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1. Figure 6 17 Save in Jaa SANAtray Manager Client c File name Jdebugdumpname rdd Save as type Debug Dump save file 1dd x Cancel Figure 6 17 Debug Dump Save File Dialog Box Navigate to and select the debug file name Click Save Once you have specified an appropriate debug file the Retrieve button becomes available in the Retrieve Debug Dump dialog box SANArray Manager Client Installation Guide and User Manual Maintenance Processes 6 Click Retrieve The Retrieval Status area displays details regarding the data dump such as firmware version abort code source file name and line number Data goes to the RDD file L 1x Retrieve Debug Dump r Destination File Selection C debugdumpname rdd Browse m Retrieval Status Data Read failed code 0x12f Figure 6 18 Retrieve Debug Dump Dialog Box 7 Click Cancel to close the Retrieve Debug Dump dialog box Performing a Controller Shutdown Controller Shutdown is only performed with Mylex External RAID Controllers The purpose of this activity is to cleanly shut down the controller system leaving the BBU charged Manual No 775084 6 15 Performing a Controller Shutdown Open the Shutdown option as shown in Figure 6 19 PLTGups Advanced Functions Shutdown Figure 6 19 Select Shutdown The Shutdown dialog box is displayed as shown in Figure 6 20 Shutdown Eton toy rire Fig
2. Hot Swap on page G 15 Hot Spare A physical disk drive not part of a system drive that the controller can use to automatically rebuild a critical system drive The hot spare drive must have at least as much capacity as the largest disk drive in the array or the rebuild may not start See also Hot Standby on page G 15 and Standby Replacement of Disks on page G 28 Glossary Hot Standby A redundant component in a fault tolerant storage system that has power applied and is ready to operate but which does not perform its task as long as the primary component for which it is standing by is functioning properly See also Hot Replacement of Disks on page G 14 and Hot Spare on page G 14 Hot Swap The exchange of a replacement unit in a storage system for a defective unit The exchange requires human intervention but the system can continue to perform its normal functions compare with Auto Swap on page G 2 Cold Swap on page G 6 and Warm Swap on page G 32 See also Hot Replacement of Disks on page G 14 Immediate RAID Availability See Background Initialization on page G 3 Interface A hardware or software protocol that manages the exchange of data between the hard disk drive and the computer The most common interfaces for small computer systems are ATA also known as IDE and SCSI 0 Input Output the transmission of information between an external source and the com
3. Manual No 775084 4 29 Mylex External RAID Controllers with Firmware 7 x Enable or disable by checking or unchecking any of the following Global Parameters Read Ahead Reads data to the next stripe boundary based on stripe size and retains in cache any data beyond the size of the actual read request Super Read Ahead SRA Extends the Read Ahead process by always reading an extra cache line on a read request and reading an additional cache line when a cache hit occurs Most useful for applications where read sequential data is high Background Initialization Not used on External RAID Controllers Configure the Rebuild Rate A rate of 50 assigns the maximum allowable resources to a drive rebuild or array expansion allowing the Rebuild or Expand to proceed at its fastest Lowering the number devotes more resources to I Os and consequently slows the Rebuild or Expand Array process Change any of the following Startup Parameters Spin up Change if you do not want automatic drive spin up Other choices are to spin up at power on or to wait for a command and then do an automatic drive spin up Devices Between Spins Number of devices to spin up at one time A low number lessens the likelihood of a power drain Initial Delay Number of seconds to wait before spinning up the first disk set Sequential Delay Number of seconds between consecutive device spin up cycles Advanced Controller Options In the Advanced C
4. Configuration e CC For Invalid LUN Disables the check condition affecting the handling of the Inquiry command when the referenced LUN is invalid Set the Host Bus Reset Delay Allows the controller to reset the host in failover and failback situations When Disabled no SCSI bus reset is generated on the host 7 14 generates reset this many seconds after the failover or failback occurs Immediate generates immediate reset with no delay This is host SCSI only Set Debug Port Usage Select SLP VT100 emulation or Debug mode Set Debug Port Speed Sets the baud rate for the serial port from 2400 to 19200 baud Fibre Controller Options The Fibre button only displays in the Controller Options dialog box when a Mylex Fibre Channel RAID Controller is currently selected Click the Fibre button in the Controller Options dialog box to inspect and or change Fibre options for External Fibre RAID Controllers These options should remain at their defaults unless you have a high degree of expertise with External Fibre RAID Controllers Fibre Controller Options M M fons p am oe pe m AEE i v gam F vo Sa g Figure 4 26 Fibre Controller Options Dialog Box Manual No 775084 4 27 Mylex External RAID Controllers with Firmware 6 x or Lower In the Fibre Controller Options dialog box Figure 4 26 you have several options Enable Disable Node Name Retention When enabled each controller shares
5. 5 22 SANArray Manager Client Installation Guide and User Manual Monitoring Performance Monitoring Statistics View measures RAID controller performance using operations such as Reads Writes Reads Writes Cache Hits etc A flexible settings page lets you choose which controllers targets and operations to monitor Past and present data can be viewed as a line graph pie graph or bar graph Settings can be saved and opened and statistics data can be captured saved and displayed Open Statistics View by clicking View gt Statistics View on the menu bar or the Statistics View icon as shown in Figure 5 17 v Global Status View Log Information Viewer Initialize Status Rebuild Status Consistency Check Status Expand Capacity Status Figure 5 17 Select Statistics View Settings When you open Statistics View the Settings page is displayed Figure 5 18 Here you will define the controllers channels and target physical devices or logical drives to include for statistical analysis You select an operation to analyze define a color and line segment to differentiate this analysis from others used for comparison and optionally save your settings and capture data to a file Manual No 775084 5 23 Performance Monitoring Statistics 204 32 130 200 pounne wno tU Chn Tgt T gt2 T gt Figure 5 18 Statistics View Settings You build a string which d
6. A physical device has failed Logical drive is critical A physical device has failed Logical drive has been placed onii 488 489 430 431 492 493 494 495 496 497 498 499 500 2001 01 04 09 53 2001 01 04 09 53 2001 01 04 09 53 2001 01 04 09 53 2001 01 04 09 53 2001 01 04 09 53 2001 01 04 03 53 2001 01 04 09 53 2001 01 04 09 53 2001 01 04 03 53 2001 01 04 09 53 2001 01 04 09 53 2001 01 04 03 53 For Help press F1 Figure 3 1 Opening Screen Components of the SANArray Manager Client Windows The major components of the SANArray Manager Client windows Figure 3 1 are described below 1 Item 1 is the menu bar There are five menus with several selections each The contents of the menus and the functionality of several of the most important selections will be described throughout this guide 2 Item 2 is the toolbar There are seven toolbar icons representing seven of the most useful functions available in SANArray Manager The identity of each toolbar icon and an explanation of the purpose of each will be described in later sections of this chapter 3 Item 3 is the server selection box When selected the box displays the names of each server group that is in contact with the current client Manual No 775084 3 3 Navigating SANArray Manager Client workstation Each group may consist of multiple servers You may select a specific server group to view or select All Se
7. Host to SANmapping Overview For External RAID Controller Firmware 6 x and above the Host to SANmapping feature restricts host access to configured logical drives Access to a configured logical drive is granted only to a single host or group of hosts providing limited security control of data in a Storage Area Network SAN environment where multiple hosts are connected to the controller The Host to SANmapping feature is intended for use in configurations in which multiple host computers attach to one or more Mylex controllers The host computers are attached to the controller s through a fibre channel arbitrated loop or through a switch making the logical drive accessible to all host computers By utilizing host to SANmapping each logical drive can be configured to be visible to a single host computer only The controller uses a World Wide Name WWN to uniquely identify host computers that have logged into the controller A list of valid hosts and their corresponding WWNs is provided in SANArray Manager to configure the host to SANmapping Once logical drives are configured the controller maintains a table of WWNs for each logical drive This table defines the hosts that are granted access to each logical drive and the controller port and the LUN number Host to SANmapping in SANArray Manager FW 6 x or above For External RAID Controllers using Firmware 6 x or above SANArray Manager implements Host to SANmapping by allowing the user
8. Other advantages are that LVD devices consume less power and can sense single ended devices on the bus and revert to single ended signaling Devices need to be Ultra2 SCSI LVD devices in order to take advantage of the LVD signaling Mylex AcceleRAID eXtremeRAID and DAC FL controllers are LVD controllers Manual No 775084 G 17 Megabit A million bits used as a common unit of measure relative to time in seconds as an expression of a transmission technology s bandwidth or data transfer rates Megabits per second Mbps is a frequent measure of bandwidth on a transmission medium Megabyte 27 1 048 576 bytes One megabyte can store more that one million characters Abbreviated as M or MB Mirrored Cache A cache memory that has duplicate data from another controller In the event of failure of the original controller the second controller can take the cached data and place it on the disk array Mirrored Hard Drive Two hard drives the computer sees as one unit Information is stored simultaneously on each drive If one hard disk drive fails the other contains all of the cached data and the system can continue operating Mirroring Refers to the complete duplication of data on one disk drive to another disk drive this duplication occurs simultaneously with each write operation each disk will be the mirror image of the other also known as RAID Level 1 see RAID Levels on page G 22 All Mylex RAID controllers suppor
9. Physical Size 70007 MB Failure Indicator Contig Size 87122 MB 50 Devstatuson m Device Errors Enclosure ft 5 Parit 3 Soft Errors 0 arity Errors 0 NOREEr iD Hard Errors 0 Misc Errors 0 re seore D woe Rebuild Prepare to Remove Locate Close Figure 6 2 Rebuild Button Available for This Disk Device 3 Click the Rebuild button in the Disk Device Information dialog box Mylex External RAID Controllers perform rebuilds automatically You need only click the Rebuild button to restart a stopped rebuild and only on slot 0 if duplex Rebuild runs and the Rebuild Status box appears see the previous chapter Close the box and continue or leave the box open until Rebuild has completed When rebuild has completed the selected physical device AND the logical drive s of which it is a part are returned to operational status If you cancel rebuild the device returns to its offline dead status red X and the logical drives that occupy this physical device all go to critical status yellow exclamation point You must complete a future rebuild to return the physical device and logical drive s to operational status Using the Flash Utility If you are upgrading your firmware to 7x or higher you must reboot the host system after completing this procedure 6 4 SANArray Manager Client Installation Guide and User Manual Maintenance Processes A Caution If Expand Array Expand Capacity is running or w
10. Startup amp Navigation Upon startup with defined servers SANArray Manager Client displays the opening screen consisting of the SANArray Manager window the Global Status View window and the Log Information Viewer Figure 3 1 SANArray Manager Client File View Administration Window Help foe PH ul aed e Global Status View Fremont Tech Pubs Lab z Log Information Viewer MPE DACFFX2 Sever Sowce Source Time Device Address Desc config_test config_test config_test config_test config_test config_test config_test config_test config_test config_test config_test config_test config_test 2001 01 03 21 27 2001 01 03 21 27 2001 01 03 21 27 2001 01 03 21 27 2001 01 03 21 27 2001 01 03 21 27 2001 01 03 21 27 2001 01 03 21 27 2001 01 03 21 28 2001 01 03 21 28 2001 01 03 21 28 2001 01 03 21 28 2001 01 03 21 28 ctl O chr 1 tot 104 ctl Ochr 1 tgt 112 ctt O chn 1 tgt 114 ctt O chn 1 tgt 116 ctt O chr 1 tgt 118 ctt O chn 1 tgt 120 ctt O chn 1 tat 124 ctt O chn 1 tgt 125 ctt 3 chn Otgt 25 ctt O chn Otgt 7 ctt O logdrv 0 ctt O chn O tgt 25 ctt O logdrv 0 A new hard disk has been found A new hard disk has been found A new hard disk has been found A new hard disk has been found A new hard disk has been found A new hard disk has been found A hard disk has been removed A hard disk has been removed A hard disk failed
11. View Product Information gt Read Documentation gt Install Adobe Acrobat Reader gt Exit Figure 2 1 Mylex RAID Management Software Installation Menu 2 2 SANArray Manager Client Installation Guide and User Manual Installation 3 Click the option called Install Global Array Manager This option is used to install the SANArray Manager Client Global Array Manager Setup will load the installation wizard 4 After a few moments the Welcome dialog box will display Figure 2 2 Click Next to proceed with the installation or click Cancel to end the installation procedure and return to the menu Figure 2 2 Welcome Dialog Box 5 When the Mylex Software License Agreement screen appears click Yes to accept the terms of the agreement and continue If you click No you will not be allowed to continue SANArray Manager Client installation Manual No 775084 2 3 Installation of SANArray Manager Client The Select Components dialog box is displayed as shown in Figure 2 3 At this point you will select the component s you wish to install Select Components Global Array Manager Client h yray Manager Client M Global Array Manager Server M Workstation Array Manager Figure 2 3 Select Components to Install 6 Select SANArray Manager Client for installation click the box if necessary to check the SANArray Manager Client option Note When installing the SANArray Manager Client you may a
12. allowed Host to Logical Drive Mapping Host to logical drive mapping associates hosts on the fibre channel loop to logical drives The hosts are displayed on the left side of the list including the state of the host and the host s identity either WWN or IP address m Host To Logical Drive Mapping 20 00 00 e0 8b 01 3a 02 x x x WALLACE x Not Connected Connected Found Change Host Tag Figure 4 54 Host to Logical Drive Mapping Identity The host identity is the WWN World Wide Name of a Host Bus Adapter HBA of a server computer on the IP network on the fibre channel loop An attempt is made to find the server Servers with multiple HBAs have an ordinal number in parentheses after the name IP address identifying the HBA The Change Host Display button allows you to toggle through the name IP address and WWN of the HBA The host states are defined as Found The host is logged on and found The IP address or host name is displayed A server may have more than one ma Connected The host is logged on to the fibre channel loop The host cannot be found 4 66 SANArray Manager Client Installation Guide and User Manual Configuration on the IP network The WWN of the host HBA is displayed on the network Not Connected This is a valid host that is not logged on to the loop Available hosts on the network are determined from the following e The list of servers defined in the serve
13. completed RAID Expansion completed on RAID 1 None 157 1 System drive LUN mapping has been written to config od None 176 4 Logical Drive background initialization started User may have started background initialization Firmware may have aoutomatically started background initialization None 177 4 Logical Drive background initialization stopped User may have stopped background initialization Firmware may have aoutomatically stopped background initialization None Manual No 775084 Overview Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 178 4 Logical Drive Background None background initialization initialization paused paused due to higher priority operation 179 4 Logical Drive Background None background initialization initialization restarted after restarted being paused 180 2 Logical Drive Background None background initialization initialization failed failed 181 4 Logical Drive Background None background initialization initialization completed completed successfully 256 1 Fan Failure Cable Replace fan connection broken Bad Fan 257 4 Fan has been Faulty fan has None restored been replaced Cable is connected properly 259 4 Storage cabinet fan Enclosure Follow enclosure is not present Management management Connecti
14. multiple drive groups super drive group This level provides redundancy through mirroring and better performance than Level 1 alone Level 30 Data is striped across multiple drive groups super drive group Maintains parity information which can be used for data recovery Level 50 Data is striped across multiple drive groups super drive group For data redundancy drives are encoded with rotated XOR redundancy Note The host operating system drivers and software utilities remain unchanged regardless of the level of RAID installed The controller makes the physical configuration and RAID level implementation RAID Migration A feature in RAID subsystems that allows for changing a RAID level to another level without powering down the system RAM Random Access Memory the built in readable and writable data storage that comes with or can be added to a computer Manual No 775084 G 23 Recovery The process of reconstructing data from a failed disk using data from other drives Redundancy The inclusion of extra components of a given type in a system beyond those the system requires to carry out its functions Replacement Table A table that contains information regarding which SCSI devices have been replaced by others through standby replacement RISC Reduced Instruction Set Computing architecture for an application specific processor ROM Read Only Memory built in computer memory containi
15. structures getting configuration system by power full PLEASE changes cycling when SHUTDOWN AND occurred since ever convenient RESET THE the last boot SYSTEM IN THE NEAR FUTURE A 14 SANArray Manager Client Installation Guide and User Manual Event Information Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 389 3 Controller has been reset Controller failed Controller was removed from the system Controller has been powered off None 392 4 393 3 394 4 BBU Present BBU Power Low BBU Power OK Controller is dead Controller has been removed Controller has been powered off A BBU unit was found on the controller BBU does not have enough power to enable the write data cache None If this message occurs without power failure replace the BBU None 395 0 Controller is gone System is disconnecting from this controller BBU has enough power to enable the write data cache None 396 4 Controller powered on Controller was removed from the system Controller has been powered off None 397 4 Controller is online New controller has been installed None Manual No 775084 A 15 Overview Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actio
16. 17 Target ID The SCSI ID of a device attached to a controller Each SCSI channel can have up to 15 attached SCSI devices target ID from 0 to 6 and 8 to 15 TCP IP Transmission Control Protocol Internet Protocol the basic communication language or protocol of the Internet It can also be used as a communications protocol in intranets and extranets When set up with direct access to the Internet a computer is provided with a copy of the TCP IP program just as every other computer that you may send messages to or get information from also has a copy of TCP IP Terabyte A measure of memory capacity 240 power or roughly a thousand billion bytes that is a thousand gigabytes Terminator A part used to end a SCSI bus Termination A method of matching transmission impedance of a bus to eliminate signal reflections from the physical ends of the bus Manual No 775084 G 31 Thin File Server A small server maximized for the sole purpose of serving files as opposed to computing Throughput The number of I O requests satisfied per unit of time usually per second TPC C Tpm C The Transaction Processing Performance Council TPC is a standards organization that measures transaction throughput of systems One of their benchmarks is Tmp C which reflects price and performance metrics TPC C reflects new order transaction rate a benchmark for transaction speed Mylex products have won consistently high TPC C results
17. 23 6 11 Enclosure Information 3 9 5 18 5 19 EPROM G 11 Error Codes A 1 Ethernet G 11 Event 3 4 description 3 5 5 3 device address 3 5 5 3 event ID 3 4 5 3 local time 3 5 5 3 sequence 3 5 5 3 severity 3 5 5 3 source 3 5 5 3 source time 3 5 5 3 Events 5 1 A 1 Exit 3 6 Exiting Global Array Manager server 3 12 Exiting SANArray Manager 3 12 Expand Array 4 40 4 43 4 53 External RAID Controller G 11 External RAID Controller Operation Overview 4 58 eXtremeRAID G 11 F Failback G 12 Failover G 12 SANArray Manager Client Installation Guide and User Manual Failover Port G 12 Failure G 12 Fast Ethernet G 12 Fault Tolerance Failure Tolerance G 12 Fibre Channel G 12 File List 2 2 File Server G 13 Firmware and BIOS Versions 5 9 5 10 Flash ROM G 13 Flash Utility 6 5 Force Simplex 4 26 4 34 Format G 13 G Gigabit G 13 Gigabyte G 13 Global Array Manager Server 1 2 Global Status View 3 7 Global Status Window 3 3 GUI G 13 H Hard Disk G 14 Hardware Requirements client 1 3 Help 3 11 3 13 Host G 14 Host Bus Reset Delay 4 27 4 34 Host I O Bus G 14 Hot Plug G 14 Hot Replacement of Disks G 14 Hot Spare G 14 Hot Standby G 15 Hot Swap G 15 l T O G 15 T O Bottleneck G 15 T O Bus G 15 T O Intensive G 16 I Os Per Second G 16 120 G 16 Immediate RAID Availability G 15 Manual No 775084 Index Industry Standard Architecture ISA G 16 Initia
18. 5 In the Operation drop down list box select an operation to monitor for this analysis string Examples of operations include Reads The number of reads issued by the controller to the physical device or the number of reads issued by the host to the logical device ReadKB The amount of KiloByte data read by the controller from the physical device or the amount of KiloByte data read by the host from the logical device ReadCacheHit The amount of KiloByte data read by the host from the cache or 100 total amount of KiloByte data read by the host from the logical device Read Reads 100 Reads and Writes ReadKB ReadKB 100 ReadKB and WriteKB Writes The number of writes issued by the controller to the physical device or the number of writes issued by the host to the logical device WritesKB The amount of KiloByte data read by the controller from the physical device or the amount of KiloByte data read by the host from the logical device Write Writes 100 Reads and Writes WriteKB WriteKB 100 ReadKB and WriteKB Read Write Reads and Writes RKB WKB ReadKB and WriteKB Manual No 775084 5 25 Performance Monitoring 6 In the Color drop down list box select a color to represent this analysis string graphically 7 In the Line drop down list box select a line style to represent this analysis string in a line graph 8 Your string is built Click New to add this string t
19. 9 in the SANArray Manager window Gol Ti Sl 2 Figure 3 9 Toolbar Each toolbar button corresponds to a function available from the menu bar k amp Fl al amp e Manual No 775084 Disk Configuration Wizard Brings up the RAID Assist dialog box for RAID controller configuration Scan Devices Scans for new recently added devices which are not yet identified within SANArray Manager Displays Controller Information Displays key information about the currently selected RAID Controller Statistics View Toggles the Statistics View window for the currently selected RAID controller Sign On Enables configuration and administration functions to Administrators and monitoring functions to Users Settings for Events Opens a dialog box for specifying the Alert Alarm Communication and Event Editor settings that you desire Help Contents Displays the on line help contents page 3 11 Exiting SANArray Manager Client Exiting SANArray Manager Client Exit SANArray Manager Client as shown in Figure 3 10 Open Configuration Save Configuration Clear Configuration Exit Figure 3 10 Select Exit Note We recommend leaving the SANArray Manager Client running as long as there are servers you wish to monitor or configure If you do exit you will be unable to receive events from GAM Server and you will not be informed of errors or status unless you restart SANArray Manager Client an
20. Alarm Sound check the box es corresponding to the event severity level s for which you would like to enable this type of alarm globally For example in Figure 4 9 all Level 0 and Level 1 messages events will result in an alarm sound locally an email page Level 0 only and fax to those individuals identified in Alarm Setup 4 8 SANArray Manager Client Installation Guide and User Manual Configuration Events are numbered from 0 for most severe to 4 for least severe and can be edited by the user Finish by doing one of the following e Click OK to accept the global alert settings and exit the Settings dialog box or e Click Cancel to leave original settings unchanged or e Click another Settings tab to set additional user preferences Alarm Setup The top half of the Alarm Setup dialog box lists the types of alarms that can be used Pager Fax Email Launch Application The lower half of the Alarm Setup dialog box lists the currently defined destinations recipients applications for the alarm type selected in the upper window Figure 4 10 Note Email requires MAPI or SMTP compliant messaging e g Microsoft Outlook as well as Microsoft Exchange Settings x Alert Preferences Alarm Setup Communication Event Editor A Pager 555 1234 H Fax EF Email Launch Application Modem setup string Hangup strii ATS amp F amp CTED2L1 ATHO o Figure 4 10 Settings Dialog Box
21. Click Close to close the Consistency Check Status box at any time Expand Capacity Status If an expand array also called expand capacity process is currently underway open the Expand Capacity Status box as shown in Figure 5 32 to monitor the progress of this process Status Expand Capacity Figure 5 32 Select Expand Capacity Status The Expand Capacity Status box Figure 5 33 displays the progress of a disk array capacity expansion Manual No 775084 5 37 Battery Backup Unit Monitoring and Maintenance Expand Capacity Status Controller 2 _ lt x Figure 5 33 Expand Capacity Status Box WARNING You should not attempt to cancel an Expand Array Expand Capacity process data loss will result Click Close to close the Expand Capacity Status box at any time Battery Backup Unit Monitoring and Maintenance If your controller is equipped with an Intelligent Battery Backup Unit BBU you will be able to open the BBU dialog box as shown in Figure 5 34 Administration Intelligent BBU Figure 5 34 Select Intelligent BBU 5 38 SANArray Manager Client Installation Guide and User Manual Monitoring Figure 5 35 shows the Intelligent BBU window for all External RAID Controllers Intelligent Battery Backup Unit 2 x Power Levels _ Battery Status Actions fioo Low Power Threshold unknown Battery Type C Set Low Power Threshold Recondition Battery a
22. Controller Information 0 0 eee eee 5 8 Mylex External RAID Controllers with Firmware 6X and LOWE eeeeseeeeeeeeeseeeeeeneeeeeneeeeeneeees 5 8 Mylex External RAID Controllers with Firmware 7X or Higher essceesseeesneeeeseeeeseeeeeneeeenes 5 10 Physical Device and Logical Drive Monitoring e eseeeeeeeees 5 11 Displaying Device Information eeeceesseeeeseeeeeseeeeeneeereaes 5 11 Device Information RAID Controller ceeeeeeeeeeeee 5 12 Device Information Disk Drive esseeri 5 13 Displaying Logical Drive Information ssec 5 15 Enclosure Monitoring and Management secese 5 17 Information Page rechi ake lai ie ens 5 18 Details Page c 202 svacienl ie a i es 5 19 Vital Product Dat in isitin Aei aeo ari E 5 22 Performance Monitoring ceesceeeeseeeeeneeeeeeeeeeeneeeeenaeeeeeneeteneeees 5 23 SOUINGS core vres belts o whence rise Sasso tar ss ante ese ahead nee cet 5 23 Lime lt Graph ereinen nnee raaa A AAR 5 30 ARETE EE E EN ATA ET 5 32 Bar Graph ssassn hed eieae aae a E naas 5 33 Process Status Monitoring cecceesceesceeeeeeeeeeeeeeseaeeeeeeeeeeeaeeeeetaas 5 34 Rebuild Status i c cns aeie tiniest eet eee series 5 35 Consistency Check Status 2 00 ceecceeeeseeseeeeeeeeeeeeeeeeeeeeneeeaes 5 36 Expand Capacity Status 00 eeccececeeeeeeeneeeeeeeeeeeneeeeeeeeeeriees 5 37 Battery Backup Unit Monitoring and Maintenance eee 5 38 PowerLevels 4 00 csiwauniin
23. Display Data 2 Select a data file to display or click Browse to locate a data file in a different directory Note Selecting the IP Address in the Data source box indicates that you wish to view data currently being generated by that server Only the currently selected server will be displayed 3 Click OK to open the data file for display or the server currently generating data You may view saved data by clicking the Line Graph tab and choosing Past in the Graph Data box You may view current data by clicking the Line Graph tab and choosing Present in the Graph Data box or by clicking the Pie Graph or Bar Graph tab Manual No 775084 5 29 Performance Monitoring Line Graph Click the Line Graph tab to open the Line Graph data page Figure 5 23 Statistics 204 32 130 200 x Settings Line Graph Pie Graph Bar Graph O 1 2 3 4 6 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 26 Visible Y multiplier Y offset Y autoscale Value Yes 1 0 0 Yes 63 66 Yes 1 0 0 Yes 77 65 Operation Line CtlO Chn Tgt0 T ot Reads CHO Chn Tatl Tat Reads i C Past Present Pause Graph Wptions 5 sec Apply ia Scale Unit Ee Data Figure 5 23 Statistics View Line Graph Display The Line Graph page displays data for the analysis strings specified in the display window in the form of lines generated on a grid with time units along the horizontal
24. G 20 Index 4 PCB G 20 PCI G 20 PCI Hot Plug G 21 Peripheral G 21 Physical Device G 21 Physical Disk Drive G 21 Pie Graph 5 32 Platform G 21 Plug and Play G 21 Preferences alarm setup 4 9 4 12 4 14 4 15 alert 4 8 communication 4 17 event editor 4 18 4 19 PROM G 21 Protocol G 22 Q Queue G 22 Queue Limit 4 23 4 32 R RAID G 22 RAID Adapters G 22 RAID Assist 1 2 3 8 3 11 4 66 Options 4 38 starting 4 39 welcome 4 40 RAID Controller 5 5 G 22 RAID Level 4 55 5 15 RAID Levels G 22 RAID Migration G 23 RAM G 23 Read Ahead 4 21 Rebuild 6 3 Rebuild Rate 4 21 4 30 Recovery G 24 Redundancy G 24 Relinquish Partner 5 9 5 11 Replacement Table G 24 Requirements 1 3 client hardware and software 1 3 Reset Propagation 4 26 4 34 SANArray Manager Client Installation Guide and User Manual Restrict Reassign 4 23 4 31 Retrieve Debug Dump 3 10 6 13 RISC G 24 ROM G 24 S SAF TE G 25 SAF TE Use of UPS 4 23 4 31 SAMCL LOG 5 2 SANArray Manager Client 1 2 dialog boxes 3 2 security 4 1 SANmapping G 25 Save Configuration 3 6 SCA G 25 Scan Devices 3 9 3 11 SCSI G 25 SCSI Adapters G 26 SCSI Drive G 26 SCSI Drive States G 26 SCSI Interrupt Steering Logic SISL G 27 SDRAM G 27 Sector G 27 Security Access Level guest 4 1 Security Access Levels 4 1 administrator 4 2 guest 4 1 user 4 2 Segment Size G 27 Selected File Server 3 4 Sequent
25. Groups Sets up server groups and individual server names or IP addresses within each group e RAID Assist Mylex s built in RAID Controller configuration utility Facilitates configuration tasks using either one step automatic configuration a configuration wizard assistant or a manual advanced level configuration option allowing more control over configuration parameters Sign On Define Server Groups Raid Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions Settings Figure 3 5 Administration Menu e Initialize Logical Drives Offers the ability to run a full initialization of logical drives at a time of your choice not just immediately 3 8 SANArray Manager Client Installation Guide and User Manual Startup amp Navigation following a new configuration If it s inconvenient to follow a configuration immediately with a logical drive initialization you can decline the initialization and use this menu item to start the process at a later time e Controller Information Displays key information about the currently selected controller e Enclosure Information Displays SES and SAF TE Enclosure Management information for Mylex External Fibre Channel Controllers such as the DAC960FF e Controller Options Sets various parameters for the selected Disk Array Controller Unl
26. I O activity currently underway for that enclosure a reset is carried out at the conclusion of the download The SES firmware will be changed It will take several minutes If you want to proceed confirm by typing the word YES Loap o Figure 6 12 WARNING Message for SES Download 6 10 SANArray Manager Client Installation Guide and User Manual Maintenance Processes Enclosure Discovery The Enclosure Discovery feature allows you to add an SES enclosure s to a configured system while the system continues to operate This feature starts the SES monitoring process for the new cabinet by refreshing the GUI You can then configure the additional disk capacity without rebooting the system Note Ensure that the enclosure is powered on before making an SES Discovery request or the devices will not appear in the Controller View window To make an SES Discovery request 1 Start Enclosure Discovery by selecting Administration gt Advanced Functions gt Enclosure Discovery Administration Sign Wn Deine Server Groups RAID Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions Flash Utility Shutdown SES Download Settings nelosu Retrieve Debug Dung Figure 6 13 Select Enclosure Discovery An Enclosure scan will be performed and will tak
27. Installation Guide and User Manual Event Information Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 129 4 Consistency check Consistency None is finished check completed successfully without detecting any errors 130 3 Consistency check User cancelled Restart is cancelled the consistency consistency check check if required 131 2 Consistency check Inconsistentdata See bad block on logical drive was found Bad and request error sectors were sense table for found A physical more device reliability information problem 132 2 Consistency check A logical device See request on logical drive became critical sense data for failed A logical device more failed information 133 1 Consistency check A physical See request failed due to device failed sense data for physical device more failure information 134 1 Logical drive has One multiple It may not be been made offline physical possible to device s failed recover from this error Contact your service representative 135 2 Logical drive is One physical Replace the critical device failed physical device Start the rebuild if required Manual No 775084 Overview Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 136 4 Logical drive has Rebuild None been placed on
28. Overview ceecceeceeeeeeeeeteeeeeeeteeeteaeeeeeeteneees 4 59 LUN Mapping in SANArray Manager FW 5 x or below 4 59 Host to SANmapping Overview ecceceeseeeeeeeeeeeeeeeeeeteetees 4 63 Host to SANmapping in SANArray Manager FW 6 X OF ADOVE o oo eee ee eee ee eee ceeeeee ee EA 4 63 Selecting the Topology ceceesceeeeeteeeeeeeeeeeeeeteeeeeeeneees 4 64 Selecting the Port 0 0 eeeeeeeeseeeeeeeeeseeeeeaeeeeeeteaeeeneeeseees 4 65 Logical Drive to LUN Mapping esseeesseeeseeeeesreeeees 4 65 Host to Logical Drive Mapping nessen 4 66 Set Sequential zeroki eiea as e oia aR EE 4 68 Clear All sirenita nl a a E aut a t 4 68 REENE A A E peactiatsietes 4 68 Cancel picts E AS E enti ie i heal ee ans 4 68 PADDY ETTE dbldestehinasei ca 4 68 Chapter 5 Monitoring IntrodUction vica cis Ahi ie ee et 5 1 Event Monitoring aside aici ne a e aai 5 1 Opening the Log Information Viewer eee eee 5 2 Opening an Event Information Window ceeeeeeeeeeeeeeeteees 5 4 Controller Monitoring eceecceeseeeeeeeeeeeceeeeeeeeeneeseaeeeaeeseeeeeaeeeeeeeeatens 5 5 Opening the Controller View eececceeeeeeeeeeeeeeeeeeeeeeeeneeeeeeeeeeees 5 5 Manual No 775084 vii All External RAID Controllers Except External Fibre to Fibre eceeeececseceeeeeeeeeseeeeeeseeeneeeeees 5 5 Fibre to Fibre RAID Controllers 0 ccecceeeeeeeeeeeeeeeetees 5 6 Displaying
29. SANArray Manager Window 3 3 Configuration 1 2 4 1 Configuration Summary 4 42 4 51 Conservative Cache G 6 Index 1 Conservative Cache Mode 4 23 4 31 Consistency Check 5 16 6 1 G 6 Controller G 7 Controller Information 3 9 5 8 Controller Model 5 9 5 10 Controller Options 3 9 4 20 4 21 5 9 5 11 Controller Present Fault Select 4 26 4 35 Controller Present Fault Signals 4 26 4 35 Controller Selection Box 3 4 5 5 5 6 Controller View 3 7 5 5 5 6 5 11 5 17 6 1 6 3 CPU G 7 Critical G 7 Cylinder G 7 D DAC960 Series G 7 DACCF G 7 Data Mining G 8 Data Transfer Rate 4 22 G 8 Debug 4 27 4 35 Debug Dump 6 13 Debug Port Speed 4 27 4 35 Debug Port Usage 4 27 4 35 Define Server Groups 3 8 4 4 Degraded Mode G 8 Desktop PC G 8 Device Driver G 8 Device Errors 5 14 Device Information 5 11 5 12 Device Inquiry Data 5 12 5 13 Devices Between Spins 4 22 4 30 Differential G 8 DIMM G 8 Disconnect On First Command 4 21 Disk G 9 Disk Array G 9 Disk Device Information 6 4 Disk Drive G 9 Disk Failure Detection G 9 Index 2 Disk Media Error Management G 9 Disk System G 10 Disk Traveling Drive Traveling G 9 Display Controller Information 3 11 Displaying add system 4 66 Drive Groups Drive Packs G 10 Drivers G 10 E ECC G 11 Edit Configuration 4 52 EISA G 11 Elevator Ordering Of Device Queues 4 24 Enclosure Discovery 3 9 5
30. This may slow normal operations Therefore schedule this operation accordingly To ensure that the battery is fully charged and properly conditioned 1 Choose Intelligent BBU from the Administration menu if the BBU dialog box is not currently displayed 2 Make sure the Charge Level is 100 If the battery is currently charging do not continue until the Charge Level is 100 3 Under Actions select Recondition Battery then click Apply 5 42 SANArray Manager Client Installation Guide and User Manual Chapter 6 Maintenance Processes Introduction Maintenance processes include the following activities which you may need to perform from time to time on arrays that use redundancy and or fault tolerance or to maintain the most up to date firmware maintenance releases e Running a consistency check on a logical drive to examine and optionally restore consistency parity Encountered errors may be written to the Error Table e Running a data rebuild on a physical drive that replaces a drive that went dead or offline e Upgrading Controller firmware BIOS boot block or BIOS Configuration Utility e Retrieving a Debug Dump e Performing a safe controller Shutdown Running a Logical Drive Consistency Check From time to time run a consistency check on each of your fault tolerant logical drives This check scans the logical drive to determine whether consistency data has become corrupted and needs to be restored I
31. Transfer Rate The rate at which data moves between the host computer and storage input or output devices usually expressed as a number of characters per second Warm Swap The exchange of a defective disk with a working disk while power is maintained to the system but I O operations have ceased Write Back Cache A caching strategy whereby write operations result in a completion signal being sent to the host operating system as soon as the cache not the disk drive receives the data to be written The target disk drive will receive the data at a more appropriate time in order to increase controller performance An optional cache battery backup can be used to protect against data loss as a result of a power failure or system crash Write Through Cache A caching strategy whereby data is written to the SCSI drive before a completion status is returned to the host operating system This caching strategy is considered more secure since a power failure will be less likely to cause loss of data However a write through cache results in a slightly lower performance G 32 Glossary XOR Exclusive Or a computer language function that generates parity in RAID systems this or that but not both 100Base T In 100 Mbps megabits per second Ethernet known as Fast Ethernet there are three types of physical wiring that can carry signals 100BASE T4 four pairs of telephone twisted pair wire 100BASE TX two pairs of
32. Works in conjunction with SAF TE disk array enclosures to detect removal of a failed drive and perform an automatic rebuild after installation of a replacement drive Coalesce Device Queues Joins data from adjacent I Os into a single T O to improve performance Queue Limit Maximum allowed queue depth for tagged commands to each attached drive Settings are from 1 no tags to 230 Set the following Automatic Reboot on Failure Options 4 32 Reboot Enable Allows the controller to reboot automatically after a failure and resume normal operation Reboot Limit Sets a limit of how many times a controller will attempt to automatically reboot to recover from firmware detected errors Settings are from 0 to 15 Re arm Interval Allows a minimum number of times that the controller must run before automatically re arming itself with a new set of automatic reboots Settings are from 0 to 15 The time intervals are described as follows Table 4 1 Re arm Intervals Re arm Interval Time Interval 0 Infinity will never re arm automatically 1 3 minutes 2 5 minutes 3 15 minutes 4 30 minutes 5 1 hour SANArray Manager Client Installation Guide and User Manual Configuration Table 4 1 Re arm Intervals Re arm Interval Time Interval 6 1 5 hours 7 2 hours 8 4 hours 9 8 hours 10 12 hours 11 16 hours 12 24 hours 13 2 days 14 4 days 15 7 days Expert Controller Options In
33. ability to have a discrepancy reported and corrected See also Parity Check on page G 20 G 6 Glossary Controller An adapter card RAID controller or other module that interprets and controls signals between a host and a peripheral device CPU Central Processing Unit the circuitry that performs the basic instructions that drive the computer Critical A Logical Drive on page G 17 is in a critical state if it has been configured at RAID level 1 3 5 or 0 1 and one and only one of its SCSI drives is not online A logical drive is considered critical because any failure of another of its SCSI drives may result in a loss of data See also Logical Drive States on page G 17 Online on page G 19 and Offline on page G 19 Note I O operation can only be performed with system drives that are online or critical Cylinder The tracks of a disk storage device that can be accessed without repositioning the access mechanism DACCF Disk Array Controller Configuration File Utility a diskette based configuration utility for RAID configuration DAC960 Series Disk Array Controller 960 Series a family of RAID controllers from Mylex Corporation The DAC960 series includes both internal PCI based RAID controllers and external RAID controllers The DAC960 series controllers use Intel s i960 microprocessor Manual No 775084 G 7 Data Mining The analysis of data for rela
34. and select the settings file you wish to open 3 Click Open The data generated by your analysis strings can be captured to a file This file can be opened later for examination or analysis Manual No 775084 5 27 Performance Monitoring To capture data to a file 1 Click Capture Data A Capture Data dialog box is displayed Figure 5 21 Capture Data 241 x File Name datat Browse Capture Type C Save Buffer Start Capture ome Figure 5 21 Capture Data to a File 2 With Start Capture selected type a filename for the data file to be saved or click Browse to find an existing data file and append to it 3 Click OK Data defined by your analysis strings will be generated You can see the data as a line graph pie graph or bar graph Data will be collected until you click the Stop Capture button You may wish to save the contents of the data buffer to a file for later examination To save the data buffer to a file 1 Click Capture Data 2 Select Save Buffer and type a filename for the data file to be saved or click Browse to find an existing data file and append the buffer to it 3 Click OK 5 28 SANArray Manager Client Installation Guide and User Manual Monitoring To display previously saved data 1 Click Display Data A display Data dialog box opens Figure 5 22 Display Data EI Data Source f204 32 130 200 Browse data1 sdf Cancel Figure 5 22
35. axis and percentage along the vertical axis To set the Time Scale Unit 1 Enter a number of seconds in the text box 2 Click Apply Each horizontal grid mark s value for example from 0 to 1 to 2 etc will equal the number of seconds you ve specified The Graph Data box allows you to see currently generated data from the selected server Present or previously saved data Past from the buffer or from a data file selected within the Settings page 5 30 SANArray Manager Client Installation Guide and User Manual Monitoring To pause or resume the data display Click Pause or Resume if previously paused To change Graph Options for a particular analysis string 1 Select the analysis string of interest in the display window 2 Click Graph Options You can change whether this string s data will be visible whether the data will autoscale along the Y axis the Y axis multiplier and Y offset Note If you want to compare data from different analysis strings their Y multiplier and Y offset settings should be the same To exit e Click Close to exit from Statistics View OR e Click another Statistics View tab Manual No 775084 5 31 Performance Monitoring Pie Graph Click the Pie Graph tab to open the Pie Graph data page Figure 5 24 Statistics 204 32 130 200 x Settings Line Graph Pie Graph Bar Graph Device CHO Chn Tat0 T gt2 T gtd Feads 504 CHO Chn Tat ata
36. below the determined threshold Discharge Battery Currently inactive Reserved for future use Fast Charge To initiate a fast charge on the battery select Fast Charge then click Apply A fast charge also occurs when the controller is powered on Stop Recondition Only enabled when a recondition process is underway To stop the recondition process select Stop Recondition then click Apply Apply Applies and saves the changes made in the BBU dialog box Cancel Exits the dialog box but does not stop the current action Conditioning the Battery A full battery condition cycle consists of discharging and recharging the battery The condition cycle must start with a fully charged battery Normally the battery is automatically recharged but in a new system or a system that has been subjected to a power outage recharging may be necessary and may take several hours Manual No 775084 5 41 Battery Backup Unit Monitoring and Maintenance E Note Do not interrupt the reconditioning process The system administrator must initiate the condition cycle manually The condition cycle must complete without an interruption of power In addition the operator must not interrupt the cycle by initiating a fast charge or another condition cycle If the cycle is interrupted for any reason the batteries must be recharged and the recondition process must be restarted Note During the reconditioning write back cache mode will be disabled
37. from the controller and saves the information to a file ed Functions Flash Utility Seti Shutdown oing SES Download Enclosure Discovery Retrieve Debug Dump Figure 3 6 Advanced Functions Submenu e Settings Opens a tabbed dialog box in which you can specify the Alert Alarm Communication and Event Editor settings that you desire Examples of such settings include type of alarm such as pager fax email etc modem baud rate COM port stop bits data bits parity event severity level event message editing and so on Window Menu The Window menu Figure 3 7 is a standard feature of Windows 95 98 Windows 2000 and Windows NT It is implemented as such in SANArray Manager Window Tile Cascade 1 Global Status View 2 Log Information Viewer v 3 Controller View 204 32 130 202 Controller 2 gamroot Figure 3 7 Window Menu Help Menu The Help menu Figure 3 8 identifies the on line help options available within the SANArray Manager Client e Contents Displays a list of available help topics e About SANArray Manager Displays the Windows standard About box 1 This feature is available only on limited Storage Subsystem platforms 3 10 SANArray Manager Client Installation Guide and User Manual Startup amp Navigation Contents F1 About SAN ray Manager Client Figure 3 8 Help Menu Toolbar and Toolbar Icons SANArray Manager Client contains a toolbar Figure 3
38. inertia te 5 39 Battery Status neern E E teins 5 40 ACHIONS arare eri era tend ratte Sains nee 5 41 Conditioning the Battery 00 0 eeeeseeeeeeeeeeeeeeeeeeeeeeeeens 5 41 Chapter 6 Maintenance Processes Introduction ti ccd det ae Ra i deena ie a eset ey 6 1 Running a Logical Drive Consistency Check cecceeeeeeeereeeneees 6 1 Running a Device Rebuild oo eeeeeeseeeeneereneeeeeeeeeeeneeeeneeeeeaeeeees 6 3 Using the FlashiWuility eee aae aee rerea a aeaa a ss evesee ieaishas dees Seanad 6 4 SES Download seire ranee r edie dd adalat livia 6 8 Enclosure Discovery csecceeseseeeeeeceseseeeneseeetesseeneneeeneneeeneneeeess 6 11 Retrieving a Debug DUMP 0 eeeeeeeeeeeeneeeeeneeeeeeeeeeeneetenneeensaeees 6 13 Performing a Controller Shutdown cesceeeceseeeeeeeeeeeeteeeeeaeeeneetaes 6 15 viii SANArray Manager Client Installation Guide and User Manual Appendix A Event Information Overview Glossary Index Manual No 775084 SANArray Manager Client Installation Guide and User Manual Chapter 1 Introduction Overview SANArray Manager Client software for Mylex External Controllers is used to e Monitor manage maintain and configure Mylex Disk Array Controllers and the physical and logical drives that are connected to these controllers even across remote servers e Monitor and manage physical devices that are connected to these adapters even across remote servers F SANAray Manager Cli
39. its node name with its partner controller and those names are used through all phases of failover and failback e Request Hard Loop IDs for each controller and port combination Enable a controller port combination by checking its check box Values allow use of the same Loop IDs all the time if the requested ID is available If the requested ID is not available an available Loop ID number will be automatically assigned Some Fibre HBAs work better with this e Set PCI Latency Control Controls the amount of data each Front End Fibre Protocol Processor can burst across the primary PCI bus before relinquishing bus ownership Settings are Short Medium Long A setting of Long is recommended e Set Frame Control Allows adjustment of the FC chip s frame size Recording Your Changes Click OK in the Basic Controller Options Advanced Controller Options Expert Controller Options and or Fibre Controller Options dialog boxes to accept the changes or the Cancel button to discard them 4 28 SANArray Manager Client Installation Guide and User Manual Configuration Mylex External RAID Controllers with Firmware 7 x Open Controller Options as shown in Figure 4 27 Administration Controller Options Figure 4 27 Select Controller Options Basic Controller Options In the Basic Controller Options dialog box Figure 4 28 you have several options Controller Options Figure 4 28 Basic Controller Options Dialog Box
40. logical and physical size of the logical drive e The stripe size and cache line size in use by the logical drive e Whether write back cache is enabled or disabled e The operational status of the logical drive e Out of the total amount of capacity configured on the controller the amount of capacity held by this logical drive shown in a bar graph If write back cache is disabled click the Enable Write Cache button to enable the cache If write back cache is enabled click the Disable Write Cache button to disable the cache and use write through caching If the Consistency Check button is enabled you may manually run a consistency check on this logical drive as discussed in the next chapter If the logical drive has been placed offline due to some external cause such as a power failure affecting an enclosure click Force On Line to return the logical drive to an active state A warning window appears asking for confirmation of the force online procedure A Caution Forcing a logical drive online should only be done in a power failure recovery situation Doing so at any other time may result in data loss Click the Locate button to blink the LED of the physical devices that comprise the Logical Drive to reveal their location Click OK to end the locate operation and return to normal status Click the Close button to close the dialog box 5 16 SANArray Manager Client Installation Guide and User Manual Monitoring Enc
41. such Mylex products programming or services in your jurisdiction About This Manual This installation guide covers the steps involved to install and use the client component of Mylex Corporation s SANArray Manager or the Workstation Array Manager with Mylex External Disk Array Controllers For information on installing and running the server component of SANArray Manager consult the appropriate Global Array Manager Server Software Installation and User Manual Conventions Throughout the manual the following conventions are used to describe user interaction with the product bold The user must enter the bold text exactly as shown pa Press the Enter key or Enter Press the key labeled Enter or Delete etc File gt Run Select the Run option from the pull down menu activated when the File menu pad is selected Note Supplementary information that can have an effect on system performance A Caution Notification that a proscribed action has the potential to adversely affect equipment operation system performance or data integrity WARNING Notification that a proscribed action will definitely result in equipment damage data loss or personal injury Contents Chapter 1 Introduction OVEIVICW E E E SE see oe 1 1 SANArray Manager Components cceeceeseeereeeeeeeeeneeeaes 1 2 Configuration Functions eeceeceeeeeeeeeeeeeeteeeeeeeeseeeteaeeeeeereeeees 1 2 Monitoring FUNnCti
42. the Expert Controller options dialog box Figure 4 30 you have several options Controller Options E m m M a a T a Figure 4 30 Expert Controller Options Dialog Box Manual No 775084 4 33 Mylex External RAID Controllers with Firmware 7 x Set any of the following Expert options Enable or disable by checking or unchecking 4 34 Simplex No RSTCOM Allows a controller not to assert a reset signal to its partner controller Simplex environments only On Q Full Give Busy When a command is received and the controller detects a full queue it will return a busy status rather than Queue Full This helps hosts that do not accurately deal with Queue Full status Busy Status During Failback Causes all pending commands to be quietly dropped during failback This is intended to help hosts that are confused by Queue Full Vendor Unique TUR Test Unit Ready Status Enables a vendor unique TUR effect A TUR sent to an offline LUN will get a hard error status returned No Pause On Controller Not Ready When the controller is not fully started certain commands encounter a pause This turns off the pause CC For Invalid LUN Disables the check condition affecting the handling of the Inquiry command when the referenced LUN is invalid Auto Restore Automatic Failback Default is Disabled When enabled in a dual active controller system Automatic Failback allows automatic recovery of a partner contro
43. with the Pager you ve set up click OK Your new Pager entry appears in the lower window of the Alarm Setup dialog box Refer to Figure 4 10 for an example Remove a Pager 1 Select the Pager alarm type in the upper window of Alarm Setup 2 Select the Pager entry to remove in the lower window of Alarm Setup 3 Click Remove A confirmation message is displayed as shown in Figure 4 12 Global Array Manager Ci 565 1234 will be deleted Do you want to proceed Yes I Figure 4 12 Remove Pager Entry Message 4 Click Yes to remove the Pager entry or click No to keep the entry Manual No 775084 4 11 Setting and Modifying User Preferences Add a Fax For fax notification Microsoft Exchange and Microsoft At Work Fax software must be installed on your system SANArray Manager supports only Microsoft At Work Fax under Windows 95 The Software field is not selectable The required fax software components should already be available as part of the normal Windows installation To add a fax follow these steps 1 Select the Fax alarm type in the upper window of the Alarm Setup dialog box Figure 4 13 Microsoft At Work Fax Figure 4 13 Fax Alarm Setup 2 Click Add 4 12 SANArray Manager Client Installation Guide and User Manual Configuration The Fax setup box is displayed as shown in Figure 4 14 Fax BE M Enabled Number 555 4321 Software Microsoft At Work Fax z Header Ta
44. workstations running SANArray Manager Client Events are displayed in the Log Information Viewer An event can be any of the following e Server attach and detach Guest User and Administrator e Error or warning condition in a RAID subsystem such as a power fan or drive failure Manual No 775084 5 1 Event Monitoring e Any administrative activity taking a drive off line killing or rebuilding a drive Note It is recommended that the SANArray Manager Client be kept active continuously as a minimized Windows application Opening the Log Information Viewer The Log Information Viewer is opened when the program is started and one or more controllers are detected as connected to the server s The viewer displays the contents of samcl log an ASCII text file This file contains a detailed chronological log of all the events that occur while this session of the program is executing By default the log file is named samcl log The log file name and location can be changed on the Alert Preferences page or in the samcl ini file Should you need to open the Log Information Viewer manually do so as shown in Figure 5 1 v Global Status View Controller View Statistics View Log Information Viewer Initialize Status Rebuild Status Consistency Check Status Expand Capacity Status Figure 5 1 Select Log Information Viewer The Log Information Viewer displays Figure 5 2 5 2 SA
45. 0 Host Device Information RAID Controller Device Information Figure 5 10 Figure 5 11 displays the following about the currently selected physical device Device Information RAID Controller 5 12 The vendor or source of the controller The controller s product identification such as DAC960SX The revision level of the hardware The back end bus width in bits Whether the following parameters are set to Yes or No Sync Soft Reset Linked Command Queuing ANSI Version supported Back end transfer speed and bus width device state SANArray Manager Client Installation Guide and User Manual Monitoring Disk Device Information Channel 0 Target 9 Lun 0 Figure 5 11 Disk Device Information Device Information Disk Drive The vendor or source of the drive The drive s product identification such as ST39173FC The revision level of the firmware in the drive The back end bus width in bits Whether the following parameters are set to Yes or No Sync Soft Reset Linked Command Queuing Loop ID number ANSI Version supported Disk drive serial number The physical capacity of the disk device in MB The back end negotiated transfer speed MB sec and back end negotiated bus width The configured size of the disk device in MB Sector size usually 512 bytes The current status of the disk online offline etc and a failure indicator if the disk drive has failed refer to Appendix A for a list of err
46. 4 8 Event Log ics ini anit tied Hie ee eed ne 4 8 Enable Global Alerts for Severity Level S ceceeee 4 8 Alarm S tup iniret a ae eters 4 9 Adda Pager oraaa e e t Adal 4 10 Remove a Pager ccceecceceeceeeeeeeeeseeeeeeneneeneeseneneneneeeees 4 11 Adda Fak Sae a A E 4 12 Remove a Faxe sielincivaliadi acini gia eee 4 13 Add EmMa ree eaaa N a a E EE E ENS 4 14 Remove Email rgis aae senate het ee 4 15 Add an Application to Launch ou ee eeeeeeeneeeteneeeeeneeeeenes 4 15 Remove an Application to Launch nsss 4 16 Propano S ienr piesal ink dagen a nae ak hides Ti ipaa 4 17 COMMUNICATION sarsii i a aaa 4 17 Baud Rate oneunsa mn a a eee ie 4 17 POW henna ae Naot dace a else eat tae case O a ee eas 4 17 Parity isctehci ee a cee ee ed 4 17 SlOP BitS ects gis ser ete adorei atte O as 4 18 Data Bit sitet n ea a ci ete i eas 4 18 Event Eqn T dsbstieciachabiaseieihitiees Gah aiden 4 18 Event ID User Event ID Severity Default eceeee 4 19 Alarm for the EVENT iraire aoaaa a 4 19 Event Message Text ccsccccsesceseeseeeeseneeeeeeeeeseeeeneeenes 4 19 DetaultAlll rara eaae rarer ar eeta e oaa aa aa aeti 4 20 Setting and Modifying Controller Options ecceeeeeseeeeeeeeeeeeeeeeee 4 20 Mylex External RAID Controllers with Firmware 6 x or Lower 4 20 Advanced Controller Options ecceeceseeeeeeeeneeeeeeenrees 4 23 Expert Controller Options ecceeceeseeeseeeeeeteeeeeneeeneeeen
47. 5 Assisted Configuration gt New Configuration gt Finish 1 Examine the Configuration Summary for details about the configuration that RAID Assist will set up 2 If you want to start over click the Welcome tab or Cancel button OR If you want to change your answers to any of the questions you were asked click the appropriate tab to return to that screen OR If you want to view the configuration before it is applied to the controller click the Details button You will be taken to an equivalent of the Disk Arrays page as shown in Manual Configuration except that you can only view and close the details window 3 If you accept the configuration as presented click the Apply button at the Finish page to apply the new configuration to the controller A warning confirmation box appears as shown in Figure 4 46 Manual No 775084 4 51 Running RAID Assist WARNING Eg Q Changing configuration is data destructive If you want to proceed confirm by typing the word YES cont _ Figure 4 46 WARNING Before Applying the Configuration 4 Type YES and click OK if you are sure you want to apply the new configuration and overwrite the old If you re not sure click Cancel Note In Assisted Configuration Add Logical Drive and Expand Array function very similarly to the New Configuration option In each case RAID Assist leads you step by step through the relevant questions for the task Manual Configuration Manual C
48. A for not supported on the current controller The number of host ports on this controller The number of drive channels on the controller The front end bus type SCSI FC AL of the controller The front end bus width for data transfers and front end bus speed MB sec The number of physical devices detected SANArray Manager Client Installation Guide and User Manual Monitoring e The number of logical drives configured on this controller e Host Connection Information HBA number channel ID and target ID e The status of a partner controller in a dual active pair e Whether the controller is set up to operate as part of a dual active fault tolerant pair e The port number port ID and World Wide Name if any of this specific controller and its partner controller Click the Kill Partner button to cause this controller s partner controller to be placed in reset The controller must be in duplex for this to happen This is required before Expanding an Array Click the Relinquish Partner button to cause this controller s partner controller to return to an operating state This is required after Expand Array completes Click the Controller Options button to view a dialog box of user definable controller parameters see Setting and Modifying Controller Options on page 4 20 Click the Close button to close the Controller Information window Physical Device and Logical Drive Monitoring This section describes how the
49. Alarm Setup Manual No 775084 4 9 Setting and Modifying User Preferences Add a Pager 1 Select the Pager alarm type in the upper window 2 Click Add The Pager setup box is displayed as shown in Figure 4 11 I Enabled Modem Setup String fat amp F amp C1 amp D2L1 Phone Prefix fatoT Number 555 234 Suffix Poo Delay eooo Modem Hangup String ATHO m Pager Type Numeric C Alphanumeric Advanced Test Cancel Figure 4 11 Pager Setup Dialog Box 3 In the Pager box e Enable or disable this Pager entry using the Enabled check box e Type the Modem Setup String or keep the default e Type a Pager Prefix or keep the default e Type the phone number of someone who will receive a page e Type a Pager Suffix if needed e Type a Pager Delay interval The value of each comma is 1 second e Type the Modem Hangup String or keep the default Note Please consult your modem manufacturer or modem documentation for the specific strings which work best with your modem 4 10 SANArray Manager Client Installation Guide and User Manual Configuration e Select the appropriate button for a Numeric or Alphanumeric pager 4 If you need to enter a Message Prefix Suffix or Delay interval click Advanced Type the desired information and click OK to return to the Pager setup box 5 To test the pager using the settings you ve input click Test 6 When you are satisfied
50. CSI Adapters Storage controllers for managing SCSI devices SCSI Drive A disk drive equipped with a SCSI interface sometimes referred to as a SCSI Disk Each disk drive will be assigned a SCSI address or SCSI ID which is a number from 0 to 7 0 to 15 under wide or Ultra SCSI The SCSI address uniquely identifies the drive on the SCSI bus or channel SCSI Drive States Refers to a SCSI drive s current operational status At any given time a SCSI drive can be in one of five states Ready Online Standby Dead or Rebuild The controller stores the state of the attached SCSI drives in its non volatile memory This information is retained even after power off Hence if a SCSI disk is labeled dead in one session it will stay in the dead state until a change is made either by using a system level utility or after a rebuild Each state is described below Ready A SCSI disk drive is in a ready state if it is powered on and is available to be configured during the current session but remains unconfigured Online A SCSI disk drive is in an online state if is powered on has been defined as a member of a drive group and is operating properly Standby A SCSI disk drive is in a standby state if it is powered on is able to operate properly and was NOT defined as part of any drive group Dead A SCSI disk drive is in a dead state if it is not present if it is present but not powered on or if i
51. Enclosure Monitoring and Management on page 5 17 Total Logical Capaciy 6024 MB Total Physical Capacty 69464 MB IB Enclosue Figure 5 6 Controller View Window Fibre to Fibre RAID Controller Manual No 775084 5 7 Controller Monitoring Displaying Controller Information Open Settings by clicking Administration gt Controller Information on the menu bar or the Controller Information icon as shown in Figure 5 7 Administration Controller Information Figure 5 7 Select Controller Information Mylex External RAID Controllers with Firmware 6x and Lower Figure 5 8 shows the Controller Information window for External RAID controllers with firmware 6x and lower Controller 0 Information Figure 5 8 Controller Information Previous External RAID Controllers 5 8 SANArray Manager Client Installation Guide and User Manual Monitoring The following information is displayed e The controller model e The firmware version residing on the controller e The cache size e Whether an Intelligent Battery Backup Unit is installed N A for not supported on the current controller e The number of host ports on this controller e The number of drive channels on the controller e The front end bus type SCSI FC AL of the controller e The front end bus width for data transfers and front end bus speed MB sec e The number of physical devices detected e The number of logical driv
52. Events for External Controllers ID Severity Description Details Actions 309 3 Uninterruptible None Power Supply Battery Low 310 1 Uninterruptible None Power Supply Failed 311 4 Uninterruptible None Power Supply Normal 320 1 Fan failure Cable Replace fan connection broken Bad Fan 321 4 Fan has been Faulty fan has None restored been replaced Cable is connected properly 322 4 Fan is not present Enclosure Follow enclosure Management management Connection is vendor s broken diagnostics and Management repair hardware is bad procedures Fan is not present 323 1 Power supply Cable Replace the failure connection is power supply broken Bad power supply 324 4 Power supply has Faulty power None been restored supply has been replaced A 12 SANArray Manager Client Installation Guide and User Manual Event Information Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 325 4 Power supply is not Management Follow enclosure present connection is management broken vendor s Management diagnostics and hardware is bad repair Power supply is procedures not present 327 3 Temperature is Room Replace fan above working limit temperature is Turn off the high Bad fan system Adjust the room temperature 328 4 Normal temperature Faulty fan has None has been restored been replaced Room t
53. Loop IDs all the time if the requested ID is available If the requested ID is not available an available Loop ID number will be automatically assigned Some Fibre HBAs work better with this Speed Controller Options The Speed Controller Option is only available if you are using a DACFFX2 controller In the Speed Controller options dialog box Figure 4 31 you have several options 4 36 SANArray Manager Client Installation Guide and User Manual Configuration Controller Options Controller 0 Port 1 AutoNego Controller 1 Port 0 2 Gb sec Controller 1 Port 1 AutoNego Figure 4 32 Speed Controller Options Dialog Box Set any of the following Host Ports options Host Ports Lists all of the host ports on the selected server One or more host ports may be selected simultaneously for making Speed changes Once a selection is made from the Host Ports list the Auto Negotiate 1Gb and 2Gb radio buttons are enabled Select All Selects all listed host ports as recipients of the changes made with the Apply button De select All De selects all host ports and causes all speed radio buttons to be disabled until at least one host port is selected Auto Negotiate Sets an Auto Negotiate speed for the host port s selected 1 Gb Sets a 1 Gigabits second speed for the host port s selected 2 Gb Sets a 2 Gigabits second speed for the host port s selected Note At this time 4Gb and 10Gb speeds are not supported they will
54. Low Power Threshold value Never Reconditioned Battery has not been fully discharged before it was charged up A new battery will have this checked until it has been fully discharged and then charged by the Recondition Battery selection under Actions Reconditioning Needed Battery has not been reconditioned within 30 discharge charge cycles Select Recondition Battery under Actions then click Apply SANArray Manager Client Installation Guide and User Manual Monitoring Reconditioning Active Process of discharging recharging the battery is underway Allow the process to complete or it will have to be repeated If you do need to interrupt reconditioning select Stop Recondition under Actions then click Apply Fast Charging Active Battery is being charged A fast charge also occurs when the controller is powered on Discharging Active Battery is currently discharging which is the first stage of a Recondition Battery action Actions The Actions area of the Intelligent Battery Backup Unit dialog box contains the following Set Low Power Threshold Edit the Low Power Threshold field under Power Levels To change the threshold to this new setting select Set Low Power Threshold then click Apply Recondition Battery To initiate a battery recondition sequence select Recondition Battery then click Apply The controller cache is placed in conservative cache mode Write Through while the battery s capacity remains
55. MOVING DATA gt SMARTER SANArray Manager Client Software for Mylex External Disk Array Controllers Installation Guide and User Manual P N 775084 00 08P4179 fINYLEX MOVING DATA gt SMARTER SANArray Manager Client Software for Mylex External Disk Array Controllers Installation Guide and User Manual Part Number 775084 00 08P4179 Copyright 2001 Mylex Corporation All Rights Reserved All contents of this manual are copyrighted by Mylex Corporation The information contained herein is the exclusive property of Mylex Corporation and shall not be copied transferred photocopied translated on paper film electronic media or computer readable form or otherwise reproduced in any way without the express written permission of Mylex Corporation Greetings Thank you for purchasing the Mylex SANArray Manager Client Software for Mylex External Disk Array Controllers Requests for technical information about this and other Mylex Corporation products should be made to your Mylex authorized reseller or Mylex marketing representative Please Notice IBM Mylex DAC960 DAC1100 SANArray Global Array Manager GAM Workstation Array Manager WSAM RAID EzAssist AcceleRAID and eXtremeRAID are trademarks or registered trademarks of International Business Machines Corp and its subsidiaries Intel Pentium and Itanium are trademarks or registered trademarks of Intel Corporation Novell and NetWare are registere
56. Manager Client after a client and server connection is made through sign on the SANArray Manager Client opens a window for each RAID controller SCSI HBA and their drives operating in that file server These controller windows are the SANArray Manager Client s Controller View Opening the Controller View Open the Controller View by double clicking any server icon in the Global Status View or as shown in Figure 5 4 v Global Status View Controller Views Statistics View Log Information Viewer Initialize Status Rebuild Status Consistency Check Status Expand Capacity Status Figure 5 4 Select Controller View All External RAID Controllers Except External Fibre to Fibre The Controller View window Figure 5 5 displays the following information about the controller currently selected in the controller selection box Manual No 775084 5 5 Controller Monitoring e The number of channels on this controller each channel is depicted as a tower e The physical devices present on each channel specifying the target ID capacity of the device device type and device status e The logical drives configured on the controller specifying the logical drive number capacity of the logical drive configured RAID level and logical drive status e Enclosure information click on the Enclosure button See Enclosure Monitoring and Management on page 5 17 Note Dual active control
57. NArray Manager Client Installation Guide and User Manual Monitoring Log Information Viewer config test 2001 01 03 21 27 58 ctt O chn 1 tat 104 A new hard disk has been found 2001 01 04 09 53 17 config_test 2001 01 03 21 27 58 ctt O chn 1 tat 112 A new hard disk has been found 2001 01 04 09 53 17 config_test 2001 01 03 21 27 59 ctt O chn 1 tat 114 A new hard disk has been found 2001 01 04 03 53 17 config_test 2001 01 03 21 27 59 ctl O chn 1 tat 116 A new hard disk has been found 2001 01 04 09 53 17 config_test 2001 01 03 21 27 59 ctt O chn 1 tat 118 A new hard disk has been found 2001 01 04 03 53 18 config_test 2001 01 03 21 27 59 ctt O chn 1 tat 120 A new hard disk has been found 2001 01 04 09 53 18 config_test 2001 01 03 21 27 59 ctt O chn 1 tat 124 A hard disk has been removed 2001 01 04 03 53 18 config test 2001 01 03 21 27 59 ctt O chn 1 tgt 125 A hard disk has been removed 2001 01 04 09 53 18 config test 2001 01 03 21 28 10 ctt 3 chn Otgt 25 A hard disk failed 2001 01 04 09 53 18 config_test 2001 01 03 21 28 45 ctt 0 chn Otgt 7 physical device has failed 2001 01 04 09 53 40 config_test 2001 01 03 21 28 45 ctt 0 logdrv 0 Logical drive is critical 2001 01 04 09 53 48 config test 2001 01 03 21 28 52 ctt 0 chn 0 tgt 25 physical device has failed 2001 01 04 09 53 51 config_test 2001 01 03 21 28 52 ctl 0 logdrv 0 Logical drive has been placed onli 2001 01 04 09 53 51 PE rj Figure 5 2 Log Inform
58. OM port at which your communication hardware resides Parity Select the type of parity for communication sessions None Even Odd Mark Space Manual No 775084 4 17 Setting and Modifying User Preferences Stop Bits Select the number of stop bits required for communication sessions 1 1 5 2 Data Bits Select the number of data bits required for communication sessions 4 5 6 7 8 Finish by doing one of the following e Click OK to accept the communication settings and exit the Settings dialog box or e Click Cancel to leave original settings unchanged or e Click another Settings tab to set additional user preferences Event Editor The Event Editor allows you to modify the characteristics of any event of the SANArray Manager Client ae Py EEn v Alen Sour miez Vv Jn Pager Iv fa Weunch Application M ETE Figure 4 20 Settings Dialog Box Event Editor In the Settings dialog box under the Event Editor tab Figure 4 20 you have several options 4 18 SANArray Manager Client Installation Guide and User Manual Configuration Event ID User Event ID Severity Default 1 Select an Event ID to edit from the Event ID list box 2 Type your own number for this event in the User Event ID list box or keep the default equal to the Event ID number 3 Type your own event severity level in the Severity list box or keep the default set by Mylex 4 Click the Default button to return al
59. Optimization Finish Figure 4 40 Assisted Configuration RAID Level With Fault Tolerance 4 46 SANArray Manager Client Installation Guide and User Manual Configuration RAID Level Tab If Fault Tolerance Was No Figure 4 41 choose between e Striping RAID 0 or Stand alone drive JBOD Fault Tolerance Raid Level Logical Drives Optimization Finish Figure 4 41 Assisted Configuration RAID Level With No Fault Tolerance Manual No 775084ssts lt i lt C eZ Running RAID Assist Logical Drives Tab Configure the following options Figure 4 42 for a logical drive 1 How many logical drives do you want to create 1 32 2 How much capacity do you want to use default 100 available space or equivalent in MB 3 Do you want to initialize logical drives Yes No This is done after the configuration has been applied Assisted Configuration New Configuration 204 32 130 202 Controller 2 Fault Tolerance Raid Level Logical Drives Optimization Finish Figure 4 42 Assisted Configuration Logical Drives Certain controllers allow Immediate RAID Availability of logical drives after configuration For these controllers initialization can take place in the background without the need to wait for full foreground initialization If you selected Yes and the controller supports background initialization the following screen will display Figure 4 43 4 48
60. SANArray Manager Client Installation Guide and User Manual Configuration Global Array Manager Figure 4 43 Background Initialization is Supported If this message appears click Yes to request a full foreground initialization of logical drives once the new configuration is applied OR Click No to take advantage of the background initialization support Once you have applied your configuration your logical drives will be available for immediate use Manual No 775084 ss i i s lt C 4 Running RAID Assist Optimization Tab Configure the following options Figure 4 44 for optimization 1 Choose between e Write cache enabled write back or e Write cache disabled write through 2 Select Stripe Size valid options are in the list Select Cache line size Valid cache line size values depend on the stripe size setting and are listed appropriately once you have selected a stripe size f Assisted Configuration New Configuration 204 32 130 202 Controller 2 Fault Tolerance Raid Level Logical Drives Optimization Finish Figure 4 44 Assisted Configuration Optimization 4 50 SANArray Manager Client Installation Guide and User Manual Configuration Finish Tab When you get to the Finish screen Figure 4 45 do the following Assisted Configuration New Configuration 204 32 130 202 Controller 2 Fault Tolerance Raid Level Logical Drives Optimization Figure 4 4
61. SANArray Manager Client monitors physical devices and logical drives Displaying Device Information The Controller View window details which physical devices are associated with each controller channel Each stack of drives represents the physical drives connected to a single channel on the controller A physical device can be a host controller a CD ROM drive disk drive tape drive etc Double click a physical device icon to display information about a particular physical device A physical device icon representing an external Fibre Channel controller may not be displayed in the stack of physical devices in the Controller View window The controller device information is available through the controller information window described on page 8 Manual No 775084 5 11 Physical Device and Logical Drive Monitoring A physical device icon representing an enclosure processor may not be displayed in the stack of physical devices in the Controller View window The enclosure information is available through the Enclosure button in Controller View or the Enclosure Information menu item in the Administration menu Host Device Information Channel 0 Target 7 Lun 0 m Device Inquiry Data vendor MYLEX Product DACSB0SX 5571 Revision 4419 Bus Width 16 Bits Vide Sync Yes Soft Reset No ANSI Version SCSI 2 Linked No CmdQue Yes p Device State Transfer Speed 20 MB Sec BusvVVidth 16 Bits VVide Figure 5 1
62. SANArray Manager Client z Sl c File name mycontia ecf Files of type Config Files ect x or Figure 4 6 Open Configuration Dialog Box 4 6 SANArray Manager Client Installation Guide and User Manual Configuration 2 Click Open to access the configuration file Changing the configuration is data destructive A warning message appears Figure 4 7 Figure 4 7 Open Configuration Warning Message 3 To confirm your decision to overwrite the existing configuration type YES then click OK or Click Cancel to stop without applying the saved configuration Setting and Modifying User Preferences Open Settings by clicking Administration gt Settings on the menu bar or the Preferences icon as shown in Figure 4 8 Administration Settings Figure 4 8 Select Settings ManualNo 775084ssss S ssSSSS A Setting and Modifying User Preferences Alert Preferences Alert preferences provides you options for setting desired alarm levels and event logging capabilities Figure 4 9 Settings Dialog Box Alert Preferences In the Settings dialog box under the Alert Preferences tab Figure 4 9 you have several options Event Log e Append events to your current log file or e Replace the log file overwrite it e Rename the log file Enable or disable the event logging function Enable Global Alerts for Severity Level s e For each type of alarm Email Pager Fax Launch Application and
63. T G 33 A AcceleRAID G 1 Active Negation 4 21 Active Active G 1 Active Passive G 1 ActiveTermination G 1 Add Logical Drive 4 40 4 43 4 53 Adding a Server Group to the Server Group List 4 4 Adding a Server to the Servers List 4 5 Advanced Functions Enclosure Discovery 3 9 flash utility 3 9 Retrieve Debug Dump 3 10 shutdown 3 9 ANSI G 1 Application Program G 2 Application Server G 2 Array G 2 ASIC G 2 Assisted Configuration 4 38 fault tolerance 4 45 logical drives 4 48 optimization 4 50 Options 4 43 RAID level 4 46 4 47 Asynchronous Data Transfer G 2 Auto Configuration 4 38 Auto Restore 4 26 4 34 Auto Swap G 2 Automatic Configuration options 4 40 Automatic Rebuild G 3 Manual No 775084 Index Automatic Rebuild Management 4 21 4 32 Automatic Switchover G 3 B Background Initialization 4 21 G 3 Bar Graph 5 33 BBU G 3 Berkeley RAID Levels G 3 BIOS G4 BIOS Config Utility G 4 Booting or Bootstrapping G 4 Bridge RAID Controller G 4 Burst Data Rate G 4 Bus G 4 Busy On Failback 4 26 4 34 Button Controls 3 2 Cc Cables G 5 Cache G 5 Cache Flush G 5 Cache Line Size 5 16 G 5 Cache Size 5 9 5 10 Caching G 5 CC For Invalid LUN 4 27 4 34 CD ROM G 5 Channel G 6 CISC G 6 Clear Configuration 3 6 Cluster G 6 Coalesce Device Queues 4 24 4 32 Components of the Opening Screen 3 3 3 6 global status view window 3 4 log information viewer 3 4
64. al active controllers also called Active Active on page G 1 controllers are connected to the same set of devices and provide a combination of higher I O performance and greater failure tolerance than a single controller Glossary ECC Error Correcting Code a method of generating redundant information which can be used to detect and correct errors in stored or transmitted data EISA Extended Industry Standard Architecture a bus standard for PCs extending the ISA on page G 16 architecture to 32 bits and allowing more than one CPU to share the bus EPROM Erasable Programmable Read Only Memory memory which can be erased and re used Ethernet An Ethernet local area network typically uses coaxial cable or special grades of twisted pair wires and is the most widely installed local area network technology The most commonly installed Ethernet systems are called 10BASE T and provide transmission speeds up to 10 Mbps External RAID Controller A RAID controller in its own enclosure rather than incorporated into a PC or server External RAID controllers are often referred to as a bridge RAID controller Mylex SAN Array Pro FL FF and FFx controllers are external RAID controllers eXtremeRAID A family of Mylex RAID controllers which offer uncompromising fault tolerance data availability superior configuration and management flexibility The eXtremeRAID family incorporates the latest performance technology by usin
65. alled but has failed The status of the power supplies in the enclosure Each power supply is designated with a number The status values are e Absent The power supply is not installed or has failed in an undetectable way e OK The power supply is optimal e Failed The power supply is installed but has failed The status of the temperature sensors in the enclosure Each temperature sensor is designated with a number The status values are e Absent The temperature sensor is not installed or has failed in an undetectable way e OK The temperature sensor is optimal Two additional items are displayed with this state Celsius Temperature range for SES is 19 to 235 range for SAF TE is 10 to 245 Over Temperature Warning OT e Failed The temperature sensor is installed but has failed The status of the alarms or speakers in the enclosure Each alarm is designated with a number The status values are e Absent The alarm is not installed or has failed in an undetectable way e OK The alarm is optimal One additional item is displayed with this state ON the alarm is currently on or sounding e Failed The alarm is installed but has failed 5 20 SANArray Manager Client Installation Guide and User Manual Monitoring The status of the enclosure s connection to one or more Uninterruptable Power Supplies UPS Each UPS is designated with a number The status values are A
66. ance RAID Adapters See RAID Controller on page G 22 RAID Controller Low cost RAID controllers that use SCSI channels on the motherboard RAID Levels Mylex disk array controllers support four RAID Advisory Board approved RAID 0 RAID 1 RAID 3 and RAID 5 two special RAID 0 1 and JBOD and three spanned RAID 10 30 and 50 RAID levels All DAC960 AcceleRAID and eXtremeRAID series controllers support these Glossary RAID levels See also Berkeley RAID Levels on page G 3 Level 0 Provides block striping across multiple drives yielding higher performance than is possible with individual drives This level does not provide any redundancy Level 1 Drives are paired and mirrored All data is 100 percent duplicated on a drive of equivalent size Level 3 Data is striped across several physical drives Maintains parity information which can be used for data recovery Level 5 Data is striped across several physical drives For data redundancy drives are encoded with rotated XOR redundancy Level 0 1 Combines RAID 0 striping and RAID mirroring This level provides redundancy through mirroring JBOD Sometimes referred to as Just a Bunch of Drives Each drive is operated independently like a normal disk controller or drives may be spanned and seen as a single drive This level does not provide data redundancy Level 10 Combines RAID 0 striping and RAID 1 mirroring spanned across
67. as stopped you must allow the process to run to completion BEFORE replacing controllers and flashing new firmware Otherwise data corruption may result Open the Flash Utility as shown in Figure 6 3 Administration Sian Une Demme Sewer Groups RAID Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions ee 5 Shutdown SES Download Enclosure Discovery Retrieve Debug Dump Figure 6 3 Select Flash Utility The Flash Utility is used to upgrade firmware by flashing the new code stored in an identified IMA Intelligent Messaging Architecture file to the on board flash memory As maintenance releases of this code become available this utility allows you to keep your controller current using SANArray Manager The Flash Utility dialog box appears as shown in Figure 6 4 Manual No 775084 6 5 Using the Flash Utility Flash Utility o Figure 6 4 Flash Utility Dialog Box The Flash Utility dialog box comes up with no information specified To do a flash upgrade 1 Type the name of the appropriate image file IMA in the Flash file selection box or click the Browse button to locate the file If you select Browse the Open Image file dialog box is displayed as shown in Figure 6 5 Open image file 2 x Brr el Se 924hp ima 41924hp
68. ated partner s None status 420 3 Relinquished None partner 421 3 Inserted Partner None 422 3 Dual Controllers None Enabled 423 3 Killed Partner None 424 3 Dual Controllers None entered Nexus 425 1 Controller Boot Wrong firmware Contact your ROM Image needs image file service to be reloaded downloaded representative to MAC address reload the Boot changed ROM Image 426 0 Controller is using MAC address Contact your default non unique lost or not set service world wide name representative to set the controller MAC Manual No 775084 A 17 Overview Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 518 4 Automatic reboot Controller has None count has changed rebooted Automatic reboot has rearmed itself or was reconfigured 640 3 Channel Failed Cable Plug in cable disconnected 641 3 Channel Online Cable None reconnected 642 2 Back End SCSI Bus Lost access to None Dead data on SCSI bus 643 4 Back End SCSI Bus Regained None Alive access to data on SCSI bus 644 1 Back End Fibre Lost access to None Dead data on Fibre Channel 645 4 Back End Fibre Regained None Alive access to data on Fibre Channel 700 3 Event Log Empty Tried to read None past last entry 701 3 Event Log Entries Tried to read an None Lost entry that does not exi
69. ation Viewer The Log Information Viewer displays the following information about events e Event ID Displays an icon showing whether the event is informational cautionary a warning etc plus the identification number assigned to this event e Severity The severity level of this event Click on the Severity column header to sort the events in ascending or descending order e Source The IP address or name of the file server that is the sender source of this event Source Time Year month day of the month time of day hh mm ss at the source file server s location when this event occurred e Device Address Relevant channel target activity and other data pertaining to why this event posted Description Text of the message describing what occurred e Sequence Seq Number representing where this event fell in a sequence of possibly related events Click on the Sequence column header to sort the events in ascending or descending order e Local Time Year month day of the month time of day hh mm ss at the local client workstation s location when this event arrived Manual No 775084 5 3 Event Monitoring Opening an Event Information Window If you wish to obtain additional information about any event displayed in the Log Information Viewer the program allows you to open an event information window Appendix A documents the entire list of events descriptions possible causes and actions To open th
70. bsent The UPS is not installed or has failed in an undetectable way OK The UPS is optimal Three additional items are displayed with this state AC Pwr the UPS is reporting an AC power failure DC Pwr the UPS is reporting a DC power failure Low Bat the UPS can power the system for only 2 to 5 more minutes Failed The UPS is installed but has failed Error status for troubleshooting purposes Error status for an enclosure is reported in a format similar to the following example 0 Addressing 25 02 03 04 05 0 is the error number Addressing is the error type 25 is the ALPA Arbitrated Loop Port Address of the drive in question 02 03 is the first known channel and target to which the ALPA is mapped 04 05 is the second known channel and target to which the ALPA is mapped An information field may need to scroll not visible in Figure 5 15 which contains most of the items listed on the Information page for easier cross reference Highlight an enclosure and the Locate button will become available Click the Locate button to blink the LED of the enclosure to reveal its location A locate enclosure dialog box will open click OK to end the locate operation and return to normal status Click the Close button to close the dialog box Manual No 775084 5 21 Enclosure Monitoring and Management Vital Product Data Select the Vital Product Data Tab Figure 5 16 This tab is only avai
71. ce performance or both Disk arrays are commonly used on servers and are becoming more popular on desktops and workstations See also Array on page G 2 Disk Drive A device for the electronic digital storage of information Disk Failure Detection A RAID controller automatically detects SCSI disk failures A monitoring process running on the controller checks among other things elapsed time on all commands issued to disks A time out causes the disk to be reset and the command to be retried If the command times out again the controller could take the disk offline Mylex DAC960 controllers also monitor SCSI bus parity errors and other potential problems Any disk with too many errors will also be taken offline See also Offline on page G 19 Disk Traveling Drive Traveling A process that occurs when the drives are placed in a different order than the original order Disk traveling can occur whether or not a drive has failed Disk Media Error Management Mylex controllers transparently manage disk media errors Disks are programmed to report errors even ECC on page G 11 recoverable errors If ECC RAM is installed the controller will correct ECC errors When a disk reports a media error during a read the controller reads the data from the Manual No 775084 G 9 mirror RAID 1 or 0 1 or computes the data from the other blocks RAID 3 RAID 5 and writes the data back to the disk that encount
72. closures The status of each enclosure identified by an icon and an enclosure number 1 32 as well as one of the following expressed in text e OK All components are optimal e Critical Some component has failed one more failure may result in data loss e Failed A failure has occurred that may result in data loss The enclosure type SES SAF TE The World Wide Name or Inquiry WWN INQ for the enclosure e For SES The World Wide Name as 8 hex bytes e For SAF TE The first 8 bytes of the Inquiry command s data The vendor identification The product identification The product revision level The number of drive slots in the enclosure cabinet Highlight an enclosure and the Locate button will become available Click the Locate button to blink the LED of the enclosure to reveal its location A locate enclosure dialog box will open click OK to end the locate operation and return to normal status Click the Close button to close the dialog box 5 18 1 An undetermined enclosure shows as a zero 0 In this case all information is presented as if there is a single enclosure with all the fans power supplies etc SANArray Manager Client Installation Guide and User Manual Monitoring Details Page Select the Details Tab to display Enclosure Information Details Figure 5 14 Enclosure Information x Information Details Vital Product Data Enclosure Status Acc Fans Power Tem
73. controller The Prepare Drive for Removal option for dual active controllers is only available by slot 0 Check the controller information to see which controller is in slot 0 The controller in slot 0 will be able to perform the Prepare Drive for Removal 5 14 SANArray Manager Client Installation Guide and User Manual Monitoring Click the Locate button to blink the LED of the physical device to reveal its location Click OK to end the locate operation and return to normal status In any Device Information dialog box Click the Close button to close the dialog box Displaying Logical Drive Information The icons on the right side of the Controller View window represent the logical drives also known as logical units or system drives created by the controller out of the available physical drives Double click a logical drive icon to display information about a particular logical drive Figure 5 12 Logical Drive 0 Information korce On Line Figure 5 12 Logical Drive Information for a RAID Controller Logical Drive Information displays the following about the currently selected logical drive The logical drive number in the window s titlebar The RAID level at which the logical drive is configured Manual No 775084 5 15 Physical Device and Logical Drive Monitoring e Whether the logical drive s configuration is optimized for speed optimized for capacity and fault tolerant Yes No e The
74. controller 1 assumes control MultiPort All ports are active This topology is supported on all Fibre attached products running Firmware v6 x or above Note that this topology does not provide transparent failover failback and requires an alternate path driver in the host Multi TID All ports are active This topology is supported on all Fibre products with ISP2200 hardware FFx MFF etc and Firmware v6 x or above This topology provides transparent failover failback and should not be used in conjunction with an alternate path driver SANArray Manager Client Installation Guide and User Manual Configuration Topologies may be changed with some side effects e When changing from inactive port to master slave mapping logical drives associated with controller 1 port 1 will be reassigned to controller 0 port 1 e When changing from master slave to inactive port port mapping associated with controller 0 port 1 will be reassigned to controller 1 port 1 e When changing from master slave or inactive port to multi TID or MultiPort the inactive ports will be enabled and all port mapping will remain unchanged e When changing from multi TID or multiPort to master slave or inactive all mapping on the inactive ports will be lost Selecting the Port Selection of the active port being configured is determined by the topology selected Inactive ports for the given topology are disabled and not available for selection The host to logica
75. curs Most useful for applications where read sequential data is high e True Verification Of Data Verifies accuracy of the data with data comparison e Write Through Verify During error handling this turns on Force Unit Access for reads and writes e Operational Fault Management Allows the controller to take autonomous actions when a failure occurs Do not disable this function unless specifically instructed to do so as part of a troubleshooting diagnostic activity Disable or enable by checking or unchecking the following option Wide Transfer On Host When disabled the controller will negotiate only narrow data transfers Doing this unnecessarily will result in slower performance 4 24 SANArray Manager Client Installation Guide and User Manual Configuration Expert Controller Options Click the Expert button in the Advanced Controller Options dialog box to inspect and or change expert level External RAID Controller Options These options should remain at their defaults unless you have a high degree of expertise with External RAID Controller Options Expert Controller Options 21x m General m Host Bus Reset Delay I Enable Simplex No RSTCOM Disabled Meene lett emnene HEIDE elaontin aj gt I Enable On G Full Give Busy I Enable Vendor Unique Test Unit Ready Status r Controller Present Fault Signals I Enable No Pause On Controller Not Ready l Enable SeA SetB M Disable CC For Invalid LUN I Enable Auto Restor
76. d reconnect to the server s Exiting GAM Server Some operating systems such as NetWare allow you to unload the GAM Server component while the file server remains running Other operating systems may require you to down the file server in order to exit from or remove the GAM Server component A Caution Be aware that downing a file server may result in data loss if I Os are in progress along the network Exit the GAM Server component only if necessary 3 12 SANArray Manager Client Installation Guide and User Manual Startup amp Navigation For More Information This concludes the Startup amp Navigation chapter For additional information on SANArray Manager options and functionality refer to other chapters in this installation guide and to the context sensitive online help file available from the Help menu by pressing F1 or by right mouse clicking an item on which you require help Manual No 775084 3 13 For More Information 3 14 SANArray Manager Client Installation Guide and User Manual Chapter 4 Configuration Introduction Configuration activities involve the following e Setting up server groups and servers e Setting or modifying user preferences such as alarms alerts event message editing and communications parameters e Setting or modifying controller options to suit your application needs e Modifying physical device options for data transfer or tag value e Creating modifyi
77. d trademarks of Novell Inc SCO and UnixWare are registered trademarks of The Santa Cruz Operation Ltd Windows Windows Me Windows NT Microsoft Outlook Microsoft Exchange and Microsoft At Work are trademarks or registered trademarks of Microsoft Corp Linux is written and distributed under the GNU General Public License which means that its source code is freely distributed and available to the general public Hayes is a registered trademark of Zoom Telephonics Inc All other referenced product names are trademarks of their respective companies and may be used herein for the purpose of identifying the products or services of their respective owners Unless otherwise noted companies names and data used in examples herein are fictitious Our Policy Although reasonable efforts have been made to assure the accuracy of the information contained herein this publication could include technical inaccuracies or typographical errors Mylex Corporation expressly disclaims liability for any error in this information and for damages whether direct indirect special exemplary consequential or otherwise that may result from such error including but not limited to loss of profits resulting from the use or misuse of the manual or information contained therein even if Mylex Corporation has been advised of the possibility of such damages Any questions or comments regarding this document or its contents should be addressed to Mylex Corporation at th
78. data grade twisted pair wire 100BASE FX a two strand fiber optic cable This designation is an IEEE shorthand identifier The 100 in the media type designation refers to the transmission speed of 100 Mbps The BASE refers to baseband signaling which means that only Ethernet signals are carried on the medium The T4 TX and FX refer to the physical medium that carries the signal Through repeaters media segments of different physical types can be used in the same system 10Base T Supports Ethernet s 10 Mbps transmission speed The most widely installed Ethernet local area networks LANs use ordinary telephone twisted pair wire When used on Ethernet this carrier medium is known as 1 OBASE T In addition to LOBASE T 10 megabit Ethernet can be implemented with these media types 10BASE 2 thinwire coaxial cable with a maximum segment length of 185 meters 10BASE 5 thickwire coaxial cable with a maximum segment length of 500 meters 10BASE F fiber optic cable The 10 in the media type designation refers to the transmission speed of 10 Mbps The BASE refers to baseband signaling which means that only Ethernet signals are carried on the medium The T Manual No 775084 G 33 represents twisted pair the 2 and 5 refer to the coaxial cable segment length the 185 meter length has been rounded up to 2 for 200 The F represents fiber optic cable Symbols EFI 6 9 Numerics 100Base T G 33 10Base
79. de and User Manual Glossary AcceleRAID The AcceleRAID family features high performance cost effective Ultra SCSI Ultra2 SCSI LVD and Ultra 160 SCSI to PCI RAID controllers and adapters for high end desktops workstations and entry level and mid range servers AcceleRAID controllers support PCI based motherboards with embedded SCSI chips and systems that have a PCI expansion slot designated for add in RAID controllers The AcceleRAID family consists of the 150 200 250 352 160 170 and 170LP controllers The 150 200 and 250 products can utilize the on board SCSI chips of servers and use SCSI interrupt steering logic SISL on page G 28 In addition the 150 and 250 products can work in any PC or server with a PCI slot whether or not they have SCSI interrupt steering logic The 150 and 250 have one Ultra2 SCSI LVD channel Active Active A synonym for Dual Active on page G 10 controllers Under normal operating conditions both controllers in a dual active controller configuration are actively processing I O Active Passive A synonym for Hot Standby on page G 15 Active Termination A type of terminator used in current SCSI channel setups which utilizes an active voltage regulator thus closely matching cable impedance ANSI American National Standards Institute a standards organization that promotes and facilitates understanding among qualified members for the implementation of agreed upon code and
80. discovered The administrator can edit the following parameters within the autoconfig dat file e Total number of physical disk drives available e Number of physical disk drives in each logical drive e RAID level RAID 0 RAID 1 RAID 3 RAID 5 RAID 0 1 and JBOD e Write cache policy write through WT or write back WB Manual No 775084 4 41 Running RAID Assist e Desired usable logical drive size in MB e Number of hot spare drives Multipliers can be added as part of the logical drive configuration to indicate replication of the logical drive definition on the same set of drives If the autoconfig dat file is not found the SANArray Manager will notify the administrator with an error window and then ask if the administrator would like the SANArray Manager to create an example file The example file will be the default file created at the time of the client installation The Finish screen displays Figure 4 36 Automatic Configuration New Configuration 10 1 19 100 Controller 0 Fault Tolerance Raid Level Logical Drives Optimization Finish Figure 4 36 Automatic Configuration gt New Configuration gt Finish Do the following 1 Examine the Configuration Summary for details about the configuration that RAID Assist will set up 2 If you want to start over click the Back or Cancel button or the Welcome tab OR If you want to view the configuration before it is applied to the co
81. ditional user preferences Setting and Modifying Controller Options Open Controller Options as shown in Figure 4 22 Sign On Define Server Groups Raid Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions Settings Figure 4 22 Select Controller Options Mylex External RAID Controllers with Firmware 6 x or Lower In the Controller Options dialog box Figure 4 23 you have several options 4 20 SANArray Manager Client Installation Guide and User Manual Controller Options m Global Parameters M IM Enable Read Ahead F Enable Disconnect On First Command P Enable Backaround Intielization Rebuild Rate so 4 _b Startup Parameters Sonu norae z Devices Between Spins eo H Initial Delay fe sec Sequential Delay fo sec Configuration 71x SCSI Parameters Channel o X C 16 Bit C 8 Bit Asynchronous SMHz C 8MHz C 10 MHz 20 MHz 40 MHz Transfer Speed 5 MBs GlUstenna Patanetets Js Enable clustering Controller Hosti l z Fibre Advanced Figure 4 23 Controller Options Dialog Box for External DAC e Enable or disable by checking or unchecking any of the following Global Parameters Automatic Rebuild Management Works in conjunction with SAF TE disk array enclosures to detect removal of a
82. e address shown on the cover The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law MYLEX CORPORATION PROVIDES THIS PUBLICATION AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow disclaimer of express or implied warranties or the limitation or exclusion of liability for indirect special exemplary incidental or consequential damages in certain transactions therefore this statement may not apply to you Also you may have other rights which vary from jurisdiction to jurisdiction Information in this publication is subject to change without notice and does not represent a commitment on the part of Mylex Corporation Changes may be made periodically to the information herein these changes will be incorporated in new editions of the publication Mylex Corporation reserves the right to make improvements and or changes at any time in the product s and or program s described in this publication It is possible that this publication may contain reference to or information about Mylex Corporation products machines and programs programming or services that are not announced in your country Such references or information must not be construed to mean that Mylex Corporation intends to announce provide or make available
83. e approximately 20 seconds After the scan has been requested the following dialog box Figure 6 14 will instruct you to await the completion Manual No 775084 6 11 Enclosure Discovery SANArray Manager Client E An Enclosure Discovery operation in progress Please await event notification Figure 6 14 Enclosure Discovery Operation Inprogress The new SES devices that were detected will be displayed in the Enclosure Information dialog box Figure 5 14 6 12 SANArray Manager Client Installation Guide and User Manual Maintenance Processes Retrieving a Debug Dump The Retrieve Debug Dump command allows you to retrieve an unread debug dump from the controller and save the information to a file extension RDD Offline applications must be used to examine the dump file SANArray Manager only supports retrieving and saving the data 1 Open Debug Dump by selecting Administration gt Advanced Functions gt Retrieve Debug Dump moupsi Advanced Functions Retrieve Debug Dump Figure 6 15 Select Retrieve Debug Dump 2 The Retrieve Debug Dump dialog box opens Retrieve Debug Dump Figure 6 16 Retrieve Debug Dump Dialog Box Manual No 775084 6 13 Retrieving a Debug Dump 3 Type the name of the destination dump file RDD in the Destination File Selection box or click the Browse button to locate a file If you select Browse the Debug Dump save file name dialog box is displayed 6 14
84. e controllers and RAID subsystems These additional abilities include configuration drive offline drive rebuild and drive state changes An Administrator initially signs on as gamroot and secures his or her access with a password Signing On To gain access capabilities beyond User level you must sign on to a server If you double click a server from the Global Status View window when you are not already signed on or click on any option that requires Administrator rights the Sign On dialog box displays automatically Figure 4 1 Server 20432130202 C Username gamroct Password o IV Remember password for this session ores Figure 4 1 Sign On Dialog Box 4 2 SANArray Manager Client Installation Guide and User Manual Configuration Or you may open Sign On at any time as shown in Figure 4 2 Administration Sign On Define Server Groups Raid Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions Settings Figure 4 2 Select Sign On Do the following 1 Type the password previously enabled on the server that corresponds with username gamroot This should provide Administrator access privileges 2 Check the box labeled Remember password for this session if you want SANArray Manager to refrain from Sign On messages each time you select a se
85. e event information window for a particular event 1 Check that the Log Information Viewer is displayed 2 Determine which event you would like more information about scroll the Log Information Viewer if necessary and single click anywhere along the event line or double click in the Event ID field An event information window for your selected event is displayed An example is shown in Figure 5 3 EventID E 135 Severity 2 Eg SOURCE 204 32 130 202 DEVICE ADDRESS ctl 3 logdrv 0 DESCRIPTION A logical drive is critical CAUSE Could be one or more of the following ne physical device failed REQUIRED ACTION eplace the physical device tart the rebuild if required Figure 5 3 Event Information Window A variety of information about the event is displayed to aid in troubleshooting The Event ID and Severity Level are displayed in the window s titlebar SOURCE DEVICE ADDRESS and DESCRIPTION redisplay information from the original event line 5 4 SANArray Manager Client Installation Guide and User Manual Monitoring The most useful fields are e CAUSE Possible reasons that the event occurred and e REQUIRED ACTION What you should do in response to this message Informational messages will most likely have no required actions Critical Serious Error and Warning messages may specify useful required actions 3 Click OK to close the event information window Controller Monitoring For SANArray
86. e p Debug Port Usage IV Enable Force Simplex SLP VT100 Speed fi 3 2K IV Enable Reset Propagation Debug att IV Enable Multi port Reset I Disable Busy on Failback Figure 4 25 Expert Controller Options Dialog Box In the Expert Controller Options dialog box Figure 4 25 you have several options Enable or disable by checking or unchecking any of the following options e Simplex No RSTCOM Allows a controller not to assert a reset signal to its partner controller Simplex environments only Left Symmetric RAID5 Algorithm Changes a Right Symmetric RAID 5 parity scheme to Left Symmetric This item is available only when there are no logical drives defined e On Q Full Give Busy When a command is received and the controller detects a full queue it will return a busy status rather than Queue Full This helps hosts that do not accurately deal with Queue Full status Manual No 775084 4 25 Mylex External RAID Controllers with Firmware 6 x or Lower Vendor Unique Test Unit Ready TUR Status Enables a vendor unique TUR effect A TUR sent to an offline LUN will get a hard error status returned No Pause On Controller Not Ready When the controller is not fully started certain commands encounter a pause This turns off the pause Auto Restore Automatic Failback Default is Disabled When enabled in a dual active controller system Automatic Failback allows automatic recovery of a partner control
87. efines a line of data on a line graph a section of a pie graph or a bar on a bar graph Each string consists of one or more controllers channels and physical devices or logical drives to include in the analysis an operation to be analyzed and a color and line style for line graphs to represent this string graphically To build an analysis string 1 In Device type select either physical devices or logical drives for the analysis string you re building In Device Selection do the following 2 Select one or more controllers to include in the analysis string Click All for all controllers For individual controllers make sure All is not highlighted 3 Select one or more channels to include in the analysis string Click All for all channels For individual channels make sure All is not highlighted 5 24 SANArray Manager Client Installation Guide and User Manual Monitoring 4 If you chose Physical under Device type select one or more targets to include in the analysis string Click All for all targets For individual targets make sure All is not highlighted If you chose Logical under Device type select one or more logical drives to include in the analysis string Click All for all logical drives For individual logical drives make sure All is not highlighted At the bottom of the Device Selection box a field displays the analysis string being constructed The symbol refers to All Next do the following
88. emperature was reduced 329 4 Temperature sensor Enclosure Follow enclosure is not present management management connection is vendor s broken diagnostics and Management repair hardware is bad procedures Sensor is not present 330 3 Enclosure access Enclosure Follow enclosure Critical management management connection is vendor s broken diagnostics and Management repair hardware is bad procedures 331 4 Enclosure access Enclosure has None has been restored been fixed or replaced Manual No 775084 Overview Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 333 1 Enclosure Soft Enclosure has Change index Addressing duplicate loop selector to Detected ids Soft enable hard Addressing addressing as Potential data per enclosure corruption manufacturer s specification 334 4 Enclosure services None ready 335 4 Access to Switch card or None temperature sensor temperature has been lost sensor has been removed 336 4 Access to power Switch card or None supply status connectivity has information has been removed been lost 337 4 Access to fan status Switch card or None information has connectivity has been lost been removed 384 4 Array management c If you did not server software expect a system started successfully reboot investigate 386 3 Internal log Too many Reboot the
89. ent A ve ya lil Y Global Status View mth SS enna Li Figure 1 1 SanArray Manager Client Manual No 775084 1 1 Overview SANArray Manager Components SANArray Manager has two components e Global Array Manager Server component which is part of the Mylex Disk Array Controller Software Kit e SANArray Manager Client component Each component handles specific tasks based upon the selected function Configuration Functions Configuration functions are easily performed using RAID Assist an intuitive wizard like utility in the SANArray Manager Client component that simplifies the process of setting up or reconfiguring a disk array Just answer a few brief questions and RAID Assist automatically does the rest Use Manual Configuration for more control over drive group setup or individual configuration parameters Monitoring Functions The Global Array Manager Server component collects and disseminates information on disk array status and resource utilization The SANArray Manager Client component organizes this information through an intuitive graphical display Errors and events are recorded in a log file and in the Log Information Viewer window and if a problem is serious enough to warrant immediate attention operators can be alerted via popup windows pagers fax or email if so desired Maintenance Functions The SANArray Manager Client manages or performs maintenance on individual disk arrays and dri
90. ered the error When a disk reports a media error during a write the controller issues a reassign command to the disk and writes the data out to a new location on the disk Since the problem has been resolved no error is reported to the system Disk System A storage system capable of supporting only disks Drive Groups Drive Packs A group of individual disk drives preferably identical that are logically tied to each other and are addressed as a single unit In some cases this may be called a drive pack when referring to just the physical devices All the physical devices in a drive group should have the same size otherwise each of the disks in the group will effectively have the capacity of the smallest member The total size of the drive group will be the size of the smallest disk in the group multiplied by the number of disks in the group For example if you have 4 disks of 400MB each and 1 disk of 200MB in a pack the effective capacity available for use is only 1000MB 5x200 not 1800MB Drivers A software routine that receives I O requests from higher levels within the operating system and converts those requests to the protocol required by a specific hardware device Dual Active A pair of components such as storage controllers in a failure tolerant storage system that share a task or set of tasks when both are functioning normally When one component of the pair fails the other takes the entire load Du
91. es configured on this controller e Host Connection Information HBA number channel ID and target ID e The status of a partner controller in a dual active pair e Whether the controller is set up to operate as part of a dual active fault tolerant pair e The slot number port number port ID and World Wide Name if any of this specific controller Click the Kill Partner button to cause this controller s partner controller to be placed in reset The controller must be in duplex for this to happen This is required before Expanding an Array Click the Relinquish Partner button to cause this controller s partner controller to return to an operating state This is required after Expand Array completes Click the Controller Options button to view a dialog box of user definable controller parameters see Setting and Modifying Controller Options on page 4 20 Click the Close button to close the Controller Information window Manual No 775084 5 9 Controller Monitoring Mylex External RAID Controllers with Firmware 7x or Higher Figure 5 9 shows the Controller Information window for new External RAID Controller Controller 1 Information Figure 5 9 Controller Information New External RAID Controllers The following information is displayed 5 10 The controller model The firmware version residing on the controller The cache size The memory size Whether an Intelligent Battery Backup Unit is installed N
92. ew value Manual No 775084 5 39 Battery Backup Unit Monitoring and Maintenance Current Power The current power level of the battery expressed as hours or minutes of charge This value will change as the battery is discharged or charged Maximum Power The highest level the battery has been charged up to expressed as hours or minutes of charge This value will change as the battery ages and is reconditioned The older the battery gets the less charge it can contain Charge Level The battery s charge level where 100 means the battery has been charged up to its maximum level Display Minutes Displays power values in minutes Display Hours Displays power values in hours and tenths of hours Refresh Updates the Power Levels and Battery Status groups It is useful during a lengthy operation such as a recondition to update the dialog without leaving it and re entering Battery Status The Battery Status area of the Intelligent Battery Backup Unit dialog box contains the following Battery Type The battery pack type Available options are Ni Cad or Unknown Version Version number for the controller Version selection numbers are from 0 to 255 The version number used for the first release is 1 for the controller production release The following are read only checkbox items which indicate the battery status 5 40 Low Power Alarm A low power condition exists as defined when the Current Power value drops below the
93. f 8 automatic replacements in any session from power on reset to the next power off reset When the limit of 8 is reached and a disk failure occurs the standby replacement will occur but will not be recorded in the replacement table To clear the standby replacement table reboot the system from a DOS bootable floppy run the configuration utility and select the option view update configuration from the main menu A red box labeled Drive Remap List will be displayed Selecting the box will allow you to continue You should save the configuration without making any changes and exit the configuration utility This will clear the replacement table You may now proceed to boot your system and continue normal operations In normal use the replacement table limit of 8 should not cause any problems Assuming that a disk fails about once a year drives we support generally come with a 5 year warranty the system would run continuously for a minimum of 8 years before the table would need to be cleared Storage Area Network SAN Configurations in which multiple host computers attach to one or more controllers The host computers are attached to the controller s through a fibre channel arbitrated loop or through a switch Manual No 775084 G 29 Storage Device A collective term for disks tape transports and other mechanisms capable of non volatile data storage Stripe Order The order in which SCSI disk drives appear w
94. f you have reason to believe that logical drive consistency data is corrupted or if you wish to run a consistency check for maintenance reasons perform the following procedure 1 Double click a logical drive in Controller View right side of a Controller View window 2 Click the Consistency Check button in the Logical Drive Information dialog box to begin A message is displayed asking if you would like consistency to be restored in the event of errors Figure 6 1 Manual No 775084 6 1 Running a Logical Drive Consistency Check Consistency Check Q Restore consistency if errors are found during the consistency check Figure 6 1 Restore Consistency If Errors Are Found 3 Click Yes to restore consistency during the process A Caution If consistency data is badly corrupted on a logical drive attempting to restore consistency may result in corrupted real data Use the Yes option with caution Click No if you just want to carry out the consistency check There is no risk of data loss Errors will still be reported to the Error Table but no attempt will be made to correct them Consistency Check runs and the Consistency Check Status box appears see the previous chapter Close the box and continue or leave the box open until Consistency Check has completed 6 2 SANArray Manager Client Installation Guide and User Manual Maintenance Processes Running a Device Rebuild If a single device in a fault tolerant sys
95. failed drive and perform an automatic rebuild after installation of a replacement drive Do not disable this unless you are sure of the consequences Active Negation Not available for External RAID Controllers Read Ahead Not available for External RAID Controllers Disconnect On First Command Not available for External RAID Controllers Background Initialization Not used on External RAID Controllers Change the default Rebuild Rate to less than or equal to 50 A rate of 50 devotes the maximum allowable resources to a drive rebuild or array expansion allowing the Rebuild or Expand to proceed at its fastest Lowering the number devotes more resources to I Os and consequently slows the Rebuild or Expand Array process Manual No 775084 4 21 Mylex External RAID Controllers with Firmware 6 x or Lower Change any of the following Startup Parameters e Spin up Change if you do not want automatic drive spin up Other choices are to spin up at power on or to wait for a command and then do an automatic drive spin up e Devices Between Spins Number of devices to spin up at one time A low number lessens the likelihood of a power drain e Initial Delay Number of seconds to wait before spinning up the first disk set e Sequential Delay Number of seconds between consecutive device spin up cycles Change any of the following SCSI Parameters note that Transfer Speed is not changeable e Channel Selects the channe
96. fication address Platform An underlying computer system on which application programs can run A platform consists of an operating system the computer system s coordinating program and a microprocessor the microchip in the computer that performs logic operations and manages data movement in the computer Plug and Play The ability to install peripheral cards or other devices without requiring manual configuration by the user PROM Programmable Read Only Memory memory that users with appropriate instructions can reprogram Manual No 775084 G 21 Protocol A special set of rules for transmitting data between two devices in a telecommunication connection Queue A line of things commands or data waiting to be handled usually in sequential order starting at the beginning or top of the line or sequence RAID Redundant Array of Independent Disks a collection of two or more disks working together in an array DAC960 controllers implement this technology to connect up to 15 SCSI devices per channel The different forms of RAID implementation are known as RAID levels See also Berkeley RAID Levels on page G 3 Disk Array on page G 9 and RAID Levels on page G 22 The system manager or integrator selects the appropriate RAID level for a system This decision will be based on which of the following are to be emphasized Disk Capacity Data Availability redundancy or fault tolerance Disk Perform
97. g GAM Server software component on the server under any of the supported operating systems CD ROM drive for CD ROM installation or 3 1 2 inch disk drive for diskette installation Fixed disk with at least 8 MB available free space 16 MB recommended Mouse or other pointing device A minimum display screen setting of 800 x 600 is recommended However we recommend setting the display at 1024 x 768 for optimum SANArray Manager client viewing For SANArray Manager component installation and operation Windows Me Microsoft Windows 2000 Windows NT 4 0 Windows 95 or Windows 98 installed on a local hard disk TCP IP stack installed Optional Modem or Fax Modem Hayes compatible Manual No 775084 1 3 Requirements e MAPI or SMTP compliant messaging such as Microsoft Outlook required for Windows e Microsoft Exchange and Microsoft At Work Windows 95 for fax notification of events Refer to your server documentation and to the Windows documentation for more information on hardware and operating system requirements 1 4 SANArray Manager Client Installation Guide and User Manual Chapter 2 Installation Installation Overview Installation of the SANArray Manager Client component requires one of the following operating systems e Windows Me e Windows 2000 e Windows NT 4 0 e Windows 98 e Windows 95 This chapter assumes that the network administrator for this site will be performing these installat
98. g the fastest processor on a PCI based RAID solution a 233 MHz RISC processor up to four 160MB sec channels and a 64 bit PCI interface to provide eXtreme performance for servers The eXtremeRAID controllers use driver technology with which Mylex has won tpm C benchmarks worldwide With this technology the eXtremeRAID 1100 2000 and 3000 provide the highest performance and most flexible RAID solution available today Manual No 775084 G 11 Failback Restoring a failed system component s share of a load to a replacement component Failover A mode of operation for failure tolerant systems in which a component has failed and a redundant component has assumed its functions Failover Port A fibre channel port capable of assuming I O requests for another failed port on the loop During normal operation a failover port may be active or inactive Failover ports assume the same loop ID and optionally the same node from the failed port Failure A detectable physical change in hardware requiring replacement of the component Fast Ethernet A local area network transmission standard that provides a data rate of 100 megabits per second referred to as JOOBase T on page G 33 See also Ethernet on page G 11 Fault Tolerance Failure Tolerance The ability of a system to continue to perform its function even when one of its components has failed A fault tolerant system requires redundancy in disk drives power suppl
99. gabit 10 1 000 000 000 bits Abbreviated as Gb Gigabyte 230 1 073 741 824 bytes Abbreviated as G or GB GUI Graphical User Interface a software interface that interacts with the user through color graphics and a mouse Manual No 775084 G 13 Hard Disk A magnetically coated disk substrate that spins inside a disk drive and is used as the storage medium for digital data Host Any computer system to which disks are attached and accessible for data storage and I O Host I O Bus An I O bus used to connect a host computer to storage systems or storage devices Hot Plug The process of adding or removing a device from a bus while transactions involving other devices are occurring over the bus See also PCI Hot Plug on page G 21 Hot Replacement of Disks The design of all Mylex controllers allows for the replacement of failed hard disk drives without interruption of system service In the event of a SCSI drive failure on a properly configured system where the data redundancy features of the controller are used the system generates a message to alert the system operator When a replacement drive becomes available the system operator can remove the failed disk drive install a new disk drive and instruct the controller to rebuild the data on the new drive all without interrupting system operations Once the rebuild is complete the controller will be brought back into a fault tolerant state See also
100. h attached drive Settings are from 1 no tags to 230 e MAXIOPs Limit Sets maximum number of IOP structures allowed for controller command operations limiting the number of simultaneous commands Settings are from 64 to 244 Enable or disable by checking or unchecking any of the following options e Conservative Cache Mode Turns off write cache while a failover condition persists allowing an extra degree of data safety e SAF TE Use of UPS Enables monitoring of uninterruptable power supply if it is also supported by the system enclosure e Restrict Reassign to One Block Restricts a reassign to the failing block If disabled reassigns will be for the entire current I O blocks not all of them failing Manual No 775084 4 23 Mylex External RAID Controllers with Firmware 6 x or Lower e Smart Large Host Transfers For transfers larger than the stripe size enables coalescing of device queues with a link to the Coalesce Device Queues option e Elevator Ordering Of Device Queues Attempts to keep the drive heads moving in the same direction as long as possible to improve performance Assumes that Logical Bus Addresses LBAs are physically sequentially ordered e Coalesce Device Queues Joins data from adjacent I Os into a single T O to improve performance e Super Read Ahead SRA Extends the Read Ahead process by always reading an extra cache line on a read request and reading an additional cache line when a cache hit oc
101. he large display field select the enclosure whose firmware you wish to update 3 Type the name of the appropriate SES Firmware file EFI in the SES F W file selection box or click the Browse button to locate the file If you select Browse the Open SES Firmware File dialog box opens 4 Navigate to and select the SES Firmware file name Open SES Firmware File 21x E SAanay Marar Cen Z 3 cf es Ea efi F1ST0250 efi X SES Firmware File efi Figure 6 10 Open SES Firmware File Manual No 775084 6 9 SES Download 5 Click Open Once you have selected an appropriate file the Apply button becomes available and the Flash file selection area displays details regarding the EFI file SES FAW download 2 x Enclosure ID 0 XYRATEX 55 1202 FCAL 0 SES F W file selection E Progam Files Mylex SANArray Manager Client F1570250 efi endor IBM Figure 6 11 SES Download File Information 6 Compare the information for the new EFI with the current information to confirm that a flash is warranted for example that the EFI contains a newer version of code 7 Click Apply Because flashing new code to the enclosure erases what was there previously confirmation is required to proceed with the flash 8 Type YES then click OK at the confirmation message The SES Flash Utility writes the image data to RAM and resets the enclosure Because resetting the enclosure will suspend all
102. ial Delay 4 22 4 30 Sequential I O G 27 Server G 27 Server Selection Box 3 3 SES G 27 SES Download 6 8 SES enclosure 6 11 SES Enclosure Information details page 5 19 information page 5 17 vital product data page 5 22 Manual No 775084 Index SES firmware 6 8 SES monitoring 6 11 Session G 28 Settings 3 10 3 11 statistics 5 23 Severity Levels A 1 Shutdown 6 16 Sign On 3 8 3 11 4 2 Signing On to a Server 4 1 SIMM G 28 Simplex No RSTCOM 4 25 4 34 SISL G 28 SLP VT100 Emulation 4 27 4 35 SMART G 28 Smart Large Host Transfers 4 24 4 31 SNMP G 28 Software Driver G 28 Software Requirements client 1 3 Spin up 4 22 4 30 Standard Disk Drive G 28 Standby Replacement of Disks G 28 Starting SANArray Manager 3 1 client component 3 1 server component 3 1 Startup amp Navigation 3 1 Statistics View 3 7 3 11 5 23 Status consistency check 3 7 5 36 expand array 5 37 expand capacity 3 7 5 37 initialize 3 7 5 34 rebuild 3 7 5 35 Storage Area Network SAN G 29 Storage Device G 30 Stripe Order G 30 Stripe Size 4 56 5 16 G 30 Stripe Width G 30 Striping G 30 Sub System Storage G 30 Super Read Ahead 4 24 Sustained Data Transfer Rate G 30 Index 5 Synchronous Data Transfer G 31 System Disk G 31 System Drives G 31 T Target ID G 31 TCP IP G 31 Terabyte G 31 Termination G 31 Terminator G 31 Thin File Server G 32 Throughput G 32 Toolbar 3 3 3 11 Icons display control
103. ially on all available ports This reproduces the default shown in Figure 4 51 unless LUN Balancing is in effect The Restore button resets the LUN Mapping assignments that are currently saved in the configuration the assignments in effect when the LUN Mapping page was entered This is handy if LUN assignments become confusing and you wish to cancel your changes The Apply button applies the entire External RAID Controller configuration including what was set up under the Disk Arrays Logical Drives and LUN Mapping tabs The Cancel button cancels the entire configuration including what was set up under the Disk Arrays Logical Drives and LUN Mapping tabs If you want to cancel only your LUN Mapping changes use the Restore button While it is recommended that there be a LUN 0 on each port the order and value of LUNs on each port is flexible Figure 4 52 shows a LUN Mapping scenario Manual No 775084 4 61 External RAID Controller Operation Overview Manual Configuration E dit Configuration 192 9 10 55 Controller 0 Figure 4 52 A LUN Mapping Scenario Click Apply when you are ready to accept the entire External RAID Controller configuration you ve specified across all Manual Configuration tabs There will be a confirmation message followed by a Do You Want To Reset message Reset will take a couple of minutes 4 62 SANArray Manager Client Installation Guide and User Manual Configuration
104. ics View Log Information Viewer Initialize Status Rebuild Status Consistency Check Status Expand Capacity Status Figure 5 28 Select Rebuild Status The Rebuild Status box Figure 5 29 displays the progress of a physical drive rebuild The command rebuilds all logical drives that occupy any portion of the targeted physical drive Manual No 775084 5 35 Process Status Monitoring Rebuild Status Controller 2 Figure 5 29 Rebuild Status Box Click Cancel to stop the rebuild You may need to check the Views menu to see if Rebuild Status is still enabled If so you may need to cancel other rebuilds as well Click Close to close the Rebuild Status box at any time Consistency Check Status If a consistency check process is currently underway open the Consistency Check Status box as shown in Figure 5 30 to monitor the consistency check progress or cancel the process Figure 5 30 Select Consistency Check Status The Consistency Check Status box Figure 5 31 displays the progress of a logical drive consistency check 5 36 SANArray Manager Client Installation Guide and User Manual Monitoring Consistency Check Status Controller 3 Figure 5 31 Consistency Check Status Box Click Cancel to stop the consistency check You may need to check the Views menu to see if Consistency Check Status is still enabled If so you may need to cancel other consistency checks as well
105. ies adapters controllers and cabling Mylex RAID controllers offer high levels of fault tolerance Fibre Channel Technology for transmitting data between computer devices at a data rate of up to 2 Gbps two billion bits per second especially suited for connecting computer servers to shared storage devices and for interconnecting storage controllers and drives Glossary Fibre Channel is expected to replace the Small System Computer Interface SCSTI on page G 25 as the transmission interface between servers and clustered storage devices It is also more flexible devices can be as far as ten kilometers about six miles apart The longer distance requires optical fiber as the physical medium however Fibre Channel also works using coaxial cable and ordinary telephone twisted pair wires File Server A computer shared by users over a Local Area Network which provides user access to files on the LAN Other types of servers perform application services for example mail servers web servers rather than just store files Flash ROM Memory on an adapter containing software that can be reprogrammed without removing it from the board Format A pre established layout for data Programs accept data as input in a certain format process it and provide it as output in the same or another format All data is stored in some format with the expectation that it will be processed by a program that knows how to handle that format Gi
106. ignals A or B to use when detecting the presence of a partner controller This option has no effect in a simplex environment Set Debug Port Usage Select SLP VT100 emulation or Debug mode Set Debug Port Speed Sets the baud rate for the serial port from 2400 to 19200 baud Fibre Controller Options In the Fibre Controller options dialog box Figure 4 31 you have several options Controller Options bre a Figure 4 31 Fibre Controller Options Dialog Box Manual No 775084 4 35 Mylex External RAID Controllers with Firmware 7 x Set any of the following Fibre options Enable or disable by checking or unchecking Note Only available topologies for the particular controller will be shown in the drop down list e Enable Disable Node Name Retention When enabled each controller shares its node name with its partner controller and those names are used through all phases of failover and failback e Set PCI Latency Control Controls the amount of data each Front End Fibre Protocol Processor can burst across the primary PCI bus before relinquishing bus ownership Settings are Short Medium Long A setting of Long is recommended e Set Frame Control Allows adjustment of the FC chip s frame size e Request Hard Loop IDs for each controller and port combination Enable a controller port combination by checking its check box Values allow use of the same Loop IDs all the time Values allow use of the same
107. ike Controller Information user definable controller parameters are modified in Controller Options e Intelligent BBU Only enabled if the selected controller has an Intelligent Battery Backup Unit installed Displays a dialog box from which you can do the following e monitor the power remaining in the Intelligent BBU e request reconditioning of the Intelligent BBU e set the low power threshold The Intelligent BBU s features and functionality are described in detail elsewhere SANArray Manager simply offer a way of keeping up to date as to the condition and charge in the battery e Scan Devices Scans for new devices that have recently been added and which are not currently identified within SANArray Manager Client e Advanced Functions Opens a submenu Figure 3 6 from which you can select the following options e Flash Utility Provides the ability to upgrade controller firmware BIOS boot block or BIOS configuration utility as new maintenance releases become available Shutdown Enables clean shutdown of the controller system leaving the battery charged e SES Download Provides the ability to to upgrade SES firmware as new releases become available e Enclosure Discovery Starts the SES monitoring process for a new Manual No 775084 3 9 Navigating SANArray Manager Client Enclosure Only performed if an SES device is present or an SES process is running e Retrieve Debug Dump Retrieves an unread debug dump
108. ima Controller Firmware Image ima M Figure 6 5 Open Image File Dialog Box 2 Navigate to and select the image file name 3 Click Open Once you ve specified an appropriate image file the Apply button 6 6 SANArray Manager Client Installation Guide and User Manual Maintenance Processes becomes available in the Flash Utility dialog box and the Flash file selection area displays details regarding the IMA file Figure 6 6 Flash Utility 4 41924hp ima Figure 6 6 Additional Flash File Information 4 Compare the information for the new IMA with the current information to confirm that a flash is warranted for example that the IMA contains a newer version of code 5 Click Apply Because flashing new code to the controller erases what was there previously confirmation is required to proceed with the flash Figure 6 7 Figure 6 7 WARNING Message for Flash 6 Type YES then click OK at the confirmation message The Flash Utility writes the image data to RAM and resets the controller Because resetting the controller will suspend all I O activity currently underway on that controller a pop up is displayed which reads Initiating controller system reset Reset will take 30 seconds Manual No 775084 6 7 SES Download SES Download SES Firmware upgrade is an advanced process that should only be carried out by an experienced System Administrator BEFORE you attempt to
109. inconsistencies See also Consistency Check on page G 6 Partitioning When the full usable storage capacity of a disk or array of disks appears to an operating environment in the form of several virtual disks whose entire capacity approximates that of the underlying disk or array PCB Printed Circuit Board also called cards or adapters a thin plate consisting of chips and other electronic components PCI Peripheral Component Interconnect a standardized architecture that provides a high speed data path between peripherals and the CPU PCI is a high performance backplane interface expansion slot architecture found on PCs Macintoshes and UNIX workstations PCI cards are portable across hardware platforms with the help of various software drivers Glossary PCI Hot Plug A feature that allows for the printed circuit board PCB on page G 20 to be replaced without powering down the entire system an essential feature in newer PCI based PCs Mylex DAC960PG DAC960PJ AcceleRAID and eXtremeRAID products are all PCI Hot Plug compatible See also Hot Plug on page G 14 Peripheral Any computer device that is not part of the essential computer but is situated relatively close by Physical Device Any device connected to some kind of hardware For example SCSI disk fibre disk network disk RAM disk etc Physical Disk Drive A single hard disk drive Each physical disk drive is assigned a unique identi
110. ines what a computer can do without accessing programs The BIOS contains all the code required to control the keyboard screen drives serial communications and other functions Usually the BIOS is built into a ROM chip installed on the motherboard so that the BIOS will always be available and not affected by disk failure Sometimes the BIOS is recorded on a flash memory chip BIOS Config Utility BIOS based Configuration Utility a utility program sequence used upon powerup for configuring various hardware elements in a system Booting or Bootstrapping Loading operating system code and other basic software from a disk or other storage device to help a computer start Bridge RAID Controller A device appearing as a single ID in a Storage Area Network SAN on page G 29 but which bridges to multiple devices typically used to control external RAID subsystems A bridge RAID controller is often referred to as an External RAID Controller on page G 11 Burst Data Rate The speed at which a specific amount of data is sent or received in intermittent operations compare to Sustained Data Transfer Rate on page G 30 Bus A set of conductors that connect the functional units in a computer and are the channels through which data is transferred There are several types of bus channels including serial parallel PCI ISA EISA and MCA See also I O Bus on page G 15 G 4 Glossary Cables The physical
111. ion procedures If you are installing SANArray Manager Client you may also choose to install GAM Server and its subcomponents at the same time on the same system When installing GAM Server dialog boxes for the server component appear and require a computer restart before launching the SANArray Manager Client software Refer to the appropriate Global Array Manager Server Installation Guide and User Manual for GAM Server installation instructions Manual No 775084 2 1 Installation of SANArray Manager Client Installation of SANArray Manager Client SANArray Manager software is shipped on an accompanying distribution CD ROM The file list and path is as follows where X represents the drive letter of your CD ROM drive X SAM WINNT or X SAM WIN2K _INST321 EX_ _USER1 CAB _ISDEL EXE _USER1 HDR _SETUP DLL lang dat _SYS1 CAB layout bin _SYS1 HDR os dat Setup exe Setup ini setup ins setup lid Installing SANArray Manager Client Software 1 If you intend to install GAM Server with SANArray Manager Client make sure TCP IP is installed and functioning properly 2 Insert the distribution CD ROM into your CD ROM drive AutoRun will cause the CD ROM to display the Mylex RAID Management Software Installation menu Figure 2 1 Mylex Solutions MOVING DATA gt SMARTER BBE RAID Management Software Installation gt Install Global Array Manager gt Create Software Diskettes gt Explore the CD gt
112. ithin a drive group This order must be maintained and is critical to the controller s ability to rebuild failed drives Stripe Size The size in kilobytes 1024 bytes of a single I O operation A stripe of data data residing in actual physical disk sectors which are logically ordered first to last is divided over all disks in the drive group Stripe Width The number of striped SCSI drives within a drive group Striping The storing of a sequential block of incoming data across multiple SCSI drives in a group For example if there are 3 SCSI drives in a group the data will be separated into blocks and block 1 of the data will be stored on SCSI drive 1 block 2 on SCSI drive 2 block 3 on SCSI drive 3 block 4 on SCSI drive 1 block 5 on SCSI drive 2 and so on This storage method increases the disk system throughput by ensuring a balanced load among all drives Sub System Storage A collection of disks providing data storage space to a system user Sustained Data Transfer Rate A rate of data transfer defined for continuous operation at a maximum speed level Glossary Synchronous Data Transfer Data transmission synchronized to a defined time interval and is faster than asynchronous SCSI because there is no wait for acknowledgement of each byte from the receiving device up to 20MHz System Disk The disk on which a system s operating software is stored System Drives See Logical Drive on page G
113. l Delay 4 22 4 30 Initialize Logical Drives 3 8 Installation 2 1 Intelligent BBU 3 9 Interface G 15 Introduction 1 1 J JBOD G 16 K Kill Partner 5 9 5 11 Killing a Drive 1 2 Kilobyte G 16 L Latency G 16 Left Symmetric RAIDS Algorithm 4 25 Line Graph 5 30 Log Information Viewer 3 3 3 7 5 1 5 2 Logical Drive G 17 Logical Drive Information 5 15 6 1 Logical Drive Number 5 15 Logical Drive States G 17 Logical Drives 5 15 LUN G 17 LUN Mapping 4 60 G 17 in SANArray Manager 4 59 4 63 overview 4 59 LVD G 17 M M O R E G 18 Maintenance 1 2 Maintenance Processes 6 1 Manual Configuration 1 2 4 38 disk arrays 4 53 4 55 example 4 56 logical drives 4 55 options 4 52 MAXIOPs Limit 4 23 Index 3 Megabit G 18 Megabyte G 18 Menubar 3 3 3 6 Menus 3 6 administration 3 8 file 3 6 help 3 10 view 3 7 window 3 10 Mirrored Cache G 18 Mirrored Hard Drive G 18 Mirroring G 18 Monitoring 1 2 5 1 controllers 5 5 events 5 1 performance 5 23 physical and logical drives 5 11 process status 5 34 MTBF G 19 MTDL G 19 Multi port Reset 4 26 4 34 N Navigating SANArray Manager Client 3 2 New Configuration 4 40 4 43 4 53 No Pause On Controller Not Ready 4 26 4 34 NVRAM G 19 O Offline G 19 On Q Full Give Busy 4 25 4 34 Online G 19 Open Configuration 3 6 Operational Fault Management 4 24 4 32 OS G 20 Overview 1 1 2 1 A 1 P Parity G 20 Parity Check G 20 Partitioning
114. l drive list and logical drive to LUN list are displayed for the selected port Logical Drive to LUN Mapping Logical Drive to LUN Mapping associates a logical drive defined in the configuration with a LUN The main list control displays the logical drive LD RAID level and size and LUN assignment If no LUN is associated with the logical drive the LUN field is blank However it is required that at minimum a LUN 0 be defined in order for the controller to connect When a logical drive is selected the LUN Selection field and the Enable All Hosts check box become active If a LUN assignment exists for the logical drive it is displayed in the LUN Selection field The LUN Selection drop down box displays all valid LUNs that may be assigned to the selected logical drive Enable All Hosts allows a logical drive LUN assignment that is enabled for all hosts on the loop This allows all hosts on the loop access to the logical drive through the LUN without having to redefine the mapping as new hosts are added to the loop Enable All Hosts mapping is the default mapping for all new configurations and old configurations that are converted to new configurations Manual No 775084 4 65 External RAID Controller Operation Overview Note Enable All Hosts can generate an error if another logical drive is sharing a LUN with the logical drive being enabled and hosts have been assigned to the logical drive In this situation the operation is not
115. l settings for this particular event to their Mylex defaults Alarm for the Event When all Global boxes are checked you are seeing the alarms that will activate when this particular event occurs these are based on the settings in Alert Preferences Check or uncheck specific boxes if you wish to override these defaults and change the alarms for this event Event Message Text Type new text for this event or keep the default text set by Mylex After modifying the event definitions a data file called samcl gef will automatically be generated This file will then be read at each SANArray Manager startup and a dialog box will be displayed Figure 4 21 SANArray Manager Client Eg Reading event definitions from event file lt samel gef gt Figure 4 21 samcl gef Dialog Box The dialog box message indicates that the file defines all events even for new releases of SANArray Manager that may have added new events However the new events will not be seen until the samcl gef file is deleted and SANArray Manager client is restarted Manual No 775084 4 19 Setting and Modifying Controller Options Default All Click the Default All button to reset all events of all severity levels back to their Mylex defaults Finish by doing one of the following e Click OK to accept the event settings and exit the Settings dialog box or e Click Cancel to leave original settings unchanged or e Click another Settings tab to set ad
116. l to be viewed for the current data e 8 bit 16 bit Select whether the channel will negotiate 8 bit or 16 bit transfers e Data Transfer Rates Select the maximum data transfer rate of the disk side channels Speeds are Asynchronous 5 MHz 8 MHz 10 MHz 20 MHz and 40 MHz Low Voltage Differential only Fibre data transfer rates are fixed at 1OMB second Note SCSI Parameters are disabled for Fibre back end products such as the DAC960FF 4 22 SANArray Manager Client Installation Guide and User Manual Configuration Advanced Controller Options Click the Advanced button in the Controller Options dialog box to inspect and or change additional External RAID Controller Options Advanced Controller Options 21x 1 230 64 244 Queue Limit ast wl gt MAX IOPs Limit 2 a mi gt I Enable Conservative Cache Mode I Enable Super Read Ahead SRA IV Enable SAF TE Use Of UPS J Enable Restrict Reassign To One Block IV Enable Smart Large Host Transfers T Enable Elevator Ordering Of Device Queues IM Enable Operational Fault Management T Enable Coalesce Device Queues T Disable Wide Transfer On Host I Enable True Verification Of Data T Enable WriteThrough Verify Figure 4 24 Advanced Controller Options Dialog Box In the Advanced Controller Options dialog box Figure 4 24 you have several options Set the following limits e Queue Limit Maximum allowed queue depth for tagged commands to eac
117. lable with the SANArray Manager ProFibre Client Enclosure Information x Information Details Vital Product Data Enclosure Status Element id Serial Number Part 4 Enclosure Logical ID yyy Power Supply 1 SN M10C01989026 Power Supply 2 SN M10C198G032 Fan Element 1 SN M10C1989026 Fan Element 2 SN M10C198G032 Enclosure Services 1 SN 000000IS4af Enclosure Services 2 SN 000000I64aa Switch Card SN uit Figure 5 16 SES Enclosure Information Vital Product Data Page The Vital Product Data page displays the following about the currently available fibre enclosures The status of each enclosure identified by an icon and an enclosure number as well as one of the following expressed in text e OK All components are optimal e Critical Some component has failed one more failure may result in data loss e Failed A failure has occurred that may result in data loss e The vendor identification of the enclosure element e The vendor serial number of the enclosure element e The vendor part number of the enclosure element Highlight an enclosure and the Locate button will become available Click the Locate button to blink the LED of the enclosure to reveal its location A locate enclosure dialog box will open click OK to end the locate operation and return to normal status Click the Close button to close the dialog box 1 This feature is available only on limited Storage Subsystem platforms
118. le of background initialization If so and you check the box you ll see a message when you apply the configuration indicating that you can make use of the background initialization support Select a stripe size Click the Add Drive button to register your new logical drive 7 Click the SAN Mapping tab to continue with configuration see LUN Mapping in SANArray Manager FW 5 x or below on page 4 59 or Host to SANmapping in SANArray Manager FW 6 x or above on page 4 63 OR Repeat the process above to set up additional logical drives then click the SAN Mapping tab when you are done An example of a completed Manual configuration is shown in Figure 4 50 4 56 SANArray Manager Client Installation Guide and User Manual Configuration Manual Configuration New Configuration 204 32 130 202 Controller 2 Figure 4 50 Sample Manual Configuration Just Before Apply Note In Manual Configuration Add Logical Drive and Expand Array function very similarly to what was shown above In each of these two cases however RAID Assist shows you the disk arrays and logical drives and allows you to add to the configuration without risking existing data Manual No 775084 4 57 External RAID Controller Operation Overview External RAID Controller Operation Overview External RAID Controllers use their host ports to connect to one or more Host Bus Adapters in one or more host computer systems Depending
119. ler information 3 11 help 3 11 RAID Assist 3 11 refresh group button 4 66 refresh system button 4 67 scan devices 3 11 settings 3 11 sign on 3 11 statistics view 3 11 icons 3 11 save as button 3 11 TPC C Tpm C G 32 Transfer Rate G 32 True Verification of Data 4 24 4 31 U User Access Level 4 1 Vv Vendor Unique Test Unit Ready Status 4 26 4 34 Vital Product Data 5 22 Ww Warm Swap G 32 Wide Transfer On Host 4 24 Write Cache 4 56 5 16 Write Through Verify 4 24 4 31 Write Back Cache G 32 Write Through Cache G 32 X XOR G 33 Index 6 SANArray Manager Client Installation Guide and User Manual fINVYLEX MOVING DATA gt SMARTER CORPORATE OFFICE 34551 Ardenwood Boulevard Fremont CA 94555 3607 Tel 510 796 6100 Domestic Sales Fax 510 745 8016 International Sales Fax 510 745 7521 www mylex com
120. ler when a replacement is inserted If you enable this option you must also enable the Controller Present Fault Signals option Force Simplex Allows duplex firmware to work in a simplex environment by skipping some Active Active operations Reset Propagation Allows a port that executes an internal reset to cause a reset event to occur on its attached interface Multi port Reset Allows execution of an internal reset on a port only if a logical drive has been reserved through that port Controller Present Fault Select Default is A Allows the user to select between two sets of backplane signals A or B to use when detecting the presence of a partner controller This option has no effect in a simplex environment Controller Present Fault Signals Default is Enabled Enables the use of backplane signals for sensing the presence of or possible fault in the partner controller in a dual active controller configuration If you have enabled Auto Restore Automatic Failback enable this function also This parameter is necessary for hot plugging controllers and automatic failback This parameter is not available through the LCD VT100 configuration utility Disable or enable by checking or unchecking the following option 4 26 Busy On Failback Causes all pending commands to be quietly dropped during failback This is intended to help hosts that are confused by Queue Full SANArray Manager Client Installation Guide and User Manual
121. lers External RAID Controller operation will show at target ID 6 AND 7 in each channel column This only appears if the selected controller is operating in duplex Controller View Physical Devices MB Channel 0 Channel 1 Channel 2 Logical Drives MB 0 103 1 M 1013 2 Ge 103 3 EJ 103 4 1013 5 J 101 Total Logical Capacity 6076 MB Total Physical Capacity 14758 MB I Enclosure RAID 5 RAID 5 RAID 5 RAID 5 RAID 5 RAID 5 Figure 5 5 Controller View Window Non Fibre RAID Controller Fibre to Fibre RAID Controllers The Controller View window Figure 5 6 displays the following information about the controller currently selected in the controller selection box 5 6 SANArray Manager Client Installation Guide and User Manual Monitoring e The number of channels on this controller each channel depicted as a tower e The physical devices present on each channel specifying the target ID capacity of the device device type and device status e The logical drives configured on the controller specifying the logical drive number capacity of the logical drive configured RAID level and logical drive status e An Enclosure button which is used to monitor SES SAF TE data pertinent to the Fibre Channel RAID Controller enclosure See Enclosure Monitoring and Management on page 5 17 for more details e Enclosure information click on the Enclosure button See
122. lient Installation Guide and User Manual Configuration For example open New Configuration as shown in Figure 4 35 Automatic Configuration x m Data Overwrite Method Create a new configuration If there is an existing configuration it will be overwritten and all data will be lost m Data Retain Method Utilize the remaining available space in an existing array or create Add Logical Drive a new array using unconfigured disk drives Existing data wvill not z be affected by this process Expand the capacity of an existing array Existing data will not be Expand Array affected by this process eas d Cancel Figure 4 35 Select New Configuration The New Configuration option of the Automatic Configuration feature provides the administrator with the option of customizing the automatic configuration SANArray Manager Client creates an autoconfig dat file that the administrator can edit The autoconfig dat file can be opened and edited through notepad or another text editing application The new configuration created by the autoconfig dat file is based on the total number of drives discovered by the SANArray Manager The automatic configuration feature uses the maximum number of drives provides a fault tolerant RAID level when able and creates a hot spare drive for drive failure protection The number of logical drives created is dependent on the total number of physical drives
123. line completed User set the physical device online New configuration was added 144 4 Logical drive User started the Any previous initialization started initialization data is lost 145 4 Logical drive Initialize None initialization done operation completed successfully 146 3 Logical drive User cancelled Restart initialization the initialization initialization if cancelled required 147 2 Logical drive One multiple Refer to the initialization failed physical device failure device s failed event Controller has been removed Controller has been powered off 150 4 Expand capacity User started the None started Online RAID Expansion operation 151 4 Expand Capacity Online RAID None Completed Expansion completed 152 2 Expand Capacity Multiple physical It may not be stopped with error devices failed possible to recover from this error Contact your service representative A 8 SANArray Manager Client Installation Guide and User Manual Event Information Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 153 0 Bad Blocks found Bad sector was found ona physical device during consistency check rebuild RAID Expansion operation Runa Consistency Check with the Restore option Restore data from a back up 155 4 System drive type changed Anew configuration has been added RAID migration
124. ller when a replacement is inserted If you enable this option you must also enable the Controller Present Fault Signals option Force Simplex Allows duplex firmware to work in a simplex environment by skipping some Active Active operations Reset Propagation Allows a port that executes an internal reset to cause a reset event to occur on its attached interface Multi port Reset Allows execution of an internal reset on a port only if a logical drive has been reserved through that port Set the Host Bus Reset Delay Allows the controller to reset the host in failover and failback situations When Disabled no SCSI bus reset is generated on the host 4 generates reset this many seconds after SANArray Manager Client Installation Guide and User Manual Configuration the failover or failback occurs Immediate generates immediate reset with no delay This is host SCSI only e Controller Present Fault Signals Default is Enabled Enables the use of backplane signals for sensing the presence of or possible fault in the partner controller in a dual active controller configuration If you have enabled Auto Restore Automatic Failback enable this function also This parameter is necessary for hot plugging controllers and automatic failback This parameter is not available through the LCD VT100 configuration utility e Controller Present Fault Select Default is A Allows the user to select between two sets of backplane s
125. losure Monitoring and Management The Controller View window for Mylex External Fibre Channel Controllers contains an Enclosure button with a status light Green indicates OK Yellow indicates Critical status and a Red X indicates failed status You can monitor information status and additional details about SES and SAF TE enclosures used with Fibre Channel controllers by clicking the Enclosure button in Controller View Alternatively you can select Enclosure Information from the Administration menu as shown in Figure 5 13 Sign On Define Server Groups Raid Assist Initialize Logical Drives Controller Information e Information Controller Options Intelligent BBU Scan Devices Advanced Functions Settings Figure 5 13 Select Enclosure Information The Enclosure Information dialog box is displayed with the Information page active Figure 5 13 Enclosure Information x Information Details Vital Product Data Enclosure Status Type wavN INQ Vendor_ Product Version _ OCiitical SES 5757 4e2d2d2d2d31 MYLEX DACSB0FF V1 1 12 1Failed SAF TE 5757 4e2d2d2d2d32 MYLEX DACSB0FF 22 12 2 Critical SES 2d 2d 2d 2d 2d 2d 2d 2d WWW WA WW 12 loca Figure 5 14 SES Enclosure Information Information Page Manual No 775084 5 17 Enclosure Monitoring and Management Information Page Enclosure Information displays the following about the currently available fibre en
126. lowing conditions are true A standby or hot spare disk drive of identical or larger size is found attached to the same controller All system drives that are dependent on the failed disk drive are configured as a redundant array RAID 1 RAID 3 RAID 5 or RAID 0 1 During the automatic rebuild process system activity continues however system performance may degrade slightly Automatic Switchover See Failover on page G 12 Background Initialization Where the initialization process of a disk array takes place in the background allowing use of a disk array within seconds instead of several hours Also known as Immediate RAID Availability on page G 15 BBU Battery Backup Unit provides a battery backup for data currently stored in the on board cache memory during intermittent power loss to the controller In the event of a power failure the BBU can hold data in the cache for a certain amount of time Once power is restored the data can be saved to a disk Berkeley RAID Levels A family of disk array protection and mapping techniques described by Garth Gibson Randy Katz and David Patterson in papers written while they were performing research into I O systems at the University of California at Berkeley There are six Berkeley RAID levels usually referred to as RAID Level 0 through RAID Level 5 See also RAID Levels on page G 22 Manual No 775084 G 3 BIOS Basic Input Output System software that determ
127. lso choose to install Global Array Manager Server at this time Instructions for GAM Server installation are described in the GAM Server documentation 7 Click Next and follow the on screen prompts 2 4 SANArray Manager Client Installation Guide and User Manual Chapter 3 Startup amp Navigation Starting SANArray Manager Starting the SANAray Manager requires both the Server and Client components It is required that you install and start GAM Server before you attempt to run the SANArray Manager Client Server Component Note Installation and startup of the Global Array Manager Server component is covered in the Global Array Manager Server Installation Guide and User Manual The software for GAM Server is provided on the installation CD ROM Refer to the appropriate sections in the above mentioned manual for instructions on starting the Global Array Manager Server component under any of the supported network operating systems Client Component Under Windows Me Windows 2000 Windows NT 4 0 or Windows 95 98 you are ready to start the SANArray Manager Client once you have installed the client on your workstation see the previous chapter Start the SANArray Manager Client software Start gt Programs gt Mylex SANArray Manager Client If at least one server group and file server are defined the opening screen appears If not the Define Server Groups dialog box appears see Setting Up Server Groups and Servers
128. lso frequently referred to as a server SES SCSI Enclosure Services a standard for SCSI access to services within an enclosure containing one or more SCSI devices For disk drives power supplies cooling elements and temperature sensors the actions performed are the same as for SAF TE monitoring If a UPS is connected to any SES monitored enclosures and an AC failure or two minute warning is reported conservative cache is enabled and all system drives are switched to write through cache Primarily used in fibre enclosures Manual No 775084 G 27 Session The period of time between any two consecutive system shutdowns system shutdown may be either a power off on or a hardware reset SIMM Single In line Memory Module RAM packed on a small circuit board with a defined edge connector Two SIMMs are required for a 64 bit memory path on a Pentium processor See also DIMM on page G 8 SISL See SCSI Interrupt Steering Logic SISL on page G 27 SMART Self Monitoring Analysis and Reporting Technology the industry standard reliability prediction indicator for both the ATA IDE and SCSI hard disk drives Hard disk drives with SMART offer early warning of some hard disk failures so critical data can be protected SNMP Simple Network Management Protocol the protocol governing network management for monitoring network devices and their functions Software Driver Set of utilities and instructions for controllers
129. n New Configuration 204 32 130 202 Controller 2 al al ee L dan _MakeSpae eaan Figure 4 48 Manual Configuration Disk Arrays Each disk array is represented by one line in the Disk Arrays area of the screen upper left Figure 4 48 Logical drives if any have already been configured display on the right side The fourth tab is called 4 SAN Mapping The Apply button resides on the SANmapping page See the section LUN Mapping in SANArray Manager FW 5 x or below on page 4 59 or the section Host to SANmapping in SANArray Manager FW 6 x or above on page 4 63 for more information Do the following 1 Select an unused drive and drag it to the Disk Array AO section The drive will be part of a disk array referred to as AO 2 Select other unused drives and drag them to Disk Array AO or click the Add Array button to create a row for Disk Array A1 then A2 A3 etc then drag unused drives to A1 if you so desire Note Multiple drives can be added by holding down Ctrl while clicking drives then dragging the selected set to a Disk Array section 4 54 SANArray Manager Client Installation Guide and User Manual Configuration If you want to manually configure a hot spare click an unused drive then click the Make Spare button If you want to start over click the Clear All button and start again Once you have assembled the disk array groups click the Logical Drives tab to contin
130. nformation Viewer a window showing a log of recent system error and status event messages The Log Information Viewer opens by default when SANArray Manager Client starts Initialize Status Displays the progress percent complete of an ongoing full initialization of one or more drives v Global Status View Controller Views Statistics View v Log Information Viewer Initialize Status Rebuild Status Consistency Check Status Expand Capacity Status Figure 3 4 View Menu Rebuild Status Displays the progress percent complete of an ongoing device rebuild Consistency Check Status Displays the progress percent complete of an ongoing logical drive consistency check Expand Capacity Status Displays the progress percent complete of an ongoing data restriping process across the target RAID group Manual No 775084 3 7 Navigating SANArray Manager Client A Caution Once the Expand Array Expand Capacity process has begun you should not attempt to interrupt that process before completion data loss will result You may however monitor the progress by choosing the Expand Capacity Status option Administration Menu The Administration menu Figure 3 5 contains the following options e Sign On Enables use of SANArray Manager s configuration and administration functions to Administrators gamroot password Enables only monitoring functions to Users Define Server
131. ng or deleting Mylex RAID Controller configurations e Loading a configuration from disk and saving it to the controller e LUN mapping and SANmapping Signing On to a Server This section describes the different server access levels and the methods of signing onto the SANArray Manager Client Security Access Levels The ability to perform certain actions within the SANArray Manager Client depends on your security access level There are three levels of security access Guest no sign on User and Administrator Guest By attaching to a file server through the SANArray Manager Client a user is automatically assigned Guest no sign on status Guest users can monitor Global status and the Log Information Viewer They cannot make changes to any parameters or configurations Manual No 775084 4 1 Signing On to a Server User A User has ordinary system privileges A User signs on with his or her username and a password that the administrator of that server assigns A User can alter parameters of anything that is not controller or drive related and also monitor the status of any selected controller and RAID subsystem but has no administrative capability The User cannot set up or modify configurations rebuild drives or change their on line status In essence users have Read only privileges Administrator Individuals with Administrator security access have the capabilities of Guests and Users plus the ability to manipulat
132. ng Administration gt RAID Assist on the menu bar or the RAID Assist icon as shown in Figure 4 33 Administration Figure 4 33 Select RAID Assist The RAID Assist Welcome dialog box displays Figure 4 34 Raid Assist 204 32 130 202 Controller 2 Figure 4 34 RAID Assist Welcome Dialog Box Manual No 775084 4 39 Running RAID Assist In the RAID Assist Welcome dialog box Figure 4 34 do one of the following e Click the Automatic Configuration button if you want to provide only minimal input and allow RAID Assist to set up an optimal configuration automatically or e Click the Assisted Configuration button if you want RAID Assist to lead you step by step through the configuration or e Click the Manual Configuration button if you want full control over your configuration setup or e Click Cancel if you want to exit RAID Assist without any changes Automatic Configuration Automatic Configuration provides three options e New Configuration Sets up a new configuration on the controller deleting the previous configuration and data if any e Add Logical Drive Sets up additional arrays logical drives leaving the existing array s intact At least one array must be configured on this controller and unconfigured drive space must remain e Expand Array Restripes data in your array across additional unconfigured drives to expand the capacity of the array 4 40 SANArray Manager C
133. ng data that normally can only be read not written to ROM contains the programming that allows a computer to be booted up each time you turn it on Unlike a computer s random access memory RAM on page G 23 the data in ROM is not lost when the computer power is turned off a small long life battery in your computer sustains the ROM Rotated XOR Redundancy XOR on page G 33 refers to the Boolean Exclusive OR operator Also known as Parity on page G 20 a method of providing complete data redundancy while requiring only a fraction of the storage capacity of mirroring In a system configured under RAID 3 or RAID 5 which require at least three SCSI drives all data and parity blocks are divided amongst the drives in such a way that if any single drive is removed or fails the data on it can be reconstructed using the data on the remaining drives In any RAID 3 or RAID 5 array the capacity allocated to redundancy is the equivalent of one drive Glossary SANMapping SANMapping restricts host access to configured system drives similarly to the Programmable LUN Mapping feature Programmable LUN Mapping is incorporated into the SANMapping feature SANMapping is intended for use in configurations in which multiple host computers attach to one or more Mylex controllers or a Storage Area Network SAN configuration The host computers are attached to the controller s through a fibre channel arbitrated loop or through a s
134. not apply to physical disk drives System commands issued to offline logical drives are returned with an error status no operations can be performed on offline logical drives See also Logical Drive States on page G 17 Online on page G 19 and Critical on page G 7 Online A Logical Drive on page G 17 is in an online state if all of its participating SCSI drives have power and are operational See also Logical Drive States on page G 17 Critical on page G 7 and Offline on page G 19 Manual No 775084 G 19 OS Operating System software that manages the system resources and provides the operating environment for application programs Parity A method of providing complete data redundancy while requiring only a fraction of the storage capacity of mirroring The data and parity blocks are divided between the disk drives in such a way that if any single disk drive is removed or fails the data on it can be reconstructed using the data on the remaining disk drives The parity data may exist on only one disk drive or be distributed between all disk drives in a RAID group See also Rotated XOR Redundancy on page G 24 Parity Check A function used to verify the integrity of data on a system drive It verifies that mirror or parity information matches the stored data on the redundant arrays If the parity block information is inconsistent with the data blocks the controller corrects the
135. ns 398 0 Controller is gone Controller was None System is set online disconnecting from this controller 399 3 Controller s partner Controller was If you did not is gone controller is set offline expect this in failover mode investigate now 400 4 BBU Reconditioning User started a None is started BBU reconditioning 401 4 BBU BBU None Recondiditoning is reconditioning finished completed successfully 402 4 BBU User cancelled Restart the BBU Recondiditoning is the BBU reconditioning if cancelled reconditioning required 404 1 Controller firmware Replacement Reloadcontroller mismatch controller with firmware downlevel firmware installed 406 1 WARM BOOT Memory error Restore data failed detected during from a back up WARM boot scan Possible data loss 411 3 Controller entered None Conservative Cache Mode 412 3 Controller entered None Normal Cache Mode A 16 SANArray Manager Client Installation Guide and User Manual Event Information Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 413 3 Controller Device None Start Complete 414 3 Soft ECC error Faulty Memory Replace Memory Corrected Module Module 415 3 Hard ECC error Faulty Memory Replace Memory Corrected Module Module 416 1 BBU Recondition None Needed 417 3 Controller s Partner None Has Been Moved 419 3 Upd
136. ntroller click the Details button You will be taken to an equivalent 4 42 SANArray Manager Client Installation Guide and User Manual Configuration of the Disk Arrays page as shown in Manual Configuration except that you can only view and close the details window 3 If you accept the configuration as presented click the Apply button at the Finish page to apply the new configuration to the controller A warning confirmation box appears as shown in Figure 4 37 WARNING x Q Changing configuration is data destructive If you want to proceed confirm by typing the word YES on Eos Figure 4 37 WARNING Before Applying the Configuration 4 Type YES and click OK if you are sure you want to apply the new configuration and overwrite the old If you re not sure click Cancel Note In Automatic Configuration Add Logical Drive and Expand Array function very similarly to the New Configuration option except that they do not use the autoconfig dat file In each case RAID Assist prepares an optimal configuration without user input based on characteristics of the available devices Assisted Configuration Assisted Configuration provides three options e New Configuration Sets up a new configuration on the controller deleting the previous configuration and data if any e Add Logical Drive Sets up additional arrays logical drives leaving the existing array s intact At least one array must be configured on thi
137. o Current Power je Version Discharae Batter C Fast Charge c joo Scant nas T Low Power Alarm T Never Reconditioned 2 Charge Level T Reconditioning Needed a I Reconditioning Active I Fast Charging Active T Discharging Active Step Recondition Display Minutes Hours Refresh Cancel Figure 5 35 Intelligent BBU All External Controllers The Intelligent Battery Backup Unit BBU dialog box is used to monitor and charge or recharge the backup battery pack on the controller This battery pack maintains the controller s data in RAM in case AC power is lost to the disk storage system When a new battery is needed the BBU dialog indicates this by showing the battery can no longer take or hold a charge This dialog box is also used after an old battery pack is replaced with a new one The new battery must be fully discharged before it can be charged up Prior to beginning normal operations Mylex recommends that you condition the battery for maximum longevity See Conditioning the Battery on page 5 41 Power Levels The Power Levels area of the Intelligent Battery Backup Unit dialog box contains the following e Low Power Threshold A preset or modifiable power level expressed as hours or minutes of charge used to trigger an alarm when the battery power level drops below the set value Set a threshold select Set Low Power Threshold under Actions then click Apply to set the n
138. o the display box 9 Repeat steps 1 through 8 to create additional analysis strings if you so desire OR If you want to add to an already built string select the string in the display box select additional devices under Device Selection and click the Add To button If you change the Operation Color or Line and click Add To the new selection replaces the previous one To delete analysis strings Select a string in the display box and click Delete OR Click Delete All to delete all defined analysis strings To set the Sample Period Type a number of seconds in the Sample Period box A data point will be created to display each Sample Period number of seconds To save all your settings to a file for future use 1 Click Save Settings A Save As dialog box is displayed Figure 5 19 Save As i Lx Save in ax Floppy 4 7 al c E File name settingi Save as type Settings Files gsf 7 Cancel Figure 5 19 Save Settings to a File 2 Enter a destination and filename for your settings file 5 26 SANArray Manager Client Installation Guide and User Manual Monitoring 3 Click Save To use previously saved settings 1 Click Open Settings An Open dialog box is displayed Figure 5 20 Open 21 x Look ine E 3 Floppy fA gt l File name settinal gsf Files of type Settings Files gsf x Cancel Figure 5 20 Open Previously Saved Settings 2 Enter a destination
139. on field Manual No 775084 4 67 External RAID Controller Operation Overview e Host to logical drive mapping may be done without assigning any hosts Hosts may be assigned at any time Set Sequential The Set Sequential button sets all logical drives to LUN assignments sequentially and all host to logical drive mapping to Enable All Hosts For example logical drive 0 to LUN 0 logical drive 1 to LUN 1 etc Clear All The Clear All button sets all LUN assignments to None You can then select individual assignments more closely while allowing several assignments of inaccessible WARNING DO NOT leave all assignments at None This indicates that no logical drives are accessible to any port on any controller Restore The Restore button resets the Host to SANmapping configuration to the mapping assigned at the time RAID Assist was entered If editing an existing configuration the original mapping is read from the firmware A new configuration reverts to the default mapping Enable All Hosts Cancel The Cancel button cancels the entire configuration including what was set up under the Disk Arrays Logical Drives and SAN Mapping tabs If you want to cancel only your SANmapping changes use the Restore button Apply The Apply button applies the entire External RAID Controller configuration including what was set up under the Disk Arrays Logical Drives and SAN Mapping tabs Click Apply when you are ready to accep
140. on is vendor s broken diagnostics and Management repair hardware is bad procedures Fan is not present 272 1 Power supply Cable Reconnect cable failure connection is or replace the broken Bad power supply as power supply required A 10 SANArray Manager Client Installation Guide and User Manual Event Information Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 273 4 Power supply has Faulty power None been restored supply has been replaced 275 4 Storage cabinet Management Follow enclosure power supply is not connection is management present broken vendor s Management diagnostics and hardware is bad repair Power supply is procedures not present 289 3 Temperature is Temperature is Replace fan above 50 degrees above 50 Turn off the Celsius degrees Celsius system Adjust the room temperature pager 0 290 4 Normal temperature Faulty fan has None has been restored been replaced Room temperature was reduced 292 4 Storage cabinet Enclosure Follow enclosure temperature sensor management management is not present connection is vendor s broken diagnostics and Management repair hardware is bad procedures Sensor is not present 307 4 Uninterruptible None Power Supply Disabled 308 4 Uninterruptible None Power Supply AC Failed Manual No 775084 Overview Table A 2 SANArray Manager
141. on page 4 4 Note After starting the SANArray Manager Client minimize the utility and let it run in the background at all times unless you re doing a configuration or setting up a maintenance process If SANArray Manager detects a logical drive in a critical state or a Manual No 775084 3 1 Navigating SANArray Manager Client physical drive failing it prompts you with windows describing the location and nature of the problem Maximize the utility to display more detailed information In order for event notification to occur the Global Array Manager Server and SANArray Manager Client must be running at all times Navigating SANArray Manager Client This section describes the navigating features and options that the SANArray Manager Client provides Button Controls Dialog boxes throughout the SANArray Manager Client have a series of control buttons Some examples of these include Ok Click this button to apply the settings made in the dialog box Cancel Click this button to cancel the settings made in the dialog box Yes Click this button to confirm the action identified in the dialog box Click this button to cancel the action identified in the dialog box Close Click this button to close the active dialog box Apply Click this button to apply your configuration changes 3 2 SANArray Manager Client Installation Guide and User Manual Components of the SANArray Manager Client Opening Screens
142. on the model and configuration of the controller there may be from one to four host ports Each configured logical drive assumes a particular bus target ID Logical Unit Number LUN on the host system Multiple sets of disk drives are connected to the controller via its drive channels There may be as many as six drive channels depending on the controller model and configuration In duplex or Active Active mode two identical External RAID Controllers are connected to the same hosts via their host ports to the same drives via their drive channels and to each other via a special hardware link for heartbeat sensing This forms a redundant controller system The two controllers work together handling data traffic and mirror their write data in each other s cache memory If one of the controllers fails or otherwise becomes non operational the surviving controller takes over its responsibilities with no loss of data Note This section presents only a brief introduction to External RAID Controller operation For additional details consult the hardware installation guide for the particular controller of interest Two schemes for LUN Mapping exist depending on the version of the External RAID Controller firmware in use e External Firmware 5 x and below uses a basic LUN Mapping system e External Firmware 6 x and above uses an advanced Host to LUN Mapping system incorporated into a SANmapping feature Refer to the appropriate sec
143. onfiguration provides four options e Edit Configuration Displays the current configuration disk arrays and logical drives and allows you to make any changes that you require Note Edit Configuration should not be used when you are clearing the entire configuration To clear a configuration use the File gt Clear Configuration menu option A Caution Although there are confirmation checkpoints and warnings following selection of the Clear Configuration option remember that all existing configuration and file data on all drives connected to the controller will be deleted 4 52 SANArray Manager Client Installation Guide and User Manual Configuration e New Configuration Sets up a new configuration on the controller deleting the previous configuration and data if any e Add Logical Drive Sets up additional arrays logical drives leaving the existing array s intact At least one array must be configured on this controller and unconfigured drive space must remain Expand Array Restripes data in your array across additional unconfigured drives to expand the capacity of the array For example open New Configuration as shown in Figure 4 47 Manual Configuration Figure 4 47 Select New Configuration The Disk Arrays tab in Manual Configuration is where you begin to configure your unused disk drives lower left Figure 4 48 Manual No 775084 4 53 Running RAID Assist Manual Configuratio
144. ons seia e edie aed adii a 1 2 Maintenance Functions ceesceeesseeeeneeeeseeeeeneeeeneeeeneeeeees 1 2 Requirements wv2ccrist ce career inde lie in en eeh indeed 1 3 Client Hardware and Software cceceeseeeseeeeeeeeeeeeteeeeeeeeeeeaes 1 3 Optional ERT EEE E Ase Gi eaten rd tieeet te cide 1 3 Chapter 2 Installation Installation Overview eeceeeceeeeeeeeeeeeeeeeeeeeeeeeaeeeaeeteeeeeaeeseeeeaeeeaeeeaes 2 1 Installation of SANArray Manager Client ceeceeeeeeeteteeeneeeees 2 2 Installing SANArray Manager Client Software eee 2 2 Chapter 3 Startup amp Navigation Starting SANArray Manager ccceeeceseeeeeeeeeeeeseeeeeeeeeeeeeeeteaeenaeeeae 3 1 Server Component ecceeceesseceeeeeeeeeneeseaeeseeeseaeeeeeeeeaeeeneeeeaeees 3 1 Client Component ou eeeeeeeeeeesceteeeeeeeeeeeteaeeeaeeeeeeteaeeteaeeeaeetaes 3 1 Navigating SANArray Manager Client ecceeceeeeeeeteteeeneeeneetaes 3 2 Button Controls ics 2 sien sie ne ees aie aa as 3 2 Components of the SANArray Manager Client Opening Screens 0 0 ceeeeeeeeeeeeeeteeeeeeeeeeeeteeeteaeeeaeeeaes 3 3 Components of the SANArray Manager Client WiINdOWS ecceecceeeeeeeeeeeeeeeeeeeeeeeaeeeeeeeneeeteetneeeeaes 3 3 Components of the Global Status View Window 3 4 Components of the Log Information Viewer 0e 3 4 Menu Bar and Menus cceesseeeeeeeeeeseeeeesneeeeeneeeenneeeeeneeeeaes 3 6 File Meny risina Aten viene tile
145. ontroller options dialog box Figure 4 29 you have several options 4 30 SANArray Manager Client Installation Guide and User Manual Configuration Controller Options B M a C lt l Figure 4 29 Advanced Controller Options Dialog Box Set the following Customizations Enable or disable by checking or unchecking Conservative Cache Mode Turns off write cache while a failover condition persists allowing an extra degree of data safety SAF TE Use of UPS Enables monitoring of uninterruptable power supply if it is also supported by the system enclosure Restrict Reassign to One Block Restricts a reassign to the failing block If disabled reassigns will be for the entire current I O blocks not all of them failing Smart Large Host Transfers For transfers larger than the stripe size enables coalescing of device queues with a link to the Coalesce Device Queues option True Verification Of Data Verifies accuracy of the data with data comparison Write Through Verify During error handling this turns on Force Unit Access for reads and writes Manual No 775084 4 31 Mylex External RAID Controllers with Firmware 7 x Set the following internal options Operational Fault Management Allows the controller to take autonomous actions when a failure occurs Do not disable this function unless specifically instructed to do so as part of a troubleshooting diagnostic activity Automatic Rebuild Management
146. or codes Manual No 775084 5 13 Physical Device and Logical Drive Monitoring e The number of soft hard parity and miscellaneous errors registered e The identity of the enclosure where the physical drive resides In the disk drive Device Information dialog box Click the Reset Errors button to return all error tallies to 0 If the physical device is unconfigured the Make Hot Spare button may be available to set this device as a hot spare If the disk drive s status is Rebuild the Rebuild button may be available so that you can initiate a physical device rebuild Note The rebuild option for dual active controllers is only available by slot 0 Check the controller information to see which controller is in slot 0 The controller in slot 0 will be able to perform the rebuild If the disk drive s status is dead you will see a failure indicator display on the Device Information page in the Device State section Make Online and Make Offline buttons should be used with great caution Refer to the online help file or call Mylex for support on these options The Prepare to Remove button causes a specific physical drive to spin down in preparation of removal The specified physical drive is then removed from the fibre loop Note The Prepare Drive for Removal feature only supports enclosures equipped with an SES device In the absence of a working SES device the request to prepare a drive for removal is rejected by the
147. ow overflow 12 1 A hard disk has A physical Replace the failed device failed A physical device user action caused the physical device to fail Manual No 775084 Overview Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 4 A new hard disk has been found A physical device has been powered on A new physical device has been added Controller was powered on Controller was added System has rebooted None A hard disk has been removed User removed an unconfigured physical device An unconfigured physical device failed A controller was removed A controller powered off Replace the device if needed SCSI command timeout on hard device Physical device has been removed Physical device failed nComman d time out value is not correct None SANArray Manager Client Installation Guide and User Manual Event Information Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 22 3 Parity error found A physical device did not generate proper parity The controller failed did not check parity properly Cable failed Improper cable length Another physical device interfered Some outside environment affected the data on the cable eg radio frequency signal Terminator is not connected Improper termina
148. perate Alam UPS Enror Information OOKHigh OOK OOK 30C 00K Type SES 10KLow 10K 2Absent 2Absent Figure 5 15 SES Enclosure Information Details Page Enclosure Information Details page displays the following about the currently available Fibre enclosures The status of each enclosure identified by an icon and an enclosure number as well as one of the following expressed in text e OK All components are optimal e Critical Some component has failed one more failure may result in data loss e Failed A failure has occurred that may result in data loss The access status of each enclosure which indicates the controller s ability to communicate with the enclosure The status values are e OK Access is optimal e Critical Only one access path remains of the several that were detected previously If the last access path is lost the controller will take steps to protect the data e Lost The enclosure is unreachable by the controller Any failures in the enclosure while this state exists will not be sensed by the controller Manual No 775084 5 19 Enclosure Monitoring and Management The speed of the fans in the enclosure not shown for SAF TE enclosures Each fan is designated with a number The values are e Absent The fan is not installed or has failed in an undetectable way e OK The fan is optimal Fan speed is shown as either Stopped Low or High e Failed The fan is inst
149. plication from launching again if SANArray Manager detects that it is already running e Type the name of an application to launch should certain events or messages require it e If you don t remember the name or path of the application click the Browse button 4 To test the application launch using the settings you ve input click Test 5 When you are satisfied with the application you ve set up click OK Your new application entry appears in the lower window of the Alarm Setup dialog box Refer back to Figure 4 17 for an example Remove an Application to Launch 1 Select the Launch Application alarm type in the upper window of Alarm Setup 2 Select the Launch Application entry to remove in the lower window of Alarm Setup 4 16 SANArray Manager Client Installation Guide and User Manual Configuration 3 Click Remove 4 Atthe confirmation message click Yes to remove the application entry or click No to keep the entry Properties For any of the four alarm types Pager Fax Email Application you may view a particular entry s settings by selecting an entry in the lower window of Alarm Setup and clicking Properties Communication In the Settings dialog box under the Communication tab Figure 4 19 you have the option to change any of the following Figure 4 19 Settings Dialog Box Communication Baud Rate Select the baud rate appropriate to your communication hardware Port Select the C
150. put click Test 5 When you are satisfied with the Email you ve set up click OK Your new Email entry appears in the lower window of the Alarm Setup dialog box Refer to Figure 4 15 for an example Remove Email 1 Select the Email alarm type in the upper window of Alarm Setup 2 Select the Email entry to remove in the lower window of Alarm Setup 3 Click Remove 4 At the confirmation message click Yes to remove the Email entry or click No to keep the entry Add an Application to Launch 1 Select the Launch Application alarm type in the upper window of the Alarm Setup dialog box Figure 4 17 Settings 2 x Alert Preferences Alarm Setup Communication Event Editor Pager g Fax EF Email E Launch Application E C Program Files MyApps Notify exe Application Name Launch Once VAI C Program Files MyApps Notify exe Yes Remove Preperties OK Cancel Figure 4 17 Launch Application Alarm Setup 2 Click Add Manual No 775084 4 15 Setting and Modifying User Preferences The Launch Application setup box is displayed as shown in Figure 4 18 Launch Application 24 x M Enabled V Launch Only Once mm Name Po Bros Te Cancel Figure 4 18 Launch Application Setup Dialog Box 3 In the Launch Application box e Enable or disable this Application entry using the Enabled check box e Enable Launch Only Once if you want to prevent the ap
151. puter 1 0 Bottleneck Any resource in the I O path whose performance limits the performance of a storage or I O system 1 0 Bus Any path used for the transfer of data and control information between I O adapters and storage controllers or storage devices See also Bus on page G 4 Manual No 775084 G 15 1 0 Intensive An application whose performance depends strongly on the performance of the I O system I Os Per Second Number of I O transactions per second 120 Intelligent Input Output a driver that uses special I O processes to eliminate T O bottlenecks The processes deal with interrupt handling buffering and data transfer An I O driver also includes an OS specific module OSM which handles higher level OS details and a hardware device module which knows how to communicate with certain devices ISA Industry Standard Architecture a standard bus computer interconnection architecture associated with the IBM AT motherboard It allows 16 bits at a time to flow between the motherboard circuitry and an expansion slot card and its associated device s JBOD Just A Bunch of Disks Drives a number of disk drives usually in an enclosure JBOD implies that the disks do not use RAID technology and function independently All Mylex RAID controllers support JBOD mode Kilobyte 2 9 1 024 Abbreviated as K or KB Latency 1 The time between the making of an I O request and completion of the request
152. r File Menu The File menu Figure 3 3 contains the following options e Open Configuration Ctrl O Loads a configuration from disk and saves it to the controller See Loading a Configuration from Disk on page 4 6 e Save Configuration Ctrl S Saves a configuration file to a new filename disk and or directory e Clear Configuration Removes configuration information for the selected controller A Caution Although there are confirmation checkpoints and warnings following selection of this option remember that all existing configuration and file data on all drives connected to the controller will be deleted e Exit Exits the SANArray Manager Client Open Configuration Save Configuration Clear Configuration Exit Figure 3 3 File Menu 3 6 SANArray Manager Client Installation Guide and User Manual Startup amp Navigation View Menu The View menu Figure 3 4 contains the following options Global Status View Toggles the Global Status View window The Global Status View window opens by default when SANArray Manager Client starts Controller View Toggles the Controller View window showing channel ID target information and physical device logical drive configurations for the controller selected in the controller selection box Statistics View Toggles the Statistics View window display for the controller selected in the controller selection box Log Information Viewer Toggles the Log I
153. r owes Figure 4 14 Fax Setup Dialog Box 3 In the Fax box e Enable or disable this Fax entry using the Enabled check box e Type the fax phone number of someone who will receive a fax e Type a fax header if desired 4 To test the fax using the settings you have input click Test 5 When you are satisfied with the Fax you have set up click OK Your new Fax entry appears in the lower window of the Alarm Setup dialog box Refer to Figure 4 13 for an example Remove a Fax 1 Select the Fax alarm type in the upper window of Alarm Setup 2 Select the Fax entry to remove in the lower window of Alarm Setup 3 Click Remove 4 At the confirmation message click Yes to remove the Fax entry or click No to keep the entry Manual No 775084 4 13 Setting and Modifying User Preferences Add Email 1 Select the Email alarm type in the upper window of the Alarm Setup dialog box Figure 4 15 E Launch Application SAM Alert Figure 4 15 Email Alarm Setup 2 Click Add The Email setup box is displayed as shown in Figure 4 16 s o _ cme Figure 4 16 Email Setup Dialog Box 3 In the Email box Enable or disable this Email entry using the Enabled check box e Type the email address of someone who will receive an email 4 14 SANArray Manager Client Installation Guide and User Manual Configuration e Type the subject of the email 4 To test the email using the settings you have in
154. r Client Log Information Viewer Each line in the Log Information Viewer identifies a single event error status warning etc which was noted during monitoring by a file server running GAM Server and was transmitted by that server to this client workstation Relevant details accompany the event e Event ID Displays an icon showing whether the event is informational cautionary a warning etc plus the identification number assigned to this event SANArray Manager Client Installation Guide and User Manual Startup amp Navigation e Severity The severity level of this event e Source The IP address or name of the file server that is the sender source of this event e Source Time Year month day of the month time of day hh mm ss at the source file server s location when this event occurred e Device Address Relevant channel target or other data pertaining to the source of this event Description Text of the message describing what occurred e Sequence Seq Number representing where this event fell in a stream of events from the same source Local Time Year month day of the month time of day hh mm ss at the local client workstation s location when this event arrived Manual No 775084 3 5 Navigating SANArray Manager Client Menu Bar and Menus SANArray Manager Client contains a menubar Figure 3 2 in the SANArray Manager window File View Administration Window Help Figure 3 2 Menu Ba
155. r groups for the client All duplicates are eliminated Note For a server to be found on the network it must be defined in a server group on the SANArray Manager client The server must be running the GAM server driver software e A connection to the server is attempted e For each controller on this server send the appropriate command The WWN of the host the controller and partner controller are returned e An association between the IP address and the host WWN is made This information is used to construct the host list Note This determination process can take a long time This operation is performed the first time the Host to SANmapping page is entered This operation is not repeated unless the Refresh Hosts button is activated Each row in the table identifies a host and each column identifies a logical drive An X in the table connects a host with a logical drive A means the host is not connected The connections are toggled by left clicking the mouse on the entry As entries change in the Host to Logical Drive Mapping list the Logical Drive to LUN Mapping information is updated The following rules are enforced e Logical drives may share LUNs as long as the same host does not access both logical drives e The host to logical drive mapping can be made before assigning a LUN to the logical drive A LUN assignment can be made at any time Only valid LUN assignments are displayed in the LUN selecti
156. r previous maximum values To exit e Click Close to exit from Statistics View OR e Click another Statistics View tab Manual No 775084 5 33 Process Status Monitoring Process Status Monitoring If logical drives are currently being initialized open the Initialize Status box as shown in Figure 5 26 to monitor the initialize progress or cancel the process Figure 5 26 Select Initialize Status Initialize Status Controller 2 Clear all Figure 5 27 Initialization Status Box The Initialize Status box Figure 5 27 displays the progress of one or more full logical drive initializations To cancel ALL drive initializations at the same time Click the Select All button which selects all drives for cancellation then click Cancel to stop all the initializations 5 34 SANArray Manager Client Installation Guide and User Manual Monitoring To cancel individual drive initializations Check the box es of the drive s to cancel then click Cancel to stop only those initializations If all drives are selected for cancellation and you wish to reverse that Click the Clear All button which deselects all drives for cancellation Click Close to close the Initialize Status box at any time Rebuild Status If a rebuild process is currently underway open the Rebuild Status box as shown in Figure 5 28 to monitor the rebuild progress or cancel the process v Global Status View Controller View Statist
157. remain grayed out Manual No 775084 4 37 Running RAID Assist Set any of the following Disk Channels options e Auto Negotiate Sets an Auto Negotiate speed for all the backend disk channels e 1 Gb Sets a 1 Gigabits second speed for all the backend disk channels e 2 Gb Sets a 2 Gigabits second speed for all the backend disk channels Note At this time 4Gb and 10Gb speeds are not supported they will remain grayed out Recording Your Changes Click Apply button to accept all of the changes in the Basic Advanced Expert Fibre and or Speed Controller Options dialog boxes or the Cancel button to discard them Running RAID Assist RAID Assist is the SANArray Manager Client s wizard for the setup and configuration of new logical drives and disk arrays In its simplest form RAID Assist provides an Auto Configuration option which immediately configures all available drives into an optimal RAID 5 configuration RAID Assist s Assisted Configuration sets up a new array according to predefined parameters and asks the user questions to gather the key information necessary to build the array If configuration needs go beyond what Auto or Assisted Configuration offers the Manual Configuration option allows additional control over logical drive setup parameters including LUN Mapping 4 38 SANArray Manager Client Installation Guide and User Manual Configuration Entering RAID Assist Open RAID Assist by clicki
158. rver during this session which uses the same password This amounts to an automatic sign on to additional servers and should be used with caution Uncheck the box if you want to retain the option of signing on to each server you wish to access individually 3 Click the Sign On button Manual No 775084 4 3 Setting Up Server Groups and Servers Setting Up Server Groups and Servers This section describes how to setup connections to server groups and servers Adding a Server Group to the Server Group List Open Define Server Groups as shown in Figure 4 3 This is not necessary if you are starting SANArray Manager and no Server Groups are defined The Define Server Groups dialog box will display automatically Sign On Raid Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions Settings Figure 4 3 Select Define Server Groups In the Define Server Groups dialog box Figure 4 4 do the following 1 Click the Add button under the Server Groups section of the dialog box Define Server Groups 121 xi Servers 9 17 8168 Figure 4 4 Define Server Groups Dialog Box 4 4 SANArray Manager Client Installation Guide and User Manual Configuration 2 Inthe Adding Item dialog box type the name of the server group that you are adding 3 Click OK The Define Ser
159. rvers if you want to view all the servers that are connected to this workstation Item 4 is the controller selection box When selected the box displays the controller name C 0 C 1 etc and controller type DAC960FL DACFFX etc of each External RAID Controller connected to the currently selected server For External RAID Controller duplex pairs a double pointed white arrow connects the controller pair selections Components of the Global Status View Window The major components of the Global Status View window Figure 3 1 are described below 9 Item 5 is an icon that represents the currently selected file server running the GAM Server component The icon identifies e the IP address e g 10 17 3 172 or name e g LAB_A of the server e the network operating system running on the server e g 2000 Windows 2000 NT Windows NT NW Novell NetWare etc e the operational status of the server green functioning yellow attempting connection red X unable to connect e the number of DAC controllers connected on the server with a controller operational status light green functioning yellow critical red X down or nonfunctional Item 6 is an icon that represents a currently unselected file server running the GAM Server component The icon identifies the same information described above Components of the Log Information Viewer 7 3 4 Item 7 in Figure 3 1 is the SANArray Manage
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161. s 4 25 vi SANArray Manager Client Installation Guide and User Manual Fibre Controller Options 0 cceeceeeceeeeeeeeeeeeeeteeeeeeeeneeees 4 27 Recording Your Changes cecceeceeeseeeeeeeeeeeeeeeeeteeenneeee 4 28 Mylex External RAID Controllers with Firmware 7 X essees 4 29 Basic Controller Options eeceeceesceeeeeeeeeeeeeeeseeeeeeeeeeeseetees 4 29 Advanced Controller Options eeceesceseeeeeeeeeeeeeseeeneeeneetees 4 30 Expert Controller Options ssessssessresnerssrerrreresrsrnrsrnernrrernsns 4 33 Fibre Controller Options ecceeceeeeeseeeeeeeeeeeeeeeteaeeeeeeeneeees 4 35 Speed Controller Options eeceeeceeseeneeeeeeeeeeeeneeseeeeeneeeaees 4 36 Recording Your Changes cccceeceeeseeeeeeeeeeeeseeeeneeeneete 4 38 Running RAID ASSISt aai re areae aa apaa aaea 4 38 Entering RAID ASSISt ce eeeeeeeeseeeeeneeeeeneeeeeneeeeesneeeenneeeeeneees 4 39 Automatic Configuration eccecceeseeeeeeeeeeeeneeeeeeeeneeseeeeneeeaes 4 40 Assisted Configuration eeecceccceeseeseseeeeeeseeeeeeeseaeeeaeeeeeteas 4 43 Fault Tolerance Tab eeeeesseeseseeeeeneeeeeseeeeneeeeeneeeeaaes 4 45 Logical Drives Tab nisinsin eee tee eeeeeeetee 4 48 Optimization Tab sinnena 4 50 Finish Fab pian iawn nt a ed ee 4 51 Manual Configuration ccceeeeeeceeeeeeeeeeeeneeeeeeeeeeeeeeseeeeeatenes 4 52 External RAID Controller Operation Overview s s s 4 58 LUN Mapping
162. s controller and unconfigured drive space must remain e Expand Array Restripes data in your array across additional unconfigured drives to expand the capacity of the array Manual No 775084 4 43 Running RAID Assist For example open New Configuration as shown in Figure 4 38 Assisted Configuration Figure 4 38 Select New Configuration Assisted Configuration walks you step by step through a new configuration Figure 4 39 Each tab in the Assisted Configuration dialog box collects information about an important aspect of the configuration you wish to set up During this process you provide answers to several questions 4 44 SANArray Manager Client Installation Guide and User Manual Configuration Fault Tolerance Tab Configure the following options Figure 4 39 for fault tolerance 1 Do you want Fault Tolerance Yes No 2 Do you want a Hot Spare Yes No Assisted Configuration New Configuration 204 32 130 202 Controller 2 Fault Tolerance Raid Level Logical Drives Optimization Figure 4 39 Assisted Configuration Fault Tolerance Manual No 775084sss lt s sSSSSSSSSS 5 Running RAID Assist RAID Level Tab If Fault Tolerance Was Yes Figure 4 40 choose between e Parity error correction RAID 5 RAID 3 or e Fully redundant drives RAID 1 RAID 0 1 Assisted Configuration New Configuration 192 9 10 201 Controller 0 Fault Tolerance Raid Level Logical Drives
163. s execution 2 Short for rotational latency the time between the completion of a seek and the instant of arrival of the first block of data to be transferred at the disk s read write head Glossary Logical Drive The logical devices presented to the operating system System drives are presented as available disk drives each with a capacity specified by the Mylex RAID controller Logical Drive States A logical system drive can be Online on page G 19 Critical on page G 7 or Offline on page G 19 Notice that the term online is used for both physical and logical drives LUN Logical Unit Number a SCSI representation of a system drive on a given channel and target ID This may be a single device or an array of devices configured to behave as a single device LUN Mapping A method whereby a LUN ID is assigned to a system drive allowing a LUN to be make accessible through specific controllers and ports using system drive affinity LVD Low Voltage Differential a form of SCSI signaling that uses data high and data low signal lines to increase transmission distances over those of single ended conventional SCSI signaling lines LVD allows for cable lengths of up to 12 meters approximately 39 feet with up to 15 devices LVD also lowers noise power usage and amplitude LVD differs from conventional differential signaling in that only positive and negative values are distinguished not voltage levels
164. signaling standards and conformity ANSI represents the U S in the ISO International Standards Organization Manual No 775084 G 1 Application Program A program designed to perform a specific function directly for the user or in some cases for another application program Examples of applications include word processors database programs Web browsers development tools drawing paint and image editing programs and communication programs Application Server A centralized computer that holds and distributes application programs to users ASIC Application Specific Integrated Circuit a chip created for a specific application Array Multiple disk drives configured to behave as a single independent disk drive See also Disk Array on page G 9 Asynchronous Data Transfer Data transfer not synchronized to a set timing interval Asynchronous devices must wait for a signal from the receiving device after each byte of data Auto Swap The exchange of a pre installed replacement unit in a disk system for a defective one the disk system performs the substitution without human intervention while continuing to carry out its normal functions compare with Hot Swap on page G 15 Glossary Automatic Rebuild Mylex controllers provide automatic rebuild capabilities in the event of a physical disk drive failure The controller performs a rebuild operation automatically when a disk drive fails and both of the fol
165. st in the event log 702 3 Request Sense A physical drive Interpret the has generated Key ASC ASCQ an error and take appropriate action A 18 SANArray Manager Client Installation Guide and User Manual Event Information Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 703 3 Set Real Time Real Time Clock None Clock was set 800 3 New Configuration Anew None Received configuration was downloaded to controller 801 3 Configuration Controller was None Cleared told to clear the configuration 802 3 Configuration Invalid The controller None found an invalid configuration 803 3 Controller On Disk The controller None Access Error could not read the configuration off of the disk 804 3 Configuration On The controller None Disk Converted converted a down level configuration on disk 805 3 Configuration On The controller None Disk Import Failed could not import the configuration 806 4 A Debug Dump The controller Contact field exists on this aborted and support for system created debug assistance in dump retrieving the information data 807 4 A Debug Dump The partner Contact field exists on this controller support for system aborted and assistance in created debug retrieving the dump data information Manual No 775084 A 19 Overview A 20 SANArray Manager Client Installation Gui
166. t mirroring M O R E Mylex Online RAID Expansion an advanced configuration mode that allows expansion of any unconfigured or hot spare drive into the expandable drive group while the controller is online with the host For example a system using a five disk drive RAID set can add another disk drive to create a six disk drive RAID set The M O R E operation can be performed on all RAID levels except JBOD Glossary Mylex s Global Array Manager GAM supports two M O R E features Expand Capacity allows logical drive expansion for FFx external controllers only Expand Array allows array expansion for both PCI and FFx external controllers During the RAID set expansion process which includes re striping data from the old smaller RAID set to the new expanded RAID set the controller continues to service host I O requests MTBF Mean Time Between Failures the average time from start of use to failure in a large population of identical systems computers or devices MTDL Mean Time until Data Loss the average time from startup until a component failure causes a permanent loss of user data in a large population of disk arrays NVRAM Non Volatile Random Access Memory a memory unit equipped with a battery so that the data stays intact even after the main power had been switched off Offline A Logical Drive on page G 17 is in an offline state if no data can be read from it or written to it Offline does
167. t failed to operate properly and was killed by the controller When the controller detects a failure on a disk it kills that disk by changing its state to dead A dead SCSI drive can also be present and powered on but a SCSI drive in a dead state does not participate in any I O activity no commands are issued to dead drives Rebuild A SCSI disk drive is in a rebuild state while it is in the process of being rebuilt During this process data is regenerated and written to the disk drive This state is also referred to as Write Only WRO Glossary SCSI Interrupt Steering Logic SISL Architecture that allows a RAID controller such as AcceleRAID 150 200 or 250 to implement RAID on a system board embedded SCSI bus or a set of SCSI busses SDRAM Synchronous Dynamic Random Access Memory a form of dynamic random access memory DRAM that can be coordinated or synchronized to the clock speed of the computer Sector The unit in which data is physically stored and protected against errors on a fixed block architecture disk Segment Size See Cache Line Size on page G 5 Sequential I O A type of read and write operation where entire blocks of data are accessed one after another in sequence as opposed to randomly Server A computer program that provides and manages services to other computer programs on the same or other computers The computer that a server program runs in is a
168. t the entire External RAID Controller configuration you ve specified across all Manual Configuration tabs There will be a confirmation message followed by a Do You Want To Reset message Reset will take a couple of minutes 4 68 SANArray Manager Client Installation Guide and User Manual Chapter 5 Monitoring Introduction Monitoring activities involve the following e Monitoring events messages sent by various servers to the client workstation s e Monitoring controller activity reviewing controller configuration and other information e Reviewing physical device and logical drive information and locating arrays e Monitoring and managing SCSI and Fibre enclosure information e Monitoring the performance of drives and controllers reviewing historical performance data Statistics View and Performance Analysis e Monitoring the status of ongoing processes such as initialization rebuild consistency check and expanding capacity of an array e Monitoring the status of an Intelligent Battery Backup Unit BBU and recharging reconditioning the battery if needed Event Monitoring Global Array Manager Server monitors activity and performance of all devices and controllers attached to the server When an identified activity occurs which results in an event whether severe such as a hard disk failure or informational such as assignment of a drive to hot spare status the event is sent to selected
169. te i Figure 5 24 Statistics View Pie Graph Display The Pie Graph page displays data for the analysis strings specified in the display window in the form of a pie chart Note Because of the nature of a pie chart the Operation selected for your analysis strings should be the same If it is not the data may or may not be useful To update the data in the pie graph to the most current data Click Refresh Display To exit e Click Close to exit from Statistics View OR e Click another Statistics View tab 5 32 SANArray Manager Client Installation Guide and User Manual Monitoring Bar Graph Click the Bar Graph tab to open the Bar Graph data page Figure 5 25 Statistics 204 32 130 200 x Settings Line Graph Pie Graph Bar Graph Device Operation Color Scale 0 Ctl0 Chn T gt0 T gt2 T gt4 Reads E cE 100 88 1 Ctl0 Chn Tgt1 Tgt5 Tgt6 Reads N E 100 84 Reset Max Close Figure 5 25 Statistics View Bar Graph Display The Bar Graph page displays data for each of the analysis strings specified in the display window as a separate bar To reset the maximum value if values consistency go off the scale Click Reset Max The gray portion of the bars displayed in the upper window gives an indication of a maximum value that was hit relative to the current data in the colored bars In the example in Figure 5 25 both data bars are currently performing under thei
170. tem fails the system is spared data loss by virtue of the striping with parity present across the logical drive RAID 3 RAID 5 or the total redundancy of data RAID 1 RAID 0 1 The failed drive needs to be replaced and the failed drive s data must be rebuilt on a new drive to restore the system to fault tolerance once again The device rebuild function performs this task A failed drive s data can be rebuilt to e The original drive if this drive happens to be still functional e A hot spare standby drive present for just this purpose or e A drive inserted in place of the failed drive If you need to carry out a device rebuild perform the following procedure 1 Reinsert the removed drive that caused the failure if it is still a good drive or replace the failed drive with a new drive of equal or greater capacity 2 Double click the relevant physical device in the Controller View window The Disk Device Information dialog box will open and the Rebuild button should be available Figure 6 2 Manual No 775084 6 3 Using the Flash Utility Disk Device Information Channel 0 T arget 3 Lun 0 m Device Inquiry Data Vendor SEAGATE Product ST173404FC Revision 0003 Bus Width z Syne No Soft Reset No ANSI Version SCSI 3 Linked Yes CmdQue Yes Serial 3CEO254V Loop ID a i m Device State Nego Transfer Speed 100 MB Sec Status Dead Nego Bus Width a Sector Size 512 Bytes
171. tion It may not be possible to recover from this error Contact your service representative SCSI device reset Firmware has done reset to recover from error User has done a reset None Physical device status changed to offline None Physical device status changed to Hot Spare None Physical device status changed to rebuild None Manual No 775084 Overview Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 53 3 Physical device ID None did not match 54 3 Physical device None failed to start 55 3 Physical device None negotiated different offset than config 56 3 Physical device None negotiated different bus width than config 57 1 Physical drive Physical drive Replace the missing on startup missing physical drive or power on all enclosures 59 3 Physical drive is Physical drive None switching from a removed or channel to the other channel failed channel 96 1 Device Loop Id Device Loop Id Change index Conflict Soft Conflict selector to Addressing Detected on disk enable hard Detected channelresulting addressing as in Soft per enclosure Addressing manufacturer s Potential data specification corruption 128 4 Consistency check User started a None is started consistency check Raidbld started consistency check A 6 SANArray Manager Client
172. tion Target device generated unknown phase sequence Physical device predicted some future failure External RAID logical device may have become critical A physical device failed and spare was available A physical device failed and no spare was available A spare was added Client started the rebuild on user s request User replacd the failed device and raidbld started the rebuild If problem occurs frequently Replace the device Contact your service representative Follow device vendor s defined action None None SANArray Manager Client Installation Guide and User Manual Event Information Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 7 4 Rebuild is over Rebuild None completed successfully 8 3 Rebuild is cancelled User cancelled Restart the the rebuild rebuild if Higher priority required rebuild started 9 2 Rebuild stopped Due to some Try rebuild with error unknown error again on the controller rebuild failed 10 2 Rebuild stopped New physical Replace the with error New device failed physical device device failed New physical device may not be compatible with MDAC hardware firmware 11 2 Rebuild stopped At least one At least one because logical more physical more physical drive failed device failed in device failed in the array Bad the array Bad data table data table overfl
173. tion E dit Configuration 192 9 10 55 Controller 0 1 Welcome 2 Disk Arrays 3 Logical Drives 4 Lun Mapping Logical RAID Logical Controller 0 Controller 0 Drive Level Size MB Port 0 Port 1 Figure 4 51 Select LUN Mapping WARNING If Global Array Manager Server is running under Windows NT be sure to assign each logical drive to a specific individual port not to all ports When logical drives are available to ALL host ports Windows NT may assign multiple volumes e g C and E to the same physical media Data corruption and or data loss can result Note For External RAID Controllers equipped with firmware that provides LUN Balancing the above WARNING will not apply as the balancing of LUNs among controller port combinations will avoid duplicate assignment Users with Administrative access are free to alter the default settings For each logical drive select a LUN in the drop down list box which corresponds to the mapping desired 4 60 SANArray Manager Client Installation Guide and User Manual Configuration Note the following The Clear All button sets all LUN assignments to None You can then select individual assignments more closely while allowing several assignments of inaccessible WARNING DO NOT leave all assignments at None This indicates that no logical drives are accessible to any port on any controller The Set Sequential button sets all LUN assignments sequent
174. tion s for details 4 58 SANArray Manager Client Installation Guide and User Manual Configuration LUN Mapping Overview External RAID Controller Firmware 5 x and below LUN Mapping allows logical drives or system drives to be made available or unavailable on one or more host ports The mapping is performed by assigning Logical Unit Numbers LUNs to logical drives The LUN assignments are per host port and are independent of the assignments on other host ports Logical drives may be assigned only one LUN per host port By not assigning a LUN to a logical drive on a particular host port that logical drive is made inaccessible to that host port LUN Mapping in SANArray Manager FW 5 x or below For External RAID Controllers using Firmware 5 x or below SANArray Manager implements LUN Mapping by allowing the user to map Logical Unit Numbers LUNs to specific controller port combinations After configuring the desired number of logical drives on the Mylex External RAID Controller click the LUN Mapping tab in Manual Configuration Figure 4 51 The Controller Port columns are shown or not shown depending on the current controller configuration of host ports and duplex controllers By default these logical drives are made available to all existing host ports in the configuration LUNs are assigned automatically in sequential order for each port Manual No 775084 4 59 External RAID Controller Operation Overview Manual Configura
175. tionships that have not previously been discovered for example performing a deeper analysis of buying records may indicate seasonal preferences that have not been considered Data Transfer Rate The amount of data per unit of time moved through a channel or J O Bus on page G 15 in the course of execution of an I O load usually expressed in MBps Degraded Mode A RAID mode used when a component drive has failed Desktop PC Standard processor based personal computer used as an individual station not as a server Device Driver A software program that controls a particular type of device attached to a computer such as a RAID subsystem printer display CD ROM disk drive etc Differential A protocol that transmits through a current loop rather than by changes in voltage reducing susceptibility to electrical interference DIMM Dual In line Memory Module a circuit board that has memory chips Instead of installing two SIMMs for the 64 bit memory path on a Pentium processor one DIMM can be installed See also SIMM on page G 28 Glossary Disk A non volatile randomly addressable re writable data storage device including rotating magnetic and optical disks as well as solid state disks or other electronic storage elements Disk Array A collection of disks from one or more commonly accessible disk systems Disk arrays also known as RAID allow disk drives to be used together to improve fault toleran
176. to select the topology used by the controller s the port to be used the Host to Logical Drive Mapping for each logical drive and the Logical Drive to LUN Mapping for each logical drive Figure 4 53 shows an example of Host to SANmapping Manual No 775084 4 63 External RAID Controller Operation Overview Manual Configuration E dit Configuration 9 17 8 166 Controller 0 1 Welcome 2 Disk Arrays 3 Logical Drives 4 SAN Mapping gt Topology gt Port Selection _ Logical Drive to LUN Mapping Muli TID x C COPpO Gor A CIPO GiP7 I Enable All Hosts m Host To Logical Drive Mapping Lun Seaain F Logical Drive 0 Raid5 1782MB 0 20 00 00 e0 8b 01 3a 02 x 1 Raid3 1866MB WALLACE x 2 Raidd 1 830MB 3 Raid5 1086MB 4 Raid3 1281MB 5 Raid5 26001MB 6 Raid0 1 12494MB 7 JBOD 8667MB uNe wN Not Connected Connected Found Change Host Tag Clear All Restore Apply Cancel Figure 4 53 A Host to SANmapping Scenario Selecting the Topology Host to SANmapping provides the user with four possible dual active controller configuration topologies 4 64 Inactive Port Controller 0 port 0 and controller 1 port 1 are active During failover the inactive port on the partner takes over for the active port on the failed controller Supported on all products with two host Fibre ports Master Slave Both ports on controller 0 are active During failover
177. to work in a specific operating system environment Standard Disk Drive This term refers to a hard disk drive with SCSI IDE or other interface attached to the host system through a standard disk controller Standby Replacement of Disks See also Hot Spare on page G 14 One of the most important features the RAID controller provides to achieve automatic non stop service with a high Glossary degree of fault tolerance The controller automatically carries out the rebuild operation when a SCSI disk drive fails and both of the following conditions are true A standby SCSI disk drive of identical size is found attached to the same controller All of the system drives that are dependent on the failed disk are redundant system drives e g RAID 1 RAID 3 RAID 5 and RAID 0 1 Note The standby rebuild will only happen on the SAME DAC960 controller never across DAC960 controllers During the automatic rebuild process system activity continues as normal System performance may degrade slightly during the rebuild process To use the standby rebuild feature you should always maintain a standby SCSI disk in your system When a disk fails the standby disk will automatically replace the failed drive and the data will be rebuilt The system administrator can disconnect and remove the bad disk and replace it with a new disk The administrator can then make this new disk a standby The standby replacement table has a limit o
178. troller or I O adapter Also refers to one SCSI bus on a disk array controller Each disk array controller provides at least one channel CISC Complex Instruction Set Computing a general purpose CPU on page G 7 architecture which can support up to 200 instructions Cluster A group of terminals or workstations attached to a common control unit or server or a group of several servers that share work and may be able to back each other up if one server fails Cold Swap The physical exchange of a replacement unit in a storage system for a defective one The exchange requires human intervention and power must be removed from the storage system in order to perform the exchange compare to Hot Swap on page G 15 and Auto Swap on page G 2 Conservative Cache An operating mode in which system drives configured with the write back caching policy are treated as though they were configured for write through operation and the cache is flushed Consistency Check A process that verifies the integrity of redundant data A consistency check on a RAID 1 or RAID 0 1 configuration mirroring checks if the data on drives and their mirrored pair are exactly the same For RAID Level 3 or RAID Level 5 a consistency check calculates the parity from the data written on the disk and compares it to the written parity A consistency check from Mylex utilities such as Global Array Manager GAM or RAID EzAssist give the user the
179. ue on to logical drive setup Figure 4 49 Manual Configuration New Configuration 204 32 130 202 Controller 2 Reset Pano E fez e20 fie or z z Paos mae ea e e e pe ee Figure 4 49 Manual Configuration Logical Drives The Logical Drives tab in Manual Configuration is where you configure your disk arrays into logical drives Do the following 1 2 Select a RAID level for your first logical drive Supported RAID levels are RAID 0 RAID 1 RAID 3 RAID 5 RAID 0 1 and stand alone drive JBOD Only RAID levels compatible with the current configuration will be available in the list Type the amount of available logical or physical capacity for this logical drive If your total configuration will have only one logical drive which uses all available capacity the default sizes should not be changed If you intend to create additional logical drives now or later type a smaller number to reserve the desired amount of capacity Manual No 775084 4 55 Running RAID Assist Check the Write Cache box if you want this logical drive to use Write Back caching This improves performance but puts data at risk You should have a battery backup unit or uninterruptable power supply if selecting this feature Check the Init Drive box if you want this logical drive to be fully initialized at the conclusion of the configuration It is recommended that you check this option if available unless the controller is capab
180. upgrade SES Firmware certain procedures should be carried out to prepare the controllers and drives in the enclosure for the firmware upgrade Failure to carry out these procedures could lead to unexpected results and data loss Please contact a Field Service Representative or the Software Vendor for details on how to prepare enclosures controllers and drives for SES Firmware upgrade The SES Download flash utility is used to upgrade SES enclosure firmware by flashing the new code stored in an identified EFI Extensible Firmware Interface file to the enclosure s flash memory As maintenance releases of this code become available from the enclosure vendor this utility allows you to keep your enclosure current To upgrade your SES firmware 1 Select Administration gt Advanced Functions gt SES Download Administration Sanur Deme Server Groups RAID Assist Initialize Logical Drives Controller Information Enclosure Information Controller Options Intelligent BBU Scan Devices Advanced Functions Flash Utility a Shutdown Settings Retrieve Debug Dump Figure 6 8 Select SES Download The SES F W download dialog box opens 1 This feature is available only on limited Storage Subsystem platforms 6 8 SANArray Manager Client Installation Guide and User Manual Maintenance Processes SES FAW download Figure 6 9 SES Download Utility Dialog Box 2 Int
181. ure 6 20 The Shutdown Dialog Box To perform a shutdown 1 Click Prepare for Shutdown Steps are taken to prepare for a clean controller shutdown including the following e Switching to write through cache e Draining the cache 6 16 SANArray Manager Client Installation Guide and User Manual Maintenance Processes e Electrically disconnecting the BBU e Sending instructions to the partner controller to carry out the same actions Under Controller Status Preparing for Shutdown will be checked while the above steps are taking place 2 Click Refresh periodically to update status 3 When Ready to Power Off is checked under Controller Status click Cancel to exit the dialog box The user may now power off the controller The battery will remain charged and will not supply power to the cache To abort a shutdown or return a controller to normal operation 1 Click Return to Normal Operation 2 Click Cancel to close the dialog box then continue normal use of the controller through SANArray Manager To update status information from the controller during shutdown Click Refresh Manual No 775084 6 17 Performing a Controller Shutdown 6 18 SANArray Manager Client Installation Guide and User Manual Appendix A Event Information Overview SANArray Manager provides information about drive and controller failures as well as maintaining an event log SANArray Manager classifies the events it records into fi
182. ve severity levels described in Table A 1 All event information can also be found in the text file EventDef txt in the SANArray Manager Client Files folder of the SANArray Manager directory Table A 1 Severity Level Priorities and Descriptions Severity Description 0 Controller failure enclosure For example a power supply fan or 1 Serious The failure of a major component within the array physical drive 2 A consistency check fails or a rebuild on a drive 3 Warning SANArray Manager has failed to kill a drive or failed to start a rebuild 4 Informational Messages such as sign ons and system been put on standby stopped because of errors startups When a consistency check or a rebuild has finished for example or a physical drive has Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions 1 4 A hard disk has Rebuild been placed online completed Device was configured Manual on line was done None Manual No 775084 Overview Table A 2 SANArray Manager Events for External Controllers ID Severity Description Details Actions Hard disk error found Hard disk PFA condition found this disk may fail soon An automatic rebuild has started A rebuild has started Abad sector was found on the physical media Mechanical failure on the device Host SCSI device detected illegal instruc
183. ver Groups dialog box will reappear with the newly defined server group added Note The Discovered group contains a list of all server hosts that are sending events to the client Adding a Server to the Server Groups List With the Define Server Groups dialog box open Figure 4 4 do the following 1 Click the Add button under the Servers section of the dialog box 2 In the Adding Item dialog box type the IP address of the server that you are adding If you re running SANArray Manager Client under Windows Me Windows 2000 or Windows NT you may instead type the name of the server 3 Click OK The Define Server Groups dialog box will reappear with the newly defined server added 4 To add more servers to the group repeat steps through 3 5 Click OK in the Define Server Groups dialog box when you are finished After adding servers SANArray Manager returns to the Global Status window Note Select All Servers to see all servers in the Global Status view Manual No 775084 S 5 Loading a Configuration from Disk Loading a Configuration from Disk Load a previously saved configuration from disk as shown in Figure 4 5 Open Configuration Ctrl 0 Save Configuration Ctrl S Clear Configuration Exit Figure 4 5 Select Open Configuration 1 In the Open Configuration dialog box Figure 4 6 select the configuration file you wish to open to save to the controller Look in E
184. ves with the appropriate authentication again by means of the graphical user interface This includes removing physical devices from operation in a functioning disk array also known as killing or off lining a drive rebuilding drives selecting hot spares and initiating a consistency check or parity on arrays that are configured to support redundancy The Global Array Manager Server executes the management instructions specified by the SANArray Manager Client 1 2 SANArray Manager Client Installation Guide and User Manual Introduction Requirements Since SANArray Manager is a client server application the GAM Server software component provided in the Mylex Disk Array Controller Software Kit must be installed in one or more file servers in order for the SANArray Manager Client software component to operate Hardware and software requirements for installation and operation of the GAM Server component are described for each supported network operating system in the Global Array Manager Server Software Installation Guide and User Manual Client Hardware and Software PC compatible computer with an 80486 or higher class processor and at least 4 MB of system memory Pentium processor and 16 MB of system memory are recommended Network interface card connected to a functioning network Appropriate network device drivers for the installed network interface card For proper client component connectivity installed and functionin
185. wires copper or fibre optic over which electrical signals are transmitted Cables are used to connect peripherals such as disk arrays to computers and servers or to connect peripherals or components to each other Cache A temporary storage area for frequently accessed or recently accessed data Cache is used to speed up data transfer to and from a disk See also Caching on page G 5 Cache Flush Refers to an operation where all unwritten blocks in a Write Back Cache on page G 32 are written to the target disk This operation is necessary before powering down the system Cache Line Size Represents the size of the data chunk that will be read or written at one time and is set in conjunction with stripe size Under RAID EzAssist the cache line size also known as Segment Size on page G 27 should be based on the stripe size you selected The default segment size for Mylex RAID controllers is 8K Caching Allows data to be stored in a pre designated area of a disk or RAM Caching speeds up the operation of RAID systems disk drives computers and servers or other peripheral devices See also Cache on page G 5 CD ROM Compact Disk Read Only Memory a removable read only storage device similar to an audio compact laser disk holding up to 640MB of data Manual No 775084 G 5 Channel Any path used for the transfer of data and control of information between storage devices and a storage con
186. witch SAF TE SCSI Accessed Fault Tolerant Enclosure an open specification designed to provide a comprehensive standardized method to monitor and report status information on the condition of disk drives power supplies and cooling systems used in high availability LAN servers and storage subsystems The specification is independent of hardware I O cabling operating systems server platforms and RAID implementation because the enclosure itself is treated as simply another device on the SCSI bus Many other leading server storage and RAID controller manufacturers worldwide have endorsed the SAF TE specification Products compliant with the SAF TE specification will reduce the cost of managing storage enclosures making it easier for a LAN administrator to obtain base level fault tolerant alert notification and status information All Mylex RAID controllers feature SAF TE SCA Single Connector Attachment a type of interface designed to provide a standard connection such as connection pins for power cables and data wires for systems using hot swappable drives It includes data channel power and ID configuration all in one connector SCA drives connect to a SCSI backplane that provides power and configuration settings such as SCSI IDF and termination of the SCSI bus SCSI Small Computer System Interface a technological standard that defines connections between computers and peripheral devices Manual No 775084 G 25 S

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