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IBM Netfinity ServeRAID User's Guide - ps

1. The ServeRAID adapters and controllers support changing RAID levels as follows e Change two drive RAID level 0 to RAID level 5 by adding one hard disk drive e Change two drive RAID level 1 to RAID level 5 by adding one hard disk drive e Change from RAID level 5 to RAID level O by removing one hard disk drive To change the RAID level of an existing disk array Note If you are migrating to RAID level 0 the last drive defined in the array becomes RDY Chapter 4 Starting and Using the Utility Programs 67 Ae Advanced pull down menu then select Logical Drive Migration A screen similar to the following appears Logical Drive Migration Ea m Logical Drive Migration Options Change Raid Level C Add Physical Drives 1 Click on the Z icon on the Tool Bar or select Manage Disk Arrays from the 2 Select Change RAID Level 3 Click on OK Options 7 x Change array 4 from Raid 5 to Raid 0 x Cancel Logical Raid Size Drive Level MB 0 5 2148 1 5 2152 4 Select a migrating option from the pull down list Note The affected logical drives appear based on the migrating option you select 5 Click on OK to proceed 6 Click on OK to verify the operation 7 Select a Ready RDY drive to add to the array if you are migrating to RAID level 5 Adding a Physical Drive You can expand currently defined arrays by adding one to three new hard disk driv
2. icon on the Tool Bar to switch from the Information mode to the Configuration mode Click on the 2 Continue with one of the following e Using the Configuration Mode on page 11 e Using the Information Mode on page 14 10 IBM ServeRAID Using the Configuration Mode You can use the Configuration mode to create up to eight independent disk arrays for each ServeRAID controller The Configuration mode provides two configuration paths Express Configuration and Custom Configuration Learning about Express Configuration Express Configuration provides a quick and easy path for you to automatically configure your ServeRAID controller This choice creates the most efficient ServeRAID configuration based on the number and capacity of the Ready drives available in your system If four or more Ready drives of the same capacity are available this choice also will define a hot spare drive for the ServeRAID adapter or controller A hot spare drive is a physical drive that is defined for automatic use when a similar drive fails The Express Configuration choice groups up to 16 Ready drives of the same capacity into one disk array and defines one logical drive for each array This choice defines the size of the logical drive based on the amount of free space available and it assigns the highest RAID level possible based on the number of physical drives available For example if your server contains one 1024 MB Ready dr
3. The ServeRAID controller uses this reserved state during logical drive migration LDM If the state of the logical drive is critical you must replace and rebuild the defunct drive See Rebuilding a Defunct Drive on page 99 for more information Physical Drive State Descriptions The following table provides descriptions of the valid physical drive states Drive State Meaning Defunct A physical hard disk drive in the Online Hot Spare or Rebuild state has become defunct It does not respond to commands which means that the ServeRAID controller cannot communicate properly with the drive A hard disk drive in the Defunct state does not necessarily mean that you need to replace the drive Before you replace the drive ensure that 1 All cables are connected properly to the server backplane and to the hard disk drive Also check to ensure that all cables inside the server are connected properly 2 The hot swap drive trays are seated properly in the drive bay 3 The termination for each device on the SCSI channel is set properly 4 Each device on the SCSI channel has its own unique SCSI ID If the hard disk drive still does not function after you perform these steps replace the drive Empty No device is present in the bay Hot Spare A Hot Spare drive is a hard disk drive that is defined for automatic use when a similar drive fails Chapter 2 Using the Configuration
4. Supported operating systems Windows NT OS 2 NetWare DOS OpenServer and UnixWare Command IPSSEND BACKUP Controller Filename Oparm Replace Controller with the ServeRAID controller number 1 to 8 e Filename with the path and file name where the configuration is to be written e Oparm with the optional parameter NOPROMPT to override the user prompt Use the COPYLD command to copy a source logical drive to a target logical drive The size of the target logical drive must be greater than or equal to the size of the source logical drive Supported operating system DOS Command IPSSEND COPYLD Controller Source Target Oparm Replace e Controller with the ServeRAID controller number 1 to 8 e Source with the source logical drive number e Target with the target logical drive number e Oparm with the optional parameter NOPROMPT to override the user prompt Use the RESTORE command to load a configuration from a file stored on a diskette or a hard disk drive The configuration must be a valid configuration file from the BACKUP option on the BM ServeRAID DOS Configuration Utility Program Diskette or IPSSEND This operation overwrites the existing configuration information stored for the ServeRAID adapter or controller Supported operating systems Windows NT OS 2 NetWare OpenServer UnixWare and DOS Command IPSSEND RESTORE Controller Filename Oparm Replace Controller with the ServeRAID controller n
5. ServeRAID POST Messages The following numeric POST messages appear in hexadecimal format 1xxx to 7xXxx Explanation The POST detected an internal error Action Have the system serviced 2601 to 260B Explanation The POST detected an error with the ServeRAID subsystem Action Have the system serviced 2610 Explanation The POST detected an error with the ServeRAID adapter or controller hardware Action Have the system serviced 2620 Explanation The POST detected that a ServeRAID configuration or hard disk error occurred Action Start the BM ServeRAID Configuration CD and view the existing device and configuration information for your ServeRAID subsystem If you can not locate and correct the configuration problem or the failing device or if the problem persists have the system serviced Chapter 5 Solving ServeRAID Problems 93 8xxx to Bxxx Explanation The POST detected an error with the SCSI interface Action Verify that the SCSI cables are correctly connected and the SCSI termination is set properly for each installed SCSI device If you can not locate and correct the SCSI problem or if the problem persists have the system serviced ServeRAID ISPR BCS and ECS Codes 94 IBM ServeRAID Once the ServeRAID POST completes register information appears on the screen in hexadecimal format as follows Hardware ISPR aaaa BCS bb ECS cc ISPR displays the four digit Interrupt Stat
6. 87 ServeRAID Adapter and Controller Messages 88 Rebuilding a Defunct Drive 2 00000 eee 99 INGO rt canes Sere he ee hots age od A eae Selo wan dene we ede 101 Copyright IBM Corp 1996 1998 iii iv IBM ServeRAID About This Section This section provides the information needed to configure an IBM ServeRAID controller This section also contains instructions for installing and using the ServeRAID utility programs How This Section Is Organized Chapter 1 Getting Started contains an installation overview and general information about RAID technology Chapter 2 Using the Configuration Programs explains how to use the IBM ServeRAID Configuration Program and the IBM ServeRAID Mini Configuration Program You can refer to the information in this chapter when configuring one or more devices attached to a ServeRAID adapter or controller Chapter 3 Installing Device Drivers and Utility Programs contains the instructions needed to install the ServeRAID device drivers and programs provided on the CDs that came with your server Chapter 4 Starting and Using the Utility Programs contains instructions for starting and using the ServeRAID Administration and Monitoring IPSSEND and IPSMON programs You can use these operating system specific programs to maintain and monitor your ServeRAID subsystem Chapter 5 Solving ServeRAID Problems describes the ServeRAID POST erro
7. ERASEEVENT on page 80 All hard disk drives contain unique identifiers such as the drive serial number and manufacturer During configuration the ServeRAID adapter or controller stores this information ServeRAID Startup Messages 88 IBM ServeRAID During power on self test POST the ServeRAID adapter or controller compares the stored configuration information to the configuration that is actually present If a discrepancy exists one or more status messages appear after POST completes but before the operating system loads Notes 1 When the ServeRAID adapter or controller requires your input a list of function keys will appear below the message 2 Where the Action information tells you to start the IBM ServeRAID configuration program insert the BM ServeRAID Configuration CD into the CD ROM drive then restart the server The action column also provides general information about the message 3 Where SID and ch appear in these messages SID shows the SCSI ID for the device and ch shows the channel to which the device is attached 4 Where m or n appears in these messages a number will appear in the actual message This following pages list in alphabetical order messages associated with the ServeRAID subsystem A new drive was installed Explanation When the ServeRAID adapter or controller detects a new drive that is not part of the current configuration the following message appears Following ne
8. If you disable Automatic Initialization the ServeRAID Configuration Program will not initialize each logical drive by writing zeros to the first 1024 sectors of the logical drive when it is created You still must initialize all newly defined logical drives before storing data If you disable the synchronization feature and the level of firmware being used by the ServeRAID adapter or controller does not support the auto synchronization feature you still must synchronize all RAID level 5 logical drives before storing data Actions All choices available from the Actions pull down menu also are available from the pop up lists that appear when you use the right mouse button and click on the object in the Main Tree The following choices appear on the Actions pull down menu when you select a ServeRAID controller from the Main Tree e Configure the ServeRAID Controller This choice is available in the Information mode only It appears on the pull down menu when there are Ready drives and logical drive slots still available for the ServeRAID controller e Configure for Clustering This choice is available in the Information mode only You can select this choice to define the ServeRAID controller for use in a high availability snared disk cluster environment Detailed instructions for using the clustering features are provided in the IBM Netfinity High Availability Cluster Solution Installation and User s Guide You can obtain a copy of this man
9. 2 The hot swap drive trays are seated properly in the drive bay 3 If you have not already attempted to rebuild the drive try rebuilding it See Rebuilding a Defunct Drive on page 99 for more information After you perform these steps if the hard disk drive does not function properly replace the drive F6 Modify Press this key to modify the configuration to match the current drive location You might remove the hot swap drives from the server for security or maintenance reasons If you replace the drives but install them in different drive bays you can press F6 to accept the new locations and the ServeRAID adapter or controller will update the configuration Controller is not responding to commands No logical drives are installed Explanation The ServeRAID adapter or controller is not operational Action Have the system serviced Error Cannot disable this adapter BIOS Explanation The ServeRAID adapter or controller was unable to prevent an extra copy of its BIOS code from being stored on the server This condition occurs when the server contains multiple ServeRAID adapters or controllers Action This is an information message No action is required Following drives not responding old state new state ch SID Explanation One or more drives did not respond to the ServeRAID adapter or controller For example the ServeRAID adapter or controller detected a new drive at an unconfigured SCSI ID and the
10. Action Have the system serviced Bxxx Explanation A SCSI bus interface error occurred Action Have the system serviced Basic and Extended Configuration Status Codes BCS ECS Explanation and Possible Recovery Action Code Code Explanation The ServeRAID adapter or controller is not functioning not not properly in in 3 Action H h table table ctio ave the system serviced 00 01 Explanation Invalid flash configuration Action Start the IBM ServeRAID Configuration CD and follow the instructions that appear on the screen If no instructions appear or if the problem persists have the system serviced 00 02 Explanation Invalid NVRAM configuration Action Start the IBM ServeRAID Configuration CD and follow the instructions that appear on the screen If no instructions appear or if the problem persists have the system serviced 00 03 Explanation Invalid flash and NVRAM configuration Action Start the IBM ServeRAID Configuration CD and follow the instructions that appear on the screen If no instructions appear or if the problem persists have the system serviced Chapter 5 Solving ServeRAID Problens 95 96 IBM ServeRAID BCS ECS Explanation and Possible Recovery Action 01 08 Explanation No configuration was found in drives or Online Rebuild drives are not responding Action Press F4 F5 F7 or F10 01 18 Explanation No configuration was found in drives
11. It is possible to run multiple background server components with each component using a different TCP IP port however to avoid damage to your data you must restrict your administration activities to one remote client and use the other remote clients for monitoring purposes only Programs for OS 2 and NetWare The ServeRAID program files available for the OS 2 and NetWare operating systems consist of the Administration and Monitoring program device drivers background server components and the IPSSEND and IPSMON command line programs See IPSSEND and IPSMON Programs on page 52 for more information The Administration and Monitoring Program files for OS 2 and NetWare run only on the system containing a ServeRAID adapter or controller stand alone mode These ServeRAID programs provide a limited subset of the functions provided in the WIN32 Based program and they install automatically when you use the instructions in this chapter to install the ServeRAID device driver for OS 2 or NetWare A good way to use these operating system specific programs is to run the OS 2 or NetWare versions of the Administration and Monitoring Program files locally on the server while using the WIN32 Based program on a remote Windows NT or Windows 95 client This method enables you to take advantage of the more advanced administration and monitoring functions provided in the WIN32 Based program Programs for OpenServer and UnixWare The ServeRAID progra
12. Some operating systems have size limitations for logical drives Before you save the configuration you might want to verify that the size of the logical drive is appropriate for your operating system See your operating system documentation for more detailed information c Typically the first logical drive defined on the first ServeRAID adapter or controller found by system BIOS during startup will be your startup boot drive 8 If free space is available and you want to define another logical drive click on the Add Logical Drive button in the Main Panel 9 Repeat steps 6 7 and 8 for each logical drive that you want to define then continue with step 10 10 Click on the Next button 11 Review the information that appears on the Configuration Summary screen Note To change the configuration click on a Modify icon button 12 Click on the Apply button to accept and save the configuration 13 If you have not already done so install your operating system See the server documentation or the documentation provided with your operating system for more information After you install your operating system see Chapter 3 Installing Device Drivers and Utility Programs on page 31 or the installation instructions provided with your server for information about installing the ServeRAID device drivers and utility programs Using the Information Mode 14 IBM ServeRAID You can use the Information mode to view the configu
13. The Device Event Log contains event counters for each attached physical device These counters include e Parity An unexpected event while transferring data on the SCSI bus This usually indicates a problem with the SCSI cable connectors or terminators e Soft A SCSI device detected a check condition event e Hard The SCSI controller detected an unexpected event The controller is the most likely cause e Misc The ServeRAID adapter or controller detected an event that was most likely caused by the device The Device Event Log also provides predictive failure analysis PFA alerts which indicate that the device has signaled the ServeRAID adapter or controller that it might fail in the near future Supported Operating Systems Windows NT OS 2 NetWare OpenServer UnixWare and DOS Command IPSSEND GETEVENT Controller Options Replace e Controller with the ServeRAID controller number 1 to 8 e Options with one of the following DEVICE for Device Event Log SOFT for the ServeRAID adapter or controller Soft Event Log or HARD for the ServeRAID adapter or controller Hard Event Log The SELFTEST command is used to direct an adapter or a device to perform its self test Supported operating systems DOS Command IPSSEND SELFTEST Controller Options Replace Chapter 4 Starting and Using the Utility Programs 81 STARTDELY e Controller with the ServeRAID controller number 1 to 8 e Options with AD for the Serve
14. To install the ServeRAID WIN32 Based program 1 Turn on the system and allow Windows NT or Windows 95 to start 2 Insert the IBM ServeRAID Administration and Monitoring Diskette into the diskette drive 3 Click on Start click on Run then type the following a setup Note The a represents the letter assignment for the diskette drive 4 Press Enter then follow the instructions that appear on the screen to complete the installation Refer to Chapter 4 Starting and Using the Utility Programs on page 57 for more information about the WIN32 Based program Installing ServeRAID Device Drivers This section provides the instructions for installing the device drivers for Windows NT NetWare OS 2 OpenServer and UnixWare The OS 2 and NetWare Administration and Monitoring Program files and background server components install automatically when you use the instructions in this section to install the ServeRAID device drivers for OS 2 and NetWare The Windows NT UnixWare and OpenServer background server components install automatically when you use the instructions in this chapter to install the ServeRAID device drivers for Windows NT UnixWare and OpenServer When using Go to Windows NT Installing Device Drivers for Windows NT NetWare Installing Device Drivers for NetWare on page 36 OS 2 Installing Device Drivers for OS 2 on page 40 OpenServer Installing Device Drivers for OpenServer on page 43
15. When the system asks for the kernel environment to be rebuilt enter y The system will respond with a successful message 10 Use shutdown to bring down the system then restart the system Using an IDE CD ROM Drive to Install OpenServer Files This section contains instructions for installing files for OpenServer 5 0 0 OpenServer 5 0 2 and OpenServer 5 0 4 when using an IDE CD ROM Drive Installing the Files for OpenServer 5 0 0 To install files for OpenServer 5 0 0 using an IDE CD ROM drive 1 Type the following at the BOOT prompt restart ahslink ATAPI ipsraid Srom wd 0 0 0 0 2 Insert the ATAPI BTLD diskette when prompted then press r to replace the wd driver The fields for the ATAPI CDROM are Srom wd c d b where c primary 0 or secondary 1 IDE EIDE controller d master 0 or slave 1 device LUN of device always 0 with ATAPI or wd driver b BUS of device always 0 with ATAPI or wd driver Installing the Files for OpenServer 5 0 2 and 5 0 4 To install files for OpenServer Versions 5 0 2 or 5 0 4 using an IDE CD ROM drive 1 Type the following at the BOOT prompt restart link ipsraid Srom wd 0 0 0 0 Note The ATAPI BTLD which includes the wd driver is included in OpenServer 5 0 2 and 5 0 4 The fields for the ATAPI CDROM are Srom wd c d b where c primary 0 or secondary 1 IDE EIDE controller d master 0 or slave 1 device LUN of device always 0 with ATAPI or wa dr
16. e Select View Controller and PCI Information from the Advanced Functions menu Record the slot number for the ServeRAID adapter or controller then press Esc three times to return to the controller selection screen g Repeat step 3c through step 3f until you record the slot number for each ServeRAID adapter or controller that appears on the selection screen 4 Turn off the system then remove all ServeRAID adapters and controllers except the first one on your list Note If one of the ServeRAID controllers that you need to remove is on the system board you must do one of the following 46 IBM ServeRAID e f the CD ROM drive that you are using to install your operating system is attached to the integrated ServeRAID controller disconnect or remove all disk drives attached to the integrated controller e If only disk drives are attached to the integrated controller disconnect the SCSI cable from the ServeRAID connector on the system board See the label inside the server cover for the location of the ServeRAID connector 5 Remove all other non ServeRAID IDE and SCSI disk storage adapters and controllers Note If one of the disk storage controllers that you need to remove is on the system board you must do one of the following e f the CD ROM drive that you are using to install your operating system is attached to the integrated disk storage controller disconnect or remove all disk drives attached to the integra
17. logical drives defined for the controller This choice does not change any of the ServeRAID adapter or controller settings such as the stripe unit size rebuild rate and so on from their current or customized values 3 Click on OK Scanning for New Drives You can scan for new devices attached to the ServeRAID adapter or controller Cel To scan for new drives click on the icon on the Tool Bar or select Scan For New Drives from the Advanced pull down menu Using the Monitoring Functions This section contains instructions for using the Administration and Monitoring Program to monitor the ServeRAID adapter and controller status information event logs logical drive information and physical device information Monitoring the Adapter Status Information A green or red light on the screen indicates the currently active adapter button Green indicates that the ServeRAID adapter or controller is responding and red indicates that it is not responding If there is more than one ServeRAID adapter or controller in the system click once on the appropriate adapter or controller to make it active You can then monitor the status by clicking on the active adapter button on the Main screen of the Administration and Monitoring Program Note You might need to use the scroll bar and scroll down to see all of the items that appear on this screen Descriptions of the information that appears on the screen are as follows Adapter Number T
18. number of BIOS code updates 28 settings changing 20 troubleshooting 88 using the mini configuration program 26 ServeRAID controller information viewing 15 SETSTATE command 79 setting physical device states 70 setting Bootable CD ROM 29 simultaneous responses 3 small icons 21 soft event logged 74 solving problems 87 standby drive 20 STARTDELY command 82 starting administration and monitoring program 42 57 58 background server component 50 configuration program 9 IPSMON program 83 IPSSEND program 76 Mini Configuration 26 startup messages 88 93 state drive blocked 18 changing 70 critical 18 19 definitions 19 defunct 19 106 IBM ServeRAID state drive continued empty 19 hot spare 19 logical 16 18 migrating 19 offline 19 okay 19 online 20 physical drives 19 ready 20 setting 70 standby 20 standby hot spare 20 system 19 stripe unit size 2 3 13 15 23 24 striping data 3 supported RAID levels 3 switching modes 10 SYNCH command 78 synchronizing automatic 15 data scrubbing 15 forced 22 logical drives 66 manually 24 25 system information panel 15 system name 15 system performance improve 3 system state 19 T TCP IP 33 technology RAID 3 text messages 88 throughput 3 tool bar 8 20 transfer speed SCSI 18 26 transfer parallel 3 troubleshooting disk array 88 ServeRAID 88 type controller 15 U unattended mode 27 UNBLOCK command 79 unblocking a logical drive 18 25 67 93 99 understa
19. write cache mode 24 channel information panel 18 viewing information 18 clearing configuration event log 8 20 21 client server mode setting 59 cluster partner Host ID 15 clustering 15 21 22 27 codes configuration status 94 95 command line parameters using 50 83 compatibility mode BIOS 27 component background server 33 configuration alert options 61 BCS codes 95 BIOS settings 28 101 configuration continued clearing event log 21 clustering 22 codes configuration status 95 copy from drive to controller 23 custom path 11 12 13 drag and drop icons 13 ECS codes 95 event log 8 20 21 express path 11 for clustering icon 21 icons drag and drop 13 information mode 14 information viewing 14 initialize 22 28 Netfinity alert options 61 paths 11 program screens 8 program exiting 21 program starting 9 quick path express 11 saving event log 21 ServeRAID controller 21 22 status codes 95 summary screen 14 viewing 27 configuring disk arrays 11 24 63 context sensitive help 21 controller information panel 15 controller type 15 copy configuration from drives to controller 23 copying adapter configuration to drives 72 copying drive configuration to adapter 71 COPYLD command 77 creating array 11 24 array icon 21 disk arrays 11 24 63 logical drive 24 65 creation date logical drive 16 critical states 18 19 70 71 custom configuration path considerations 12 learning abou
20. 19 b dynamic linker dlvr_audit Cannot open dev zero for file lib libprot so 1 You can ignore Message A no action is required But if Message B appears you must press Enter when prompted to continue the installation 6 Keep the IBM ServeRAID Device Drivers for SCO Operating Systems Diskette readily available You will need it to configure the device driver into the link kit For additional information about adding a BTLD at boot time refer to Using Boot Time Loadable Drivers in the SCO OpenServer Handbook Adding BTLD after the Initial Installation 1 Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Drivers for SCO Operating Systems Diskette 2 Start the server in system maintenance mode and log in as root 3 Type instal lpkg 4 Press Enter then select the diskette drive in which you will insert your installation diskette 5 Insert the IBM ServeRAID Device Drivers for SCO Operating Systems Diskette when prompted 6 When prompted for the name of the package type ipsraid 7 Press Enter then relink the kernel as described in Relinking the kernel in the SCO OpenServer Handbook by entering the following commands cd etc conf cf d link_unix 8 After the kernel rebuilds the following message appears The UNIX kernel has been rebuilt Do you want this kernel to boot by default To continue enter y The system backs up the old kernel by moving UNIX to UNIX OLD 9
21. Drive 4 1500 MB Free Space 2800 MB Free Space 4200 MB Diski Disk2 Disk Diskt Disk2 Disks Disk4 Before LDM After LDM For example an array uses three 2150 MB hard disk drives that are configured as two RAID level 5 logical drives one 500 MB and 1000 MB and 2800 MB of free space If you use the logical drive migration procedure and add a 2150 MB hard disk drive to proportionally increase the size of the disk array the end result will be two RAID level 5 logical drives one 750 MB and 1500 MB and 4200 MB of free space To add a physical device Wha 1 Click on the Je icon on the Tool Bar or select Manage Disk Arrays from the Advanced pull down menu then select Logical Drive Migration A screen similar to the following appears Logical Drive Migration x m Logical Drive Migration Options C Change Raid Level Add Physical Drivefs 2 Select Add Physical Drive s A prompt appears requesting that you select from 1 to 3 Ready RDY drives to add to the existing array 3 Click on the appropriate RDY drives on the Main screen An X appears beside the selected drives 4 When you are finished selecting drives click on OK i es mi Aii inr C kema the cay c al gcd daaa A Fjo f lapa fai iim Hem Sica peA Drm Li Pacey pay 5 eat Pal Chapter 4 Starting and Using the Utility Programs 69 70 IBM ServeRAID 5 Select one of the available expansion options fro
22. NVRAM Action Press F9 to remove the NVRAM cache controller from the configuration or press F10 to exit without change NVRAM Cache Controller Replacement Explanation The ServeRAID controller detects that the NVRAM cache controller is defective Action Press F8 if you replaced the NVRAM cache controller or press F10 if you have not replaced the NVRAM cache controller Recoverable configuration error Explanation The configuration data stored in NVRAM does not match the configuration data stored in the EEPROM Action 1 Press Ctrl Alt Del to restart the system 2 Start the ServeRAID Mini Configuration Program See Using the ServeRAID Mini Configuration Program on page 26 for instructions 3 Select Advanced Functions from the Main Menu then select Import Configuration from Drive s See Using the Advanced Configuration Functions on page 28 for more information WARNING n logical drives are critical n logical drives are offline Explanation One or more hard disk drives have failed Action Replace the defunct drives as soon as possible to prevent data loss Your server has an error due to a Blocked Logical Drive Explanation One or more logical drives are in a blocked state A blocked logical drive cannot be accessed See Logical Drive State Descriptions on page 18 for additional information Action Press F4 to unblock the logical drive or press F5 to continue without unblocking
23. Okay e The ServeRAID adapter or controller adds a hot spare or a standby hot spare drive to the array and changes its state from Hot Spare or Standby Hot Spare to Rebuilding Chapter 5 Solving ServeRAID Problens 99 Automatically Rebuilding the Defunct Drive The ServeRAID adapter or controller will rebuild a defunct drive automatically when all of the following conditions exist e The physical drive that failed is part of a RAID level 1 or RAID level 5 logical drive e A hot spare or standby hot spare drive with a capacity equal to or greater than the capacity of the defunct drive is available the moment the drive fails When multiple hot spare drives are available the ServeRAID adapter or controller searches for a hot spare drive of the appropriate size The smallest drive that meets this requirement enters the Rebuild state If no hot spare or standby hot spare drives are available the rebuild operation will start the moment you replace the defective drive Note If you physically replace the drive and the new drive does not appear in the Physical Drives branch of the Main Tree you must scan for new or removed Ready drives e No rebuild synchronization or logical drive migration operation is in process 100 IBM ServeRAID Index A about this section iii Actions pull down array choices 24 configure the controller choices 22 hot spare drive choices 25 logical drive choices 24 physical drive choices 25
24. Programs 19 Drive State Meaning Online The drive is Online It is functioning properly and is part of an array Rebuilding The drive is being rebuilt For more information on rebuilding a drive refer to Rebuilding a Defunct Drive on page 99 Ready The ServeRAID controller recognizes a Ready drive as being available for definition Standby A Standby drive is a hard disk drive that the ServeRAID controller has spun down Standby Hot Spare A Standby Hot Spare is a Hot Spare drive that the ServeRAID controller has spun down If an Online drive becomes Defunct and no suitable Hot Spare drive is available a Standby Hot Spare drive of the appropriate size automatically spins up and enters the Rebuild state Changing the ServeRAID Configuration Settings To change the settings 1 Click on the plus box next to the object in the Main Tree to expand the tree 2 Click on the icon in the Main Tree for the ServeRAID controller array logical drive hot spare drive or physical drive that you want to change 3 Click on Actions in the File Menu then make a selection from the pull down menu or Using the right mouse button click on the object in the Main Tree then make a selection from the pop up list See Using the Menu Bar on page 21 for descriptions of the choices available from the Actions pull down menu Using the Tool Bar Descriptions of the quick path icons provided on the To
25. also press F5 when you must remove a drive RAID level 1 and RAID level 5 logical drives are present and performance in a degraded mode is acceptable The ServeRAID adapter or controller will assign the drive a state of defunct DDD but the server can complete startup However the array will remain in Critical mode and the potential for data loss will exist until you replace and rebuild the defunct drive To prevent the loss of data replace and rebuild the defunct drive in a timely manner Note A hard disk drive in the DDD state does not necessarily mean that you need to replace the drive Before you replace the drive ensure that 1 All cables are connected properly to the backplane and to the hard disk drive Also ensure that all cables inside the server are connected properly 2 The hot swap drive trays are seated properly in the drive bay 3 If you have not already attempted to rebuild the drive try rebuilding it See Rebuilding a Defunct Drive on page 99 for more information After you perform these steps if the hard disk drive does not function properly replace the drive F10 Continue Press this key to continue without change to the configuration Configured drives are not in the configured location Explanation This message will be preceded by the previous messages and the F5 key choice because configured drives were not found in the configured location When the ServeRAID adapter or controller detects that a
26. array that contains RAID level 1 or level 5 logical drives and the array is being rebuilt Because the RAID level 0 logical drives cannot be rebuilt the data stored on the RAID level 0 logical drives is damaged and should not be accessed After you issue the UNBLOCK command you must re create or restore the data previously stored on the RAID level 0 logical drives Chapter 4 Starting and Using the Utility Programs 79 Supported operating systems Windows NT OS 2 NetWare OpenServer UnixWare and DOS Command IPSSEND UNBLOCK Controller DriveNum Replace e Controller with the ServeRAID controller number 1 to 8 e DriveNum with the logical drive number 0 to 7 Problem lsolation and Debug Commands The IPSSEND problem isolation and debug commands include the following 80 IBM ServeRAID CERTIFY ERASEEVENT FMSTATUS Use the CERTIFY command to verify the media of a hard disk drive If the program finds a media error it reassigns the sectors A summary of reassignments and PFA errors appears upon completion of the verification Supported operating system DOS Command IPSSEND CERTIFY Controller Channel SID Replace e Controller with the ServeRAID controller number 1 to 8 e Channel with the channel number for the device 1 2 or 3 e SID with the SCSI ID for the device 0 to 15 Use the ERASEEVENT command to clear all logged entries in the designated event log See GETEVENT help for information about the con
27. controller automatically assigns the IBM Enhanced RAID level 1 to the array The Enhanced RAID level 1 combines mirroring with data striping This RAID level stripes data and copies of the data across all the drives in the array As with the standard RAID level 1 the data is mirrored and the capacity of the logical drive is 50 of the physical capacity of the grouping of hard disk drives in the array The Enhanced RAID level 1 requires a minimum of three drives and depending upon the stripe unit size supports a maximum of eight or 16 drives The following illustration shows data arranged in an array with three hard disk drives The logical drive is assigned the Enhanced RAID level 1 Notice that the first stripe is the data stripe and the second stripe is the mirror copy of the first data stripe but shifted one drive Za ff E cy _ v Data Stripe 1 Block 1 Block 2 Block 3 Mirror Stripe 1 Block 3 Block 1 Block 2 Data Stripe 2 Block 4 Block 5 Block 6 Mirror Stripe 2 Block 6 Block 4 Block 5 RAID Level 5 RAID level 5 requires a minimum of three hard disk drives This RAID level stripes data and parity across all drives in the array When an array is assigned RAID level 5 the capacity of the logical drive is reduced by one drive for data parity storage RAID level 5 is generally the most desirable choice because it offers both data protection and increased throughput RAID level 5 gives you higher capacity th
28. drive For example if you group three 1 GB drives and one 2 GB drive into an array the total capacity of the array is 1 GB times 4 or 4 GB not the 5 GB physically available Similarly if you group three 2 GB drives and one 1 GB drive into an array the total capacity of that array is 4 GB not the 7 GB physically available e A hot spare drive is a disk drive that is defined for automatic use in the event of a drive failure The hot spare drive must be of equal or greater capacity than the drive that it is intended to replace If a physical drive fails and it is part of a RAID level 1 or RAID level 5 logical drive the ServeRAID controller automatically starts to rebuild the data on the hot spare drive e You can include a maximum of 16 physical drives in an array when the stripe unit size is set to 8 KB the default setting or 16 KB and you can include a maximum of 8 physical drives in an array when the stripe unit size is set to 32KB or 64KB See Interleave Depth and Stripe Unit Size on page 3 and page 23 for more information Using Custom Configuration To use the Custom Configuration path 1 Click on the ServeRAID controller that you want to configure in the Main Tree 2 Click on the Custom Configuration radio button 3 Click on the Next button 4 Using the right mouse button click on the drive or SCSI Channel icons in the Main Tree to select the drives that you want to add to your arrays delete from your arrays o
29. drive detected e Adapter or controller is not responding to commands Alert Options The Netfinity Manage alerts allow system administrators who are using the IBM Netfinity Manager Program to configure the ServeRAID Administration and Monitoring Program to notify the Netfinity Alert Manager of various activities occurring on the server To configure the settings for the Netfinity Manager alerts 1 Open the Options pull down menu 2 Click on Alert Options 3 Click on Netfinity Alerts A screen similar to the following appears Chapter 4 Starting and Using the Utility Programs 61 NetFinity Alerts x MV Enable NetFinity Alerts M Alert Information Messages IV Alert Warning Messages IV Alert Fatal Messages Send Test Alert Cancel i Note The default setting for the Netfinity Manager alerts is disabled 4 To enable all Netfinity Manager alerts click on the check box next to Enable Netfinity Alerts To disable any of the Netfinity Manager alerts a Ensure there is a check in the check box next to Enable Netfinity Alerts b Click on the check box next to the specific alert or alerts you want disabled To test the Netfinity Manager integration click on the Send Test Alert button This will send a Netfinity Manager alert to the Alert Manager with a test message When you enable Netfinity Manager Alerts the ServeRAID adapter or controller will relay the following three types of messages to the Netfinit
30. drive is not part of the current configuration This might also occur if the ServeRAID adapter or controller detected that a configured drive is missing Action Select F5 to accept the new state that the ServeRAID adapter or controller will assign to the drive For example the ServeRAID adapter or controller will assign the drive a state of defunct DDD or empty EMP A hard disk drive in the defunct state does not necessarily mean that you need to replace the drive Before you replace the drive ensure that 1 All cables are connected properly to the backplane or system board and to the hard disk drive Also ensure that all cables inside the server are connected properly 2 The hot swap drive trays are seated properly in the drive bay 3 If you have not already attempted to rebuild the drive try rebuilding it See Rebuilding a Defunct Drive on page 99 for more information After you perform these steps if the hard disk drive does not function properly replace the drive For more information see Configured drives are missing on page 88 Following drives found in new location old ch old SID gt new ch new SID Explanation POST found that the location of one or more drives does not match the stored configuration information Action For more information see Configured drives are not in the configured location on page 89 Following new drives found old state new state ch SID Explanatio
31. driver installs restart the system Installing an HBA Diskette File Using SCOAdmin 1 oO ON OO FK O Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Drivers for SCO Operating Systems Diskette Insert the IBM ServeRAID Device Drivers for SCO Operating Systems Diskette into the diskette drive Start the SCOAdmin utility program Select Software_Management Select Application Installer Select Disk_A from the Install From tab Click on the Update View button When the icon labeled ips appears in the window click on Install After the device driver installs restart the system Chapter 3 Installing Device Drivers and Utility Programs 49 Starting the Background Server Components To start the background server components e lf you are using OS 2 or Windows double click on the IPSRAID ADMIN MONITOR icon on the desktop e f you are using OpenServer or UnixWare 1 Make sure you are logged on as root a If you are not type su b When prompted enter the root password 2 Start the background server component daemon running in the background To do this type ipsadm amp 3 Press Enter e f you are using Novell NetWare 1 Load the remote component To do this type load ipsadm nim 2 Press Enter Notes a To load the NetWare Administration program with NetWare SFT III installed load IPSADM NLM in the mirrored server engine The ServeRAID adapters and controlle
32. information is inconsistent the IPSSEND program will repair it automatically Supported operating systems Windows NT OS 2 NetWare OpenServer UnixWare and DOS Command IPSSEND SYNCH Controller Scope DriveNum Replace e Controller with the ServeRAID controller number 1 to 8 e Scope with Drive for a single logical drive e DriveNum with the logical drive number 0 to 7 Error Recovery Commands The IPSSEND error recovery commands include the following 78 IBM ServeRAID GETSTATUS Use the GETSTATUS command to display the current logical drive status for the most recent rebuild synchronization or logical drive migration The status includes such information as the remaining size of the logical drive the percentage completed for the function in process or information about the most recently completed logical drive function Supported operating systems Windows NT OS 2 NetWare OpenServer UnixWare and DOS Command IPSSEND GETSTATUS Controller REBUILD SETSTATE UNBLOCK Replace Controller with the ServeRAID controller number 1 to 8 Use the REBUILD command to rebuild a designated disk drive This command is valid for disk arrays that contain one or more logical drives that are in the critical CRT state Progress is indicated during the rebuild operation but you can also use the GETSTATUS command to obtain progress information about the rebuild Supported operating systems Windows NT OS 2 NetWar
33. is the default NetWare 3 12 directory If you are using a different path be sure to specify the same path throughout the installation process Press Enter then from the operating system prompt in the SERVER 312 directory type a Note The a represents the drive assignment for the diskette drive that contains the ServeRAID diskette Press Enter Then type cd netware Press Enter Then type install Press Enter Then follow the instructions that appear on the screen to complete the ServeRAID device driver and program installation Installing the Files while Installing NetWare 4 1X Use the instructions provided in the NetWare 4 1X manual along with the following instructions to install the ServeRAID device driver background server component and Administration and Monitoring Program files while installing NetWare Version 4 1X 1 38 IBM ServeRAID Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Driver Diskette Use the instructions provided in the NetWare manual to begin the installation When the Choose the Server Drivers Disk Driver prompt appears during the install process insert the IBM ServeRAID Device Driver Diskette into the diskette drive Select Select additional or modify selected Disk LAN drivers If IPSRAID appears select Deselect a selected driver Select Select an additional driver then press the Ins Insert key to add an unlisted new devic
34. previously configured drive is present but the drive is in a new location the following message appears Following drives found in new location old ch old SID gt new ch new SID Where old ch is the channel that matches the existing drive configuration information old SID is the SCSI ID that matches the existing drive configuration information Chapter 5 Solving ServeRAID Problems 89 90 IBM ServeRAID new ch is the channel where the drive is now located new SID is the SCSI ID where the drive is now located For example 1 5 gt 1 14 In this example the message indicates that the drive from Channel 1 SCSI ID 5 is now located at Channel 1 SCSI ID 14 The drive might have been physically moved to the new drive bay Action Press one of the following keys F4 Retry Press this key after correcting a problem For example press F4 after you move the hard disk drive to its previously assigned location F5 Accept Press this key to accept the new state that the ServeRAID adapter or controller will assign to the drive For example the ServeRAID adapter or controller will assign the drive a state of defunct DDD or empty Note A hard disk drive in the DDD state does not necessarily mean that you need to replace the drive Before you replace the drive ensure that 1 All cables are connected properly to the backplane and to the hard disk drive Also ensure that all cables inside the server are connected properly
35. text and numeric messages that might appear during startup This chapter also includes some basic information about rebuilding a defunct drive In addition to the information provided in this chapter you might want to use the ServeRAID IPSSEND program to help isolate ServeRAID problems See Using the IPSSEND Program on page 76 and Problem lsolation and Debug Commands on page 80 for information about using the IPSSEND program This chapter contains ServeRAID Adapter and Controller Messages 88 ServeRAID Startup Messages 2 00 222005 88 ServeRAID POST Messages 0 000050025 93 ServeRAID ISPR BCS and ECS Codes 94 Rebuilding a Defunct Drive 2 00000 eee 99 Guidelines for the Rebuild Operation 99 General Information about the Rebuild Operation 99 Automatically Rebuilding the Defunct Drive 100 Copyright IBM Corp 1996 1998 87 ServeRAID Adapter and Controller Messages This section lists the ServeRAID messages that might appear during system startup The ServeRAID adapters and controllers provide a Device Event Log that collects statistics on the number and types of events that occur on a selected hard disk drive After correcting a problem with the disk array clear the log so that you can identify any subsequent errors quickly For information about clearing the event log see
36. the channel to which they are attached External Channel 1 connector is Bus Number 1 external Channel 2 connector is Bus Number 2 and internal Channel 3 connector is Bus Number 3 To configure the default nondisk devices during the initial installation 1 Redefine the default tape drive in the initial bootstring For example to install the IPSRAID BTLD and redefine the tape drive go to the BOOT prompt and type link Stp ips 0 1 2 0 The numbers in parentheses represent the Host Adapter Number the Bus Number the SCSI ID and the LUN respectively 2 When prompted for the location of the installation CD change the Bus Number and SCSI ID as required Adding BTLD at Boot Time To install the ServeRAID device driver for OpenServer Version 5 0 X 1 Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Drivers for SCO Operating Systems Diskette 2 At the BOOT prompt type link 3 Press Enter then when asked for the name of the package to load type ipsraid 4 Press Enter 5 After the kernel loads but before it runs link prompts you to insert the IBM ServeRAID Device Drivers for SCO Operating Systems Diskette While the installation program copies the files one or both of the following messages might appear Chapter 3 Installing Device Drivers and Utility Programs 43 44 IBM ServeRAID Messages a Extracting BTLD distribution for ipsraid etc uadmin getdev b ips No such device error
37. the following steps 1 Learn about RAID technology The Understanding RAID Technology section in this chapter contains general information about RAID technology If you already are familiar with the IBM implementation of RAID technology you might want to start your installation with step 2 2 Use the ServeRAID Configuration Programs to configure your disk arrays Chapter 2 Using the Configuration Programs explains how to use the IBM ServeRAID Configuration Program and the IBM ServeRAID Mini Configuration Program You can refer to the information in this chapter or the online information in the configuration program when configuring one or more devices attached to a ServeRAID adapter or controller Attention The default setting for the stripe unit size is 8 KB If you want to use a different setting be sure to change the stripe unit size before you store data in the logical drives After you store data in the drives you cannot change the stripe unit size without destroying data in the logical drives See Interleave Depth and Stripe Unit Size on page 3 and page 23 for more information 3 Install your operating system ServeRAID device drivers and ServeRAID utility programs You can skip this step if you are installing multiple ServeRAID adapters and you already installed your operating system and the most current versions of the ServeRAID device drivers and utility programs See the information provided wit
38. then insert the IBM ServeRAID Device Driver Diskette into the diskette drive 5 At the operating system prompt type a Note The a represents the drive assignment for the diskette drive that contains the ServeRAID diskette 6 Press Enter Then type cd netware 7 Press Enter Then type install 8 Press Enter Then follow the instructions that appear on the screen to complete the ServeRAID device driver and program installation Installing the Files after Installing NetWare 3 12 The ServeRAID device driver for NetWare IPSRAID HAM is in the NetWare directory on the BM ServeRAID Device Driver Diskette You can use the INSTALL BAT file which is also in the NetWare directory on the diskette to copy all of the required files to your server directory The INSTALL BAT file will modify the STARTUP NCF file so that it will load the required NetWare modules Use the instructions provided in the NetWare 3 12 manual along with the following instructions to install the ServeRAID device driver background server component and Administration and Monitoring Program files after installing NetWare Version 3 12 1 Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Driver Diskette 2 Insert the IBM ServeRAID Device Driver Diskette into the diskette drive Chapter 3 Installing Device Drivers and Utility Programs 37 Go to the default NetWare 3 12 directory To do this type cd server 312 Note The SERVER 312
39. using 57 programs installing 34 N name resolution background server component 52 name system 15 Netfinity alert options 61 NetWare 3 12 device drivers installing 37 4 1X device drivers installing 38 39 device drivers 36 programs for 33 network operating system installing 2 network settings 59 numeric messages 93 O obtaining updates 32 offline state 19 okay state 19 online state 20 OpenServer device drivers 43 45 programs for 33 Options pull down menu 22 59 OS 2 administration and monitoring starting 42 device drivers 40 41 programs for 33 P panel array information 16 channel information 18 controller information 15 hot spare drive information 17 logical drive information 16 physical drive information 17 system information 15 parallel transfer 3 parity event logged 74 parity space 14 16 64 paths express and custom 11 PFA error 17 18 61 physical drives adding 68 defunct 19 empty 19 hot spare 19 information panel 17 information monitoring 75 number of viewing 16 online 20 ready 20 rebuilding 70 scanning for 21 24 26 73 physical drives continued setting states 70 standby 20 standby hot spare 20 states 19 viewing information 17 polling options 61 POST messages 88 93 preface iii problems solving 87 product or model number drive 17 18 program Administration and Monitoring 32 configuration starting 9 configuration using 11 exiting the configuration program 21 for O
40. while Installing UnixWare To install the ServeRAID files while installing UnixWare 7 0 1 2 3 4 Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Drivers for SCO Operating Systems Diskette Use the instructions provided with UnixWare to begin the installation When a message appears asking if you want to install any HBA diskettes insert the IBM ServeRAID Device Drivers for SCO Operating Systems Diskette then select Install HBA diskette Use the instructions provided in the UnixWare manual to complete the normal installation process Installing the Files after Installing UnixWare Use the following instructions to install the ServeRAID files after you install UnixWare or use these instructions to update a previously installed ServeRAID file with a newer version You can use the UnixWare Pkgadd or the UnixWare SCOAdmin utility program to install the files Installing an HBA Diskette File Using Pkgadd 1 Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Drivers for SCO Operating Systems Diskette Insert the IBM ServeRAID Device Drivers for SCO Operating Systems Diskette into the diskette drive Type pkgadd d dev dsk f0t Press Enter 5 When the message Insert diskette into Floppy Drive 1 appears press 7 Enter When the message Installation of IBM ServeRAID SCSI IHV HBA ips was successful appears type q Press Enter then after the device
41. 5 level 5 5 19 64 65 migrating 19 logging messages 51 logical drive administration 63 65 blocked 18 28 boot first defined 12 14 creating 13 14 65 creation date 16 critical states 19 date created 16 defining 13 14 65 description 3 guidelines for rebuilding 99 104 IBM ServeRAID logical drive continued increasing its size 68 69 information panel 16 information monitoring 74 initializing 25 66 migrating state 19 migration 67 number of viewing 16 slots available 22 states 16 18 synchronizing 24 66 system state 19 unblocking 18 25 28 67 with bad stripes 28 Main Menu Administration and Monitoring Program 58 Configuration Program 8 Mini Configuration program 26 27 main panel 8 main tree 8 menu bar 8 21 merge group 17 messages basic configuration status register codes 94 95 extended status register codes 94 95 interrupt status port register codes 94 logging 51 numeric 93 ServeRAID 88 text startup 88 migrating state 19 migrating logical drives 67 mini configuration menu importing configuration from drives 28 initializing configuration 28 resetting ServeRAID adapter 28 viewing status 27 viewing the configuration 28 mirroring disk 4 mode configuration 9 11 custom configuration 12 express configuration 11 information 9 14 switching 10 modify button 12 monitoring adapter status information 73 device event logs 74 logical drive information 74 physical device information 75 program
42. 93 94 ServeRAID 88 startup messages 88 93 94 95 event log clearing or saving 20 configuration clearing or saving 8 21 device 74 event viewer 9 example enhanced RAID level 1 5 express configuration 11 RAID level O 4 RAID level 1 5 RAID level 5 6 screen configuration program 8 stripe unit size 3 exiting the configuration program 21 expanding the array 68 express configuration path learning about 11 using 11 F features hot swap rebuild 15 99 RAID levels 3 File pull down menu 21 firmware version 15 FMSTATUS command 80 forced synchronization 22 FORMAT command 81 free space 16 G general information rebuilding 99 general options 59 60 GETCONFIG command 82 GETEVENT command 81 GETSTATUS command 78 H hard disk capacities influence on arrays 12 copying adapter configuration 72 copying configuration to adapter 71 hot spare 13 scanning for 21 24 26 73 status 19 hard event logged 74 help online 8 21 26 Host ID 15 hot spare drive 13 description 13 information panel 17 number of viewing 16 removing 13 standby 20 state 19 viewing information 17 hot swap PCI 9 hot swap rebuild 15 74 83 99 how this section is organized iii HSREBUILD command 83 icons changing size View pull down 21 configure for clustering 21 configure the ServeRAID controller 21 create an array 21 drag and drop 13 event viewer 9 help 21 save the configuration event log 20 scan for drives 21 tool bar 8 20 ID Host 15 i
43. About Select this choice to view the version number and copyright information for the ServeRAID Configuration Program This choice is available in both the Information and Configuration modes Using the ServeRAID Mini Configuration Program 26 IBM ServeRAID The ServeRAID Mini Configuration Program is a quick way to display the current settings for the ServeRAID adapter or controller You also can use this program to perform a limited set of the configuration functions without using the ServeRA D Configuration CD To access the Mini Configuration program 1 Turn on the server If the server already is turned on press Ctrl Alt Del 2 When the ServeRAID Mini Configuration prompt appears press Ctrl i 3 If your system contains more than one ServeRAID adapter or controller a selection screen will appear To continue a Use the Up Arrow 1 or Down Arrow key to select an adapter or controller b Press Enter If your system contains only one ServeRAID adapter or controller or after you select a ServeRAID adapter or controller the Main Menu appears Descriptions of the choices available from the Main Menu of the Mini Configuration program are as follows e View Controller Status shows the current status of the ServeRAID adapter or controller See Viewing the Controller Status for more information e View Configuration shows the current configuration information for the ServeRAID adapter or controller See V
44. F4 F5 F6 or F10 07 48 Explanation Online Rebuild drives are not responding and unidentified drives were found Action Press F4 F5 or F10 Chapter 5 Solving ServeRAID Problems 97 98 IBM ServeRAID BCS ECS Explanation and Possible Recovery Action 07 4c Explanation Online Rebuild drives are not responding a drive was found at the incorrect SCSI ID and unidentified drives were found Action Press F4 F5 F6 or F10 07 58 Explanation Online Rebuild and Hot Spare Standby Hot Spare drives are not responding and unidentified drives were found Action Press F4 F5 or F10 07 5C Explanation Online Rebuild and Hot Spare Standby Hot Spare drives are not responding a drive was found at the incorrect SCSI ID and unidentified drives were found Action Press F4 F5 F6 or F10 07 68 Explanation Online Rebuild and Ready Standby drives are not responding and unidentified drives were found Action Press F4 F5 or F10 07 6C Explanation Online Rebuild and Ready Standby drives are not responding a drive was found at the incorrect SCSI ID and unidentified drives were found Action Press F4 F5 F6 or F10 07 78 Explanation Online Rebuild Ready Standby and Hot Spare Standby Hot Spare drives are not responding and unidentified drives were found Action Press F4 F5 or F10 07 7C Explanation Online Rebuild Ready Standby and Hot Spare Standby Hot Spa
45. F8 Explanation A drive was imported from another system and it has valid configuration and Online Rebuild Hot Spare Standby Hot Spare and Ready Standby drives are not responding and unidentified drives were found Action Press F4 F5 F7 or F10 07 08 Explanation Online Rebuild drives are not responding Action Press F4 F5 or F10 07 oc Explanation Online Rebuild drives are not responding and a drive was found at the incorrect SCSI ID Action Press F4 F5 F6 or F10 07 18 Explanation Online Rebuild and Hot Spare Standby Hot Spare drives are not responding Action Press F4 F5 or F10 07 1C Explanation Online Rebuild and Hot Spare Standby Hot Spare drives are not responding and a drive was found at the incorrect SCSI ID Action Press F4 F5 F6 or F10 07 28 Explanation Online Rebuild and Ready Standby drives are not responding Action Press F4 F5 or F10 07 2C Explanation Online Rebuild and Ready Standby drives are not responding and a drive was found at the incorrect SCSI ID Action Press F4 F5 F6 or F10 07 38 Explanation Online Rebuild Ready Standby and Hot Spare Standby Hot Spare drives are not responding Action Press F4 F5 or F10 07 3C Explanation Online Rebuild Ready Standby and Hot Spare Standby Hot Spare drives are not responding and a drive was found at the incorrect SCSI ID Action Press
46. IBM Netfinity ServeRAID User s Guide IBM Netfinity ServeRAID User s Guide ii IBM ServeRAID Contents About This Section 2 0 0 000 2c v How This Section Is Organized aaa aaa a v Notices Used in This Section aaa aaa a v Chapter 1 Getting Started aaa aaa 0 002 200 0004 1 Installation Overview aaa aaa ee 2 Understanding RAID Technology aoaaa a 3 Chapter 2 Using the Configuration Programs 7 Using the ServeRAID Configuration Program 2 8 Using the ServeRAID Mini Configuration Program 26 Chapter 3 Installing Device Drivers and Utility Programs 31 IBM ServeRAID Utility Programs 2 2 2 02 00220 200 4 32 Administration and Monitoring Program 2 2 ee ee 32 Installing the ServeRAID WIN32 Based Program 34 Installing ServeRAID Device Drivers 2 200 35 IPSSEND and IPSMON Programs 200 20005 52 Chapter 4 Starting and Using the Utility Programs 57 Starting the Administration and Monitoring Program 58 Using the Administration and Monitoring Program 59 Starting the IPSSEND Program 2 2 a 76 Using the IPSSEND Program 2 2020020022 epee 76 Starting the IPSMON Program 2 2 2 2 000000 020005 83 Using the IPSMON Program aoaaa aaa a 83 Chapter 5 Solving ServeRAID Problems
47. ND and IPSMON Programs IPSSEND and IPSMON are advanced command line programs that you can use to manage your ServeRAID adapters and controllers These utility programs are provided on the IBM ServeRAID Command Line Programs Diskette This ServeRAID diskette is available from the ServerGuide Diskette Factory or from the following address on the World Wide Web http www pc ibm com support See page 32 for the instructions needed to access the IBM support page You can use the IPSSEND program to view the configuration of a ServeRAID adapter or controller rebuild a defunct drive initialize logical drives synchronize logical drives and perform other functions You can use the IPSMON program to monitor a ServeRAID adapter or controller for defunct drives predictive failure analysis PFA warnings rebuild operations synchronizations and logical drive migrations This program can log a message to the monitor to a file or to both the monitor and a file whenever activities occur You can use the IPSSEND and IPSMON programs with the following operating systems e IBM OS 2 Warp Server and OS 2 LAN Server e Novell NetWare 3 12 and 4 1X e Microsoft Windows NT e SCO OpenServer 5 0 X e SCO UnixWare 7 0 You also can use the IPSSEND program with DOS but DOS requires the ASPI Manager Installing IPSSEND and IPSMON for OS 2 Windows NT or NetWare To install these programs for OS 2 Windows NT or NetWare 1 After you create an IBM Serv
48. Press Enter Using the IPSMON Program When you start this monitoring program it immediately begins polling all ServeRAID adapters and controllers for specific conditions If a condition being monitored is found this program logs a message to the monitor to a file or to both the monitor and a file The IPSMON program uses command line parameters to determine where to log the messages If you need help you can type the IPSMON command for a list of valid parameters If you start this program without any command line parameters the IPSMON program will log the messages to the IPSMON LOG file and the messages will not appear on the monitor Chapter 4 Starting and Using the Utility Programs 83 84 IBM ServeRAID The valid parameters for IPSMON are e f filename Use the f parameter to specify the name of the file in which to record messages The default file name is IPSMON LOG e S Use the s parameter to display messages on the standard output usually the monitor Use the parameter to obtain a current list of valid parameters After you start the IPSMON program the program will continuously poll the ServeRAID adapters and controllers until you take one of the following actions e f you are using Windows NT or OS 2 press Ctrl C e If you are using NetWare type unload ipsmon at the system console e f you are using OpenServer or UnixWare press the Del key to cancel the program During operation the
49. RAID adapter or controller self test or PD Channel SID for the Device self test Note Channel represents the drive channel and SID represents the SCSI ID for the device Use the STARTDELY command to set the number of drives in a group to start up simultaneously and to set the delay in seconds between the startup of these groups of drives Supported operating systems DOS Command IPSSEND STARTDELY Controller Options Replace e Controller with the ServeRAID controller number 1 to 8 e Options with a question mark to display concurrent drive startup count Drive Count 1 to 16 and Delay Time 3 to 15 seconds RAID Configuration Commands The IPSSEND RAID configuration commands include the following 82 IBM ServeRAID DRIVEVER GETCONFIG Use the DRIVEVER command to display the vendor ID microcode version and serial number of a SCSI device The IPSSEND program retrieves this information directly from the device Supported operating systems Windows NT OS 2 NetWare OpenServer UnixWare and DOS Command IPSSEND DRIVEVER Controller Channel SID Replace e Controller with the ServeRAID controller number 1 to 8 e Channel with the channel number for the device 1 2 or 3 e SID with the SCSI ID for the device 0 to 15 Use the GETCONFIG command to display the ServeRAID adapter or controller configuration information This includes information about the firmware version initiator ID and rebuild rate logi
50. UnixWare Installing Device Drivers for UnixWare on page 46 Installing Device Drivers for Windows NT This section provides two sets of instructions for installing the ServeRAID device driver one that you can use during the initial Windows NT installation and one that you can use if Windows NT already is installed The background server components for Windows NT 3 5X and Windows NT 4 0 install automatically when you use the instructions in this chapter to install the ServeRAID device drivers Installing the Files while Installing Windows NT To install the ServeRAID files while installing Windows NT 1 Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Driver Diskette 2 Insert the Windows NT boot diskette into the diskette drive or insert the bootable Windows NT CD into the CD ROM drive then restart the server Chapter 3 Installing Device Drivers and Utility Programs 35 3 When the message Setup is inspecting your computer s hardware configuration appears press the F6 key 4 After loading some files Windows NT displays a screen that allows you to manually specify an adapter When this screen appears press S to specify additional devices 5 When prompted in the next window select Other from the list 6 When prompted to insert the Manufacturer supplied hardware support disk insert the BM ServeRAID Device Driver Diskette into the diskette drive then press Enter 7 Select IBM ServeRAID Ad
51. abled you no longer need to synchronize RAID level 1 and RAID level 5 logical drives on a weekly basis Auto Synchronization shows the setting for this feature The auto synchronization feature always appears as Enabled when the level of ServeRAID firmware in use supports this feature See page 25 for more information Clustering shows the current setting Enabled or Disabled for this feature ServeRAID Controller Host ID appears only when the controller is part of a shared disk cluster Chapter 2 Using the Configuration Programs 15 16 IBM ServeRAID Cluster Partner Host ID appears only when the ServeRAID controller is configured for use in a shared disk cluster Number of Arrays shows the total number of arrays 1 to 8 defined for this ServeRAID controller Number of Logical Drives shows the total number of logical drives 1 to 8 defined for this ServeRAID controller Number of Hot Spare Drives shows the total number of hot spare drives defined for this ServeRAID controller Array Information Panel When you select the Arrays icon from the Main Tree general information about all configured arrays such as size free space and number of logical drives in each array appears in the Main Panel on the right When you select a specific array from the Main Tree the following information appears in the Main Panel on the right Array Letter shows the letter A through H assigned to the array Array Size in MB shows the t
52. ad ahead status and creation date for each logical drive Using the Advanced Configuration Functions 28 IBM ServeRAID You can select the Advanced Functions choice to reset the ServeRAID adapter or controller initialize the configuration import the configuration information from the drives configure BIOS settings and view the adapter controller or PCI information When you select the Advanced Functions choice from the Main Menu the following choices appear on the screen Attention Be careful when making selections from this menu If you change the configuration you might lose data e Initialize Configuration lets you reset the configuration You will not have access to any data stored on the logical drives attached to the selected ServeRAID adapter or controller This choice deletes the existing configuration information sets all functional hard disk drives attached to the controller to the Ready state and deletes all logical drives defined for the controller This choice does not change any of the ServeRAID adapter or controller settings such as the stripe unit size rebuild rate and so on from their current or customized values e Import Configuration from Drive reads the most common configuration from the drives in the system and copies it to the ServeRAID adapter or controller NVRAM and EEPROM module e Configure BIOS Settings lets you modify the BIOS settings such as the Bootable CD ROM and INT13 Extensions s
53. amaged data You must either re create install or restore the data from the most recent backup disk or tape To unblock a blocked drive 1 Select the blocked logical drive from the Main screen of the Administration and Monitoring Program 2 Click on Unblock to unblock the drive 3 Initialize all unblocked logical drives before using them See Initializing Logical Drives on page 66 4 Restore the data to the drive from your most recent backup disk or tape Logical Drive Migration Administration The logical drive migration LDM feature dynamically changes the current logical drive structure You can use this procedure to change the RAID level increase the free space in a disk array or change the size of a logical drive To use the LDM feature you must have at least two logical drives available one free FRE logical drive and one source logical drive that is in the okay OKY state During the LDM procedure the ServeRAID adapter or controller changes the state of the FRE logical drive to SYS then temporarily uses the SYS drive to perform the migration When the migration procedure completes the ServeRAID adapter or controller changes the state of the SYS drive back to FRE Change RAID Levels LE You can change migrate the RAID levels of currently defined logical drives To use the Change RAID Level feature all of the logical drives within the array must be the same RAID level
54. an RAID level 1 but RAID level 1 offers better performance Chapter 1 Getting Started 5 6 IBM ServeRAID The following illustration shows data arranged in an array with three hard disk drives The logical drive is assigned RAID level 5 Notice that the storage of the data parity also is striped and it shifts from drive to drive g g g cy ee EJ Stripe 1 Block 1 Block 2 Parity 1 2 Stripe 2 Block 3 Parity 3 4 Block 4 Stripe 3 Parity 5 6 Block 5 Block 6 Stripe 4 Block 7 Block 8 Parity 7 8 Chapter 2 Using the Configuration Programs This chapter provides instructions for using the IBM ServeRAID Configuration and Mini Configuration Programs You can use the information in this chapter and the online information in the configuration programs when configuring one or more devices attached to a ServeRAID adapter or controller You must use the IBM ServeRAID Configuration Program to configure your disk arrays before you install an operating system or store data on the hard disk drives attached to the ServeRAID adapter or controller This chapter contains Using the ServeRAID Configuration Program 8 Starting the Configuration Program 0 000000200 9 Using the Configuration Mode 00000200 ea 11 Using the Information Mode 0 2222004 14 Changing the ServeRAID Configuration Settings 20 Using the Tool Bar 2 a a a a a E E a E E
55. anced RAID level 1 and RAID level 5 Chapter 1 Getting Started 3 4 IBM ServeRAID RAID Level 0 RAID level O stripes the data across all the drives in the array This offers substantial soeed enhancement but provides for no data redundancy RAID level O provides the largest capacity of the RAID levels offered because no room is taken up for redundant data or data parity storage The following illustration shows data arranged in an array of three hard disk drives defined as one RAID level 0 logical drive Notice that the data is striped across all the drives in the array but no copies of the data or parity information is stored Z _ E Cy Stripe 1 Block 1 Block 2 Block 3 Stripe 2 Block 4 Block 5 Block 6 Stripe 3 Block 7 Block 8 Block 9 A hard disk failure within the array results in loss of data in the logical drive assigned RAID level 0 but only in that logical drive If you have logical drives assigned RAID level 1 or level 5 in the same array they will not lose data Note The ServeRAID controller automatically assigns RAID level 0 to all logical drives in an array containing only one hard disk drive When you replace a failed drive the ServeRAID controller can rebuild all the RAID level 1 and RAID level 5 logical drives automatically onto the replacement hard disk drive However any data stored in a failed RAID level 0 logical drive is lost Though the risk of data loss is present you might wan
56. apter then press Enter A message similar to the following will appear Setup is loading files IBM ServeRAID Adapter 8 When prompted press Enter to continue 9 Use the instructions provided in the Windows NT manual to complete the normal installation process 10 After you complete the installation be sure to apply the latest Service Pack Installing the Files after Installing Windows NT To install the ServeRAID files after Installing Windows NT 1 Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Driver Diskette Insert the BM ServeRAID Device Driver Diskette into the diskette drive From the Windows NT Start Menu select Settings then select Control Panel Select SCSI Adapter then click on the Drivers tab Click on Add then click on Have Disk In the Copy manufacturer s files from field type a nt O oa A W PP N Click on OK then in the next dialog box click on OK again 8 When a message appears asking if you want to use the currently installed device driver or if you want to install a new one click on New 9 When prompted to enter the full path to the IBM ServeRAID files type a nt 10 Click on Continue then after the device driver installs restart the system Installing Device Drivers for NetWare 36 IBM ServeRAID This section provides instructions for installing the ServeRAID device drivers while installing NetWare 3 12 or 4 1X and instructions for ins
57. arity soft PFA or hard events The most likely cause of a miscellaneous event is a cable termination or connector problem Note Under normal operating conditions the event logs will contain entries that are not errors Monitoring the Logical Drive Information You can monitor the logical drive information by clicking on the desired logical drive button on the Main screen of the Administration and Monitoring Program Descriptions of the information that appears on the Logical Drive Information screen are as follows Logical Drive Number The number of the logical drive Blocked Part of Array Part of Merge Group Date Created State Size RAID Level Write Policy NVRAM Battery Backup Read Ahead Stripe Unit Size Number of Chunks Stripe Order No The logical drive is accessible Yes The logical drive is not accessible The identifier of the logical drive disk array A B C D E F G H The identifier of the logical drive merge group 1 through 254 The date the logical drive was created The current state see Logical Drive State Descriptions on page 18 for more information The size in megabytes RAID level 0 1 or 5 WT Write through WB Write back Enable The battery backup cache is On Disable The battery backup cache is Off Off Disk Read Ahead is inactive On Disk Read Ahead is active The size of each stripe unit per hard disk 8 16 32 64 The numb
58. ata on the drives attached to your ServeRAID adapters and controllers 1 Install all ServeRAID adapters that you intend to use in your system 2 Using the ServeRAID Configuration Program create all of your arrays and define all of your logical drives Chapter 3 Installing Device Drivers and Utility Programs 47 3 10 11 12 48 IBM ServeRAID Make a list of all of the ServeRAID adapters and controllers including the order and slot number installed in the system To do this a Turn on the server b When the ServeRAID Mini Configuration prompt appears press Ctrl i When a system contains more than one ServeRAID adapter or controller a selection screen appears c The menu lists the ServeRAID adapters and controllers in order Select the first ServeRAID adapter or controller from the menu d Select Advanced Functions from the Main Menu e Select View Controller and PCI Information from the Advanced Functions menu Record the slot number for the ServeRAID adapter or controller then press Esc three times to return to the controller selection screen g Repeat step 3c through step 3f until you record the slot number for each ServeRAID adapter or controller that appears on the selection screen Turn off the system then remove all ServeRAID IDE and SCSI disk storage adapters and controllers except the one attached to the drive where you intend to install UnixWare Note If one of the disk st
59. aximum of eight logical drives When you create an array you group hard disk drives into one storage area You can define this storage area as a single ogical drive or you can subdivide it into several logical drives Each logical drive appears to the operating system as a single physical hard disk drive If you have only one array you can define it as a single logical drive or you can divide it into several logical drives Typically the first logical drive defined on the first ServeRAID adapter or controller found by the basic input output system BIOS during startup will be your startup boot drive If you have two or more arrays each array can be one logical drive or you can divide each array into multiple logical drives as long as the total number of logical drives for all of the arrays does not exceed eight Note Independent of the RAID logical drives most operating systems allow you to partition the logical drives further e The optimal way to create arrays is to use hard disk drives that have the same capacity 2 When referring to hard disk drive capacity GB means approximately 1000000000 bytes total user accessible capacity may vary depending on operating environment 12 IBM ServeRAID Hard disk drive capacities influence the way you create arrays Drives in an array can be of different capacities 1 GB or 2 GB for example but RAID controllers treat them as if they all have the capacity of the smallest disk
60. ber for the drive e Drive Firmware Level shows the current level of microcode in use for the drive e PFA Error indicates the status Yes or No for predictive failure alerts Yes indicates that PFA errors were detected and that you should plan to replace the device No indicates that PFA errors were not found Channel Information Panel When you select a SCSI Channel icon from the Main Tree the following information appears in the Main Panel on the right Number of Drives shows the number of physical drives currently attached to the SCSI channel e SCSI Initiator ID shows the initiator ID for the SCSI channel e SCSI Transfer Speed shows the current SCSI transfer setting Optimal Ultra2 SCSI UltraSCSI Fast SCSI 2 or SCSI 2 for the entire channel See page 26 for more information Drive States This section provides descriptions of the logical and physical drive states Logical Drive State Descriptions The following table provides descriptions of the valid logical drive states Drive State Meaning Blocked During a rebuild operation the ServeRAID controller sets the state of any RAID level 0 logical drives associated with a failed array to the Blocked state then it reconstructs the data that was stored in RAID level 1 and RAID level 5 logical drives After the Rebuild operation completes you can unblock the RAID level 0 logical drives and access them once again However the logical drive might con
61. ble from the Menu and Tool Bars to customize settings for your ServeRAID controllers See Using the Information Mode on page 14 for more information The ServeRAID Configuration Program is provided on the IBM ServeRAID Configuration CD packaged with the ServeRAID adapter and it also is provided on the ServerGuide CD CD 1 that comes with some IBM server models Notes 1 If you are configuring a ServeRAID controller on a system board see the installation instructions and CDs provided with your server for information about starting the configuration programs for the server 2 To gain access to the ServeRAID Configuration or Mini Configuration programs you must restart the server To start the configuration program 1 Insert the IBM ServeRAID Configuration CD or the ServerGuide CD 1 into the CD ROM drive then turn on the server Chapter 2 Using the Configuration Programs 9 One of the following screens will appear e lf the configuration program detects unconfigured ServeRAID controllers the program starts in the Configuration mode and a screen similar to the following appears FE ha Server BEET SEPAERS SE pot contigurecl Click on the Cancel button to switch from the Configuration mode to the Information mode e f the configuration program detects that all ServeRAID controllers in the server are configured the program starts in the Information mode and a screen similar to the following appears ou
62. cal drive status RAID level and size and physical device type SCSI ID and PFA error Supported operating systems Windows NT OS 2 NetWare OpenServer UnixWare and DOS Command IPSSEND GETCONFIG Controller Options Replace e Controller with the ServeRAID controller number 1 to 8 e Options with one of the following AD for adapter or controller information LD for logical drive information PD for physical device information AL default for all information HSREBUILD Use the HSREBUILD command to set the ServeRAID adapter or controller hot swap rebuild feature on Use a question mark to display the current status of the hot swap rebuild feature Supported operating systems Windows NT OS 2 NetWare OpenServer UnixWare and DOS Command IPSSEND HSREBUILD Controller Options Replace e Controller with the ServeRAID controller number 1 to 8 e Options with ON to enable the hot swap rebuild feature or to display the status of the hot swap rebuild feature Starting the IPSMON Program You can run the IPSMON program from the operating system command line To start the IPSMON program e f you are using OS 2 or Windows NT 1 Type c ipsadm ipsmon 2 Press Enter Note The c represents the drive where OS 2 or Windows NT is installed e f you are using Novell NetWare 1 From the console type load ipsmon 2 Press Enter e f you are using SCO OpenServer or UnixWare 1 Type usr bin ipsmon 2
63. ctual logical drive size might be slightly different from what you type in the Requested Space field The RAID level and the number of hard disk drives determine the size of the logical drive For example a disk array consisting of three 1 GB hard disk drives with a requested RAID level 0 logical drive of 1000 MB will actually contain only 999 MB because the data is striped across all three drives with 333 MB on each drive 6 Click on OK to create the disk array Deleting Disk Arrays All data and programs on the logical drives in the disk array will be lost during this procedure ga Deleting a disk array deletes all logical drives that are defined in that disk array To delete a disk array 1 Click on the RE on the Tool Bar or select Manage Disk Arrays from the Advanced pull down menu then select Delete Disk Array A screen similar to the following appears Delete Disk Array x Array ID 8 Cancel 2 Select the desired disk array ID from the pull down list Attention Before proceeding ensure that you have backed up any data and programs that you want to save 3 Click on OK to delete the disk array Note For some operating systems deleting a disk array and its associated logical drives might change the drive letter assignments of the remaining drives when you restart the system Logical Drive Administration This section provides the information needed to create logical drives initialize an
64. d synchronizing logical drives or access blocked logical drives Creating Logical Drives Depending upon the stripe unit size being used you can combine a maximum of 8 or 16 physical drives into each logical drive Ko Each ServeRAID adapter or controller supports a maximum of 8 logical drives To create a logical drive 1 Click on the icon on the Tool Bar or select Manage Logical Drive from the Advanced pull down menu then select Create Logical Drive A screen similar to the following appears 2 Select the desired disk array ID from the pull down list 3 Select the appropriate RAID level from the pull down list Note The number of hard disk drives in the array determines the RAID levels available for the array e If the array contains one hard disk drive you can select only RAID level 0 for the logical drive e lf the array contains two hard disk drives you can select RAID level O or RAID level 1 for the logical drive e lf the array contains three or more hard disk drives you can select RAID level 0 RAID level 1 or RAID level 5 for the logical drive 4 Enter the Requested Space in the entry field The ServeRAID program uses the maximum available space for the selected RAID level to calculate the default value that it assigns Note The actual logical drive size may be slightly different from what you type in the Requested Space field The RAID level and the number of hard disk drives de
65. d NetWare 0 0 00000000 Programs for OpenServer and UnixWare Installing the ServeRAID WIN32 Based Program Installing ServeRAID Device Drivers 2 0200 Installing Device Drivers for Windows NT Installing Device Drivers for NetWare 2 Installing Device Drivers for OS 2 aoaaa ee a Installing Device Drivers for OpenServer 2 Installing Device Drivers for UnixWare 2004 Starting the Background Server Components Using the Background Server Components IPSSEND and IPSMON Programs 2002004 Installing IPSSEND and IPSMON for OS 2 Windows NT or NetWare Installing IPSSEND and IPSMON for OpenServer Installing IPSSEND and IPSMON for UnixWare Installing IPSSEND for DOS 0220200 Copyright IBM Corp 1996 1998 31 IBM ServeRAID Utility Programs This section contains information about the device drivers and utility programs available for the ServeRAID adapters and controllers Obtaining ServeRAID Updates IBM periodically makes updated versions of the ServeRAID device drivers and utility programs available from the IBM Support page on the World Wide Web In addition to the updated device drivers and utility programs there are also two ServeRAID command line programs IPSSEND and IPSMON availab
66. d completion time for a rebuild operation to a file e Clear Configuration Event Log Select this choice to erase the event information stored in the Configuration Event Log e Exit Select this choice to exit from the ServeRAID Configuration Program View The View pull down menu contains the following choices in both the Information and Configuration modes e Small Icons This is the default setting When you select this Chapter 2 Using the Configuration Programs 21 22 IBM ServeRAID choice small icons appear in the Main Tree on the left and the Main Panel on the right e Large Icons Select this choice to display large icons in the Main Tree on the left and the Main Panel on the right e Options Select this choice to change the Initialization and Synchronization mode as follows Basic This is the default setting When this mode is Enabled the configuration program automatically initializes each new logical drive and prevents access to the manual initialization and synchronization functions This choice also forces the synchronization of all new RAID level 5 logical drives attached to older ServeRAID adapter or controller models that do not support the auto synchronization feature Advanced When Enabled this choice lets you select to automatically initialize new logical drives and force the synchronization of all new RAID level 5 logical drives before exiting the ServeRAID Configuration Program Attention
67. d controllers do not support Windows 95 However you can run the WIN32 Based program remotely on a Windows 95 client attached to a remote server running the OS 2 NetWare Windows NT UnixWare or OpenServer operating system Use the instructions in this section to install the WIN32 Based program on the Windows 95 client e f your network operating system is OS 2 NetWare OpenServer or UnixWare you must run the ServeRAID WIN32 Based program remotely in the client server mode Other requirements for this environment include A Windows NT or Windows 95 client running the IBM ServeRAID WIN32 Based program Use the instructions in this section to install the WIN32 Based program A network adapter with proper cabling for access to the remote systems The TCP IP networking protocol installed on both the local and remote systems The ServeRAID device driver and background server component installed on the remote system Refer to Installing ServeRAID Device Drivers on page 35 for more information If you are using Windows NT use the installation instructions and ServerGuide CDs provided with your server to install the Administration and Monitoring program If you want to install the program on a remote Windows 95 client use the ServerGuide Diskette Factory to create an IBM ServeRAID Administration and Monitoring Diskette then use the instructions in this section to install the Administration and Monitoring program
68. d passwords therefore the file must be kept in a secure directory When user names and passwords are entered into the Administration and Monitoring Program the client they are encrypted for delivery to the server The server decrypts the user names and passwords to verify proper access to the ServeRAID adapter or controller If the verification is successful the adapter or controller accepts commands from the client If no security file is present in the default directory or the directory specified by the s parameter security is disabled The server component then accepts commands from any client connection Chapter 3 Installing Device Drivers and Utility Programs 51 The security file contains one user name and password combination per line The strings are separated by a colon and each string has a maximum of eight characters Background Server Component Name Resolution The server component relies on name resolution to determine the host name from the client that is trying to connect When a client is trying to access a remote server the server tries to look up the name of the client connecting The method used to look up the name is determined by the configuration of the server Some possible methods for this are Domain Name Servers DNS or HOSTS files With certain configurations some timing delays might occur due to misconfiguration or inability to access the DNS If problems persist check your network configuration IPSSE
69. disk To maximize the overall performance choose a size that is close to the size of the system I O request You can set the stripe unit size to 8 KB 16 KB 32 KB or 64 KB When the stripe unit size is 8 KB the default setting or 16 Chapter 2 Using the Configuration Programs 23 24 IBM ServeRAID KB the maximum number of physical drives supported in an array is 16 When the stripe unit size is 32 KB or 64 KB the maximum number of physical drives supported in an array is eight See Interleave Depth and Stripe Unit Size on page 3 for more information Scan for New or Removed Ready Drives This choice is available in the Information mode only When you select this choice the configuration program scans all channels on the ServeRAID controller for new or removed Ready drives The following choices appear on the Actions pull down menu when you select the Arrays icon or a specific array icon from the Main Tree e Create an Array This choice appears in the Information mode if you select the Arrays icon and Ready drives are available When you select this choice the configuration program switches from the Information mode to the Configuration mode Delete All Arrays This choice is available in the Information mode only It appears on the Actions pull down menu if you select the Arrays icon from the Main Tree and arrays are defined for the controller Delete Array This choice is available in the Information mode only I
70. dows NT type copy a nt ipsmon exe c ipsadm e For NetWare type copy a netware ipsmon nim c nwserver Notes a The a represents the drive assignment for the diskette drive that contains the ServeRAID diskette b The c represents the drive where OS 2 Windows NT or NetWare is installed c These instructions assume that you installed NetWare in the NWSERVER directory 7 Press Enter then refer to Chapter 4 Starting and Using the Utility Programs on page 57 for information to start and use the IPSSEND and IPSMON programs Chapter 3 Installing Device Drivers and Utility Programs 53 Installing IPSSEND and IPSMON for OpenServer To install these programs for OpenServer 5 0 X 1 Press Enter then refer to Chapter 4 Starting and Using the Utility Programs Insert the IBM ServeRAID Command Line Programs Diskette into the diskette drive Copy the program files from the IBM ServeRAID Command Line Programs Diskette by typing the following doscp r a openserv ipssend usr bin ipssend Press Enter then type doscp r a openserv ipsmon usr bin ipsmon Press Enter then change the access permissions by typing the following chmod 700 usr bin ipssend Press Enter then type chmod 700 usr bin ipsmon on page 57 for information to start and use the IPSSEND and IPSMON programs Installing IPSSEND and IPSMON for UnixWare To install these programs for UnixWare 7 0 1 Pre
71. e OpenServer UnixWare and DOS Command IPSSEND REBUILD Controller DCh DSID NCh NSID Replace e Controller with the ServeRAID controller number 1 to 8 e DChwith the channel number for the Defunct drive 1 to 3 e DSID with the SCSI ID for the Defunct Drive 0 to 15 e NCh with the channel number for the New Drive 1 to 3 e NSID with the SCSI ID for the New Drive 0 to 15 Use the SETSTATE command to change the state of a physical device from its current state to a new state Attention You must be very careful when you use this command For example you might lose data if you reset a Defunct DDD device to Online ONL without first performing a Rebuild operation Supported operating systems Windows NT OS 2 NetWare OpenServer UnixWare and DOS Command IPSSEND SETSTATE Controller Channel SID NState Replace e Controller with the ServeRAID controller number 1 to 8 e Channel with the channel number for the drive 1 to 3 e SID with the SCSI ID for the drive 0 to 15 e NState with the new state for the drive Valid states are EMP for Empty RDY for Ready HSP for Hot Spare SHS for Standby Hot Spare DDD for Defunct Disk Drive DHS for Defunct Hot Spare RBL for Rebuild SBY for Standby and ONL for Online See Setting Physical Device States on page 70 for more information Use the UNBLOCK command to gain access to a blocked logical drive RAID level 0 logical drives become blocked if they are in an
72. e ServeRAID controller is part of a cluster The valid settings in the Shared state are 1 through 8 Valid settings in the Non Shared state are 201 through 215 e Merge Group State shows the current setting Shared or Non Shared for this parameter Hot Spare Drive Information Panel When you select the Hot Spare Drives icon from the Main Tree information about the total number of functional hot spare and standby hot spare drives defined for the ServeRAID controller appears in the Main Panel on the right When you select a specific hot spare drive from the Main Tree the following information appears in the Main Panel on the right e SCSI ID shows the SCSI ID assigned to the drive e Channel shows the SCSI channel to which the hot spare drive is attached e Drive Type shows the type of physical drive For a hot spare this will always appear as Hard Disk Drive e Size in MB shows the total capacity of the hard disk drive in MB e Drive State shows the drive state For a hot spare this will always appear as Hot Spare e Vendor shows characters that represent the drive manufacturer e Product or Model Number shows characters that represent the product or model number for the drive e Serial Number shows the serial number for the drive e Drive Firmware Level shows the current level of microcode in use for the drive e PFA Error indicates the status Yes or No for predictive failure alerts Yes indicates that PFA errors were de
73. e configuration you might want to verify that the size of the logical drive is appropriate for your operating system See your operating system documentation for more detailed information b To change the configuration click on a Modify icon button 5 Click on the Apply button to accept and save the configuration 6 If you have not already done so install your operating system See the server documentation or the documentation provided with your operating system for more information After you install your operating system see Chapter 3 Installing Device Drivers and Utility Programs on page 31 or see the installation instructions provided with your server for information about installing the ServeRAID device drivers and utility programs Learning about Custom Configuration The Custom Configuration path allows you to manually configure your ServeRAID subsystem Using this path you can select the drives that you want to include in each array define the number and size of the logical drives for each array and select the drives that you want to use as hot spares Before you select the Custom Configuration path consider the following e lf you are not familiar with the IBM implementation of RAID technology you might want to review the information provided in Understanding RAID Technology on page 3 before you begin e Each ServeRAID controller supports a maximum of eight arrays e Each ServeRAID controller supports a m
74. e driver Press F3 to specify a path then type a netware Note The a represents the drive assignment for the diskette drive that contains the ServeRAID diskette Select IPSRAID HAM from the list of device drivers that appears in the window then press Enter Note The IPSRAID HAM and support files will be copied to the system volume Select OK to overwrite the existing files Follow the instructions in the NetWare manual to complete the installation Installing the Files after Installing NetWare 4 1X 1 N O OF FR Q 00 11 12 13 14 15 16 Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Driver Diskette From the system console start the NetWare installation utility program by typing load install Press Enter Insert the IBM ServeRAID Device Driver Diskette into the diskette drive Select Driver options from the Installation Options list Select Configure disk and storage from the Driver Options pop up window Select Select an additional driver from the Additional Drivers Actions pop up window When the next screen appears press the Ins key to install an unlisted driver When the next screen appears press the F3 key to specify a different path In the Specify a directory path field type a netware When prompted to select a driver to install select IPSRAID HAM Select Yes when prompted to copy the IPSRAID HAM driver When
75. e onto the Desktop A Program Settings window will appear At the Program page in the Path and File Name field type c os2 ipsradm exe In the Parameters field type 1f d path logfile At the General Tab in the Title field type ServeRAID Installing Device Drivers for OpenServer To use the ServeRAID Administration and Monitoring Program with SCO you must first install the WIN32 Based version of the Administration and Monitoring Program on a Windows NT or Windows 95 client Then attach the Windows NT or Windows 95 client to the same network as the OpenServer systems that contain the ServeRAID adapters or controllers Finally you must install the ServeRAID device driver and background server component for OpenServer The background server component for OpenServer installs automatically when you use the instructions in this chapter to install the ServeRAID OpenServer device driver This component enables the OpenServer system to act as the TCP IP interface for the remote WIN32 Based Program See Programs for Windows NT and Windows 95 on page 32 for more information Installing the Files for OpenServer Before you begin the installation review the following information e You must install logical drives as Bus Number 0 when using the MKDEV program regardless of the channel that the physical drives are on e You must install nondisk devices such as CD ROM and tape drives as Bus Numbers 1 2 or 3 relative to
76. eRAID Command Line Programs Diskette using Diskette Factory or by downloading the image from the IBM Support Page on the World Wide Web start the server 2 After the operating system loads insert the IBM ServeRAID Command Line Programs Diskette into the diskette drive 52 IBM ServeRAID 3 If you are using NetWare go to step 5 on page 53 If you are using Windows NT or OS 2 create an IPSADM directory on your hard disk drive To do this go to the operating system command prompt and type md c ipsadm Notes a The c represents the drive where OS 2 or Windows NT is installed b If you installed the Administration and Monitoring Program files you already created this directory 4 Press Enter 5 Copy the IPSSEND EXE file to your hard disk drive by typing one of the following at the command prompt e For OS 2 type copy a os2 ipssend exe c ipsadm e For Windows NT type copy a nt ipssend exe c ipsadm e For NetWare type copy a netware ipssend nim c nwserver Notes a The a represents the drive assignment for the diskette drive that contains the ServeRAID diskette b The c represents the drive where OS 2 Windows NT or NetWare is installed c These instructions assume that you installed NetWare in the NWSERVER directory 6 Press Enter then copy the IPSMON EXE file to your hard disk drive by typing one of the following at the command prompt e For OS 2 type copy a os2 ipsmon exe c ipsadm e For Win
77. en you select a SCSI Channel icon You can select this choice to change the transfer speed from its default value of Optimal When the transfer speed is set to Optimal the ServeRAID adapter or controller determines the best transfer speed based on the types of SCSI drives and storage enclosures in use Choices available are Ultra2 SCSI UltraSCSIl Fast SCSI 2 and SCSI 2 e Remove Defunct Drive This choice appears in the Information mode only After you physically remove a drive select this choice to delete the drive information from the configuration e Replace Defunct Drive This choice appears in the Information mode only Select this choice to physically replace a defunct disk drive Note Always replace a defunct drive with a drive of equal or greater capacity e Scan for New or Removed Ready Drives This choice is available in the Information mode only When you select this choice the configuration program scans the individual channel or all channels on the ServeRAID controller for new or removed Ready drives Help The following choices are available from the Help pull down menu e Contents Select this choice to access the online Help facility This choice is available in both the Information and Configuration modes Task oriented Help is available from many of the pop up windows that appear during the configuration process and you also can obtain context sensitive Help by selecting an item and then pressing the F1 key e
78. er of hard disk drives that make up the logical drive The channel and SCSI ID of the physical drives that make up the logical drive Monitoring the Physical Device Information You can monitor the physical device information by clicking on the desired device button on the Main screen of the Administration and Monitoring Program Descriptions of the fields that might appear on the Device Management screen are as follows Note The number of fields that appear on the Device Management screen depend on the physical device selected Channel The channel to which the device is connected 1 2 or 3 SCSI ID The SCSI ID 0 to 15 Vendor The manufacturer of the physical device Serial Number The manufacturer identifier Size The size in megabytes State The current state see Physical Drive State Descriptions on page 19 and Logical Drive State Descriptions on page 18 more information Soft Event The number of soft events reported from the device event log Hard Event The number of hard events reported from the device event log Chapter 4 Starting and Using the Utility Programs 75 Misc Event The number of miscellaneous events reported from the device event log Parity Event The number of parity events reported from the device event log PFA Event Yes device indicates predictive failure analysis event No device does not indicate predictive failure analysis error Starting the IPSSEND Program You can r
79. ers To select and connect to a server 1 Click on the H icon on the Tool Bar or select Network Settings from the Options pull down menu A screen similar to the following appears Chapter 4 Starting and Using the Utility Programs 59 Network Settings x C Stand alone Cancel User Name Password fim XXXXXXX TCPAP Add Delete T Client Server Settings Host Name Port Number Optional ServeRAID 1087 2 Click on the Client Server radio button 3 If security is enabled on the server to which you are connecting type in your User Name and Password as defined by the security file on the server to which you are connecting Refer to Background Server Component Security on page 51 for information on the security file 4 Type in either the Host Name or the TCP IP Address of the system or select it from the pull down list Note If your server was started on any port other than the default 1087 after the Host Name or TCP IP Address that you just entered type in a colon and the correct port number for your configuration for example ServeRAID 1088 5 Click on Connect to initiate a connection with the remote system General Options When you select General Options from the Options pull down menu a screen similar to the following appears General Options x Alarm Options Reset Alarm m Polling Options Po
80. es The ServeRAID adapters and controllers support adding new space to a disk array in the following scenarios e You can increase the free space in a disk array without changing the size of the logical drives This is useful when you need to add logical drives to your existing disk arrays Refer to the following illustration Logical Drive 0 500 mB Logical Drive 0 500 MB Logical Drive 1 1000 me gt ogical Drive 4 1000 MB Free Space 2800 MB Free pace 4950 MB Disk 1 Disk 2 Disk 3 Disk 1 Disk 2 Disk 3 Disk 4 Before LDM After LDM 68 IBM ServeRAID For example an existing disk array uses three 2150 MB hard disk drives that are configured as two RAID level 5 logical drives one 500 MB and 1000 MB and 2800 MB of free space If you use the logical drive migration procedure and add a 2150 MB hard disk drive to increase the amount of free space the end result will be two RAID level 5 logical drives one 500 MB and one 1000 MB and with 4950 MB of free space e You can increase the size of all the logical drives proportionally in a disk array This is useful when you want to increase the size of the currently defined logical drives Refer to the following illustration Logical Drive 0 500 MB Logicall Drive 0 750 MB Logical Drive 1 1000 mB gt Logical
81. ettings for the ServeRAID adapter or controller See Setting the Bootable CD ROM Feature on page 29 for more information Notes 1 The Multiple Controller mode has two settings Erase and Shrink When this parameter is set to Erase redundant copies of the ServeRAID BIOS are erased When this parameter is set to Shrink the extra copies of the ServeRAID BIOS are removed from memory but stored for future use When you have multiple ServeRAID adapters and controllers installed you need only one active copy of ServeRAID BIOS However to ensure that you will have a copy of the ServeRAID BIOS available if your active copy becomes defective or unavailable leave the Multiple Controller parameter set to Shrink 2 Only one adapter or controller in the system can support the INT13 extensions View Controller and PCI Information shows the ServeRAID adapter or controller hardware and PCI register information Exit lets you exit the Mini Configuration program Setting the Bootable CD ROM Feature When you attach a CD ROM drive to the ServeRAID adapter or controller and set the Bootable CD ROM feature to Yes the ServeRAID adapter or controller will attempt to start a CD that has a bootable startup partition if no other adapter or controller in the system is currently using INT13 extensions Only one adapter or controller in the system can support the INT13 extensions To enable the Bootable CD ROM feature 1 Select Advanced Func
82. figuration from the Advanced pull down menu A screen similar to the following appears Adapter Configuration x Adapter Configuration Options C Copy Drive Configuration To Adapter Cancel C Copy Adapter Configuration To Drives C Initialize Adapter Configuration 2 Select Copy Adapter Configuration to Drives 3 Click on OK Initializing the Adapter Initializing the adapter or controller configuration clears all the logical drives E p and resets all the functional hard disk drives to the Ready RDY state This operation is useful when you want to start over and create a new configuration To initialize the adapter or controller M a jae Ppa 1 Click on the icon on the Tool Bar or select Adapter Configuration from the Advanced pull down menu A screen similar to the following appears Adapter Configuration x Adapter Configuration Options C Copy Drive Configuration To Adapter Cancel C Copy Adapter Configuration To Drives Initialize Adapter Configuration 2 Select Initialize Adapter Configuration Attention After you initialize the configuration you will not have access to any data stored on the logical drives attached to the selected ServeRAID adapter or controller This choice deletes the existing configuration information sets all functional hard disk drives attached to the controller to the Ready state and deletes all
83. h your operating system and Chapter 3 Installing Device Drivers and Utility Programs on page 31 for instructions After you install the device drivers and utility programs refer to Chapter 4 Starting and Using the Utility Programs on page 57 1 KB equals approximately 1000 bytes 2 IBM ServeRAID Understanding RAID Technology RAID is the technology of grouping several hard disk drives in a computer into an array that you can define as one or more logical drives Each logical drive appears to the operating system as a single drive This grouping technique greatly enhances logical drive capacity and performance beyond the physical limitations of a single hard disk drive When you group multiple physical hard disk drives into a logical drive the ServeRAID controller can transfer data in parallel from the multiple drives in the array This parallel transfer yields data transfer rates that are many times higher than with nonarrayed drives This increased speed makes the system better able to meet the throughput the amount of work in a given amount of time or productivity needs of the multiple user network environment The ability to respond to multiple data requests provides not only an impressive increase in throughput but also a decrease in response time The combination of parallel transfers and simultaneous responses to multiple requests allows disk arrays to provide a high level of performance in network environmen
84. he active adapter or controller 1 to 8 Number of Logical Drives The number of defined logical drives 0 to 8 Unattended Mode Off The user chooses the recovery method when there is a ServeRAID startup error On The adapter or controller chooses the recovery method when there is a ServeRAID startup error Code Block Version The current version number of the firmware loaded on the adapter or controller Boot Block Version The current version number of the bootable microcode loaded on the adapter or controller Concurrent Commands The maximum number of concurrent commands supported Maximum Devices Supported The maximum number of devices supported Flash Program Count The current number of times the flash EEPROM has been written Defunct Disk Count The current number of defunct hard disk drives Rebuild Rate The current setting Low Medium or High of the rebuild rate Chapter 4 Starting and Using the Utility Programs 73 74 IBM ServeRAID Hot Swap Rebuild The current state Enabled or Disabled of the hot swap rebuild feature Offline Logical Drive Count The current number of offline logical drives Configuration Update Count The number of times that the ServeRAID configuration has been updated NVRAM Battery Backup Device The current state of the battery backup cache installed not installed or defective Monitoring the Device Event Logs The ServeRAID adapters and controllers store information concerning va
85. i 20 Using the Menu Bar aaau aaa 0 0 ee 21 Using the ServeRAID Mini Configuration Program 26 Viewing the Controller Status oaoa 00000002 2 ee 27 Viewing the Configuration 020020022 eee 28 Using the Advanced Configuration Functions 28 Copyright IBM Corp 1996 1998 7 Using the ServeRAID Configuration Program The graphical interface in the ServeRAID Configuration Program makes it easy for you to create delete change or view your ServeRAID configuration Before you begin review the following illustration to become familiar with the layout of the configuration program screens See PRS Pe ee pegs teu l reel conden oa PT Pe ie Sere Corga nir Pingus coed lt Descriptions of the numbered areas are as follows 1 Menu Bar 2 Tool Bar 3 Main Tree 4 Main Panel 8 IBM ServeRAID 5 Provides standard File View Actions and Help pull down menus See Using the Menu Bar on page 21 for more information Provides quick path icons for common tasks The icons from left to right are Save the Configuration Event Log Configure the ServeRAID Controller Configure for Clustering Scan for New or Removed Ready Drives Create an Array and Help See Using the Tool Bar on page 20 for more information Provides an expandable tree view of your ServeRAID subsystem You will perform most of your ServeRAID configuration and maintenance tasks by first select
86. iewing the Configuration on page 28 for more information e Advanced Functions lets you initialize the configuration import configuration from drives configure BIOS settings and view the controller and PCI information See Using the Advanced Configuration Functions on page 28 for more information 4 Use the Up Arrow 1 or Down Arrow key to highlight your choice then press Enter 5 Follow the instructions that appear on the screen 6 Click on Exit to leave the Main Menu Viewing the Controller Status When you select View Controller Status from the Main Menu the following information appears on the screen e Unattended shows the current On Off state of the Unattended mode When set to Off you can choose the recovery method when there is a ServeRAID adapter or controller startup error When set to On the ServeRAID adapter or controller chooses the recovery method when a startup error occurs e Read Ahead shows the current On Off state of the Read Ahead Cache mode e BootCD shows the current On Off state of the Bootable CD ROM function Refer to Setting the Bootable CD ROM Feature on page 29 e CompMode shows the current BIOS compatibility mode On indicates 8 GB Extended Off indicates 2 GB Limited e Clustered shows the current On Off state for clustering e NVRBB shows the current state of the battery backup cache option The default value is Enabled Boot Bik shows the versi
87. ify This choice is not always active Press this key to modify the configuration to match the current drive location You might remove the hot swap drives from the server for security or maintenance reasons If you replace the drives but install them in different drive bays you can press F6 to accept the new locations and the ServeRAID adapter or controller will update the configuration F7 Import Press this key to import the configuration information from the drive and to update the configuration information for the ServeRAID adapter or controller This choice is useful when you replace the ServeRAID adapter or controller in an existing ServeRAID subsystem You also might press F7 if you replace a whole set of drives with drives that were configured in another server with a ServeRAID adapter or controller Note When you install drives in a server that has no logical drives defined the F7 choice will not appear The ServeRAID adapter or controller does not contain any logical drives in its factory configuration Therefore F7 will not appear In this case do the following 1 Restart the server and press Ctrl I to enter the Mini Configuration program see Using the ServeRAID Mini Configuration Program on page 26 2 Select Advanced Functions 3 Select Import Configuration from Drives to Adapter and follow the instructions on the screen NVRAM Cache Controller Not Responding Explanation BIOS code detected a bad or failed
88. ing the ServeRAID controller array logical drive hot spare drive or physical drive objects from this Main Tree Provides specific device information or configuration instructions When the configuration program is in the Information mode and you select an object from the Main Tree detailed information about the object appears in this panel When the configuration program is in the Configuration mode the instructions needed to configure your ServeRAID subsystem appear in this panel 5 Event Viewer Provides advisory and progressive status information and messages during the ServeRAID configuration process Each message appears with a time stamp a date stamp and an icon that classifies the severity of the event Attention messages identify potential data loss situations and Fatal messages inform you when a failure has occurred Starting the Configuration Program The ServeRAID Configuration Program runs in two modes the Configuration mode and the Information mode In the Configuration mode you can create or delete disk arrays create or delete logical drives and define your hot spare drives When this mode is active only a limited set of functions is available from the Menu and Tool Bars See Using the Configuration Mode on page 11 for more information In the Information mode you can view the existing device and configuration information for your ServeRAID subsystem When this mode is active you can use the functions availa
89. ion Installation and User s Guide You can obtain a copy of this manual at the following address on the World Wide Web Cm http www pc ibm com netfinity clustering Scan for New or Removed Ready Drives This icon appears in the Information mode When you select a ServeRAID controller from the Main Tree and click on this icon the configuration program will scan the individual channel or all channels on the controller for new or removed Ready drives Use this feature whenever you physically change the configuration of your ServeRAID subsystem for example when you physically install or remove one or more SCSI drives Create an Array This icon appears in the Information mode if you K select a controller from the Main Tree and that controller has Ready drives available Help This icon appears in both the Information and Configuration modes Select this icon to access the online ServeRAID Help facility Task oriented Help is available from many of the pop up windows that appear during the configuration process and you also can obtain context sensitive Help by selecting an item and then pressing the F1 key Using the Menu Bar Descriptions of the choices available from the Menu Bar are as follows File The File pull down menu contains the following choices in the Information mode e Save Configuration Event Log Select this choice to save configuration event information such as the start time an
90. ion Press F4 F5 F7 or F10 03 98 Explanation A drive was imported from another system and it has valid configuration and Online Rebuild and Hot Spare Standby Hot Spare drives are not responding Action Press F4 F5 F7 or F10 03 A8 Explanation A drive was imported from another system and it has valid configuration and Online Rebuild and Ready Standby drives are not responding Action Press F4 F5 F7 or F10 03 B8 Explanation A drive was imported from another system and it has valid configuration and Online Rebuild Hot Spare Standby Hot Spare and Ready Standby drives are not responding Action Press F4 F5 F7 or F10 BCS ECS Explanation and Possible Recovery Action 03 c8 Explanation A drive was imported from another system and it has valid configuration and Online Rebuild drives are not responding and unidentified drives were found Action Press F4 F5 F7 or F10 03 D8 Explanation A drive was imported from another system and it has valid configuration and Online Rebuild and Hot Spare Standby Hot Spare drives are not responding and unidentified drives were found Action Press F4 F5 F7 or F10 03 E8 Explanation A drive was imported from another system and it has valid configuration and Online Rebuild and Ready Standby drives are not responding and unidentified drives were found Action Press F4 F5 F7 or F10 03
91. ity f The f command specifies to log messages to the default file IPSADM LOG f filename The f filename command lets you specify the name of a file in which to log messages d The d command disables the logging of messages to the standard output which is usually the screen Logging Messages Messages generated by the ServeRAID adapter or controller consist of startup information connecting and disconnecting clients and error messages When using the f f filename and d parameters you can specify how you want the ServeRAID messages handled The default is to log messages to the standard output which is usually the screen However you can have these messages logged to other output devices such as a printer or a text file The following information provides examples of different formats for using the IPSADM command and the results Command Results IPSADM Logs messages to the standard output and not to a file IPSADM f Logs messages to the standard output and to the IPSADM LOG file IPSADM f NEWFILE LOG Logs messages to the standard output and to the file that you defined NEWFILE LOG IPSADM d Disables the logging of messages IPSADM f d Logs messages to the IPSADM LOG file however messages are not logged to the standard output Background Server Component Security Security information is maintained in an optional text file on the server The file stores unencrypted user names and unencrypte
92. ive two 2150 MB Ready drives and four 4300 MB Ready drives Express Configuration will create three arrays and one hot spare drive as follows Array A The total capacity of this array is 1024 MB 1x1024 MB and it contains one 1024 MB RAID level 0 logical drive Array B The total capacity of this array is 4300 MB 2x2150 MB and it contains one 2150 MB RAID level 1 logical drive Array C The total capacity of this array is 12900 MB 3x4300 MB and it contains one 8600 MB RAID level 5 logical drive Hot Spare Express Configuration defines one of the four 4300 MB drives as a hot spare drive as follows e When there are four or more Ready drives of the same capacity Express Configuration groups three of the drives into one array as in Array C and defines one of the drives as a hot spare e A hot spare drive must be of equal or greater capacity than the drive that it is intended to replace In this configuration the 4300 MB drive can replace any failed drives in Array B or Array C Using Express Configuration To use the Express Configuration path 1 Click on the ServeRAID controller that you want to configure in the Main Tree 2 Click on the Express Configuration radio button 3 Click on the Next button 4 Review the information that appears on the Configuration Summary screen Chapter 2 Using the Configuration Programs 11 Notes a Some operating systems have size limitations for logical drives Before you save th
93. iver b BUS of device always 0 with ATAPI or wd driver Let the system start normally until it comes to the select Media options e f you are using OpenServer 5 0 2 go to step 3 e f you are using OpenServer 5 0 4 go to step 4 To install with OpenServer 5 0 2 a Select Adapter type as WD b Select Media Type as SCSI CDROM c Select ID BUS and LUN as 0 d Go to step 5 To install with OpenServer 5 0 4 a Select Media Type as IDE CDROM Drive b Select Primary Adapter and Master Device c Go to step 5 You have completed the installation Chapter 3 Installing Device Drivers and Utility Programs 45 Installing Device Drivers for UnixWare The instructions for installing the ServeRAID files when using UnixWare depend on the number of IDE and SCSI disk storage adapters and controllers installed in the system If all of the direct access storage devices DASD in the system are attached to a single disk storage adapter or controller such as the ServeRAID adapter or controller you can skip the instructions in this section and go directly to Installing the Files while Installing UnixWare on page 49 or Installing the Files after Installing UnixWare on page 49 If you are attaching devices to multiple disk storage adapters or controllers including IDE and SCSI controllers integrated on the system board use the following instructions e f you are installing UnixWare on a drive attached to a Ser
94. k the RAID level 0 logical drives and access them once again But remember the logical drive might contain damaged data Refer to Unblocking Logical Drives on page 67 for more information To perform a Rebuild operation 1 Click on the DDD device on the Main screen of the Administration and Monitoring Program 2 Click on Rebuild Device 3 Select a RDY drive to use to reconstruct the data or click on OK to use the same drive slot and SCSI ID if you have physically replaced the defunct drive 4 The reconstruction begins automatically and reports progress information on the screen Notes 1 The ServeRAID adapter or controller can perform only one Rebuild operation at a time 2 If the array contains a critical CRT logical drive the Rebuild operation changes the hard disk drive state from DDD to RBL After the Rebuild operation completes the hard disk drive state changes from RBL to ONL If you rebuild to a RDY drive the DDD drive is removed from the disk array and becomes a defunct hot spare DHS 3 The hard disk drive being rebuilt must be the same size or larger than the failed drive 4 If a hot spare HSP drive is available a Rebuild operation will start automatically 5 If multiple hot spare HSP drives are available the ServeRAID adapter or controller searches all the drives on each channel for a hot spare drive of the appropriate size The first appropriate hot spare drive found enters the Rebui
95. ld RBL state Adapter Administration This section provides instructions for copying the drive configuration to the ServeRAID adapter or controller copying the ServeRAID adapter or controller configuration to the drives initializing the adapter or controller configuration and scanning for new drives Copying the Drive Configuration to the Adapter lg J You can copy the configuration stored on the hard disk drives to the ServeRAID adapter or controller This operation is useful when drives are imported from other systems To copy the configuration f 1G o qF 1 Click on the icon on the Tool Bar or select Adapter Configuration from the Advanced pull down menu A screen similar to the following appears Adapter Configuration x r Adapter Configuration Options C Copy Drive Configuration To Adapter Cancel C Copy Adapter Configuration To Drives crea Initialize Adapter Configuration 2 Select Copy Drive Configuration to Adapter 3 Click on OK Chapter 4 Starting and Using the Utility Programs 71 72 IBM ServeRAID Copying the Adapter Configuration to the Drives You can copy the configuration stored for the ServeRAID adapter or controller lg Va to all configured hard disk drives O o To copy the configuration D a EDE iy 1 Click on the icon on the Tool Bar or select Adapter Con
96. le from the World Wide Web These programs are both on the IBM ServeRAID Command Line Programs Diskette You can download the most current versions of the ServeRAID device drivers and utility programs or a copy of the IBM ServeRAID Command Line Programs Diskette from the following address on the World Wide Web http www pc ibm com support From the IBM Support page 1 Select IBM Server Support then select Server Options from the Family menu 2 Select Downloadable Files then select ServeRAID Administration and Monitoring Program The IBM ServeRAID Administration and Monitoring Program monitors your ServeRAID adapters and controllers while your network operating system is up and running This section provides information about the IBM ServeRAID Administration and Monitoring Program files for the ServeRAID adapters and controllers You can use these files with the Windows NT Windows 95 OS 2 Novell NetWare SCO OpenServer and SCO UnixWare operating systems Programs for Windows NT and Windows 95 32 IBM ServeRAID The ServeRAID program files available for Windows NT consist of the ServeRAID Administration and Monitoring Program device drivers background server components and the IPSSEND and IPSMON command line programs See IPSSEND and IPSMON Programs on page 52 for more information The IBM ServeRAID Administration and Monitoring Program for Microsoft Windows NT or Windows 95 is called the WIN32 Based p
97. le in the Information mode when you select a logical drive from the Main Tree and the following conditions are both true The ServeRAID adapter or controller does not support the auto synchronization feature You previously selected Options from the View pull down menu and disabled the Synchronize all new RAID level 5 logical drives setting Synchronizing a logical drive verifies that the data redundancy for the logical drive is correct You must synchronize all RAID level 5 logical drives before storing data See page 15 for more information e Initialize This choice is available in the Information mode when you select a logical drive from the Main Tree and you previously selected Options from the View pull down menu and disabled the Automatically initialize new logical drives setting e Unblock the Logical Drive This choice appears in the Information mode when you select a specific logical drive that is in the Blocked state You can select this choice to change the Drive Access setting for the RAID level 0 logical drive from Blocked to Unblocked During a rebuild operation the ServeRAID controller sets the state of any RAID level 0 logical drives associated with a failed array to the Blocked state After the Rebuild operation completes you can unblock the RAID level 0 logical drives and access them once again However the logical drive might contain damaged data You must either re create install or restore
98. level of microcode currently installed for the ServeRAID controller Physical Slot shows the actual physical slot location for the ServeRAID controller for example PCI slot 4 Battery Backup Write Cache provides information about the optional battery backup cache device Statements such as Installed Not Installed Defective or Replace Battery might appear for this feature Read Ahead Cache Mode shows the current setting Enabled or Disabled for the read ahead cache mode See page 23 for more information Siripe Unit Size shows the current setting of 8 KB 16 KB 32 KB or 64 KB for the stripe unit size See Interleave Depth and Stripe Unit Size on page 3 and page 23 for more information Rebuild Rate shows the current setting High Medium or Low for the rebuild rate See page 23 for more information Hot Swap Rebuild shows the current setting Enabled or Disabled for the hot swap rebuild feature This feature is set to Enabled when the level of ServeRAID firmware in use supports this feature Data Scrubbing shows the current setting Enabled or Disabled for the data scrubbing feature This feature is set to Enabled when the level of ServeRAID firmware in use supports this feature The data scrubbing feature continuously reads all sectors of RAID level 1 and RAID level 5 logical drives in the background while your system is running If a defective sector is found it is automatically repaired With this feature En
99. ll Adapter Every 5 a Seconds Cancel You can use this screen to e Enable or Disable the alarm 60 IBM ServeRAID e Reset the alarm e Set the polling options Enabling or Disabling the Alarm The alarm alerts you to a failure in the system It sounds if any of the following conditions occur e A DDD hard disk drive is found e A Predictive Failure Analysis PFA error occurs e A ServeRAID adapter or controller is not responding To enable or disable the alarm click on the box for Disable Alarm on the General Options screen Placing a check in the check box disables the alarm removing the check enables the alarm Resetting the Alarm Resetting the alarm turns off the alarm for the current failure without disabling the feature To reset the alarm you can either click on the icon or click on Reset Alarm on the General Options screen Polling Options The ServeRAID adapter or controller will poll or check your server at a specified time interval for any changes that may have occurred in the server You can choose how often the adapter or controller polls the server by specifying a time interval on the options menu from five to 60 seconds The default time interval setting is five seconds The program will poll for the following events e Rebuild started e Rebuild completed e Synchronization started e Synchronization completed e Migration started e Migration completed e PFA error detected e Dead
100. llowing ServeRAID device driver and program files to the OS 2 subdirectory on your hard disk IPSRAID ADD IPSADM EXE and IPSRADM EXE The program copies the following ServeRAID Help file to the OS2 HELP directory IPSRADM HLP 7 Edit the CONFIG SYS file and verify that there is only one copy of the line BASEDEV IPSRAID ADD Notes a b If you have more than one ServeRAID or SCSI adapter in your system make sure that the BASEDEV statement for the adapter controlling the startup boot device appears before the BASEDEV statements for other ServeRAID or SCSI adapters in the CONFIG SYS file After you install any service packs check the path for the IPSRAID ADD device driver and verify that the correct device driver is installed 8 Restart the server Starting the Administration and Monitoring Program To start the ServeRAID Administration and Monitoring Program for OS 2 Go to the OS 2 subdirectory on the hard disk drive then type 1 ipsradm If d path logfile Notes a b C Make sure that the path you type exists The program will not create a path Logfile is where the program will log messages If you omit the f parameter the program will create the IPSRADM LOG default file in the OS2 subdirectory to log the program messages 2 Press Enter 3 Use the following steps if you want to define IPSRADM to OS 2 a b Open the Templates Folder on the OS 2 Desktop Drag a program templat
101. llustration enhanced RAID level 1 5 RAID level O 4 RAID level 1 4 RAID level 5 6 screen configuration program 8 import configuration 28 improve system performance 3 increasing free space in disk array 68 increasing size of all logical drives 69 information mode description 14 information panel array 16 channel 18 controller 15 hot spare drive 17 logical drive 16 physical drive 17 system 15 INIT command 77 initialize automatic 22 controller configuration 22 23 28 disabling 22 logical drive 66 ServeRAID adapter 72 Index 103 initiator ID SCSI 18 INITSYNC command 78 installation overview 2 installing additional drives 68 administration and monitoring program 31 34 device driver NetWare 3 12 37 device drivers 2 31 35 device drivers NetWare 36 device drivers NetWare 3 12 37 device drivers Windows NT 35 36 IPSSEND and IPSMON 52 IPSSEND for DOS 54 NetWare 4 1X device driver 38 39 OpenServer device drivers 43 45 operating system 2 OS 2 device driver 40 41 UnixWare device driver 46 49 WIN32 Based program 34 Windows NT files for 35 interleave depth stripe unit 3 IPSMON program installing 52 obtaining 32 starting 83 ipsr codes 94 IPSSEND program commands 76 83 installing 52 obtaining 32 starting 76 L large icons 21 LDM logical drive migration 18 66 67 levels logical drive affects on the rebuild operation 99 changing 19 66 67 enhanced level 1 5 level O 4 19 64 65 level 1 4 19 64 6
102. lly when you use the instructions in this chapter to install the ServeRAID device driver for OS 2 Installing the Files while Installing OS 2 You can use the following instructions to install the ServeRAID device driver and Administration and Monitoring Program files while installing OS 2 Warp Server Note If you install these files on a logical drive that has its write policy set to the write back mode wait at least 10 seconds after being prompted to press Ctrl Alt Del before you actually press the keys Waiting 10 seconds or longer gives the ServeRAID adapter or controller the time needed to flush all dirty cache pages out to the hard disk To install the ServeRAID files while installing OS 2 1 Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Driver Diskette 2 Make a copy of the OS 2 Warp Diskette 1 and label it Copy of OS 2 Diskette 1 3 Copy the IPSRAID ADD file from the OS2 directory on the IBM ServeRAID Device Driver Diskette to the Copy of OS 2 Diskette 1 If there is not enough space delete files not needed in your installation such as proprietary CD ROM or SCSI device drivers Make sure you remove all entries referring to any device drivers you delete from the CONFIG SYS file 4 Edit the CONFIG SYS file on the Copy of OS 2 Diskette 1 to add the following lines BASEDEV IPSRAID ADD SET COPYFROMFLOPPY 1 5 Install OS 2 but when prompted to insert diskette 1 use the updated Copy of OS 2 Diske
103. m files available for OpenServer and UnixWare consist of device drivers background server components and the IPSSEND and IPSMON command line programs See IPSSEND and IPSMON Programs on page 52 for more information Chapter 3 Installing Device Drivers and Utility Programs 33 The background server components for SCO operating systems install automatically when you use the instructions in this chapter to install the ServeRAID OpenServer or UnixWare device drivers To use the ServeRAID Administration and Monitoring Program with a SCO operating system you must first install the WIN32 Based program on a Windows NT or Windows 95 client Then attach the Windows NT or Windows 95 client to the same network as the OpenServer or UnixWare system that contains the ServeRAID adapter or controller You must perform all administration functions from the remote WIN32 Based client Installing the ServeRAID WIN32 Based Program 34 IBM ServeRAID This section provides instructions for installing the ServeRAID WIN32 Based program Before you begin the installation e Be sure that your ServeRAID adapter or controller is physically installed properly cabled and configured e Be sure that your network operating system is installed and functional e If your network operating system is Windows NT you can use the ServeRAID WINS32 Based program remotely in the client server mode or locally in stand alone mode e The ServeRAID adapters an
104. m the pull down list The screen will show a list of the affected logical drives with their new sizes 6 Click on OK Physical Device Administration This section provides the information needed to set device states and rebuild devices Setting Physical Device States The following table shows the valid device states and valid alternative states Device State Alternative States EMP RDY SBY SBY RDY EMP HSP SHS DHS EMP HSP SHS SHS HSP DHS DDD ONL RBL RDY EMP HSP SHS SBY HSP RDY SHS DHS ONL DDD RBL DDD ONL To set or change the physical device state 1 Select the device from the Main screen of the Administration and Monitoring Program 2 Click on the radio button that indicates the desired state Note If you set a DDD drive to ONL without performing a Rebuild RBL operation and that drive is part of a critical CRT logical drive your system might lose data 3 Click on Set Device State Rebuilding a Device When a hard disk drive goes defunct DDD a Rebuild operation is required to reconstruct the data for the device in its respective disk array The ServeRAID adapters and controllers can reconstruct RAID level 1 and RAID level 5 logical drives but they cannot reconstruct data stored in RAID level 0 logical drives To prevent data integrity problems the ServeRAID adapters and controllers set the RAID level 0 logical drives to Blocked during a Rebuild operation After the Rebuild operation completes you can unbloc
105. n One or more drives were found at an unconfigured SCSI ID For each drive listed a new state of Ready RDY appears Action This is an information message No action is required Installation stopped Explanation The server cannot access the ServeRAID adapter or controller Action This is a follow on message to a preceding message Follow the Action instructions for the preceding message to resolve the problem n logical drives are installed Explanation n represents the number of defined logical drives Action This is an information message No action is required New adapter installed in a configured server or drives are imported Explanation This message might be preceded by the previous two messages and the F5 and F6 key choices because the drives were not found in the configured location When the ServeRAID adapter or controller detects that the identifiers of the drives do not match the adapter configuration information the following message appears Following new drives found host id old ch old SID new ch new SID Where host id identifies the System Name where the ServeRAID adapter or controller resides old ch is the channel that matches the drive configuration information old SID is the SCSI ID that matches the drive configuration information new ch is the channel where the drive is now located new SID is the SCSI ID where the drive is now located For example when drivers are imported fr
106. nding RAID technology 3 UnixWare device drivers installing 46 49 programs for 33 updates obtaining 32 using write cache mode 16 Actions pull down menu 22 administration and monitoring program 59 administration functions 63 advanced configuration functions 28 background server component 50 command line parameters 50 configuration mode 11 custom configuration 12 13 express configuration 11 File pull down menu 21 information mode 14 IPSMON program 83 IPSSEND program 76 menu bar 21 mini configuration program 26 Options pull down menu 22 59 Pkgadd utility program 49 right mouse button 13 20 22 SCOAdmin utility program 49 ServeRAID Configuration Program 8 tool bar 20 View pull down menu 21 V vendor ID drive 17 18 View pull down menu 21 viewing adapter status 27 array information 16 channel information 18 configuration information 14 27 device information 14 events viewer 9 hot spare drive information 17 hot swap rebuild setting 15 logical drive information 16 number of hot spare drives 16 number of physical drives 16 physical drive information 17 rebuild rate 15 SCSI transfer speed 18 ServeRAID controller information 15 stripe unit size 15 system information 15 W WIN32 Based program 32 58 Windows device drivers 35 36 programs for 32 World Wide Web clustering information obtaining 21 22 code updates obtaining 32 Index 107 Part Number 01K7611 Printed in U S A 01K7611
107. ol Bar are as follows Save the Configuration Event Log This icon appears in the Information mode When you select this icon a pop up window appears and lets you specify a file name and path for the ServeRAID Configuration Event Log Note This feature currently is not supported on IBM Netfinity 3000 3500 5000 and 5500 servers however IBM intends to support this feature on these server models in the near future The updated BIOS code needed to support this feature will be made available on the World Wide Web See page 32 for the instructions needed to access the IBM support page 20 IBM ServeRAID Configure the ServeRAID Controller This icon appears in the Information mode When you select this icon the configuration E y program switches from the Information mode to the Configuration mode A message will appear at the bottom of the Main Panel if no Ready drives are available for the selected ServeRAID controller If this occurs you can click on the Cancel button to return to the Information mode or select another ServeRAID controller Configure for Clustering This icon appears in the Information i mode You can select this icon to define the ServeRAID controller for use in a dual node high availability shared disk cluster environment Detailed instructions for using the clustering features are provided in the BM Netfinity High Availability Cluster Solut
108. ollowing instructions to install the ServeRAID device driver and Administration and Monitoring Program files after installing OS 2 Warp Server To install the ServeRAID files after installing OS 2 1 Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Driver Diskette 2 After you complete the OS 2 installation insert the BM ServeRAID Device Driver Diskette 3 From an OS 2 window type a Notes a The a represents the drive assignment for the diskette drive that contains the ServeRAID diskette b If you install these files on a logical drive that has its write policy set to the write back mode wait at least 10 seconds after being prompted to press Ctrl Alt Del before you actually press the keys Waiting 10 seconds or longer gives the ServeRAID adapter or controller the time needed to flush all dirty cache pages out to the hard disk 4 Press Enter Then type ddinstal 5 Press Enter The OS 2 Device Driver Installation window will appear and prompt you for the source and destination drives The source directory shows where to insert the IBM ServeRAID Device Driver Diskette The destination directory shows where the program will copy the device driver files 6 Click on Install Chapter 3 Installing Device Drivers and Utility Programs 41 42 IBM ServeRAID The program copies the following ServeRAID device driver statement to your CONFIG SYS file BASEDEV IPSRAID ADD The program copies the fo
109. om a server with the System Name of My Machine My Machine 1 6 gt 1 10 In this example the message indicates that the drive from Channel 1 SCSI ID 6 is now located at Channel 1 SCSI ID 10 The drive might have been physically moved to a new drive bay Action Press one of the following keys Chapter 5 Solving ServeRAID Problens 91 92 IBM ServeRAID F4 Retry Press this key after correcting the problem For example press F4 after you move the hard disk drive to its previously assigned location or after you install the original hard disk drives back in the server F5 Accept Press this key to accept the new state that the ServeRAID adapter or controller will assign to the drive For example the ServeRAID adapter or controller will assign the drive a state of defunct DDD or empty EMP Note A hard disk drive in the defunct state does not necessarily mean that you need to replace the drive Before you replace the drive ensure that 1 All cables are connected properly to the backplane or system board and to the hard disk drive Also ensure that all cables inside the server are connected properly 2 The hot swap drive trays are seated properly in the drive bay 3 If you have not already attempted to rebuild the drive try rebuilding it See Rebuilding a Defunct Drive on page 99 for more information After you perform these steps if the hard disk drive does not function properly replace the drive F6 Mod
110. on and the close icon 2 Menu Bar Displays the pull down menus for all supported functions 3 Tool Bar Displays the icons for the commonly used functions 4 Device Area Displays the state of each device connected to the physical channels of the ServeRAID adapter or controller and if applicable its array identifier 5 Status Bar Displays help for the area where the cursor is currently pointing Also displays the date and time 6 Status Window Displays messages regarding the operational status of each adapter or controller 7 Logical Drive Area Displays the number of logical drives created and the status of the logical drive 8 Adapter Area Displays the number and status of the installed ServeRAID adapters and controllers To start the WIN32 Based Administration and Monitoring Program 1 Do one of the following e Double click on the IBM ServeRAID Administration icon or e Select IBM ServeRAID Administration from the Start menu 2 The Administration and Monitoring Program starts in stand alone mode After this program loads you can access the ServeRAID adapters and controllers 58 IBM ServeRAID When the Main window appears e f you are running the program in the stand alone mode and you have ServeRAID adapters or controllers installed in your system the current settings of the installed adapters or controllers will appear on the screen e f you are running the program from a client with no ServeRAID adapters or con
111. on number of the bootable microcode loaded for the ServeRAID adapter or controller e Code Bik shows the current version number of the firmware loaded for the ServeRAID adapter or controller e Rebuild Rate shows the current speed setting for rebuilds High Medium or Low e Number of Defunct Drives shows the current number of Defunct physical drives e Number of Offline Drives shows the current number of Offline logical drives e Number of Critical Drives shows the current number of Critical logical drives Chapter 2 Using the Configuration Programs 27 e Config Updates shows the number of times that the configuration has been changed since it has been initialized When you initialize the configuration the Config Update resets to zero e Flash Pgms shows the current number of times that the Flash EEPROM has been written e Locked Bad Stripe or Blocked Drive identifies the logical drives that are affected Bad Stripe Drives indicates the area of a logical drive that is inaccessible Locked Stripe Drives is a reserved field Blocked Drives indicates the logical drives that are blocked You must unblock a blocked drive before you can use it See Logical Drive State Descriptions on page 18 for more information Viewing the Configuration You can select View Configuration from the Main Menu to view the number of each logical drive and to view the size RAID level state stripe unit size write policy re
112. or Online Rebuild and Hot Spare Standby Hot Spare drives are not responding Action Press F4 F5 F7 or F10 01 28 Explanation No configuration was found in drives or Online Rebuild and Ready Standby drives are not responding Action Press F4 F5 F7 or F10 01 38 Explanation No configuration was found in drives or Online Rebuild Hot Spare Standby Hot Spare and Ready Standby drives are not responding Action Press F4 F5 F7 or F10 01 48 Explanation No configuration was found in drives or Online Rebuild drives are not responding and unidentified drives were found Action Press F4 F5 F7 or F10 01 58 Explanation No configuration was found in drives or Online Rebuild and Hot Spare Standby Hot Spare drives are not responding and unidentified drives were found Action Press F4 F5 F7 or F10 01 68 Explanation No configuration was found in drives or Online Rebuild and Ready Standby drives are not responding and unidentified drives were found Action Press F4 F5 F7 or F10 01 78 Explanation No configuration was found in drives or Online Rebuild Hot Spare Standby Hot Spare and Ready Standby drives are not responding and unidentified drives were found Action Press F4 F5 F7 or F10 03 88 Explanation A drive was imported from another system and it has valid configuration and Online Rebuild drives are not responding Act
113. orage or ServeRAID controllers that you need to remove is on the system board do one of the following e If the CD ROM drive that you are using to install your operating system is attached to the integrated controller disconnect or remove all disk drives attached to the integrated controller e f only disk drives are attached to the integrated controller disconnect the SCSI or IDE cable for the integrated controller from the connector on the system board See the label inside the server cover for the location of the SCSI and IDE cable connectors Follow the instructions in Installing the Files while Installing UnixWare on page 49 then return here and continue with step 6 Power down the system Install any non ServeRAID disk storage adapters or controllers in the server then attach the drives to the disk storage adapters and controllers Install the first ServeRAID adapter or controller from the list you created in step 3f then attach the drives to the ServeRAID adapter or controller Turn on the system and allow UnixWare to discover the new disk storage adapters and controllers Power down the system Repeat steps 8 9 and 10 until all ServeRAID adapters ServeRAID controllers and drives are installed You can now partition and format the logical drives attached to the ServeRAID adapters and controllers See the information provided with UnixWare for more instructions Installing the Files
114. otal size in MB of the array Free Space in MB shows the amount of free space available in the array Number of Logical Drives shows the number of logical drives 1 to 8 defined for the array Number of Physical Drives shows the number of physical drives grouped in the array Logical Drive Information Panel When you select a logical drive from the Main Tree the following information appears in the Main Panel on the right Logical Drive Number shows the number 1 to 8 assigned to the logical drive Array Letter shows the letter A through H assigned to the array in which the logical drive resides Drive State shows the current state of the logical drive See Logical Drive State Descriptions on page 18 for descriptions of the states that might appear in this field RAID Level shows the RAID level 0 1 or 5 assigned to the logical drive Data Space in MB shows the amount of space in the logical drive defined for data storage Parity Space in MB shows the amount of space in the logical drive allocated for parity storage Date Created shows the date that you created the logical drive Write Cache Mode shows the current setting write through or write back for the logical drive Battery Backup Write Cache shows the current setting Enabled or Disabled for the battery backup cache device When the battery backup cache device is installed write cache is set to the write back mode e Merge Group Number appears if th
115. pears Select Ready Drives x Select 1 or more ADY Ready drives that will be used to create the new array Cancel 2 Select one or more Ready RDY drives for the new disk array from the Main screen of the Administration and Monitoring Program To select a RDY drive click the desired RDY button from the device area A disk array identifier appears beside each RDY drive added to the disk array If you change your mind about a selected drive select the button again to remove the selected drive from the disk array 3 Click on OK to define a logical drive for the new array A screen similar to the following appears 4 Select the appropriate RAID level from the pull down list Note The number of hard disk drives in the array determines the RAID levels available for the array Chapter 4 Starting and Using the Utility Programs 63 64 IBM ServeRAID e If the array contains one hard disk drive you can select only RAID level 0 for the logical drive e lf the array contains two hard disk drives you can select RAID level 0 or RAID level 1 for the logical drive e lf the array contains three or more hard disk drives you can select RAID level 0 RAID level 1 or RAID level 5 for the logical drive 5 Enter the Requested Space in the eniry field The ServeRAID program uses the maximum available space for the selected RAID level to calculate the default value that it assigns Note The a
116. penServer and UnixWare 33 for OS 2 and Netware 33 for Windows 32 installing administration and monitoring 34 IPSSEND and IPSMON installing 52 mini configuration 26 OS 2 administration and monitoring starting 42 ServeRAID programs installing 31 WIN32 Based Administration and Monitoring 32 WIN32 Based installing 34 Q quick path configuration 11 R RAID redundant array of independent disks See also ServeRAID adapter enhanced level 1 5 level O 4 19 level 1 4 19 level 5 5 19 level changing 66 67 supported levels 3 technology 3 viewing assigned levels 16 rate rebuild 15 23 27 read ahead cache 15 23 27 ready state 20 rebuild automatically 100 general information 99 guidelines 99 logical drives 70 99 state 20 REBUILD command 79 rebuild rate 15 23 27 rebuilding a drive 99 Index 105 removing a hot spare drive 13 replace and rebuild 25 resetting the alarm 61 response time 3 responses simultaneous 3 RESTORE command 77 right mouse button using 13 20 22 roll out commands server 77 S sample express configuration 11 screen configuration program 8 stripe unit size 3 saving configuration event log 8 20 21 scanning for drives 21 24 26 73 SCO screen configuration program 8 scrubbing data 15 SELFTEST command 81 send test alert 62 serial number drive 17 18 server roll out commands 77 ServeRAID adapter configuration program using 8 9 configuring an array 11 icon configure 21
117. program will log various messages Each message will contain an alert code and a location specifier e The alert code begins with the message type and number For example INF WRN or CRT followed by the message number e After the alert code comes the location specifier A specifies the adapter or controller number SID specifies the SCSI ID if required C specifies the channel number if required For example a message of CRTxxx A2C3SID04 signifies that a Critical condition CRTxxx was found on Adapter 2 A2 Channel 3 C3 SCSI ID 4 SIDO4 The IPSMON program can log the following messages based on the required condition Information Messages lt Date and Time gt INFO00 A1C SID no errors detected lt Date and Time gt INFO01 A1C SID rebuild started lt Date and Time gt INF0O02 A1C SID rebuild completed lt Date and Time gt INFO03 A1C SID synchronization started lt Date and Time gt INF0O04 A1C SID synchronization completed lt Date and Time gt INFO05 A1C SID migration started lt Date and Time gt INF0O06 A1C SID migration completed Warning Messages lt Date and Time gt WRNOO1 A2C3SID12 PFA Error detected Critical Messages lt Date and Time gt CRT001 A3C2SID04 dead drive detected lt Date and Time gt CRT002 A1C SID not responding to commands Chapter 4 Starting and Using the Utility Programs 85 86 IBM ServeRAID Chapter 5 Solving ServeRAID Problems This chapter describes the ServeRAID
118. r codes and startup messages This chapter also includes some basic information about rebuilding a defunct drive Notices Used in This Section This section contains notices to highlight information as follows e Notes These notices provide important tips guidance or advice e Attention These notices indicate possible damage to programs devices or data An attention notice is placed just before the instruction or situation in which damage could occur Copyright IBM Corp 1996 1998 Vv Vi IBM ServeRAID Chapter 1 Getting Started This section provides the information needed to configure an IBM ServeRAID controller These high performance redundant array of independent disk RAID controllers are ideally suited for data storage environments that require superior performance flexibility and reliable data storage This chapter contains Installation Overview 2 0 ee Understanding RAID Technology 0 00000 eee Interleave Depth and Stripe Unit Size aa ee ee Supported RAID Levels Copyright IBM Corp 1996 1998 Installation Overview This section contains reference configuration and administration information for the IBM ServeRAID controller The information that you will need to configure your IBM ServeRAID subsystem depends on the type of ServeRAID controller you are using and your familiarity with RAID technology A typical configuration of an IBM ServeRAID subsystem consists of
119. r define as hot spare drives then select a choice from the pop up list or Drag the drive or SCSI Channel icon from the Main Tree and drop it on the Array or Hot Spare Drive icon in the Main Panel on the right If you change your mind you can drag the icons back to the Main Tree to remove them from the configuration 5 After you select the data drives for your arrays and define your hot spare drives click on the Next button If you change your mind you can e Remove a specific drive from a newly defined array or delete an entire newly defined array To do this click on the Back button use the right mouse button to click on the specific drive or Array icon in the Main Panel on the right and then select Remove from New Array or Delete New Array e Remove a specific hot spare drive or all newly defined hot spare drives To do this click on the Back button use the right mouse button to click on the Hot Spare Drive icon in the Main Panel on the right and then select Remove New Hot Spare Drive or Remove All New Hot Spare Drives 6 Select a RAID level for the logical drive from the RAID pull down menu in the Main Panel See Supported RAID Levels on page 3 for descriptions of the supported levels Chapter 2 Using the Configuration Programs 13 7 Move the sliding bar in the Main Panel from right to left to allot data and parity space for the logical drive Notes a You can define from one to eight logical drives b
120. ration information for the server ServeRAID controllers arrays logical drives hot spare drives and physical drives that make up your ServeRAID subsystem You also can use this mode to change some of the ServeRAID controller settings Viewing the Device and Configuration Information To view the current settings 1 Click on the plus box next to the object in the Main Tree to expand that portion of the tree 2 Click on the icon for the server ServeRAID controller array logical drive hot spare drive or physical drive to view its current settings Detailed information about the selected device will appear in the Main Panel on the right The following pages provide descriptions of the device information that might appear System Information Panel When you select the server from the Main Tree the following information appears in the Main Panel on the right System Name shows the name you assigned to the server Number of Controllers shows the total number of ServeRAID adapters and controllers found in the server ServeRAID Controller Information Panel When you select a ServeRAID controller from the Main Tree the following information appears in the Main Panel on the right Controller Type shows the type of ServeRAID controller such as ServeRAID Il ServeRAID 3H or ServeRAID 3L BIOS Version shows the level of basic input output system code currently installed for the ServeRAID controller Firmware Version shows the
121. re drives are not responding a drive was found at the incorrect SCSI ID and unidentified drives were found Action Press F4 F5 F6 or F10 09 00 Explanation No error occurred Action No action is required 09 10 Explanation Hot Spare Standby Hot Spare drives are not responding Action Press F4 F5 or F10 09 20 Explanation Ready Standby drives are not responding Action Press F4 F5 or F10 09 30 Explanation Hot Spare Standby Hot Spare and Ready Standby drives are not responding Action Press F4 F5 or F10 OF 00 Explanation No error occurred Action No action is required OF 10 Explanation Hot Spare Standby Hot Spare drives are not responding Action Press F4 F5 or F10 OF 20 Explanation Ready Standby drives are not responding Action Press F4 F5 or F10 OF 30 Explanation Hot Spare Standby Hot Spare and Ready Standby drives are not responding Action Press F4 F5 or F10 Rebuilding a Defunct Drive When a hard disk drive goes defunct DDD a Rebuild operation is required to reconstruct the data for the device in its respective disk array The ServeRAID adapters and controllers can reconstruct RAID level 1 and RAID level 5 logical drives but they cannot reconstruct data stored in RAID level 0 logical drives To prevent data integrity problems the ServeRAID adapters and controllers set the RAID level 0 logical drives to Blocked during a Rebuild operation After the Rebuild operation completes
122. rious events in the event logs There are four types of event logs a device event log a hard event log a soft event log and a configuration event log See Chapter 2 Using the Configuration Programs on page 7 for information about the configuration event log To view the hard soft or device event logs 1 Click on the adapter on the Main screen of the Administration and Monitoring Program 2 Select an event log button from the bottom of the screen The Device Event Log contains event counters for each attached physical device as follows e Parity Event The ServeRAID adapter or controller detected a parity event while transferring data on the SCSI bus A large number of parity events might indicate a problem with the SCSI cable connectors or terminators on the SCSI channel e Soft Event These events are detected by the SCSI device and reported to the ServeRAID adapter or controller through the SCSI Check Condition status e Predictive Failure Analysis PFA The device has signaled the adapter or controller that it might fail in the near future e Hard Event These events are detected by the ServeRAID adapter or controller The most likely cause of a hard event is a problem with the SCSI cabling termination or adapter seating If one of these is not the problem have the system serviced e Misc Event These miscellaneous events are detected by the ServeRAID adapter or controller These events do not include p
123. rogram This program provides a graphical interface that enables you to monitor ServeRAID configuration changes being performed on your server while your server is fully operational You can create an array delete an array create a logical drive change the RAID level dynamically increase the logical drive size rebuild an array and perform other basic ServeRAID configuration functions You can run the WIN32 Based program in the stand alone mode only ona Windows NT server Or you can run the WIN32 Based program remotely on a Windows NT or Windows 95 client and access the client from a server that has TCP IP a background server component see Background Server Components on page 33 and one of the following operating systems installed e Microsoft Windows NT e IBM OS 2 Warp Server and OS 2 LAN Server e Novell NetWare 3 12 and 4 1X e SCO UnixWare 7 0 e SCO OpenServer 5 0 X Background Server Components The background server components are operating system specific program files that enable servers running Windows NT OS 2 NetWare OpenServer or UnixWare to act as the TCP IP interface for a remote client that has the WINS32 Based program installed These files install automatically when you use the instructions in this chapter to install the ServeRAID operating system specific device drivers Notes 1 Only one remote session at a time can access ServeRAID adapters and controllers using the background server component 2
124. rs in the primary and backup servers will appear to the Administration and Monitoring Program as if they were in one server b When a rebuild synchronization or logical drive migration is in process you cannot stop the IPSADM NLM module by pressing the Esc key To stop the module during one of these operations you must unload the IPSADM NLM module Using the Background Server Components 50 IBM ServeRAID This section provides information about background server component command line parameters and logging messages Using the Command Line Parameters To use the command line parameters provided in the background server components issue the IPSADM command in the following format IPSADM parameter 1 parameter2 and so on Valid command line parameters for the background server components are as follows The command displays the help for the valid parameters p number The p number command specifies the port number that the server will check for client connections The port number is a parameter used in TCP IP to distinguish among different services on a single server The default for the server utility programs is port number 1087 You can use this parameter to change the port number if another service on the system is using 1087 s filename The s filename command specifies the name of the file that contains security information For more about security information see Background Server Component Secur
125. ss Enter then refer to Chapter 4 Starting and Using the Utility Programs Insert the IBM ServeRAID Command Line Programs Diskette into the diskette drive Copy the program files from the IBM ServeRAID Command Line Programs Diskette by typing the following doscp r a unixware ipssend usr bin ipssend Press Enter then type doscp r a unixware ipsmon usr bin ipsmon Press Enter then change the access permissions by typing the following chmod 700 usr bin ipssend Press Enter then type chmod 700 usr bin ipsmon on page 57 for information to start and use the IPSSEND and IPSMON programs Installing IPSSEND for DOS To install IPSSEND for DOS 1 2 3 54 IBM ServeRAID Create a startable diskette To do this insert a blank diskette in diskette drive A then type format a s Press Enter Copy the ASPI device driver from the DOS directory on the IBM ServeRAID Device Driver Diskette to the startable diskette 4 Copy the IPSSEND EXE file from the DOS directory on the IBM ServeRAID Command Line Programs Diskette to the startable diskette 5 Leaving the startable diskette in the diskette drive restart the system then refer to Chapter 4 Starting and Using the Utility Programs on page 57 for information to start and use the IPSSEND and IPSMON programs Chapter 3 Installing Device Drivers and Utility Programs 55 56 IBM ServeRAID Chapter 4 Starting and Using the Utili
126. t 12 using 13 D data scrubbing 15 data space 14 16 64 data striping 3 date created 16 defining logical drive 13 24 defunct state 19 102 IBM ServeRAID deleting arrays 13 24 64 hot spare drives 13 description array 3 background server component 33 configuration paths 11 configuration program screen layout 8 custom configuration 12 express configuration 11 information mode 14 IPSSEND and IPSMON 52 logical drive 3 logical drive states 18 menu bar 21 physical drive states 19 RAID levels 3 RAID technology 3 stripe unit size 3 23 tool bar icons 20 WIN32 Based program 32 write cache modes 24 device driver installing 2 31 35 NetWare 3 12 installing 37 NetWare 4 1X installing 38 39 OpenServer installing 43 45 OS 2 installing 40 41 UnixWare installing 46 49 Windows NT installing 34 35 36 device event log 74 88 disable read ahead cache 23 disabling the alarm 61 disk array creating 11 63 deleting 13 24 64 increasing free space 68 disk mirroring 4 diskette images 34 drive capacities hard disk 12 drive states 18 drive type 17 DRIVEVER command 82 E ECS codes 94 empty state 19 enable read ahead cache 23 enabling the alarm 61 enhanced RAID level 1 5 ERASEEVENT command 80 error messages basic configuration status register codes 94 95 disk array 88 error messages continued extended status register codes 94 95 interrupt status port register codes 94 PFA 17 18 POST messages 88
127. t appears on the Actions pull down menu when you select a specific array icon from the Main Tree The following choices appear on the Actions pull down menu when you select the Logical Drives icon or a specific logical drive icon from the Main Tree e Create a Logical Drive in Array This choice appears on the Actions pull down menu in the Information mode if you select the Logical Drives icon and free space is available in one or more arrays Change Write Cache Mode to Write Through or Write Back These choices are available in the Information mode when you select a specific logical drive icon from the Main Tree When this feature is set to the write through mode the completion status of a write command is sent affer the data is written to the hard disk drive Under certain workloads you can improve performance by changing this setting to the write back mode where the completion status of a write command is sent after the data is copied to cache memory but before the data is actually written to the storage device Attention 1 You might lose data if a power outage occurs while using the write back mode without a battery backup cache device 2 If you do not have a battery backup cache installed and Enabled and you set this feature to the write back mode wait at least 10 seconds after your last operation before you turn off your system Failure to follow this practice can result in lost data Synchronize This choice is availab
128. t to assign RAID level 0 to one of the logical drives to take advantage of the speed offered with this RAID level You could use this logical drive to enter data that you back up each day and for which safety is not of primary importance that is data that you can re create easily You also might want to use a RAID level 0 logical drive when the work you are doing requires maximum capacity RAID Level 1 RAID level 1 provides 100 data redundancy and requires two hard disk drives With RAID level 1 the first half of a stripe is the original data the second half of a stripe is a mirror copy of the data but written to another drive Because the data is mirrored the capacity of the logical drive when assigned RAID level 1 is 50 of the physical capacity of the two hard disk drives in the array The following illustration shows data arranged in an array of two hard disk drives defined as one RAID level 1 logical drive Notice that the data on Drive B is a mirror copy of the data on Drive A Drive A Drive B ry Cy Data Stripe 1 Block 1 Mirror Stripe 1 Block 1 Data Stripe 2 Block 2 Mirror Stripe 2 Block 2 Data Stripe 3 Block 3 Mirror Stripe 3 Block 3 If one of the hard disk drives fails the ServeRAID controller switches read and write requests to the remaining functional drive in the array Enhanced RAID Level 1 When you group more than two physical drives into an array and you select RAID level 1 the ServeRAID
129. tain damaged data You must either re create install or restore the data from the most recent backup disk or tape to the RAID level 0 logical drive Critical Migrating A logical drive in the critical state that is undergoing a logical drive migration LDM Critical System The ServeRAID controller uses this reserved state during a logical drive migration LDM 18 IBM ServeRAID Drive State Meaning Critical A RAID level 1 or level 5 logical drive that contains a defunct physical drive is in the critical state A critical logical drive is accessible despite a physical drive failure Attention If the state of the logical drive is critical replace and rebuild the defunct drive as soon as possible to prevent the loss of data If a second drive fails before the first rebuild completes you might lose valuable data See Rebuilding a Defunct Drive on page 99 for more information Migrating The logical drive is undergoing a logical drive migration that is a change in RAID levels a change in logical drive size or an increase in free space Offline Okay The logical drive is offline and not accessible This state occurs if one or more physical drives in a RAID level O logical drive is defunct This state also occurs when two or more physical drives in a RAID level 1 or level 5 logical drive are defunct The logical drive is okay It is in a good functional state System
130. talling the ServeRAID device drivers if NetWare 3 12 or 4 1X already is installed The Administration and Monitoring Program files and the background server components for NetWare install automatically when you use the instructions in this chapter to install the ServeRAID device drivers for NetWare Installing the Files while Installing NetWare 3 12 The ServeRAID device driver for NetWare IPSRAID HAM is in the NetWare directory on the BM ServeRAID Device Driver Diskette You can use the INSTALL BAT file which is also in the NetWare directory on the diskette to copy all required files to your server directory The INSTALL BAT file will modify the STARTUP NCF file so that it will load the required NetWare modules Use the instructions provided in the NetWare 3 12 manual along with the following instructions to install the ServeRAID device driver background server component and Administration and Monitoring Program files while installing NetWare Version 3 12 1 Use the ServerGuide Diskette Factory to create an IBM ServeRAID Device Driver Diskette 2 After you create the diskette type the following at the command prompt to manually create the directory for NetWare md server 312 Note The SERVER 312 is the default NetWare 3 12 directory If you are using a different path be sure to specify the same path throughout the entire NetWare installation process 3 Press Enter 4 Change to the SERVER 312 directory on your hard disk
131. tected and that you should plan to replace the device No indicates that PFA errors were not found Physical Drive Information Panel When you select the Physical Drives icon from the Main Tree information about the total number of drives connected to each channel of the ServeRAID adapter or controller appears in the Main Panel on the right When you select a specific physical drive from the Main Tree the following information appears in the Main Panel on the right e SCSI ID shows the SCSI ID assigned to the drive e Channel shows the SCSI channel to which the physical drive is attached e Drive Type shows the type of physical drive Hard Disk CD ROM Tape Enclosure Removable Media or Unknown selected e Size in MB shows the total capacity of the drive in MB if the drive is a hard disk No value will appear if the physical drive is a CD ROM or Tape drive e Drive State shows the current state of the physical drive See Physical Drive State Descriptions on page 19 for descriptions of the states that might appear in this field Chapter 2 Using the Configuration Programs 17 e Array Letter shows the letter A through H assigned to the array in which the physical drive resides if the physical drive is part of an array e Vendor shows characters that represent the drive manufacturer e Product or Model Number shows characters that represent the product or model number for the drive e Serial Number shows the serial num
132. ted controller e f only disk drives are attached to the integrated controller disconnect the cable for the integrated controller from the IDE or SCSI connector on the system board See the label inside the server cover for the location of the IDE or SCSI controller connector 6 Follow the instructions in Installing the Files while Installing UnixWare on page 49 then return here and continue with step 7 7 Power down the system 8 Install any non ServeRAID disk storage adapters or controllers in the server then attach the drives to the disk storage adapters and controllers 9 Install the second ServeRAID adapter or controller from the list you created in step 3f on page 46 then attach the drives to the ServeRAID adapter or controller 10 Turn on the system and allow UnixWare to discover the new disk storage adapters and controllers 11 Power down the system 12 Repeat steps 9 10 and 11 until all ServeRAID adapters ServeRAID controllers and drives are installed 13 You can now partition and format the logical drives attached to the additional ServeRAID adapters and controllers See the information provided with UnixWare for more instructions Installing UnixWare on a Non ServeRAID Drive Use the instructions in this section if you are using multiple disk storage adapters or controllers you are installing UnixWare on a drive attached to a non ServeRAID adapter or controller and you intend to store only d
133. tents of the Device Event Log and the Adapter Soft and Hard Event Logs Supported operating systems Windows NT O S2 Netware OpenServer UnixWare and DOS Command IPSSEND ERASEEVENT Controller Options Replace e Controller with the ServeRAID controller number 1 to 8 e Options with one of the following DEVICE for the Device Event Log SOFT for the ServeRAID adapter or controller Soft Event Log HARD for the ServeRAID adapter or controller Hard Event Log Use the FMSTATUS command to display the progress of a format operation currently processing Supported operating system DOS Command IPSSEND FMSTATUS Controller Channel SID Replace e Controller with the ServeRAID controller number 1 to 8 e Channel with the channel number for the device 1 2 or 3 FORMAT GETEVENT SELFTEST e SID with the SCSI ID for the device 0 to 15 Use the FORMAT command to perform a low level format of a hard disk drive Attention When you issue this command all data on the drive will be lost Supported operating system DOS Command IPSSEND FORMAT Controller Channel SID Replace e Controller with the ServeRAID controller number 1 to 8 e Channel with the channel number for the device 1 2 or 3 e SID with the SCSI ID for the device 0 to 15 Use the GETEVENT command to display information about various unexpected events IBM uses the Soft and Hard Event Logs for development and debugging purposes only
134. termine the size of the logical drive For example a disk array consisting of three 1 GB hard disk drives with a requested RAID level 0 logical drive of 1000 MB will actually contain only 999 MB because the data is striped across all three drives with 333 MB on each drive 5 Click on OK to create the logical drive Chapter 4 Starting and Using the Utility Programs 65 66 IBM ServeRAID Notes 1 If you plan to use the Logical Drive Migration LDM feature do not define more than seven logical drives The LDM feature requires one free logical drive to perform the migration Refer to Logical Drive Migration Administration on page 67 for more information 2 If you plan to use the Change RAID Level function of the LDM feature you must assign the same RAID level to all logical drives within a single disk array Refer to Change RAID Levels on page 67 for more information Initializing Logical Drives l nitializing a logical drive erases the first 1024 sectors on the drive and prevents access to any data previously stored on the drive To initialize a logical drive 1 Select the desired logical drive from the Main screen of the Administration and Monitoring Program 2 Click on Initialize to initialize the drive 3 If you have initialized a RAID level 5 drive you must synchronize to ensure data integrity Go to Synchronizing Logical Drives Synchronizing Logical Drives The purpose of synchronizing logical dri
135. the stripe unit size This provides excellent overall performance when workloads are steady and sequential However if the workload is random or the system I O requests are smaller than the stripe unit size reading ahead to the end of the stripe might degrade performance When read ahead cache is set to Disabled the ServeRAID controller transfers data from a disk to local cache in increments equal to the system I O request size without reading ahead to the end of the stripe Change the Rebuild Rate This choice is available in the Information mode only You can select this choice to set the priority for Rebuild operations to High default Medium or Low When the rebuild rate is set to High the rebuild I O request gets high priority in the execution order When the rebuild request is set from High to Medium in a heavily loaded system it can increase the rebuild time but provide better system performance When the rebuild request is set from High or Medium to Low in a moderate to heavily loaded system it can increase the disk rebuild time but provide better system performance Change the Stripe Unit Size This choice is available in the Information mode only Attention After you configure an array and store data on the logical drives you cannot change the stripe unit size without destroying data in the logical drives The stripe unit size is the amount of data written on a given disk before writing on the next
136. the data from the most recent backup disk or tape to the RAID level O logical drive The following choice appears on the Actions pull down menu when you select a hot spare drive from the Main Tree e Remove from Hot Spare State This choice is available in the Information mode only Select this choice to remove a hot spare drive from the configuration and set the drive state back to Ready The following choices appear on the Actions pull down menu when you select a physical drive a physical drive icon or a SCSI channel icon from the Main Tree e Set Drive State to Hot Spare This choice is available in the Information mode only It appears when the physical drive that you select from the Main Tree is in the Ready state You can select this choice to add the drive to the configuration and to change its state from Ready to Hot Spare e Set Drive State to Online This choice appears in the Information mode and you can use it to change the state of a drive from Defunct to Online Attention You might lose data by setting a Defunct physical drive that is part of an array to Online e Replace Drive and Rebuild This choice is available in the Information mode only Select this choice when you want to physically remove a defunct drive from the system and install a good drive in its place Chapter 2 Using the Configuration Programs 25 e Change the SCSI Transfer Speed This choice is available in the Information mode only It appears wh
137. the prompt appears to specify the server boot path type c nwserver Notes a This instruction assumes that you installed NetWare in its default directory If you did not install NetWare in the NWSERVER directory on drive C modify step 13 accordingly b If any of the files you are installing already exist on the server NetWare will prompt you to save the older files Although it is not necessary to save the older files it usually is a good idea After the installation program copies all files you can edit parameters such as the ServeRAID slot number from the Driver IPSRAID Parameter Actions screen After you edit the parameters select Save Parameters and load driver to load the ServeRAID device driver Press Esc to exit the installation screens Note If you want NetWare to load the ServeRAID device driver automatically during startup you must add the appropriate LOAD command for example load ipsraid ham slot 1 to the NetWare startup command file usually C ANNWSERVER STARTUP NCF Chapter 3 Installing Device Drivers and Utility Programs 39 Installing Device Drivers for OS 2 40 IBM ServeRAID This section provides two sets of instructions for installing the ServeRAID device driver one that you can use during the initial OS 2 installation and one that you can use if OS 2 already is installed The ServeRAID Administration and Monitoring Program files and background server component for OS 2 install automatica
138. tions from the Main Menu of the Mini Configuration program Select Configure BIOS Settings from the Advanced Functions menu Use the Up Arrow 1 and Down Arrow J keys to highlight BIOS Support for Bootable CD ROM then press Enter to change No to Yes Note This also changes No to Yes next to Display Boot CD ROM Menu and BIOS Support for INT13 Extensions Ensure that the screen has Yes next to BIOS Support for Reading Partition Tables If not use the Up Arrow ft and Down Arrow J keys to highlight BIOS Support for Reading Partition Tables then press Enter to change No to Yes Note You must perform this next step to save the new settings Highlight Save Configuration to the ServeRAID Controller then press Enter The program displays a Configuration Saved message and then returns you to the Main Menu of the Mini Configuration program Press Ctrl Alt Del to restart the system Chapter 2 Using the Configuration Programs 29 30 IBM ServeRAID Chapter 3 Installing Device Drivers and Utility Programs This chapter provides information about the device drivers and utility programs available for the IBM ServeRAID adapters and controllers This chapter contains IBM ServeRAID Utility Programs 2 2 02 00 2 20 200 4 Administration and Monitoring Program 2 1 ee Programs for Windows NT and Windows 95 ww ee eee Background Server Components 20020005 Programs for OS 2 an
139. trollers a message will appear stating that no ServeRAID adapters or controllers are installed in your system 3 To access the server that contains the ServeRAID adapters or controllers select Network Settings from the Options menu 4 When the window appears prompting for Stand alone or Client Server click on the Client Server button 5 In the edit box type in the host name of the server that you want to access or Select the host name from the pull down list then click on Connect Note If security is enabled on the server you must enter a valid user name and password Using the Administration and Monitoring Program You can use the Administration and Monitoring Program to monitor your ServeRAID adapters and controllers view the ServeRAID configuration and associated devices rebuild an array create a logical drive create an array delete an array dynamically increase the logical drive size change RAID levels and much more Using the Options Pull Down Menu The following choices are available from the Options pull down menu on the Main Screen of the Administration and Monitoring Program e Network Settings e General Options e Alert Options Network Settings If you want to monitor the ServeRAID adapters and controllers across a network you must switch to client server mode You can use the Network Settings dialog box to select and connect to servers in your network that contain IBM ServeRAID adapters or controll
140. ts Interleave Depth and Stripe Unit Size With RAID technology data is striped across an array of hard disk drives This data distribution scheme complements the way the operating system requests data The granularity at which data from one file is stored on one drive of the array before subsequent data is stored on the next drive of the array is called the interleave depth You can control the interleave depth and maximize the performance of your ServeRAID controller by setting a stripe unit size that is close to the size of the system I O requests You can set the stripe unit size to 8 KB 16 KB 32 KB or 64 KB For example performance in transaction based environments which typically involve large blocks of data might be optimal when the stripe unit size is set to 32 KB or 64 KB however performance in file and print environments which typically involve multiple small blocks of data might be optimal when the stripe unit size is set to 8 KB or 16 KB The collection in logical order of these stripe units from the first drive of the array to the last drive of the array is called a stripe See page 23 for more information Supported RAID Levels Disk arrays are used to improve performance and reliability The amount of improvement depends on the application programs that you run on the server and the RAID levels that you assign to the logical drives The ServeRAID adapters and controllers support RAID level 0 RAID level 1 Enh
141. tte 1 6 After you complete the OS 2 installation insert the IBM ServeRAID Device Driver Diskette 7 From an OS 2 window type a Note The a represents the drive assignment for the diskette drive that contains the ServeRAID diskette 8 Press Enter Then type ddinstal 9 Press Enter The OS 2 Device Driver Installation window will appear and prompt you for the source and destination drives The source directory shows where to insert the IBM ServeRAID Device Driver Diskette The destination directory shows where the program will copy the device driver files 10 Click on Install e The program copies the following ServeRAID device driver and program files to the OS 2 subdirectory on your hard disk IPSRAID ADD IPSADM EXE and IPSRADM EXE e The program copies the ServeRAID IPSRADM HLP Help file to the OS2 HELP directory 11 Edit the CONFIG SYS file and verify that there is only one copy of the line BASEDEV IPSRAID ADD Notes a If you have more than one ServeRAID or SCSI adapter in your system make sure that the BASEDEV statement for the adapter controlling the startup boot device appears before the BASEDEV statements for other ServeRAID or SCSI adapters in the CONFIG SYS file b After you install any service packs check the path for the IPSRAID ADD device driver and verify that the correct device driver is installed 12 Restart the server Installing the Files after Installing OS 2 You can use the f
142. ty Programs This chapter provides the information needed to start and use the ServeRAID Administration and Monitoring Program IPSSEND program and IPSMON program This chapter contains Starting the Administration and Monitoring Program 58 Using the Administration and Monitoring Program 59 Using the Options Pull Down Menu 2008 59 Using the Administration Functions 63 Using the Monitoring Functions 0 0 022008 73 Starting the IPSSEND Program 2 ee 76 Using the IPSSEND Program 020000022 2b ee 76 Server Roll Out Commands 2 0 200 000550 77 Error Recovery Commands 20 000050 ae 78 Problem lsolation and Debug Commands 80 RAID Configuration Commands 0 000 20005 82 Starting the IPSMON Program 2 2 02200000020 005 83 Using the IPSMON Program 2 2 22 a 83 Copyright IBM Corp 1996 1998 57 Starting the Administration and Monitoring Program Before you start the ServeRAID WIN32 Based Administration and Monitoring Program review the following illustration to become familiar with the layout of its Main screen EDH ServelAl D Adieare iinet aed Mord me 5 __ Dei inca haat UTES E Descriptions of the numbered areas are as follows 1 Title Bar Displays the title of the application along with the minimize icon the maximize ic
143. ual at the following address on the World Wide Web http www pc ibm com netfinity clustering e Initialize the Controller Configuration This choice is available in both the Configuration and Information modes Select this choice to delete the ServeRAID controller configuration Attention After you initialize the controller configuration you will not have access to any data stored on the logical drives attached to the selected ServeRAID adapter or controller This choice deletes the existing configuration information sets all functional hard disk drives attached to the controller to the Ready state and deletes all logical drives defined for the controller This choice does not change any of the ServeRAID adapter or controller settings such as the stripe unit size rebuild rate and so on from their current or customized values Copy the Configuration from the Drives to the Controller This choice is available in the Information mode only it copies the configuration information stored on the hard disk drives to the ServeRAID controller This function is useful when you import previously configured drives from another system or when you replace the ServeRAID adapter or controller Disable or Enable Read Ahead Cache Mode These choices are available in the Information mode only When read ahead cache is set to Enabled default setting the ServeRAID controller transfers data from a disk to its local cache in increments equal to
144. umber 1 to 8 e Filename with the path and file name where the configuration is to be written e Oparm with the optional parameter NOPROMPT to override the user prompt Use the INIT command to initialize the first 0 5 MB of a logical drive This process will erase the partition tables on the drive and all data on the logical drive will be lost Chapter 4 Starting and Using the Utility Programs 77 INITSYNC SYNCH Supported operating systems Windows NT OS 2 NetWare OpenServer UnixWare and DOS Command IPSSEND INIT Controller DriveNum Oparm Replace e Controller with the ServeRAID controller number 1 to 8 e DriveNum with the logical drive number 0 to 7 e Oparm with the optional parameter NOPROMPT to override the user prompt Use the INITSYNC command to initialize and synchronize a logical drive at the same time This command works only on RAID level 1 and level 5 logical drives The command will erase the entire logical drive and all data on the logical drive will be lost Supported operating systems Windows NT OS 2 NetWare OpenServer UnixWare and DOS Command IPSSEND INITSYNC Controller DriveNum Oparm Replace e Controller with the ServeRAID controller number 1 to 8 e DriveNum with the logical drive number 0 to 7 e Oparm with the optional parameter NOPROMPT to override the user prompt Use the SYNCH command to synchronize the parity information on redundant logical drives If the parity
145. un the IPSSEND program from the operating system command line To start the IPSSEND program e If you are using OS 2 or Windows NT 1 Type c ipsadm ipssend 2 Press Enter Note The c represents the drive where OS 2 or Windows NT is installed e f you are using NetWare 1 From the console type load ipssend 2 Press Enter e If you are using DOS 1 Insert the bootable IPSSEND diskette that you created into diskette drive A then type a ipssend 2 Press Enter e f you are using OpenServer or UnixWare 1 Type usr bin ipssend 2 Press Enter Using the IPSSEND Program When you run the IPSSEND program with no command line parameters a list of available functions and their specific parameters appears All functions require a minimum set of parameters to run the command If you run the IPSSEND program with a specific function but without its required parameters specific help for that function will appear on the monitor There are four basic types of IPSSEND commands e Server roll out commands e Error recovery commands e Problem isolation and debug commands e RAID configuration commands 76 IBM ServeRAID Server Roll Out Commands The IPSSEND server roll out commands include the following BACKUP COPYLD RESTORE INIT Use the BACKUP command to save a ServeRAID adapter or controller configuration to a diskette or to a hard disk drive The ServeRAID adapter or controller configuration must be valid
146. us Report Register code BCS displays the Basic Configuration Status Register code and ECS displays the Extended Configuration Status Register code lf no errors occur ISPR aaaa EF10 BCS bb 0OFor09 ECS cc 00 If an error occurs refer to ISPR Interrupt Status Port Register Codes for the ISPR error codes and Basic and Extended Configuration Status Codes on page 95 for the BCS and ECS error codes ISPR Interrupt Status Port Register Codes 1xxx Explanation A flash checksum error occurred Action Have the system serviced 2XXX Explanation A code DRAM error occurred Action Have the system serviced 3xxx Explanation A NVRAM error occurred Action Have the system serviced 4XXX Explanation A timer cache memory controller error occurred Action Have the system serviced 5XXX Explanation A cache memory controller error occurred Action Have the system serviced 6xXxXx Explanation A cache DRAM error occurred Action Have the system serviced 7XXX Explanation A host local PCI bus interface error occurred Action Have the system serviced 8xXX Explanation A SCSI I O port error occurred Action Have the system serviced 9xxx Explanation A SCSI termination error occurred Action Check cable connections and device termination If the problem persists have the system serviced AXXX Explanation A SCSI I O port error occurred
147. using 22 adapter configure icon 21 copying drive configuration 71 72 initializing 72 monitoring event logs 74 settings changing 20 status information monitoring 73 adding physical drives 68 scan for drives 21 24 26 administration ServeRAID program 32 advanced functions mini configuration 27 using 28 advanced setting options 22 alarm 61 alert options 59 61 allotting data and parity space 14 array administration 63 configuring 11 create icon 21 creating 24 deleting 24 description 3 expanding 68 hard disk drive capacities 12 information 16 number of viewing 16 auto synchronization 15 22 25 66 background server component description 33 installing 34 35 name resolution 52 OpenServer 33 OS 2 33 starting 50 UnixWare 33 Copyright IBM Corp 1996 1998 background server component continued using 50 Windows 32 BACKUP command 77 bad stripes 28 basic setting options 22 battery backup cache 15 16 24 27 BCS codes 94 BIOS version 15 blocked logical drive 18 67 93 99 boot drive 12 14 Bootable CD ROM feature 27 29 button cancel 10 21 modify 12 cache battery backup 15 16 27 read ahead mode 15 23 27 write back mode 24 write cache mode 16 write cache mode changing 24 write through mode 24 cancel button 10 21 CD ROM configuration program starting 9 contents 34 CERTIFY command 80 changing bootable CD settings 29 RAID levels 67 SCSI transfer speed 26 settings 20 stripe unit size 23
148. veRAID adapter or controller follow the instructions in Installing UnixWare on a ServeRAID Drive e f you are installing UnixWare on a drive attached to a non ServeRAID adapter or controller and you intend to store only data on the drives attached to your ServeRAID adapters and controllers follow the instructions in Installing UnixWare on a Non ServeRAID Drive on page 47 Installing UnixWare on a ServeRAID Drive Use the following instructions if you are using multiple disk storage adapters or controllers and you are installing UnixWare on a drive attached to a ServeRAID adapter or controller Note If you are not using multiple disk storage adapters and controllers go to Installing the Files while Installing UnixWare on page 49 1 Install all ServeRAID adapters that you intend to use in your system 2 Using the ServeRAID Configuration Program create all of your arrays and define all of your logical drives 3 Make a list of all of the ServeRAID adapters and controllers including the order and slot number installed in the system To do this a Turn on the server b When the ServeRAID Mini Configuration prompt appears press Ctrl i When a system contains more than one ServeRAID adapter or controller a selection screen appears c The menu lists the ServeRAID adapters and controllers in order Select the first ServeRAID adapter or controller from the menu d Select Advanced Functions from the Main Menu
149. ves is to compute and write the parity data on the selected drives If the type of ServeRAID adapter or controller you are using does not support the auto synchronization and data scrubbing features manually synchronize your RAID level 1 and RAID level 5 logical drives weekly This does not alter data on the drive Synchronizing a logical drive verifies that the data redundancy for the logical drive is correct To synchronize a logical drive 1 Select the desired logical drive from the Main screen of the Administration and Monitoring Program 2 Click on Synchronize to synchronize the drive 3 The synchronization begins automatically and reports progress information on the screen Adapter 1 Synchronization Progress Note Only one synchronization command can be active at a time Unblocking Logical Drives When the ServeRAID adapter or controller performs a Rebuild operation on an array it reconstructs the data that was stored in RAID level 1 and RAID level 5 logical drives However the ServeRAID adapter or controller cannot reconstruct the data that was stored in any RAID level 0 logical drives in that array The data in the RAID level 0 logical drives is blocked when the ServeRAID adapter or controller detects that the array is valid but the data might be damaged After the Rebuild operation completes you can unblock the RAID level 0 logical drives and access them once again But remember the logical drive might contain d
150. w drives found old state new state ch SID Action This is an information message No action is required Auto rearrange Explanation Auto rearrange is enabled or disabled Action This is an information message No action is required Configured drives are missing Explanation When the ServeRAID adapter or controller detects that a previously configured drive is missing the following message appears Following drives not responding old state new state ch SID Where old state is the configured state of the drive new state is the state that the ServeRAID adapter or controller will assign to the drive ch is the channel where the drive was located previously SID is the SCSI ID for where the drive was located previously Examples of the possible state changes include Online to Defunct ONL DDD x y Ready to Empty RDY EMP x y Standby to Empty SBY EMP x y Rebuild to Defunct RBL DDD x y Hot Spare to Defunct HSP DHS x y Standby Hot Spare to Defunct SHS DHS x y Action Press one of the following keys F4 Retry Press this key after correcting a problem For example press F4 after you turn on the external storage enclosure that contains the hard disk drive F5 Accept Press this key to accept the new state that the ServeRAID adapter or controller will assign to the drive For example the ServeRAID adapter or controller will assign the drive a state of defunct DDD or empty EMP You can
151. y Alert Manager a Information e Rebuild started e Rebuild completed e Synchronization started e Synchronization completed e Migration started e Migration completed b Warning e PFA error detected c Critical e Dead drive detected e Adapter or controller is not responding to commands By knowing what these types of messages are you can configure the Netfinity Manager program with instructions for monitoring the server configuration and the appropriate action to take if an alert is given For example you could set the Netfinity Manager program to dial a specified phone number should a defunct drive be detected on any server across the network See the documentation provided with Netfinity Manager for more information Using the Administration Functions This section provides information about using the following ServeRAID administration functions e Array administration e Logical drive administration e Logical drive migration administration e Physical drive administration e Adapter administration Array Administration This section provides information about creating and deleting disk arrays Creating Disk Arrays You can use disk arrays to improve security performance and reliability a To create a disk array 1 Click on the icon on the Tool Bar or select Manage Disk Arrays from the Advanced pull down menu then select Create Disk Array A screen similar to the following ap
152. you can unblock the RAID level 0 logical drives and access them once again But remember the logical drive might contain damaged data Refer to Unblocking Logical Drives on page 67 for more information Before you rebuild a drive review the following guidelines and general information Guidelines for the Rebuild Operation e The replacement hard disk drive must have a capacity equal to or greater than the failed drive e lf the hard disk drive being rebuilt is part of a RAID level 0 logical drive the RAID level 0 drive is blocked You must unblock any RAID level 0 logical drives at the end of the rebuild operation If you use the Administration and Monitoring program to initiate the rebuild operation you can unblock the blocked RAID level O drive when the rebuild operation completes See Unblocking Logical Drives on page 67 for more information e Data in a logical drive with RAID level 0 is lost during the rebuild operation If you backed up your data before the drive failed you can restore the data to the new drive General Information about the Rebuild Operation A physical hard disk drive can enter the rebuild state if e You physically replace a defunct drive that is part of the critical logical drive When you physically replace a defunct drive in a critical logical drive the ServeRAID adapter or controller rebuilds the data on the new physical drive before it changes the logical drive state back to

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