see Mapping Logical Drive Partitions to Host LUNs on page 5 3 To change a logical drive controller assignment select view and edit Logical drives from the Main Menu and press Return Chapter 3 Viewing and Editing Logical Drives 1 3 5 2 Select l
148. maximum of 32 partitions The total number of partitions must not exceed 128 partitions per RAID array To create a maximum of 128 partitions refer to Planning for 128 LUNs on page 5 1 For a 12 drive array the RAID array will be pre configured as follows one RAID 5 logical drive consisting of four physical drives m one RAID 5 logical drive consisting of five physical drives m one global spare For more information about spares and RAID levels refer to RAID Levels on page 1 3 and Local and Global Spare Drives on page 1 10 Chapter 3 Viewing and Editing Logical Drives 3 2 Viewing the Logical Drive Status Table To check and configure logical drives from the Main Menu select view and edit Logical drives and press Return The following screen displays the status of all logical drives LG ID LV RAID Size MB Status O LN SB FL NAME 64312D6F NA RAIDO 208002 GOOD S 6 D a V S1 76605A49 NA RAIDO 208482 0000 5 6 0 V 2 NONE v s 3 NONE TABLE 3 1 Parameters Displayed in the Logical Drive Status Window Parameter Description LG Logical drive number P0 Logical drive 0 of the primary controller where P primary controller and 0 logical drive number S1 Logical drive 1 of the secondary controller where s secondary controller and 1 logical drive number ID Logical drive ID number controller generated LV The logical volume to which this logica
149. me Logical drive name user configurable Creating Logical Drive s The RAID array is already configured with one or two RAID 5 logical drives and one global spare Each logical drive consists of a single partition by default This procedure is used to modify the RAID level and to add more logical drives if necessary In this procedure you configure a logical drive to contain one or more hard drives based on the desired RAID level and partition the logical drive into additional partitions Note If you want to assign 128 partitions to 128 LUNs in an array you need to have a minimum of four logical drives each with 32 partitions For redundancy across separate channels you can also create a logical drive containing drives distributed over separate channels You can then partition the logical unit into one or several partitions A logical drive consists of a group of SCSI drives Each logical drive can be configured a different RAID level Chapter 3 Viewing and Editing Logical Drives 3 5 3 4 A drive can be assigned as the local spare drive to one specified logical drive or as a global spare drive that is available to all logical drives on the RAID array Spares can be part of automatic array rebuild A spare is not available for logical drives with no data redundancy NRAID and RAID 0 4 4 i GB GB Drive Channel 0 ID5 IDO ID3 ID2 2 2 i GB GB Drive Channel 1 O oN
150. n swapped When a logical drive s member drive fails the controller will detect the failed drive at the selected time interval Once the failed drive has been swapped with a drive that has adequate capacity to rebuild the logical drive the rebuild will begin automatically The default setting is Disabled meaning that the controller will not auto detect the swap of a failed drive When the Periodic Drive Check Time is set to Disabled the controller is not able to detect any drive removal that occurs after the controller has been powered on The controller only detects drive removal when a host attempts to access the data on the drive SCSI Motor Spin Up Disabled SCSI Reset at Power Up Disabled Disk Access Delay Time 66 5 SCSI I 0_Timeout 10 seconds Maximum Tag Count 32 Periodic Drive Check Time 10 seconds Periodic Ses 5 and SCS Device Check Time 5 8 isa Drive side Parameters Dis Array Parameters Redundant Controller Parameters Controller Parameters To enable this feature perform the following steps Select Periodic Auto Detect Failure Drive Swap Check Time and press Return Select the desired interval and press Return Select Yes in the dialog box that follows to confirm the setting By choosing a time value to enable the Periodic Drive Check Time the controller polls all connected drives in the controller s drive channels at the assigned interval Drive removal is detected even if a host d
151. nfiguration parameters Host side SCSI Parameters then press Return Select Maximum Queued I O Count then press Return A list of available selections is displayed Select an item then press Return Select Yes in the dialog box that follows to confirm the setting LUNs Per Host SCSI ID Main Menu gt Quick installation view Maximum Queued I70 Count 256 view UNs p D view ax Number_o oncurrent _ ost onnection view Number of Tags Reserved for each Host LUN Connectio Feripheral Device Type e Parameters Crh ingen ieee ector Mapping Configuration 6 onnection Option Loop only Host s ide Parameters Drive side Parameters Disk Array Parameters Redundant Controller Parameters Controller Parameters This function is used to change the number of LUNs per host SCSI ID The default setting is 32 LUNs with a predefined range of 1 to 32 LUNs per logical drive available A maximum of 128 LUNs per array is allowed From the Main Menu select view and edit Configuration parameters Host side SCSI Parameters then press Return Select LUNs per Host SCSI ID then press Return A list of selections is displayed Select an item then press Return Select Yes in the dialog box that follows to confirm the setting 8 6 5 8 30 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 8 31 Cylinder Head Sector Mapping In SCSI arrays the drive capacity i
152. nnels or drives when you restore the configuration f Caution If the channels or SCIS IDs are not a correct match for the array you will with the configuration file Note In the Configuration Service program you can save a configuration file which can restore all configurations and rebuild all logical drives However it will also erase all data when it rebuilds all logical drives so operation is only performed when no data has been stored or all data has been transferred to another array To restore configuration settings from a saved NVRAM file perform the following steps 1 From the Main Menu choose system functions 2 Select Controller maintenance and press Return 3 Select Restore NVRAM from disks and press Return 4 Press Yes to confirm A prompt will notify you that the controller NVRAM data has been successfully restored from disks Chapter 10 System Functions Info and Event Logs 10 5 Saving Configuration NVRAM to Disk This function is used to save controller dependent configuration information and is highly recommended whenever a configuration change is made The logical configuration information will be stored within the logical drive Note A logical drive must exist for the controller to write NVRAM content onto it From the Main Menu select system Functions n a save nvram to disks then press Return lt Main Menu gt Quick installat
153. oes not attempt to access data on the drive Chapter 8 Viewing and Editing Configuration Parameters 3 8 4 8 Disk Array Parameters Select View and edit Configuration parameters on the Main Menu and press Return Then select Disk Array Parameters Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters Vv Communication Parameters Caching Parameters Host side SCSI Parameters Drive side SCSI Parameters Dis Array Parameters ters 6 Rebuild Priorit ow Verification on Writes Rebuild Priority lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Contiguration parameters rameters rs arameters Improved Parameters High eters ters 6 RETA ye ele a ow Verification on Writes The RAID controller provides a background rebuilding ability This means the controller is able to serve other I O requests while rebuilding the Logical Drives The time required to rebuild a drive set will largely depend on the total capacity of the Logical Drive being rebuilt Additionally the rebuilding process is totally transparent to the host computer or the operating environment 8 9 8 5
154. ogical drive assignments and press Return LG ID L RAID Size MB Status 0 LN SB FL NAME P 6281CB39 NA RAIDS 0000 8 3 8 oF View scsi drives Delete logical drive Partition logical drive m logical drive Name logical drive Assignments Redundant Controller Logical Drive Assign to Secondary Controller Yes No ecucceccec co 6 NONE 7 NONE The reassignment is evident from the view and edit Logical drives screen A P in front of the LG number means that the logical drive is assigned to the primary controller An S in front of the LG number means that the logical drive is assigned to a Secondary controller For example S1 indicates that logical drive 1 assigned to the secondary controller Note The editable logical drive NAME name is used only in the RAID firmware administration and monitoring and does not appear anywhere on the host You can create a logical drive NAME after the logical drive is created Select the logical drive in the above screen and press Return Then select logical drive name enter the desired name and press Return 3 Press Esc to return to the Main Menu 4 Reset the controller to implement the change Select system Functions on the Main Menu Then select Reset Controller and press Return You must reset the controller for the changes to take
155. ogical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters Communication Parameters Caching Parameters ache Disabled Enable Write Back Cache To change the caching parameter option perform the following steps On the Main Menu select view and edit Configuration parameters and press Return Select Caching Parameters and press Return Select Write Back Cache then press Return Enabled or Disabled will display the current setting with the Write Back caching Select Yes in the dialog box that follows to confirm the setting 8 1 2 8 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Controller Failure Symptoms Logical Drive Rebuild and Replacement Controller failure symptoms are as follows The surviving controller sounds an audible alarm The center LED status symbol flashes yellow on the failed controller The surviving controller sends event messages announcing the controller failure of the other controller A warning message SCSI Bus Reset Issued is displayed for each of the SCSI channels In addition an alert message says Redundant Controller Failure Detected General Controller Failure Response If one controller in the redundant controller configuration fails the surviving controller tem
156. ontroller Name Controller Parameters FIGURE 8 3 Controller Name 1 Select view and edit Configuration parameters Controller Parameters then press Return 2 From the Controller Parameters menu select Controller Name and then press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters 00620116 Name Not Set New Controller Name Depending on the controller s current settings you will be prompted to either enter a new name or modify the existing name for the designated controller 606 8 12 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 3 Enter a name for the controller and confirm by pressing the Enter key LCD Title Display Controller Logo Not Applicable This function is not applicable to this product Password Validation Timeout This function sets a timeout when a password is required to be entered If a single password is set the operator must enter this case sensitive alphanumeric password each time the controller is reset causing an initial display of the Terminal Interface screen In most cases the default value Always Check should be left unchanged Although this function allows you to set the timeout se
157. orEdge 3310 SCSI RAID Firmware Guide October 2002 Viewing and Editing SCSI Drives This chapter describes how to view and edit physical drive parameters Topics covered include SCSI Drive Status Table on page 6 2 Assigning a Local Spare Drive on page 6 4 Creating a Global Spare on page 6 5 Viewing Drive Information on page 6 6 Viewing the Connected Drives on page 6 7 Scanning Drives on page 6 8 Deleting a Spare Drive on page 6 9 Setting Slot Numbers on page 6 10 Assigning a Slot Number to an Empty Slot on page 6 10 Adding or Deleting Drive Entries on page 6 11 Deleting a Slot Number on page 6 11 Removing an Empty Drive Entry on page 6 12 Identifying a Drive on page 6 13 Cloning Failing Drive on page 6 16 Replacing After Clone on page 6 16 a Perpetual Clone on page 6 18 SCSI Drive Utilities Do Not Use on page 6 21 SCSI Drive Low level Format on page 6 21 SCSI Drive Read Write Test on page 6 22 To view and edit physical drive parameters select view and edit scsi Drives on the Main Menu and press Return The SCSI drive status table is displayed Use this command to view the SCSI drives associated with the selected logical drive The drive s channel ID status and model number can be viewed in the table displayed on screen To modify or view additional information highlight a line in the SCSI drive ta
158. porarily takes over for the failed controller until it is replaced A failed controller is managed by the surviving controller which disables and disconnects from its counterpart while gaining access to all the signal paths The surviving controller then manages the ensuing event notifications and takes over all processes It is always the primary controller regardless of its original status and any replacement controller afterward will assume the role of the secondary controller The failover and failback processes are completely transparent to the host Controllers are hot swappable and replacing a failed unit takes only a few minutes To maintain your redundant controller configuration replace the failed controller as soon as possible Chapter 8 Viewing and Editing Configuration Parameters 5 8 2 8 2 1 Automatic Logical Drive Rebuild Rebuild with Spare When a member drive in a logical drive fails the controller will first examine whether there is a local spare drive assigned to this logical drive If yes it will automatically start to rebuild the data of the failed disk to it If there is no local spare available the controller will search for a global spare If there is a global spare it will automatically use it to rebuild the logical drive Failed Drive Swap Detect If neither a local spare drive nor a global spare drive is available and the Periodic Auto Detect Failure Drive Swap Check Time is disabled t
159. pport 7 17 disconnecting support 7 SCSI target drive channel 7 17 disk access delay time 8 19 array parameters advanced config 4 mirroring 1 6 striping mirroring 1 7 with dedicated parity disk 1 8 documentation how book is organized Preface xi using UNIX commands Preface xii documentation available Preface xiv documentation comments Preface xv documentation online Preface xv drive configuring 6 entries adding 6 11 deleting 6 11 failed checking 8 23 spares global 1 11 local 1 11 drive channel commands 7 4 drive side parameters advanced config 8 16 Drive side SCSI Parameters command 8 17 8 18 DRV FAILED status 3 5 dual bus configurations 7 E ECC drives 1 3 ECC SDRAM function 8 15 error correction code drives 1 3 October 2002 SDRAM ECC 8 15 unique identifier 8 15 resetting 10 4 shutting down 10 5 voltage and temperature checking 9 8 controller assignment 3 11 controller failure 8 5 controller IDs 7 9 controller NAME 3 12 Controller Name command 8 12 Controller Parameters command 8 13 copy and replace logical drive 3 25 copy and replace drive command 3 25 create logical drive 3 8 creating logical volume 4 5 cylinder head sector mapping 8 31 D defaults controller 1 13 drive swap check time 8 23 enable UPS status 9 6 host LUN connections 8 28 logical drives 3 3 number of LUNs per host SCSI ID 8 30 password validation 8 13 RAID levels 3 3 S
160. printed copies of the Sun StorEdge 3310 SCSI array manuals at http corppub iuniverse com marketplace sun You can view print or purchase a broad selection of Sun documentation including localized versions at http www sun com documentation Sun Welcomes Your Comments Sun is interested in improving its documentation and welcomes your comments and suggestions You can email your comments to Sun at docfeedback sun com Please include the part number 816 7296 11 of your document in the subject line of your email Preface xv xvi Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 CHAPTER 1 Basic RAID Concepts and Planning Redundant Arrays of Independent Disks or RAID offers major benefits in availability capacity and performance The Sun StorEdge arrays provide complete RAID functionality and enhanced drive failure management This chapter covers the following concepts and planning guidelines Logical Drive on page 1 2 Logical Volume on page 1 2 RAID Levels on page 1 3 Local and Global Spare Drives on page 1 10 Controller Defaults and Limitations on page 1 13 RAID Planning Considerations on page 1 15 Basic Configuration on page 1 16 11 Logical Drive Increased availability capacity and performance are achieved by creating logical drives A logical drive is simply an array of independent physical drives The logical drive appears to the host
161. r host IDs This is the most commonly used configuration or m Create six host IDs this requires three host drives perform one of the following steps and then map the 128 partitions to the 6 host IDs a Create 4 logical drives of 32 partitions each a Create 5 logical drives with total number of partitions equaling 128 four logical drives with 25 partitions each and one with 28 partitions a Create 6 logical drives six logical drives with 21 partitions each and one with 23 partitions For details on how to add host IDs refer to Creating Additional Host IDs on page 7 9 5 1 41 Note For an overview of how partitions LUNs and host IDs work refer to Mapping Logical Drive Partitions to Host LUNs on page 5 3 To set up 128 LUNs the following steps are required 1 Create a minimum of four host IDs By default you have two host IDs Channel 1 ID 0 primary controller and Channel 3 ID 1 secondary controller You can have a total of two IDs per channel one for the Primary Controller and one for the secondary controller For the detailed procedure refer to Creating Additional Host IDs on page 7 9 2 Confirm that the allowed number of LUNs per host id is 32 Go to view and edit Configuration parameters and select hostside scsi parameters If the LUNs per Host SCSI ID is not 32 highlight the line press Return and select the number 32 lt Main Menu gt Quick
162. r registered trademarks of Sun Microsystems Inc in the U S and in other countries Federal Acquisitions Commercial Software Government Users Subject to Standard License Terms and Conditions DOCUMENTATION IS PROVIDED AS IS AND ALL EXPRESS OR IMPLIED CONDITIONS REPRESENTATIONS AND WARRANTIES INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT ARE DISCLAIMED EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TO BE LEGALLY INVALID Copyright 2002 Dot Hill Systems Corporation 6305 El Camino Real Carlsbad Californie 92009 USA Tous droits r serv s Sun Microsystems Inc et Dot Hill Systems Corporation peuvent avoir les droits de propri t intellectuels relatants 8 la technologie incorpor e dans ce produit En particulier et sans la limitation ces droits de propri t intellectuels peuvent inclure un ou plus des brevets am ricains num r s a http www sun com patents et un ou les brevets plus suppl mentaires ou les applications de brevet en attente dans les Etats Unis et les autres pays Ce produit ou document est prot g par un copyright et distribu avec des licences qui en restreignent l utilisation la copie la distribution et la d compilation Aucune partie de ce produit ou document ne peut tre reproduite sous aucune forme par quelque moyen que ce soit sans l autorisation pr alable et crite de Sun et de ses bailleurs de licence s il y ena Le lo
163. rating environment support is needed 3 28 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 In the following example the logical drive is originally composed of three member drives and each member drive has the capacity of 1 Gigabyte The Copy and Replace function has been performed on the logical drive and each member drive has been replaced by a new drive with the capacity of 2 Gigabytes The next step is to perform Expand logical drive function to utilize the additional capacity brought by the new drives 1 Select view and edit Logical drives from the Main Menu select the logical drive with its members copied and replaced and press Return 2 Select Expand logical drive in the submenu and press Return to proceed A confirming box is displayed 3 Proceed by pressing Return or entering any value no larger than the maximum Eo Or Rao 6 E drive expand capacity and press Return View scsi drives Delete logical drive Partition logical drive logical drive Name logical drive Assignments xpand logical drive 6 gt gt gt gt gt gt 8 gt gt Maximum Available Drive Free Ca acity 1200MB Maximum Drive Expand Capacity MB 1 Poo 5 6 4 Select Yes to confirm and proceed View scsi drives Delete logical drive Partition logical drive logical drive Name logical drive Assignments Expand logical drive a
164. rollers exactly the same The two controllers continuously monitor each other When a controller detects that the other controller is not responding the working controller immediately takes over and disables the failed controller It is necessary to connect all interfaces to both controllers so that the surviving controller can readily continue all services provided for the RAID system For example if you connect one controller to the Ethernet you should also connect the second controller to the Ethernet In an active to active configuration standard configuration you can assign any appropriate logical drives to either of the controllers and then map the logical configurations to host channel IDs LUNs I O requests from host computer are directed to the primary or the secondary controller accordingly The total drive capacity can be grouped into several logical configurations and equally assigned to both controllers so that they share the workload The active to active configuration engages all array resources to actively maximize performance Users might also assign all logical configurations to one controller and let the other act as a standby An active to standby configuration is an available configuration but it is not usually selected By assigning all the logical configurations of drives to one controller the other controller stays idle and becomes active only when its counterpart fails Chapter 1 Basic RAID Concepts and Plannin
165. s and press Return 9 2 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 2 Select View Peripheral Device Status and press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit Peripheral devices sS Uiew Peripheral Device Status vi 5 D ITEM STATUS LOCATION 8 6 Redundant Controller Enabled Primary AF TE Device perational Channel ID 3 Select SAF TE Device and press Return to view the status of temperature sensors power supplies beeper speaker and cooling fans The temperature sensor displays the current temperature of each sensor in degrees Fahrenheit The drive slot status indicates that a slot is filled by displaying a SCSI ID number Single bus configuration 0 through 13 ID numbers if all 12 drives are filled SCSI IDs 6 and 7 are reserved for host communication If there is an empty slot the message No Device Inserted is displayed See FIGURE 9 3 Dual bus configuration not supported the message No Device Inserted for the six drives on one channel and six ID numbers for the second channel See FIGURE 9 4 To check that you have all slots filled in a dual bus configuration see SCSI Drive Status Table on page 6 2 and check the column labe
166. s decided by the number of blocks Some operating environments read the capacity of the array based on the cylinder head sector count of the drives For Sun Solaris the cylinder cannot exceed 65535 so you can choose cylinder lt 65535 The controller automatically adjusts the head sector count and then the operating environment can read the correct drive capacity For a Sun Solaris configuration the recommended values are listed in the following table TABLE 8 1 Cylinder Head Sector Mapping under Sun Solaris Capacity Cylinder Head Sector lt 64 GB 64 32 64 128 GB 64 64 128 256 GB 127 64 256 512 GB 127 127 512 GB 1 TB 255 127 Currently Solaris does not support drive capacity larger than 1 terabyte To configure Sector Ranges Head Ranges and Cylinder Ranges perform the following steps Select view and edit Configuration parameters on the Main Menu Select Host Side SCSI Parameters then select Host Cylinder Head Sector Mapping Configuration Chapter 8 Viewing and Editing Configuration Parameters 8 6 6 3 Select Sector Ranges and choose the desired value lt Main Menu gt Quick installation view view Maximum Queued 1 0 Count 256 view LUNs per Host SCSI ID 8 view Max Number_of Concurrent Host LUN Connection Def 4 Number of Tags Reserved for each Host LUN Connection Def 32 Peripheral Device T Parameters 4 Select Head Ranges
167. s path for the controllers is displayed as RCCOM Redundant Controller Communications 2 Highlight the channel which you want to modify and press Return Use the arrow key to select Yes if you want to change the host or drive assignment lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels T I T I yv Ch efWid Term CurSynC1k CurWid channel Mode v GH P L S Change Mode to Host Channel 1 5 On 80 92 5 Yes No 2 L On 80 02 View and edit scsi target 3 parity check Enabled L 80 OMHZz i view chip information 7 6 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Caution The channels of redundant controllers must be the same For example if the primary controller uses channel 2 to connect to a group of drives the secondary controller must also use channel 2 to connect to the same group of drives Changes to the primary controller are automatically be made to the secondary controller Permanent SCSI Drive Channel IDs Each array must be configured as a single bus configuration or a dual bus configuration based on where the SCSI bus cable is attached on the I O module For bus configuration details refer to the chapter on Connecting Ports in the Sun StorEdge Installation Opera
168. s per second or IOPS Video Recording Playback and Imaging Applications This kind of application usually belongs to video playback video post production editing or other similar applications These applications read or write large files to and from storage in a sequential order The size of each I O can be 128K 256K 512K or up to 1MB Performance is measured in MB Sec 8 2 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 When an array works with applications such as video or image oriented applications the application reads writes from the drive as large block sequential files instead of small block and randomly accessed files Optimization for Random I O 2K block size The logical drive cache memory and other controller parameters will be adjusted for the use of database transaction processing applications Optimization for Sequential I O 128K block size Optimization for Sequential I O provides larger stripe size block size also known as Chunk size than Optimization for Random I O Numerous controller s internal parameters will also be changed to optimize for sequential or random I O The change will take effect after the controller resets The logical drive cache memory and other controller internal parameters will be adjusted for the use of video imaging applications Optimization for Random or Sequential I O lt Main Menu gt Quick installation view and edit Logical drives
169. scriptor strings Device Unknown Status gt 3 23 SES C_ I_ Temperature Sensor _ lt Vendor descriptor strings 1260106 Not Available gt 3f24 SES C_ I_ UPS _ lt Vendor descriptor strings Device Not Supported gt 3f24 SES C_ I_ UPS lt Vendor descriptor strings 1200166 Not installed gt 3 24 SES 1 UPS _ lt Vendor descriptor strings Device Unknown Status gt 3 24 SES C_ 1 UPS _ lt Vendor descriptor strings Device Not Available gt 3f21 SES C_ 1 Voltage sensor _ lt Vendor descriptor strings Device Not Supported gt 3f21 SES C_ I_ Voltage sensor _ lt Vendor descriptor strings Device Not installed gt 0 8 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 3f21 SES C_ I_ Voltage sensor _ lt Vendor descriptor strings Device Unknown Status gt 3f21 SES C_ 1 Voltage sensor _ lt Vendor descriptor strings Device Not Available gt 3f21 SES C_ I_ Current sensor _ lt Vendor descriptor strings Device Not Supported gt 3f21 SES C_ I_ Current sensor _ lt Vendor descriptor strings Device Not installed gt 3f21 SES C_ I_ Current sensor _ lt Vendor descriptor strings Device Unknown Status gt 3f21 SES C_ I_ Current sensor _ lt Vendor descriptor strings Device Not Available gt General Peripheral Device 321 Peripheral Device ALERT Power Supply Failure Detected 3 22 Cooling Fan Not Installed 3 22 Cooling Fan Failure Detec
170. se Notes Sun StorEdge 3310 SCSI Array Installation Operation and Service Manual Sun StorEdge 3310 SCSI Array Best Practices Manual Sun StorEdge 3310 SCSI Array Safety Regulatory and Compliance Manual Sun StorEdge 3310 SCSI Configuration Service User Guide Sun StorEdge 3310 SCSI Diagnostic Reporter User Guide Sun StorEdge 3310 SCSI CLI Version 1 0 User Guide Application Late breaking news Installation and service Best practices Safety and compliance Monitoring and configuration software Reporting software Command line interface tools Technical Support For late breaking news and troubleshooting tips review the Sun StorEdge 3310 SCSI Array Release Notes located at www sun com products n solutions hardware docs Network_Storage_Solutions Workgroup 0 m For 24 hour access to web based support solutions visit the Online Support Center at www sun com service onlin To initiate or check on a USA only service request contact Sun support at 1 800 USA4SUN To obtain international technical support contact the sales office of a specific country at www sun com service contacting sales html xiv Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Accessing Sun Documentation Online All Sun StorEdge 3310 SCSI Array online documentation is located at http www sun com products n solutions hardware docs Network_Storage_Solutions Workgroup 3310 You can order
171. selected drive Press Return to deselect a logical drive p pe 5 eS A 1 ogical Volume Assignments 2 Redundant Controller Logical Volume Assign to Secondary Controller 3 Yes No Logical volumes can also be assigned to different controllers primary or secondary The default is primary Press ESC if change is not preferred 5 As all the member logical drives are selected press ESC to continue Logical Drive Count Logical Volume Assignment Primary Controller Create Logical Volume ves No The logical volume creation confirm box is displayed Select Yes to create the logical volume 6 Press Return and the information of the created logical volume is displayed 4 6 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 4 3 Expanding a Logical Volume To expand a logical volume expand logical drive s in the logical volume and then perform Expand logical volume Q Delete logical volume 2 Partition logical volume logical volume Assignments lt cucccce When prompted by Expand Logical Volume select Yes to confirm and the process will be completed immediately Chapter 4 Viewing and Editing Logical Volumes 7 Viewing a Logical Volume Status Table To check and configure logical drives from the Main Menu select view and edit Logical drives and press Return The following screen displays the status of all logical drives Caution This feature is not
172. servers and from mail clients to mail servers The messages can then be retrieved with an e mail client using either POP or IMAP Simple Network Management Protocol A set of protocols for managing complex networks SNMP works by sending messages called protocol data units PDUs to different parts of a network SNMP compliant devices called agents store data about themselves in Management Information Bases MIBs and return this data to the SNMP requesters worldwide name A number used to identify array logical drives in both the array software and in Solaris operating environment Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 LUN LVD MB NVRAM PID RAID SAN SCSI SES SID S M A R T SMTP SNMP WWN Glossary 2 Terminology A pair of components such as storage controllers in a failure tolerant RAID array that share a task or set of tasks when both are functioning normally When one component of the pair fails the other takes the entire load Dual active controllers also called dual active controllers are connected to the same set of devices and provide a combination of higher I O performance and greater failure tolerance than a single controller A process where data is automatically reconstructed after a drive failure and written to a standby spare drive An automatic rebuild will also occur when a new drive is installed manually in place of a failed drive If the rebuild process is int
173. side 8 16 drive side SCSI 8 17 host side advanced config 8 27 peripheral device 8 33 physical drives 6 1 parity logical drive checking 3 20 parity check 7 17 definition Glossary 5 SCSI target drive channel 7 17 partitioning logical volume 4 3 partitions deleting 3 17 logical drive deleting 3 17 logical volume maximum 1 2 maximum 1 16 4 2 partner group definition Glossary 5 password changing 10 3 disabling 10 4 setting anew 10 3 setting new 10 3 validation timeout 8 13 Password Validation Timeout command 8 14 periodic drive check time 8 22 periodic drive swap auto check 8 23 peripheral device parameters 8 33 setting 9 5 viewing status 9 2 Index 5 main menu 2 5 navigating 5 quick installation 2 5 manual rebuild 8 6 mapping cylinder head sector 8 31 maximum queued I O count 8 29 tag count 8 tag count tag command queuing 8 21 transfer width 7 16 maximum concurrent host LUN connections 8 28 maximum drive capacity 3 9 Maximum Queued I O Count command 8 29 maximum sync xfer Clock command 7 16 Maximum Tag Count tag command queuing command 8 21 maximum Tag count command 7 18 maximum xfer Width command 7 16 mirroring 1 6 mirroring RAID 1 definition Glossary 5 MISSING drive status 6 3 motor spin up 8 17 SCSI 8 17 N N port definition Glossary 5 NAME controller 3 12 naming controller 8 12 8 13 narrow transfer 7 14 NEW DRV drive status 62 nexus SCS
174. ssage is displayed 21A2 LG 0 Logical Drive NOTICE CHL 1 ID 3 Copy and Replace Completed 8 Follow the same method to copy and replace every member drive with drives of higher capacity as needed You may now perform Expand logical drive to make use of the capacity brought by the new drives and then map the additional capacity to a Host LUN Drive Copying Notification 21A2 LG Logical Drive NOTICE CHL 1 ID 3 Copy and Replace Completed Chapter 3 Viewing and Editing Logical Drives 3 27 3 14 Expanding a Logical Drive The user can make use of unused capacity in a logical drive by expanding the logical drive An unused capacity is usually created by replacing the original members with drives of larger capacity or by adding new drive s to a logical drive After expanding a logical drive the additional capacity is displayed as another partition a new partition FIGURE 3 6 illustrates this idea 4GB 4GB 4GB In Use 2GB Unused 2GB 3 RAID 5 4GB ae Expand Logical Drive eared eal 4GB 408 4GB Eg N partitions 1 Partitions 1 new partition FIGURE 3 6 Logical Drive Expansion Note The new created area will be a new partition RAID levels supported RAID 0 1 3 and 5 The new partition must be mapped to a host LUN in order for the HBA host bus adapter to recognize its presence To add the new partition into an existing logical drive ope
175. supported in the Configuration Service program It is available but rarely used It has been replaced by the use of partitions in logical drives Parameters vices gt gt 06 gt gt gt gt 8 gt 0 TABLE 4 1 Parameters Displayed in the Logical Volume Status Window Parameters Description LV Logical volume number P primary controller S secondary controller ID Logical volume ID number controller generated Size MB Capacity of the logical volume in megabytes LD The number of logical drive s in this logical volume 4 4 4 8 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Viewing and Editing Host LUNs The view and edit Host luns command allows you to map logical groups or logical volumes to the desired host channels Each LG or LV may be mapped more than once to achieve a redundant data path additional software is required Topics covered in this chapter include Planning for 128 LUNs on page 5 1 Mapping Logical Drive Partitions to Host LUNs on page 5 3 Deleting a Host LUN Mapping on page 5 7 CHAPTER 5 Planning for 128 LUNs If you want to create 128 LUNs which is the maximum number of storage partitions which can be mapped for a RAID array you will set up one of the following configurations m Create four host IDs Create four logical drives Partition each logical drive into 32 partitions 4 times 32 128 Map the 128 partitions to the fou
176. t contain information on basic UNIX commands and procedures such as shutting down the system booting the system and configuring devices See one or more of the following for this information Solaris Handbook for Sun Peripherals AnswerBook2 online documentation for the Solaris operating system Other software documentation that you received with your system xii Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Typographic Conventions TABLE P 1 Typeface Meaning Examples AaBbCc123 The names of commands files Edit your login file and directories on screen Use 1s a to list all files computer output You have mail AaBbCc123 What you type when contrasted su with on screen computer output password AaBbCc123 Book titles new words or terms Read Chapter 6 in the User s Guide words to be emphasized Replace command line variables with real names or values These are called class options You must be superuser to do this To delete a file type rm filename The settings on your browser might differ from these settings Shell Prompts TABLE P 2 Shell Prompt C shell machine name machine name Preface xiii C shell superuser Bourne shell and Korn shell Bourne shell and Korn shell superuser Part Number 816 7292 816 7290 816 7293 816 7291 816 7298 816 7722 816 7297 Related Documentation Title Sun StorEdge 3310 SCSI Array Relea
177. tected 0110 CHL _ FATAL ERROR 0111 Controller ALERT Redundant Controller Failure Detected 0114 Controller ALERT Power Supply Unstable or NVRAM Failed Warnings 0107 Memory Not Sufficient to Fully Support Current Config Notifications 0111 Controller NOTICE Redundant Controller Firmware Updated 0181 Controller Initialization Completed 0187 Memory is Now Sufficient to Fully Support Current Config 0189 NVRAM Factory Defaults Restored 0189 NVRAM Restore from Disk is Completed 0189 NVRAM Restore from File is Completed 0 2 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 C 2 SCSI Drive Events Warnings 1101 CHL _ ID _ SCSI Target ALERT Unexpected Select Timeout 1102 CHL _ ID _ SCSI Target ALERT Gross Phase Signal Error Detected 1103 CHL _ ID _ SCSI Target ALERT Unexpected Disconnect Encountered 1104 CHL _ ID _ SCSI Drive ALERT Negotiation Error Detected 1105 CHL _ ID _ SCSI Target ALERT Timeout Waiting for I O to Complete 1106 CHL _ ID _ SCSI Target ALERT SCSI Parity CRC Error Detected 1107 CHL _ ID _ SCSI Drive ALERT Data Overrun Underrun Detected 1108 CHL _ ID _ SCSI Target ALERT Invalid Status Sense Data Received _ 110f CHL _ LIP _ _ Detected 110f CHL _ SCSI Drive Channel Notification SCSI Bus Reset Issued 110f CHL _ SCSI Drive Channel ALERT SCSI Bus Reset Issued 1111 CHL _ ID _ SCSI Target ALERT Unexpected Drive Not Ready 1112 CHL _ ID _ SCSI Drive
178. ted 324 Elevated Temperature Alert 3124 UPS Power Failure Detected Appendix 0 Event Messages 9 0 10 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Glossary The glossary lists acronyms and defines RAID terms found through the documentation It also includes definitions of the operational states for disk drives logical drives and redundant controllers Acronyms American National Standards Institute Channel International Special Committee on Radio Interference Event Monitoring Unit Fibre Channel Arbitrated Loop FC AL is implemented as either a loop or a Fabric A loop can contain up to 126 nodes accessible through only one or two servers Field Replaceable Unit Gigabyte 1 000 000 000 one billion bytes Gigabit Interface Converter A hot swappable input output device that plugs into a Gigabit Ethernet port or Fibre Channel Host Bus Adapter Identifier number International Electrotechnical Commission Just a Bunch of Disks a Sun StorEdge unit with drives and no controllers Local Area Network Logical drive Glossary 1 ANSI CH CISPR EMU FC AL FRU GB GBIC HBA ID IEC JBOD Expansion Unit LAN LD Logical unit number The major and minor device numbers make up the logical unit numbering sequence for a particular device connected to a computer A low noise low power and low amplitude signaling technology that enables data communication between a supported server and storage
179. the same as a local hard disk drive does FIGURE 1 1 Logical Drive Including Multiple Physical Drives The different methods by which logical drives are referred to as RAID levels 1 2 Logical Volume The concept of a logical volume is very similar to that of a logical drive A logical volume is composed of one or several logical drives The member logical drives can be composed of the same RAID level or each of different RAID levels The logical volume can be divided into a maximum of 8 partitions During operation the host sees a non partitioned logical volume or a partition of a partitioned logical volume as one single physical drive 1 2 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 RAID Levels Using a RAID array has the following advantages m Provides disk spanning by weaving all connected drives into one single volume m Increases disk access speed by breaking data into several blocks when reading writing to several drives in parallel With RAID storage speed increases as more drives are added as the channel bus allows Provides fault tolerance by mirroring or parity operation Note Drives on different channels can be included in a logical drive and logical drives of different RAID levels can be used to configure a logical volume Description Striping without fault tolerance provides maximum performance Mirrored or duplexed disks for each disk in the
180. the same procedure to enable or disable each method Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 8 26 Host side SCSI Parameters Select the view and edit Configuration parameters command select Host side SCSI Parameters and press Return to access the following parameters Maximum Queued I O Count LUNs per Host SCSI ID Max Number of Concurrent Host LUN Connection Def 4 Number of Tags Reserved for each Host LUN Connection Peripheral Device Type Parameters Host Cylinder Head Sector Mapping Configuration Overview of SCSI Channel SCSI ID and LUN A SCSI channel SCSI bus can connect up to 15 devices not including the SCSI controller itself when the Wide function is enabled 16 bit SCSI It can connect up to 7 devices not including the controller itself when the Wide function is disabled 8 bit SCSI Each device has one unique SCSI ID Two devices owning the same SCSI ID are not allowed LUN 2 FIGURE 8 5 Filing Cabinet Represents The SCSI ID and File Drawers Represent the Luns From 8 SCSI s point of view a SCSI ID is like a cabinet and the drawers are the LUNs Logical Unit Numbers Each SCSI ID can have up to 32 LUNs Data can be stored into one of the LUNs of the SCSI ID Most SCSI host adapters treat a LUN like another SCSI device Chapter 8 Viewing and Editing Configuration Parameters 7 8 6 8 6 1 8 6 2 Maximum Concurrent Host LUN Connections This function is used
181. timization method is changed Therefore you can not proceed with changing the optimization mode until data is backed up all logical drives deleted and array restarted Therefore think twice before choosing an optimization mode for your controller The controller factory defaults guarantee the optimal performance for most applications How many logical drives and at what RAID level A logical drive is a set of drives grouped together to operate under a given RAID level and appears as a single contiguous storage volume The controller is capable of grouping drives into 8 logical drives each configured on the same or different RAID levels Different RAID levels provide varying degrees of performance and fault tolerance A logical volume can be created but is rarely created due to the greater scalability and ease of use with logical drives Chapter 1 Basic RAID Concepts and Planning 5 Any spare drives Spare drives allow for the unattended rebuilding of a failed drive heightening the degree of fault tolerance If there is no spare drive data rebuild has to be performed manually by replacing a failed drive with a healthy one Drives must be configured and the controller properly initialized before host computer can access the storage capacity Basic Configuration If a hard drive was connected after the controller completes initialization use the Scan scsi drive function under the view and edit scsi Drives in th
182. tion and Service Manual The drive bus configuration determines how drives and drive IDs are assigned to drive channels on the controller a A single bus configuration assigns all 12 disk drive IDs in a controller to one channel typically CH 0 for the RAID array and CH 2 for an Expansion Unit RAID Array Single Bus Configuration Default IDs Doll Wi 3 Wi pall Wi Dill 0 Pa Pe Scere disk 7 Pa ee a a nl oo 1 Disk 5 CHo IDal J Disk 8 cHo ID9 eo J Disk 11 2 L o 0 5 0 aa S peel e O CHO ID2 ll Disk 6 CHO ID5 Il Disk 9 CHO ID10 W Disk12 CHO ID13 ae el Ee EI eee 6 Expansion Unit Single Bus Configuration Default IDs 0 J Disk 4 cH2 100 _ ss J Disk 4 k cH2 iD3 J Disk 7 5 cH2 i08 AR 1 Disk 0 o En 2 J CH2 1D1 i ee J Disk 5 cH2 104 J Disk 8 cH2 1D9 oo 1 Disk 1 CH2 1D19 o oo Q O oo CH2 ID2 I Disk 6 CH2 1D5 Disk 9 CH2 1D10 l Disk12 CH2 1D13 ol td seme gt spo Ug Chapter 7 Viewing and Editing SCSI Channels 7 7 3 a A dual bus configuration assigns 6 disk drive IDs to CH 0 and 6 disk drive IDs to CH 2 in the RAID array and then typically adds an additional 6 disk drive IDs to both C
183. to set the maximum number of concurrent host LUN connections The default setting is 4 LUNs with a predefined range of 1 to 64 Note This function should only be changed if you have more than four logical drives or partitions Increasing this number may increase your performance Maximum concurrent host LUN connection nexus in SCSI is the arrangement of the controller internal resources for use with a number of the current host nexus For example you can have four hosts A B C and D and four host IDs LUNs ID 0 1 2 and 3 in a configuration where host A accesses ID 0 one nexus host B accesses ID 1 one nexus host C accesses ID 2 one nexus host D accesses ID 3 one nexus These connections are all queued in the cache and are called four nexus If there are I Os in the cache with 4 different nexus and another host I O comes with a nexus different than the four in the cache for example host A accesses ID 3 the controller will return busy This occurs with the concurrent active nexus if the cache is cleared it will accept four different nexus again Many I Os can be accessed via the same nexus lt Main Menu gt Quick installation view view Maximum Queued 1 0 Count view LUNs per Host SCSI ID view N view Numb ags Reserved i Peripheral Device Type Parameters Host Cylinder Head Sector Mapping Configuration Fibre Connection Option Loop only Host side Parameters Drive side Parameters Disk
184. troller 8 24 definition 1 3 expansion with logical volume 4 4 glossary Glossary 1 level 0 1 disk striping with mirroring 1 7 level 0 disk striping 1 5 level 1 disk mirroring 1 6 level 3 disk striping with dedicated parity disk 1 8 level 5 striping with interspersed parity 1 9 NRAID disk spanning 1 4 planning considerations 1 15 RAID 0 1 4 concurrent rebuild in 9 RAID 3 0 4 4 RAID 5 0 4 4 RAID 5 1 4 4 RAID 5 5 4 5 RAID 0 1 5 RAID 1 1 6 RAID 3 1 8 RAID 5 1 9 RAID levels controller optimization mode 1 15 described 1 3 explained Glossary 6 Index 6 Sun StorEdge 3310 SCSI RAID Firmware Guide mapping 8 31 sending documentation comments Preface xv serial port connection and setup 2 1 serial port parameters 2 2 SES definition Glossary 2 Set Peripheral Device Entry command 9 5 set slot Number command 6 12 setting a new password 10 3 single bus configurations 7 7 slot number assigning to empty slot 0 deleting 6 11 SCSI target drive 7 16 setting 6 10 Solaris reset baud rate 2 3 spanning 1 4 definition Glossary 6 spare local for logical drive 3 9 spare drives 1 10 1 16 8 9 assigning 4 deleting 6 9 global creating 6 5 local explained 6 4 logical volume 4 3 standby drive definition Glossary 6 STAND BY drive status 2 status logical drive 4 peripheral device 9 2 temperature 9 8 UPS 9 6 voltage 9 8 stripe siz
185. tting it does not provide a means of counting retries In other words the user may continue to retry entering a password until the preset timeout expires unless the default Always Check value is selected The other options available are Disable or setting a value for 1 2 or 5 minutes Leaving this setting at Always Check means that there is no defined timeout and the operator has unlimited opportunities to enter the correct password but each try is validated before access to the firmware s functions is permitted If this function is disabled any entry will provide immediate access to the Main Menu topics despite whether or not a password has been established Note This firmware only allows one password to be entered Subsequently there are not unique timeout options for each potential operator Chapter 8 Viewing and Editing Configuration Parameters 3 8 3 2 8 3 3 gt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters Controller Name Not Set LCD Title Display Controller Logo Password Validation Timeout Always Check Controller Unique Identifier Not Defined SDRAM ECC Disabled Change Password Validation Timeout i Communication Parameters Caching Parameters Host side SCSI Parameters Drive side SCSI P
186. tures Feature Description On line RAID Expansion Supported Mode 1 RAID Expansion add Supported Multiple drives can be added concurrently Drive Mode 2 RAID Expansion Supported Replace members with drives of larger Copy and Replace drives capacity Expand Capacity with no extra Supported in Mode 2 RAID expansion Provide Copy drive bays required and Replace Drive function to replace drives with drives of greater capacity No need to add another enclosure for the extra drives Operating environment No operating environment driver required No software support for RAID Expansion has to be installed for this purpose TABLE A 5 Redundant Controller Features Feature Description Active active redundant Supported controller Synchronized cache for both Supported Through a dedicated synchronizing channel controllers synchronized cache over Fibre loops is supported Write back cache enabled in Yes with synchronized cache connection between redundant controller mode controllers Automatic Failover Yes for all Power PC controllers user s interaction necessary Automatic Failback Yes for all Power PC controllers user s interaction necessary A 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Redundant Controller Features No need to shut down the failed controller before replacing the failed controller Customer s design in hot swap mechanism necessary Support on line hot swap of the f
187. turn on this item to show the cache status and transfer rate Cursor Bar Controller Name Transfer Rate Indicator Gauge Range Cache Status PC Graphic ANSI Mode VT 100 Mode PC Graphic ANSI Color Mode Show Transfer Rate Show Cache Status 22 2 4 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 Main Menu After you have selected the mode on the initial screen and pressed Return on the initial screen the Main Menu is displayed lt Main Menu gt Quick installation view and edi ogical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Gonf surat ion parameters view and edit Peripheral devices system Functions view system Information view and edit Event logs Use the arrow keys to move the cursor bar through the menu items then press Return to choose a menu or Esc key to return to the previous menu screen Navigate the Main Menu Use the arrow keys to move the cursor bar through the menu items then press Return to choose a menu or ESC to return to the previous menu screen gt 4 To select options Return To go to a submenu or to execute a selected option ESC To escape and go back to the previous menu Ctrl L To refresh the screen information Quick Installation RESERVED for special use Caution DO NOT USE this command unless directed by Technical Support 2
188. u and press Return Select the logical drive that has a failed member drive then press Return Select Rebuild logical drive then press Return When prompted to Rebuild Logical Drive select Yes Rebuilding 14 Completed The rebuilding progress will be displayed on the screen When rebuilding has already started or the logical drive has been automatically rebuilt by a local spare drive or global spare drive choose Rebuild progress to view the rebuilding progress Note The rebuild function is displayed only when a logical drive with RAID level 1 3 or 5 has a failed drive member NRAID and RAID 0 configurations provide no data redundancy Chapter 3 Viewing and Editing Logical Drives 3 19 3 10 3 11 Performing a Logical Drive Parity Check If no verifying method is applied to data writes this function can be performed periodically to ensure bad sectors will not cause data loss in the event of drive failure In a RAID unit data is striped across multiple member drives and this function can regenerate parity and prevent bad blocks on drives Lc ID Lv RAID Size MB Status P2 4149A729 NA RAIDS 8 GOOD View scsi drives Delete logical drive Regenerate Logical Drive Parity 55 No a reGenerate parit cOpy and replace drive To check logical drive parity perform the following steps 1 Select view and edit Logical drives from the
189. uilding a disk is the process of reconstructing the data on a disk before it failed Rebuilding can be done only in arrays with data redundancy such as RAID levels 1 3 5 6 or 1 0 See automatic rebuild on page 3 for detailed information on rebuilding For the Rebuild rate refer to background rate on page 3 Disk spanning makes use of the firmware s striping capability to stripe data across two otherwise independent RAID logical drives The two spanned logical drives are presented to the operating environment as one logical drive The advantages of spanning are Supports two simultaneous drive failures in the combined fault tolerant logical drives provided there is one drive failure from each logical drive Improves performance because the number of spindles is increased The disadvantage of spanning is that the RAID overhead for redundant RAID levels is increased since each logical drive handles fault tolerance separately A drive that is marked as a spare to support automatic data rebuilding after a physical drive associated with a logical drive fails For a standby drive to take the place of another drive it must be at least equal in size to the failed drive and all of the logical drives dependent on the failed disk must be redundant RAID 1 3 5 and 6 or 1 0 The current operational status of a disk drive a logical drive or redundant controllers The arrays stores the states of drives logical drives and
190. urat ion parameters view and edit Peripheral devices system Functions view system Information view and edit Event logs The controller can store up to 1000 event logs An event log can record a configuration or operation event as well as an error message or alarm event TABLE 10 1 Example Event Logs 0181 Controller Initialization Completed 2181 LG 0 Logical Drive NOTICE Starting Initialization 2182 Initialization of Logical Drive 0 Completed 2181 LG 1 Logical Drive NOTICE Starting Initialization 2182 Initialization of Logical Drive 2 Completed Chapter 10 System Functions Info and Event Logs 10 7 10 4 To clear the saved event logs scroll the cursor down to the last event and press Return A prompt is displayed Clear Above xx Event Logs Choose Yes to clear the recorded event logs 10 8 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 APPENDIX A Firmware Specifications This appendix contains the firmware specifications in feature summary tables Basic RAID Management Features Description 0 1 0 1 3 5 10 30 and 50 Enhanced RAID Levels supported with logical volume implementation 8 Independent Logical drive configured in different RAID levels can co exist in an array 31 RAID 3 or 5 45 RAID 0 or NRAID 44 RAID 1 Unique Controller Randomly generated logical drive ID Logical drive name user configurable 32 Up to 32 user con
191. uration NVRAM to Disk on page 10 6 Viewing Event Logs on Screen on page 10 7 10 1 CHAPTER 10 10 1 System Functions Select system Functions in the Main Menu then press Return The system Functions menu is displayed Select an item then press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit Scsi channels view and edit Configuration parameters view and edit a ae devices v v Mute beeper change Password Reset controller Shutdown controller Controller maintenance 10 1 1 Muting the Beeper To change the beeper setting perform the following steps 1 Select system Functions in the Main Menu then press Return 2 When the controller s beeper has been activated choose Mute beeper then press Return lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view and edit scsi Drives view and edit 5051 channels view and edit Configuration parameters view and edit AAA devices V Mute Beeper 6 R 5 6 No Yes 3 Select Yes and press Return in the next dialog box to turn the beeper off temporarily for the current event The beeper will still be activated on the next event 10 2 Sun StorEdge 3310 SCSI RAID Firmware Guide
192. w Peripheral Device Status and press Return to view voltage and temperature status of the RAID unit m lt Main Menu gt Quick installation view and edit Logical drives view and edit logical Volumes view and edit Host luns view an view an ITEM VALUE STATUS view an 3 3 384 Operation Normally 5 OV 9 126 Operation Normally v sior 12V 12 199 Operation Normally v Set Defi CPU Temperature 37 0 C Temperature within Safe Range Adju Board1 Temperature 50 5 C Temperature within Safe Range Cont Board2 Temperature 50 0 C Temperature within Safe Range View Peripheral Device Status Voltage and Temperature Parameters The components checked for voltage and temperature will be displayed on screen and will be defined as normal or out of order 9 8 Sun StorEdge 3310 SCSI RAID Firmware Guide October 2002 System Functions Info and Event Logs This chapter contains a discussion of system functions configuration information and describes how to view event logs Topics covered include System Functions on page 10 2 Muting the Beeper on page 10 2 Setting a New Password on page 10 3 Changing Password on page 10 3 Disabling the Password on page 10 4 Resetting Controller on page 10 4 Shutting Down the Controller Restricted Use on page 10 5 Restoring Configuration NVRAM from a File on page 10 5 Saving Config
193. written to one disk drive is simultaneously written to another disk drive If one disk fails the other disk can be used to run the array and reconstruct the failed disk The primary advantage of disk mirroring is 100 data redundancy Since the disk is mirrored it does not matter if one of the disks fails Both disks contain the same data at all times and either can act as the operational disk Disk mirroring provides 100 redundancy but is expensive because each drive in the array is duplicated A Fibre Channel port in a point to point or Fabric connection Refers to the connections and devices that are not in the data path A process whereby the integrity of the redundant data on fault tolerant arrays RAID 1 3 5 and 6 or 1 0 is checked The parity checking procedure on a logical drive recalculates the parity of data stripes in each of the logical drive s RAID stripe sets and compares it with the stored parity If a discrepancy is found an error will be reported and the new correct parity will be substituted for the stored parity A pair of interconnected controller units Expansion units interconnected to the pair of controller units can also be part of the partner group A physical array is a group of physical drives in Configuration Service that participate in one or more logical drives If a group of physical drives is configured into a logical drive without using the entire capacity of the physical drives Configuration Service w

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