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IBM ServeRAID: User’s Reference, Version 5.10

Summary of Contents for ServeRAID

Page 1: ...IBM ServeRAID User s Reference Version 5 10 SC33 P263 60...

Page 2: ...Appendix B Warranty information on page 183 and Appendix C Notices on page 195 Fifth Edition July 2002 Copyright International Business Machines Corporation 2002 All rights reserved US Government Use...

Page 3: ...it lisez le manuel Safety Information Vor Beginn der Installation die Brosch re mit Sicherheitshinweisen lesen Przed zainstalowaniem tego produktu nale y przeczyta broszur Informacje Dotycz ce Bezpiec...

Page 4: ...u o bezpe nosti Preden namestite ta izdelek preberite knji ico Varnostne informacije Antes de instalar este producto lea la Informaci n de Seguridad L s s kerhetsinformationen innan du installerar den...

Page 5: ...Connect and disconnect cables as described in the following table when installing moving or opening covers on this product or attached devices To connect 1 Turn everything OFF 2 First attach all cable...

Page 6: ...er supply do not turn off the electrical current supplied to the device The device also might have more than one power cord To remove all electrical current from the device ensure that all power cords...

Page 7: ...iptions 32 Chapter 4 Configuring ServeRAID controllers 35 Obtaining ServeRAID updates 35 Updating BIOS and firmware code 35 Configuring the ServeRAID controller 36 Viewing your configuration 44 Gettin...

Page 8: ...icrosoft Cluster Server software on Windows NT 4 0 119 Installing the Microsoft Cluster Server software on Windows 2000 126 Chapter 15 Monitoring and updating an IBM ServeRAID Cluster Solution 135 Che...

Page 9: ...support 176 Hardware service and support 176 Part 5 Appendixes 177 Appendix A Creating ServeRAID diskettes 179 Creating diskettes on Windows 180 Creating diskettes on IBM OS 2 180 Creating diskettes...

Page 10: ...x IBM ServeRAID User s Reference Version 5 10...

Page 11: ...ess You can refer to the information when configuring one or more devices attached to a ServeRAID controller Chapter 5 Installing ServeRAID device drivers on page 49 contains information about install...

Page 12: ...sites to obtain future code and information updates for the ServeRAID controller Appendix A Creating ServeRAID diskettes on page 179 contains instructions for creating the IBM ServeRAID Support diske...

Page 13: ...drive and operatingsystem is the specific operating system used in the ServeRAID installation The device drivers are also located on the operating system specific IBM ServeRAID Support diskettes Serve...

Page 14: ...x 2 of 2 diskette v IBM ServeRAID Support for Caldera OpenLinux 1 of 2 diskette v IBM ServeRAID Support for Caldera OpenLinux 2 of 2 diskette v IBM ServeRAID Support for SuSE Linux diskette v IBM Serv...

Page 15: ...publication from the IBM Support Web site See Downloadable files from the World Wide Web on page 141 for additional information In addition the following IBM Redbooks might be of interest v Implementi...

Page 16: ...xvi IBM ServeRAID User s Reference Version 5 10...

Page 17: ...Part 1 Installation and configuration Copyright IBM Corp 2002 1...

Page 18: ...2 IBM ServeRAID User s Reference Version 5 10...

Page 19: ...ckage contents In addition to this book the ServeRAID option package contains v IBM ServeRAID Support CD See IBM ServeRAID Support CD on page xiii for more detailed information v One of the following...

Page 20: ...nd Windows NT only No Yes Yes Yes IPSMON NetWare only Yes Yes Yes Yes Clustering Windows NT and Windows 2000 only No Yes Yes Yes Failover Windows NT and Windows 2000 only No Yes Yes Yes Connector loca...

Page 21: ...ntaining a lithium battery Statement 2 CAUTION When replacing the lithium battery use only IBM Part Number 33F8354 or an equivalent type battery recommended by the manufacturer If your system has a mo...

Page 22: ...u can attach external SCSI devices to the external Channel 1 and Channel 2 connectors You cannot attach internal and external SCSI devices to the same channel For example you cannot attach devices to...

Page 23: ...ID 4Lx controller has one independent SCSI channel connector Channel 1 This SCSI channel supports up to 15 physical devices You can attach internal SCSI devices to the internal Channel 1 connector You...

Page 24: ...water v Heat to more than 100 C 212 F v Repair or disassemble Dispose of the battery as required by local ordinances or regulations ServeRAID 5i controller The ServeRAID 5i controller has no independ...

Page 25: ...taining a lithium battery replace it only with the same module type made by the same manufacturer The battery contains lithium and can explode if not properly used handled or disposed of Do not v Thro...

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Page 27: ...ning server thus expanding its capacity v Use the hot remove feature to remove a controller from a running server v Use the hot replace feature to replace a controller with an identical controller Not...

Page 28: ...Wide Web on page 141 for additional information Note Be sure to read the instructions and restrictions for this software program Using NetWare with Active PCI features To use Active PCI with NetWare...

Page 29: ...the controller Choose a slot that is farthest from other installed components such as the microprocessor If necessary see your server documentation for more detailed information about the expansion sl...

Page 30: ...rnal devices only go to step 13 on page 15 Otherwise go to step 10 10 Connect one end of a 68 pin standard cable separately purchased or already in your server to the internal channel connector on the...

Page 31: ...ise go to Chapter 3 Understanding RAID technology on page 21 Connecting external devices to a ServeRAID 4 controller Note You cannot attach internal and external SCSI devices to the same channel For e...

Page 32: ...r You need to determine the following v The PCI expansion slot into which you will install the controller v Whether you need to install the low profile 2 U bracket Complete the following steps to inst...

Page 33: ...ion you might need a small flat blade screwdriver and the documentation that comes with your server Complete the following steps to install the ServeRAID 5i controller 1 Review Safety on page iii and...

Page 34: ...oller before installing the ServeRAID 5i controller 4 Remove the expansion slot cover if applicable 5 Touch the static protective package containing the controller to an unpainted metal expansion slot...

Page 35: ...ng on your server 9 If you have physical drives to install install them now See your server documentation for drive installation instructions 10 Install the server cover 11 Reconnect the cables and co...

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Page 37: ...sponses to multiple requests enables disk arrays to provide a high level of performance in network environments Note If you already understand these concepts go to Chapter 4 Configuring ServeRAID cont...

Page 38: ...number of drives RAID level 0 No 100 Superior Superior No 1 16 RAID level 1 Yes 50 Very high Very high No 2 2 RAID level 1E Yes 50 Very high Very high No 3 16 RAID level 5 Yes 67 to 94 Superior High N...

Page 39: ...al drive Start with two physical drives Create an array using the two physical drives Then create a logical drive within that array The data is striped across the drives creating blocks Notice that th...

Page 40: ...torage capacity because no room is taken for redundant data or data parity storage No data redundancy resulting in data loss in the event that a physical drive fails Understanding RAID level 1 RAID le...

Page 41: ...RAID level 1 Enhanced RAID level 1E combines mirroring and data striping This RAID level stripes data and copies of the data across all of the drives in the array As with the standard RAID level 1 th...

Page 42: ...wing advantages and disadvantages Advantages Disadvantages v 100 data redundancy v High performance Allows only 50 of the physical drive storage capacity to be used Understanding RAID level 5 RAID lev...

Page 43: ...Notice that the storage of the data parity denoted by also is striped and it shifts from drive to drive A parity block contains a representation of the data from the other blocks in the same stripe F...

Page 44: ...m and writing to three physical drives and an idle hot spare Therefore RAID level 5E provides a higher level of performance than RAID level 5 The spare drive is actually part of the RAID level 5E arra...

Page 45: ...the logical drive decompresses and returns to the original striping scheme 9 3 5 7 1 2 6 8 4 If you use a RAID level 5E logical drive in a failover or cluster configuration the RAID level 5E logical d...

Page 46: ...so are larger logical drives increased performance and increased reliability RAID level 0 level 1E level 5 and level 5E cannot use more than 16 physical drives in an array however RAID level 1E0 and l...

Page 47: ...able A A B C 1 2 3 4 5 7 6 8 1 2 3 4 5 7 6 8 1 2 3 4 5 7 6 8 1 2 3 4 5 7 6 8 1 2 3 4 5 7 6 8 1 2 3 4 5 7 6 8 A 1 2 3 5 4 7 10 8 11 6 9 12 RAID level Sub logical drive Spanned array logical drive 00 RA...

Page 48: ...he rebuild state Logical drive state descriptions The following table provides descriptions of the valid logical drive states Drive state Meaning Blocked The blocked state is reserved for RAID level 0...

Page 49: ...space or a RAID level 5E compression or decompression Offline The logical drive is offline and not accessible This state occurs when one of the following is true v One or more physical drives in a RA...

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Page 51: ...you must have the latest BIOS and firmware code installed on your server Complete the following steps to update the levels of BIOS and firmware code 1 Insert the IBM ServeRAID Support CD into the ser...

Page 52: ...instructions in the Installation Guide provided with your server Important If you intend to use your ServeRAID 4 controllers in a Microsoft Windows failover or clustering environment do the following...

Page 53: ...llowing v Creates arrays by grouping together same sized physical drives v Creates one logical drive per array v Assigns a RAID level based on the number of physical drives in an array An array with a...

Page 54: ...6 for each controller 7 When you have completed configuring your controllers you can change certain controller settings See Fine tuning your configuration on page 43 for more information If you do not...

Page 55: ...ives you want to move to the array 5 Click Add selected drives to add the drives to the array You can click Add all drives to move all ready drives to an array 6 Repeat steps 4 and 5 for each addition...

Page 56: ...RAID level 5E v If you want to use the logical drive migration feature In these cases one logical drive slot must be left free therefore you cannot define more than seven logical drives b Some operati...

Page 57: ...ray 13 Repeat steps 8 on page 40 through 12 for each additional array you want to configure 14 Click Next The Configuration summary window opens Figure 14 Adding another logical drive window Figure 15...

Page 58: ...controller you must install the device driver while installing the operating system Creating spanned arrays If you want to assign RAID level x0 to an array you must create a spanned array For more in...

Page 59: ...re data on the controller you will need to determine the correct stripe unit size for your configuration and set the write cache mode if necessary Changing the stripe unit size The new controller stri...

Page 60: ...x from the startable Novell NetWare 5 x CD set the write cache mode to write through for the logical drive to which you will install the operating system To accomplish this complete the following ste...

Page 61: ...tions Getting assistance For more information about ServeRAID Manager see the online help system To start the help system either click Information about this window on the toolbar or select an item fr...

Page 62: ...D Manager tree objects and the actions that apply to them select a tree object and click Actions Hints and tips ServeRAID Assist will start and information about the tree object will appear in the rig...

Page 63: ...Figure 19 Hints and tips feature Chapter 4 Configuring ServeRAID controllers 47...

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Page 65: ...ntroller only v Microsoft Windows NT 4 0 Enterprise Edition and Server v Novell NetWare versions 5 x and 6 0 v IBM OS 2 WARP Server for e business v Red Hat Linux versions 6 2 7 0 7 1 7 2 and 7 3 v Su...

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Page 67: ...v Two ServeRAID 4Lx v Two ServeRAID 3HB v Two ServeRAID 3H v Two ServeRAID 3L v Two ServeRAID II Note If your system has a built in ServeRAID controller on the system board you cannot use the built i...

Page 68: ...AID adapter defined as a Microsoft Cluster Server MSCS resource cannot coexist in the same server v A logical drive cannot failover if it is any of the following A RAID level 5 or level 5E logical dri...

Page 69: ...o factory default settings only once when the controller is first installed This process removes all configuration information from NVRAM including the SCSI initiator IDs the controller and partner na...

Page 70: ...that you will use to identify the passive controller for example Controller B Initiator IDs The system presets these SCSI initiator IDs to 7 Set each ID to 6 for shared channels The ServeRAID Manager...

Page 71: ...uring ServeRAID arrays and logical drives Complete the following steps to configure arrays and logical drives on the active controller 1 On the toolbar click Configure RAID The Configuration wizard op...

Page 72: ...al array that you want to configure Notes a You must use all the ready drives when creating your arrays that is all ready drives in the ServeRAID Manager tree must be online b Hot spare drives are not...

Page 73: ...nd by system BIOS during startup will be your startup boot drive Attention Before assigning a logical drive RAID level 5E consider the following If a physical drive fails during a post failover resync...

Page 74: ...rives 15 Click Continue to return to ServeRAID Manager After creating the arrays and logical drives you must assign merge group numbers to the shared logical drives 16 In the ServeRAID Manager tree cl...

Page 75: ...ter 3 Understanding RAID technology on page 21 Note In a failover environment spanned arrays are supported only by IBM ServeRAID 4 Ultra160 SCSI controllers Complete the following steps to create one...

Page 76: ...b 4 Click Next the Create logical drives window opens Continue with step 9 of Configuring ServeRAID arrays and logical drives on page 55 Installing the device driver Complete the following steps to fi...

Page 77: ...M Installation Guide that came with the controller Configuring the passive controller Complete the following steps to configure the passive controller for failover 1 Start the server Note The cables t...

Page 78: ...t you to select numbers other than 6 and 7 Notes a The controller name and partner name are case sensitive b If your configuration will contain multiple ServeRAID controller pairs each controller name...

Page 79: ...onment installation To verify that the configuration is correct install and start the ServeRAID Manager program on the Windows 2000 or Windows NT 4 0 server For more information see Chapter 10 Install...

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Page 81: ...Part 2 Utility programs Copyright IBM Corp 2002 65...

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Page 83: ...able from the main menu v View Controller Status shows the current status of the ServeRAID controller See Viewing the controller status for more information v View Configuration shows the current conf...

Page 84: ...tialize the configuration the Config Updates resets to 0 v Bad Stripe Locked Stripe or Blocked Drive identifies the logical drives that are affected Bad Stripe Drives indicates logical drives that hav...

Page 85: ...s is used to modify the following BIOS settings for the ServeRAID controller BIOS support for startable CDROM BIOS support for INT13 extensions BIOS support for reading partition tables Bypass read ve...

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Page 87: ...Linux versions 7 1 7 2 and 7 3 v Caldera OpenLinux versions 3 1 and 3 1 1 v Turbolinux versions 6 5 and 7 0 v SCO OpenServer 5 0 6a v Caldera UnixWare 7 1 1 v Caldera Open UNIX 8 0 Note To run IPSSEN...

Page 88: ...tte drive 3 Create an IPSADM directory on your hard disk From the operating system command prompt type the following and press Enter md c ipsadm where c is the drive letter of the drive where the oper...

Page 89: ...kette drive that contains the IBM ServeRAID Support for NetWare diskette c is the drive letter of the drive where NetWare is installed and nwserver is the directory where NetWare is installed 5 Remove...

Page 90: ...propriate IBM ServeRAID Support diskette into the diskette drive 3 Mount the diskette drive From the console type the following and press Enter mount t msdos dev diskettedevicefile mountpoint where di...

Page 91: ...ng the IBM ServeRAID Support for SCO OpenServer diskette 1 Start the server 2 After the operating system starts insert the IBM ServeRAID Support for SCO OpenServer diskette into the diskette drive 3 M...

Page 92: ...he following and press Enter chmod 700 usr bin ipssend 6 Unmount the CD ROM drive Type the following and press Enter umount mnt 7 Remove the CD from the CD ROM drive Installing IPSSEND for UnixWare or...

Page 93: ...SEND from DOS Complete the following steps to start IPSSEND 1 Insert the IBM ServeRAID Support for DOS diskette into the diskette drive 2 Restart the server 3 Type the following and press Enter a ipss...

Page 94: ...cess You can use the backup copy of data for such tasks as tape backup drive cloning and multiserver rollout There are two primary FlashCopy functions backup and nobackup The FlashCopy backup function...

Page 95: ...y That is either both drives are part of a spanned array or both drives are part of a nonspanned array v If the source and target drives are part of a spanned array the following conditions must apply...

Page 96: ...arameter that overrides the user prompt Notes 1 Only one FlashCopy backup process involving up to four source and target partitions can be active on a controller at a time If a FlashCopy backup proces...

Page 97: ...3 The physical drives must be added while the server is on 4 When a logical drive is imported all partitions from that logical drive are also imported automatically You cannot import a single partitio...

Page 98: ...e the FlashCopy backup or FlashCopy nobackup functions Note 2 One or more of the following is true for this partition v The partition is the boot partition v The partition does not have an NTFS or FAT...

Page 99: ...FlashCopy nobackup link involving up to four source and target partitions can exist on a ServeRAID controller If a FlashCopy nobackup function is invoked you cannot issue another FlashCopy nobackup or...

Page 100: ...r logical drive the target Note The size of the target logical drive must be greater than or equal to the size of the source logical drive IPSSEND COPYLD controller source target NOPROMPT where v cont...

Page 101: ...cent rebuild synchronization logical drive migration or FlashCopy The information includes the type of operation status logical drive number logical drive size and percentage of the operation complete...

Page 102: ...8 Supported operating systems Windows NetWare OS 2 Linux OpenServer UnixWare Open UNIX and DOS Problem isolation and debug functions The following table describes the IPSSEND problem isolation and deb...

Page 103: ...ersion This function lists the versions of BIOS cluster DLL device driver and firmware for every ServeRAID controller in the server IPSSEND GETVERSION Supported operating systems Windows NetWare OS 2...

Page 104: ...r the logical drive 0 1 1E 5 or 5E v If NEWARRAY channel is the channel number for the device 1 4 and sid is the SCSI ID for the device 0 15 The maximum number of repetitions of channel sid is 16 v NO...

Page 105: ...tes that the controller will determine the best mode to use at any given time Supported operating system DOS scandrives This function scans all SCSI channel on a controller for the following v Physica...

Page 106: ...termines how the BIOS handles failures during system startup IPSSEND UNATTENDED controller ON OFF where v controller is the ServeRAID controller number 1 12 v ON enables the feature v OFF disables the...

Page 107: ...l the IPSMON program for NetWare 1 Start the server 2 From the console prompt type the following and press Enter down 3 Insert IBM ServeRAID Support for Novell NetWare diskette into the diskette drive...

Page 108: ...s after the alert code A followed by the controller number C followed by the channel number if required SID followed by the SCSI ID if required For example a message of CRTxxx A2C3SID04 signifies that...

Page 109: ...Windows Me Windows 98 or Windows 95 on page 94 Windows 2000 Installing ServeRAID Manager on Windows XP Windows 2000 Windows NT 4 0 Windows Me Windows 98 or Windows 95 on page 94 Windows NT 4 0 Install...

Page 110: ...hot replace feature This feature also requires that you install the DMI Service provider and the IBM Hot Plug for Windows NT 4 0 Package version 4 2 or later For more information see Using a ServeRAI...

Page 111: ...rt CD into the CD ROM drive 2 If your CD ROM drive automounts type the following command and go to step 6 Otherwise go to step 3 rpm install mnt cdrom linux manager RaidMan 5 10 i386 rpm 3 If your CD...

Page 112: ...t are saved and used in the upgrade To remove the ServeRAID Manager program from OpenServer type the following command pkgrm RaidMan Complete the following steps to install the ServeRAID Manager progr...

Page 113: ...llowing and press Enter mount r F cdfs dev cdrom cdromdevicefile mnt where cdromdevicefile is the specific device file for the CD ROM block device Look in the dev cdrom directory to determine what cdr...

Page 114: ...eRAID Manager program from the OS 2 desktop double click the ServeRAID Manager icon Complete the following steps to start the ServeRAID Manager program from an OS 2 command line 1 Change to the direct...

Page 115: ...RaidMan For UnixWare and Open UNIX cd opt RaidMan For Linux cd usr RaidMan 2 Press Enter 3 Type the following and press Enter sh RaidMan sh 4 The ServeRAID Manager program opens and a window similar...

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Page 117: ...Part 3 Installing the IBM ServeRAID Cluster Solution Copyright IBM Corp 2002 101...

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Page 119: ...cluster resumes normal operation A controller is a device that coordinates and controls the operation of one or more input and output devices such as workstations and synchronizes the operation of su...

Page 120: ...A CD ROM Drive CD ROM Drive Integrated Ethernet Controller SCSI IDs See Note A See Note B 6 4 3 Channel 2 Channel 1 Channel 1 ServeRAID EtherJet Server B 233 MHz RAID 1 Array A Integrated Ethernet Co...

Page 121: ...t requirements and types of installations see the IBM Shared Disk Clustering Hardware Reference You can obtain this publication from the IBM Support Web site See Chapter 16 Obtaining ServeRAID updates...

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Page 123: ...one server and then shuts down the other server for scheduled maintenance Failover generally includes three tasks v Failure detection v Resource relocation v Application restart Failback is a special...

Page 124: ...name on both ServeRAID controllers in a pair at the same time Doing so can cause problems and might require that you restart the server v You cannot share hot spare drives between controllers in a cl...

Page 125: ...rum drive You must configure the quorum drive as a RAID level 1 logical drive Note Define hot spare drives in your array to minimize the time that logical drives remain in critical state v If a failov...

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Page 127: ...rs you might want to use View shared drives to identify online drives in Server B as reserved a From Server A right click the controller and select View shared drives b Select the Enable view shared d...

Page 128: ...ID controller that you want to configure Attention Restore the ServeRAID controller to factory default settings only once when the controller is first installed This process removes all configuration...

Page 129: ...ared channels For Server B ensure that each SCSI initiator ID is set to 7 for shared channels The ServeRAID Manager program does not permit you to select numbers other than 6 and 7 Notes a The control...

Page 130: ...nager tree click the ServeRAID controller that you want to configure 3 Click Custom configuration 4 Click Next The Create arrays window opens 5 Click the appropriate Array tab in the right panel then...

Page 131: ...defined hot spare drives in case a failover occurs after a hot spare drive replaces a failed shared drive d You must create at least one logical drive to store the quorum resource information This lo...

Page 132: ...niquely identifies each shared logical drive even when the logical drive moves between servers 13 In the ServeRAID Manager tree click the ServeRAID controller that contains the logical drives Notes a...

Page 133: ...guration if the ServeRAID controller fails Note You can save this information to a file by using the ServeRAID Manager program a In the ServeRAID Manager tree click the server b Click Actions Save pri...

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Page 135: ...luster Server software on Windows NT 4 0 Important Before beginning the procedure ensure that you are using the IBM ServeRAID Support for Windows NT 4 0 diskette during the installation of the Microso...

Page 136: ...ROM drive letter Running the IPSHAHTO program makes all the shared logical drives available for access by Server A 4 Using the Windows NT Disk Administrator format all shared logical drives as NTFS N...

Page 137: ...and path where the MSCS software is installed must be the same on both servers a Insert the Windows NT Server Enterprise Edition Component CD into the CD ROM drive on Server B Type the following comm...

Page 138: ...r nodes Note If you installed a Windows NT 4 0 Service Pack previously you must reinstall it now You now can move the shared disk resources manually using the Microsoft Cluster Administrator program o...

Page 139: ...r 2 To create the ServeRAID disk resource in an existing group ensure that the cluster server that owns the shared logical drive is the owner of that group If the cluster server is not the owner of th...

Page 140: ...you must perform the following procedure on all servers in your cluster 1 Select one of the cluster servers from which to uninstall MSCS 2 Click Start Settings Control Panel The Windows NT Control Pa...

Page 141: ...ol Panel The Windows NT Control Panel window opens 3 Double click SCSI Adapters 4 Click the Drivers tab 5 Click Add 6 Click Have Disk 7 For the path type the following e winnt driver nt4_0 where e is...

Page 142: ...re consider the following v Ensure that you use the IBM ServeRAID Support for Windows 2000 Server diskette during the installation of Windows 2000 Advanced Server Edition or Windows 2000 Datacenter Se...

Page 143: ...s 6 To assign disk signatures for the shared disks click Next 7 Microsoft Cluster Server using Windows 2000 requires you to set shared logical drives to Basic Disk To do this click Cancel in the Upgra...

Page 144: ...drive on Server A Notes a Use the disk volume label as a guide to make sure you assign the same drive letters on Server B as you assigned on Server A b You might need to press the F5 key multiple tim...

Page 145: ...gram copies some files and launches the Windows Component Wizard 17 In the Windows Component Wizard select the check box to install the Cluster Service component then click Next 18 When prompted inser...

Page 146: ...then click Manage The Computer Management window opens b Double click Storage c Click Disk Management The Write Signature and Upgrade Disk Wizard opens d Right click Disk Management Rescan Disks e On...

Page 147: ...dministration system 2 Use the normal MSCS procedure for deleting a resource or a group For instructions see the documentation that is included with the MSCS package 3 After deleting the ServeRAID res...

Page 148: ...s a When Windows 2000 restarts the first time the Windows 2000 Setup window opens b Press F6 promptly You have only a few seconds to press this key c Select the IBM ServeRAID 4M 4Mx 4L 4Lx Windows 200...

Page 149: ...you might not be able to access the ServeRAID logical drives shared by the two nodes of the cluster If this occurs do one of the following v Delete the logical drives and restart the server v Set the...

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Page 151: ...the ServeRAID Manager program on page 93 Checking the ownership of a physical drive A physical drive that is owned and configured on Server B will appear in the ready or defunct state on Server A Comp...

Page 152: ...o the other controller in the pair Be sure to verify this status when you add drives after the servers are started Before creating logical drives restart both servers or scan for new drives using the...

Page 153: ...u must have the ServeRAID Manager program installed and running on all servers in the cluster for this feature to work Complete the following steps to validate a cluster 1 In the ServeRAID Manager tre...

Page 154: ...found 6 To view the problem report events in an easy to read window double click an event in the Problems found message field 7 To save the contents of the Problems found message field click Save A Sa...

Page 155: ...Part 4 Maintenance and troubleshooting Copyright IBM Corp 2002 139...

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Page 157: ...t 2 In the Search field at the top of the page type ServeRAID then press Enter Updating the ServeRAID BIOS firmware and software code for clustering Use the following CD and diskettes v IBM ServeRAID...

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Page 159: ...xisting ServeRAID controller in a fully functioning system Updating device drivers BIOS and firmware code and utility programs Complete the following steps to upgrade the device driver BIOS and firmwa...

Page 160: ...ally starts If the BIOS and firmware code do not require updating the wizard automatically stops and the ServeRAID Manager starts Go to step 7 If necessary update the BIOS and firmware code for the ne...

Page 161: ...mation about clearing the event log see eraseevent on page 86 All physical drives contain unique identifiers such as the drive serial number and manufacturer During configuration the ServeRAID control...

Page 162: ...ded mode is acceptable The ServeRAID controller will assign the drive a state of defunct but the server can complete startup However the array will remain in the critical state and the potential for d...

Page 163: ...er are connected properly 2 The hot swap drive trays are seated properly in the drive bay 3 If multiple drives fail in separate arrays one physical drive per array replace each of the defunct physical...

Page 164: ...ts previously assigned location or after you install the original physical drives back in the server F5 Change the configuration and set the drive to defunct Press this key to accept the new state tha...

Page 165: ...OM 1 Press Ctrl I to access the ServeRAID Mini Configuration menu See Chapter 7 Using the ServeRAID Mini Configuration program on page 67 for more information 2 Select Advanced Functions from the main...

Page 166: ...the interrupt status port register ISPR code the basic configuration status BCS register code and the extended configuration status ECS register code If no errors occur during POST the following regi...

Page 167: ...epresentative 8xxx to Bxxx The POST detected an error with the SCSI interface Verify that the SCSI cables are correctly connected and the SCSI termination is set properly for each installed SCSI devic...

Page 168: ...count for the drive rearrangement To exit without making changes press F10 01 18 No configuration was found in drives or the online rebuild and hot spare standby hot spare drives are not responding 01...

Page 169: ...hot spare and ready standby drives are not responding 03 C8 A drive was imported from another server and it has a valid configuration and the online rebuild drives are not responding and unidentified...

Page 170: ...incorrect SCSI ID and unidentified drives were found 07 6C Online rebuild and ready standby drives are not responding a drive was found at the incorrect SCSI ID and unidentified drives were found 07...

Page 171: ...es are not responding 0F 30 Hot spare standby hot spare and ready standby drives are not responding Recovering from problems starting the ServeRAID Manager Problem Explanation Action The ServeRAID Man...

Page 172: ...r 3 If TCP IP networking is not configured type the server name in the third column of the line that starts with 127 0 0 1 Note The following is an example of a completed line 127 0 0 1 localhost matr...

Page 173: ...ou must correct the cause of the failure or replace the physical drives then you must restore your data To prevent data integrity problems the ServeRAID controllers set the RAID level 0 logical drives...

Page 174: ...hot swap drive for instructions 5 If the hot swap rebuild fails contact your IBM service representative Rebuilding a hot swap drive A hot swap rebuild refers to a rebuild operation that is started by...

Page 175: ...edure requires a ServeRAID 3 or ServeRAID 4 controller with BIOS and firmware at version 4 x or later installed prior to the physical drive failures v Repeat this procedure for each array that contain...

Page 176: ...perating system and save the output to a text file 2 Send the logs to your IBM service representative for root cause analysis The logs provide the best evidence for determining the cause of the failur...

Page 177: ...a rebuild operation from starting 4 Set each defunct physical drive in the failed array to the online state The failed logical drives should change to a critical state If there are problems bringing p...

Page 178: ...e ServeRAID logs to your IBM service representative 9 If IBM determines that the ServeRAID controller and SCSI bus activities are not operating properly your IBM service representative will provide an...

Page 179: ...n on the backplane and retest to see if the results change If the problem persists swap out the SCSI cable and run a media test again on the physical drives If the physical drives pass the test the pr...

Page 180: ...cedures to recover from problems in a failover environment If you still have problems after following these procedures contact your IBM service representative for further information Also you can find...

Page 181: ...n both ServeRAID controllers to the enclosure For example if you connect the cable from Channel 1 on the first ServeRAID controller to the enclosure you must connect the cable from Channel 1 on the se...

Page 182: ...er controller Complete the following steps to recover from a power failure 1 Run ipssend merge for every merge group number configured on the active controller Note If ipssend merge fails run ipssend...

Page 183: ...ocumentation that comes with your server If you are replacing the failed server with an identical server install each physical drive in the same bay as the one it was removed from in the failed server...

Page 184: ...uration information see Obtaining the current configuration information for information that might help you to assign the proper values Obtaining the current configuration information To obtain the SC...

Page 185: ...apter 16 Obtaining ServeRAID updates on page 141 for additional information 6 Start the system with the IBM ServeRAID Support CD version 4 0 or later in the CD ROM drive The ServeRAID Manager program...

Page 186: ...is if the merge group number is 206 the SCSI initiator ID is 6 21 Remove the IBM ServeRAID Support CD from the CD ROM drive 22 Restart your server Note If the controller you replaced is the startup co...

Page 187: ...en MSCS under Windows NT 4 0 was installed To correct this problem you must reinstall the high availability cluster solution using Microsoft Windows NT 2 Ensure that shared SCSI buses on the ServeRAID...

Page 188: ...mal operation v Replace and rebuild one or more defunct drives However if you do not reinitialize synchronize and restore the drive be aware that some data could be lost or damaged If one of the clust...

Page 189: ...ion has been uninstalled a message is incorrectly displayed prompting you to perform an upgrade when you attempt to reinstall the ServeRAID Windows NT Cluster Solution You must delete the C3E76E53 F84...

Page 190: ...174 IBM ServeRAID User s Reference Version 5 10...

Page 191: ...and IntelliStation systems operating systems and programs come with information that contains troubleshooting procedures and explanations of error messages and error codes If you suspect a software p...

Page 192: ...e for a fee with usage configuration and software problems with xSeries servers IntelliStation workstations and appliances For information about which products are supported by Support Line in your co...

Page 194: ...178 IBM ServeRAID User s Reference Version 5 10...

Page 195: ...s NT and Windows 2000 winsrv img IBM ServeRAID Support for Windows 2000 Server winpro img IBM ServeRAID Support for Windows Professional Editions for Microsoft Windows XP Professional and Microsoft Wi...

Page 196: ...following and Press Enter e diskette tools dsk4wrp e diskette disketteimage a where v e is the drive letter for the CD ROM drive v disketteimage is the name of the diskette image v a is the drive let...

Page 197: ...evice file for the diskette block device 6 Press Enter 7 Unmount the CD ROM drive Type the following and press Enter umount mountpoint where mountpoint is the mointpoint of the device file used in ste...

Page 198: ...182 IBM ServeRAID User s Reference Version 5 10...

Page 199: ...nes a glossary of terms used in the Statement of Limited Warranty Frequently Asked Questions FAQ and links to Product Support Web pages The IBM Statement of Limited Warranty is available from this Web...

Page 200: ...vailable to provide the applicable level of service either on site or at an IBM service center as determined by IBM v Engineering Change management Occasionally there might be changes that are require...

Page 201: ...d regions Service centers in certain countries or regions might not be able to service all models of a particular machine type In addition some countries or regions might have fees and restrictions th...

Page 202: ...replace it with one that is at least functionally equivalent you may return it to your place of purchase and your money will be refunded Extent of Warranty The warranty does not cover the repair or ex...

Page 203: ...involve the removal of parts and their return to IBM A part that replaces a removed part will assume the warranty service status of the removed part Before IBM or your reseller exchanges a Machine or...

Page 204: ...URISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU Governing Law Both you and IBM consent to the app...

Page 205: ...arbitrators designated in conformity with those rules shall have the power to rule on their own competence and on the validity of the Agreement to submit to arbitration The arbitration award shall be...

Page 206: ...ct PEOPLE S REPUBLIC OF CHINA PRC Governing Law The following replaces this Section Both you and IBM consent to the application of the laws of the State of New York except when local law requires othe...

Page 207: ...ch the warranty service is being provided except that in 1 Albania Bosnia Herzegovina Bulgaria Croatia Hungary Former Yugoslav Republic of Macedonia Romania Slovakia Slovenia Armenia Azerbaijan Belaru...

Page 208: ...to the total amount you paid for the Machine that is the subject of the claim For purposes of this item the term Machine includes Machine Code and Licensed Internal Code Applicability of suppliers an...

Page 209: ...AZILAND Limitation of Liability The following is added to this Section IBM s entire liability to you for actual damages arising in all situations involving nonperformance by IBM in respect of the subj...

Page 210: ...194 IBM ServeRAID User s Reference Version 5 10...

Page 211: ...IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF NON INFRINGEMENT MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some jurisdictions do not allow disclaimer of express or implied war...

Page 212: ...crosystems Inc in the United States other countries or both Linux is a registered trademark of Linus Torvalds Other company product or service names may be trademarks or service marks of others Import...

Page 213: ...esidential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Properly shielded and grounded cables and connectors must...

Page 214: ...ting from a nonrecommended modification of the product including the fitting of non IBM option cards This product has been tested and found to comply with the limits for Class A Information Technology...

Page 215: ...y which a RAID level 5E logical drive utilizes the distributed spare drive in the event of a physical drive failure After the data is reconstructed the original array undergoes compression and the dis...

Page 216: ...nage your ServeRAID controllers It can be used to configure your controller isolate and debug problems recover from errors and to copy controller configurations from one server to another L logical dr...

Page 217: ...terweaving to distribute data across four or more physical drives it uses some space on each physical drive as a distributed hot spare It provides full data protection and performance acceleration alt...

Page 218: ...he rebuild state stripe unit size The granularity at which data is stored on one drive of the array before subsequent data is stored on the next drive of the array The performance of a ServeRAID contr...

Page 219: ...write cache mode is set to write through and the operating system sends data to the controller the controller writes the data to a storage device before sending a confirmation to the operating system...

Page 220: ...204 IBM ServeRAID User s Reference Version 5 10...

Page 221: ...19 troubleshooting 171 updating ServeRAID software 141 validating a cluster 137 verifying the cluster configuration 111 cluster definition 103 controller device drivers and startup boot controller 38...

Page 222: ...els 22 IPSMON 91 installing 91 log file 92 messages 92 starting 91 IPSSEND xiii commands autosync 84 backup 84 certify 86 copyId 84 create 88 delete 88 IPSSEND continued commands continued drivever 88...

Page 223: ...defunct state 32 descriptions of states 32 hot spare state 32 online state 32 ready state 32 rebuilding a defunct frive 157 physical drive continued rebuilding state 32 recovering from defunct drives...

Page 224: ...definition 21 factory default setting 43 performance tuning 21 stripe definition 21 SuSE Linux IPSSEND installing 73 IPSSEND starting 77 ServeRAID Manager installing 95 ServeRAID Manager starting 99...

Page 225: ......

Page 226: ...Part Number 33P2636 Printed in U S A SC33 P263 60 1P P N 33P2636...

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