IBM TotalStorage™ Enterprise Storage Server™ Host Systems Attachment Guide 2105 Models E10, E20, F10, and F20 SC26-7296-05
IBM TotalStorage™ Enterprise Storage Server™ Host Systems Attachment Guide 2105 Models E10, E20, F10, and F20 SC26-7296-05
Note: Before using this information and the product it supports, read the information in “Safety and environmental notices” on page xiii and “Notices” on page 179. Sixth Edition (November 2001) This edition replaces SC26-7296-04. © Copyright International Business Machines Corporation 1999, 2001. All rights reserved. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
Contents Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi Safety and environmental notices . . . . . . . . . . . . . . . . . xiii Product recycling . . . . . . . . . . . . . . . . . . . . . . . . xiii Disposing of products . . . . . . . . . . . . . . . . . . . . . . xiii | About this guide . . . . . . . . . . . . . . . . . . . . . . . . xv Who should use this guide. . . . . . . . . . . . . . . . . . . . .
| | | | | | | | | | | | | | | | | | | | | | | Installing and configuring the Compaq Tru64 UNIX Version 4.0x host Installing and Configuring Compaq Tru64 UNIX Version 5.x . . . Attachment considerations. . . . . . . . . . . . . . . . Installing the KZPBA-CB adapter card . . . . . . . . . . . Adding or modifying AlphaServer connections . . . . . . . . Configuring host adapter ports . . . . . . . . . . . . . . Adding and assigning volumes . . . . . . . . . . . . . . Confirming storage connectivity . . . . . .
Installing the IOC-0210-54 adapter card. . . . . . . . . . . . . . . 56 Configuring the IOC-0210-54 adapter card . . . . . . . . . . . . . . 56 | | | | | | | | Chapter 6. Attaching to an IBM RS/6000 or IBM eServer pSeries host . . . Attaching with SCSI adapters . . . . . . . . . . . . . . . . . . . Attachment requirements . . . . . . . . . . . . . . . . . . . . Installing the 2105 host attachment package . . . . . . . . . . . . . Verifying the ESS configuration . . . . . . . . . . . . . . . . . .
Number of disk devices on Linux . . . . Configuration of ESS storage under Linux . Partitioning ESS disks . . . . . . . Creating and using file systems on ESS | | | | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 87 87 88 Chapter 9. Attaching to a Novell NetWare host . . . . . . Attaching with SCSI adapters . . . . . . . . . . . . . Attachment requirements . . . . . . . . . . . . . . Installing and configuring the Adaptec adapter card . . . .
| | | | | | Configuring for availability and recoverability . . . Setting the TimeOutValue registry . . . . . . . Verifying the host system is configured for storage . Performing a FlashCopy from one volume to another . . . . . . . . . volume . . . . . . . . . . . . . . . . . . . . 133 134 134 134 Chapter 12. Attaching to a Windows 2000 host . . . . . . . . . . . Attaching with SCSI adapters . . . . . . . . . . . . . . . . . . . Attachment requirements. . . . . . . . . . . . . . . . . . . .
Appendix C. Migrating from the IBM SAN Data Gateway to fibre-channel attachment . . . . . . . . . . . . . . . . . . . . . . . . . 169 Overview of the IBM SAN Data Gateway . . . . . . . . . . . . . . . 169 Migrating volumes from the SAN Data Gateway to native fibre-channel. . . . 170 Statement of Limited Warranty . . . . . . Part 1 – General Terms . . . . . . . . . The IBM Warranty for Machines . . . . . Extent of Warranty . . . . . . . . . . Items Not Covered by Warranty . . . . . Warranty Service. . . . .
Figures | | | | | | | | | | | | | | | | | | | | | | | | 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. ESS Models E10, E20, F10, and F20 base enclosure; front and rear views . . . . . . . . . ESS Expansion enclosure, front and rear views . . . . . . . . . . . . . . . . . . . ESS host interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . .
46. 47. 48. 49. 50. 51. 52. 53. 54. | 55. | 56. | 57. 58. 59. 60. 61. 62. 63. 64. 65. 66. 67. 68. 69. 70. | | | | | x Example of range of devices for a Linux host . . . . . . . . . . . . . . . . . . . Example of different options for the fdisk utility . . . . . . . . . . . . . . . . . . . Example of primary partition on the disk /dev/sdb . . . . . . . . . . . . . . . . . . Example of assignment of Linux system ID to the partition . . . . . . . . . . . . . .
Tables 1. 2. 3. 4. 5. 6. | 7. | 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. | 24. | | 25. | 26. 27. Publications in the ESS library . . . . . . . . . . . . . . . . . . . . . . . . . . xvi Other IBM publications related to the ESS. . . . . . . . . . . . . . . . . . . . . . xviii Other IBM publications without order numbers . . . . . . . . . . . . . . . . . . . . xxi ESS Web sites and descriptions . . . . . . . . . . . . . . . . . . . . . . . . .
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Safety and environmental notices This section contains information about: v Safety notices that are used in this guide v Environmental guidelines for this product To find the translated text for a danger or caution notice: 1. Look for the identification number at the end of each danger notice or each caution notice. In the following examples, look for the numbers 1000 and 1001. DANGER A danger notice indicates the presence of a hazard that has the potential of causing death or serious personal injury.
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About this guide This guide provides information about: v Attaching the IBM Enterprise Storage Server (ESS) to an open-systems host with Small Computer System Interface (SCSI) adapters v Attaching the ESS to an open-systems host with fibre-channel adapters v Connecting IBM Enterprise Systems Connection (ESCON®) cables to your IBM S/390® and IBM ERserver zSeries (zSeries) host systems v Connecting IBM Enterprise Systems Fibre Connection (FICON®) cables to your S/390 and zSeries host systems | | You can at
Each chapter describes how to attach an ESS to open-system hosts with SCSI adapters or fibre-channel adapters.
Table 1. Publications in the ESS library (continued) Long title (short title) Description Order number IBM TotalStorage Enterprise Storage Server DFSMS Software Support Reference (ESS DFSMS Software Support) SC26-7440 This book gives an overview of the ESS and highlights its unique capabilities. It also describes Data Facility Storage Management Subsystems (DFSMS) software support for the ESS, including support for large volumes.
| | | | | | The IBM publications center offers customized search functions to help you find the publications that you need. A number of publications are available for you to view or download free of charge. You can also order publications. The publications center displays prices in your local currency. You can access the IBM publications center through the following Web site: www.ibm.
Table 2. Other IBM publications related to the ESS. (continued) Order number Title Description ESS Solutions for Open Systems Storage Compaq AlphaServer, HP, and Sun This book helps you to install, tailor, and configure the ESS when you attach Compaq AlphaServer (running Tru64 UNIX), HP, and Sun hosts. This book does not cover Compaq AlphaServer running the Open VMS operating system. This book also focuses on the settings required to give optimal performance and on device driver levels.
Table 2. Other IBM publications related to the ESS. (continued) | | | | Title Description IBM SAN Fibre Channel Switch, 2109 Model S08 Users Guide The IBM Fibre Channel Switch 2109 Model S08 Users Guide manual describes the switch and the IBM StorWatch Specialist. It provides information on the commands and how to manage the switch with Telnet and Simple Network Management Protocol (SNMP). | To get a copy of this manual, see the Web site at: | www.ibm.
Table 2. Other IBM publications related to the ESS. (continued) Order number Title Description NUMA-Q ESS Integration Release Notes for NUMA Systems This publication provides information about special procedures and limitations involved in running ESS with Copy Services on an IBM Eserver xSeries 430 and an IBM NUMA-Q® host system. Part number 1003-80094.
Web sites Table 4 shows Web sites that have information about the ESS and other IBM storage products. Table 4. ESS Web sites and descriptions Web site Description www.storage.ibm.com/ This Web site has general information about IBM storage products. www.storage.ibm.com/hardsoft/products/ess/ess.htm This Web site has information about the IBM Enterprise Storage Server (ESS). ssddom02.storage.ibm.com/disk/ess/documentation.html This Web site allows you to view and print the ESS publications. www.
Fill out the Readers’ Comments form (RCF) at the back of this book. Return it by mail or fax (1-800-426-6209) or give it to an IBM representative. If the RCF has been removed, you may address your comments to: International Business Machines Corporation RCF Processing Department G26/050 5600 Cottle Road San Jose, CA 95193-0001 U.S.A.
xxiv ESS Host Systems Attachment Guide
Chapter 1. Introduction This chapter describes the: v Matrix of where to find information quickly for SCSI, fibre-channel, Enterprise Systems Connection (ESCON), and FICON attachment.
Overview of the IBM TotalStorage Enterprise Storage Server (ESS) The ESS is a part of the Seascape® family of storage servers. The ESS provides integrated caching and support for redundant arrays of independent disks (RAID) for the disk drive modules (DDMs). The DDMs are attached through a serial storage architecture (SSA) interface. The minimum configuration for all ESS models is 16 DDMs. ESS Models E10 and F10 support a maximum of 64 DDMs.
Front view Rear view Figure 2. ESS Expansion enclosure, front and rear views For detailed information about the ESS, see the IBM TotalStorage ESS Introduction and Planning Guide. | | | | You get redundancy with the IBM Subsystem Device Driver (SDD). The SDD resides in the host server with the native disk-device driver for the IBM ESS. It uses redundant connections between disk storage server and host server in an ESS to provide data availability and performance.
For fibre-channel attachments, IBM recommends that you establish zones. The zones should contain a single port attached to a host adapter with the desired number of ports attached to the ESS. By establishing zones, you reduce the possibility of interactions between host adapters in switched configurations. You can establish the zones by using either of two zoning methods: v Port number v Worldwide port name (WWPN) You can configure ports that are attached to the ESS in more than one zone.
| | | | | | | | Fibre-channel adapters that are configured for SCSI-FCP (fibre-channel protocol) support: v A maximum of 128 host logins per fibre-channel port v A maximum of 512 SCSI-FCP host logins or SCSI-3 initiators per ESS v A maximum of 4096 LUNs per target (one target per host adapter), depending on host type v Port masking and LUN by target v Either fibre-channel arbitrated lop (FC-AL), fabric, or point-to-point topologies The ESS supports the following host systems for shortwave fibre-channel att
v v v v v v | OS/390® Transaction Processing Facility (TPF) Virtual Machine/Enterprise Storage Architecture (VM/ESA®) Virtual Storage Extended/Enterprise Storage Architecture (VSE/ESA™) z/OS™ z/VM™ | | For details on models and operating system versions, and releases that the ESS supports for these host systems, see the following Web site: www.storage.ibm.com/hardsoft/products/ess/supserver.
For details on models and operating system versions and releases that the ESS supports for these host systems, see the following Web site: www.storage.ibm.com/hardsoft/products/ess/supserver.htm General information about attaching to an open-systems host with SCSI adapters The following section provides information about attaching an ESS to your SCSI open-systems host. For configuration limitations for the host systems, see the IBM Enterprise Storage Server Introduction and Planning Guide.
Other SCSI bus on host adapter SCSI bus T T T HA 2105 Model E10, E20, F10 and F20 SCSI host SCSI host SCSI host Single controller on a bus Other SCSI bus on host adapter Other SCSI bus on host adapter SCSI bus T T T HA 2105 Model E10, E20, F10 and F20 SCSI host SCSI host Two controllers on a bus T=SCSI Terminator HA=host adapter T HA 2105 Model E10, E20, F10 and F20 VS08043N Figure 3.
v When you attach a device to the end of your SCSI bus, you must terminate it. If you attach a device in the middle of a SCSI bus, you must not terminate it. v Each SCSI bus requires at least one initiator. The SCSI specification requires initiators to provide TERMPWR to the SCSI bus. Cable lengths The ESS requires a total SCSI bus length that is no greater than 25 m (75 ft). The resulting configuration must meet any cable length limitations that are required by any attached SCSI device.
ESS SCSI cable First host SCSI cable Second host Figure 4. Connecting the ESS to two host systems Handling electrostatic discharge-sensitive components The IBM service support representative must observe the following precautions when handling disk drive modules and other parts to avoid causing damage from electrostatic discharge (ESD): 1. Keep the ESD-sensitive part in its original shipping container until you install the part in the machine. 2.
LUN affinity For SCSI attachment, logical unit numbers (LUNs) have an affinity to SCSI ports, independent of which hosts might be attached to the ports. If you attach multiple hosts to a single SCSI port, each host has the exact same access to all the LUNs available on that port. Targets and LUNs For SCSI attachment, each SCSI bus can attach a combined total of 16 initiators and targets. Because at least one of these attachments must be a host initiator, that leaves a maximum of 15 that can be targets.
Table 6. Host system limitations (continued) Host System LUN assignments and limitations per target Configuration notes Data General 0-7 None Hewlett Packard 9000 0-7 None 0-7 The target SCSI ID is always 6. Sixteen LUNs are supported for each feature code 6501. For ESS, the two ports on the feature code 6501 each support 8 drives at full capacity for RAID. Real 9337s running RAID-5 must account for parity. Therefore, the 8 drives provide the equivalent of a 7-drive capacity. IBM AS/400.
are used to interconnect the fibre-channel ports. For information about the ESS three basic topologies you can use with the ESS, see “Fibre-channel architecture”. Fibre-channel architecture The ESS provides a fibre-channel connection when your IBM SSR installs a fibre-channel adapter card (shortwave or longwave) in the ESS. For more information about hosts and operating systems that the ESS supports on the fibre-channel adapters, see the ESS Web site: www.storage.ibm.com/hardsoft/products/ess/supserver.
The ESS supports increased connectivity with the use of fibre-channel (SCSI-FCP and FICON) directors. Specific details on status, availability, and configuration options for the fibre-channel directors supported by the ESS are available on the Web at: www.storage.ibm.com/hardsoft/products/ess/supserver.htm The ESS supports the switched-fabric topology with point-to-point protocol. You should configure the ESS fibre-channel adapter to operate in point-to-point mode when you connect it to a fabric topology.
2 1 2 1 S008943N Legend 1 is the host system. 2 is the ESS. Figure 7. Arbitrated loop topology Note: If you have not configured the port, only the topologies for point-to-point and arbitrated loop are supported. If you have configured the port, and you want to change the topology, you must first unconfigure the port. After you unconfigure the port, you can change the topology.
in the fibre-channel host supports the SCSI command Report LUNs, you can configure all 4096 LUNs on the ESS to be accessible by that host. Otherwise, you can configure no more than 256 of the LUNs in the ESS to be accessible by that host. FlashCopy and PPRC restrictions for open-systems hosts When you copy a source volume to a target volume with FlashCopy or PPRC and you require concurrent read/write access of both volumes, the source and target volumes should be on different host systems.
The access-restricted mode prevents all fibre-channel-attached host systems that do not have an access profile from accessing any volumes that you have defined in the ESS. This is the default mode. Your IBM service support representative (SSR) can change the logical unit number (LUN) access mode. However, changing the access mode is a disruptive process, and requires that you shut down and restart both clusters of the ESS.
utility. This might comprise many storage devices, including disk, tape, and optical storage. You can locate the storage utility far from the servers that use it. Think of ESCON as the first real SAN. It provides connectivity that is commonly found in SANs. However, it is restricted to ESCON hosts and devices. Fibre-channel SANs, however, provide the capability to interconnect open systems and storage in the same network as S/390 and zSeries host systems and storage.
Chapter 2. Attaching to a Compaq host This chapter describes the host system requirements and provides the procedure to attach to an ESS to a Compaq AlphaServer with SCSI adapters or fibre-channel adapters. For information about the Compaq AlphaServer models that you can attach to the ESS, see the following Web site: www.storage.ibm.com/hardsoft/products/ess/supserver.htm Attaching with SCSI adapters This section describes how to attach an ESS to a Compaq host system with SCSI adapters.
The system performs self-test diagnostics and responds with the console prompt >>>. 2. Type show device at the >>> prompt to list the devices available to the AlphaServer. The system responds with a list of controllers and disks that are connected to the system. In the description field on the right of the screen, you should see a list of all devices assigned by the ESS. Disk devices begin with the letters “dk”.
Configuring devices to mount automatically To enable an AdvFS file system to start automatically, add an entry to the /etc/fstab file that the mount command will issue during startup. Figure 8 shows an example of a modified /etc/fstab file. In Figure 8, the lines that are shown in bold type are the lines that were entered since the initial operating system installation.
| Installing the KZPBA-CB adapter card The following procedures describe how to install the KZPBA-CB adapter card. 1. Shut down the Compaq AlphaServer host system. 2. Install the KZPBA-CB host bus adapter. 3. Restart the host (non-clustered configurations) or each cluster member (clustered configurations). 4. Bring each host system to a halt condition at the console level. 5. On each AlphaServer console, execute a show config command to confirm that you installed each adapter properly.
| | | | | | | | | | | | | | | | | | | || | | | | | | | | | | | | | | | | | | P00>>>show device polling for units on isp0, slot 4, bus 0, hose0... pka.6.0.4.0 pka term on Bus ID 6 5.57 dka400.4.0.4.0 DKA400 IBM 2105F20 4.32 dka401.4.0.4.0 DKA401 IBM 2105F20 4.32 dka402.4.0.4.0 DKA402 IBM 2105F20 4.32 dka500.5.0.4.0 DKA500 IBM 2105F20 4.32 dka501.5.0.4.0 DKA501 IBM 2105F20 4.32 dka502.5.0.4.0 DKA502 IBM 2105F20 4.32 ... polling for units on isp3, slot 11, bus 0, hose0... pkd.6.0.11.0 pkd term on Bus ID 6 5.
| | | | | CCL (command control LUN) or pass-through LUN. This LUN passes commands to the ESS controller. Future versions of ESS LIC will automatically allocate this LUN. IBM recommends that the first volume on the ESS as a minimum size volume. The host should not use the volume for data storage for data storage or any other purpose. Setting up this LUN 0 will minimize difficulties during future LIC migrations. | | | Each ESS LSS will assign the first volume as LUN 0.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | || | | | | | | | | | | Figure 12 shows an example of the Korn shell script called essvol. Figure 12 shows a summary that includes information for all the ESS volumes that are attached. echo Extracting ESS volume information... for ID in ′hwmgr -view dev -cat disk | grep 2105F20 | awk '{ print $1}'′ do echo; echo ESS vol, H/W ID $ID hwmgr -get attrib -id $ID | awk '/phys_loc//dev_base//capacity//serial/' done Figure 12.
5. Edit the ddr.dbase file to include the lines shown in Figure 14 as an entry in the disks subsection.
| | | | | | | | | | | || | | | | Figure 16 shows an example of commands you can use to configure storage. # disklabel -wr /dev/rdisk/dsk6c # mkfdmn /dev/disk/dsk6c adomain # mkfset adomain afs # mkdir /fs # mount -t advfs adomain#afs /fs Figure 16. Example of how to configure storage Attaching with fibre-channel adapters | | | | | This section describes the host system requirements and provides the procedure to attach an ESS to a Compaq AlphaServer with fibre-channel adapters.
Note: Use the information on the logical configuration work sheet in the IBM Enterprise Storage Server Configuration Planner that you should have previously filled out. | | | 3. Either you or an IBM SSR configures the host system for the ESS. Use the instructions in your host system publications. | | | Attachment considerations | See Table 8 for the maximum number of adapters you can have for an AlphaServer. | Table 8.
| | | | | | | | | | | | | | | | | | | | | | || | | | | telnet xxxxx (where xxxxx is the cluster name) 2105 Enterprise Storage Server Model F20 SN 75-99999 Cluster Bay 1 OS Level 4.3.2.15 Code EC 1.3.3.27 EC Installed on: Jun 27 2001 sbld0622 SEA.rte level = 2.6.402.592 SEA.ras level = 2.6.402.592 Licensed Internal Code - Property of IBM. 2105 Licensed Internal Code (C) IBM Corporation 1997, 2001. All rights reserved.
P00>>>set mode diag Console is in diagnostic mode P00>>>wwidmgr -show adapter polling for units on kgpsa0, slot 9, bus 0, hose0... kgpsaa0.0.0.9.0 PGA0 WWN 2000-0000-c922-69bf polling for units on kgpsa1, slot 10, bus 0, hose0... kgpsab0.0.0.10.0 PGB0 WWN 2000-0000-c921-df4b item adapter WWN Cur. Topo Next Topo [ 0] kgpsab0.0.0.10.0 2000-0000-c921-df4b FABRIC FABRIC [ 1] kgpsaa0.0.0.9.0 2000-0000-c922-69bf FABRIC FABRIC [9999] All of the above.
| | host should not use the volume for data storage or any other purpose. Setting up this LUN 0 will minimize difficulties during future LIC migrations. | Confirming switch connectivity | | | | To 1. 2. 3. | | | Figure 19 shows an example of what displays when you type the switchshow command. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | confirm switch connectivity Telnet and login to the switch as an administrator.
Displaying the ESS volume | | | | | The following procedure describes how to display the information about the ESS volume. You can use this information to identify the volumes attached to an AlphaServer. 1. Type set mode diag to put the console in diagnostic mode. 2. Type wwidmgr -show wwid | Figure 20 shows an example of information about the ESS volumes that you can see at the AlphaServer console. This format is also used in the Tru64 UNIX.
| | | | | | | | 01000010:6000-1fe1-4942-4d20-0000-0000-2821-5660 Figure 23. Example of hex representation of last 5 characters of an ESS volume serial number on an AlphaServer console | | | Setting an ESS volume as a boot device | | | | | | Perform the following steps to set an ESS volume as a boot device. 1. Determine which ESS volume you want to use as a boot device for each host by decoding the serial number.
Verifying the attachment of the ESS volumes | | | | | To verify the attachment of the ESS volumes, use the hwmgr command. See Figure 25 for an example of the commands you can use to verify the attachment of the ESS volumes. # hwmgr -view dev -cat disk HWID: Device Name Mfg Model Location -----------------------------------------------------------------------------54: /dev/disk/floppy0c 3.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | # ./essvol |more Extracting ESS volume information...
SCSIDEVICE # # Values for the IBM ESS 2105 # Type = disk Name = "IBM" "2105F20" # PARAMETERS: TypeSubClass = hard_disk, raid BadBlockRecovery = disabled DynamicGeometry = true LongTimeoutRetry = enabled PwrMgmt_Capable = false TagQueueDepth = 20 ReadyTimeSeconds = 180 CMD_WriteVerify = supported InquiryLength = 255 RequestSenseLength = 255 | | | | | | | | | | | | | | | | | | | | | | | | | | | Figure 28. Example of the ddr.dbase file 6. Type ddr_config -c to compile the ddr.dbase file. 7.
# disklabel -wr /dev/rdisk/dsk6c # mkfdmn /dev/disk/dsk6c adomain # mkfset adomain afs # mkdir /fs # mount -t advfs adomain#afs /fs Figure 30. Example of how to configure storage Chapter 2.
38 ESS Host Systems Attachment Guide
Chapter 3. Attaching to a Hewlett-Packard 9000 host This chapter describes the host system requirements and provides procedures to attach an ESS to a Hewlett-Packard 9000 host with SCSI and fibre-channel adapters. Attaching with SCSI adapters This section describes the procedures to attach a Hewlett-Packard 9000 host system with SCSI adapters. For procedures about how to attach an ESS to Hewlett-Packard 9000 host with fibre-channel adapters, see “Attaching with fibre-channel adapters” on page 41.
but you have no failover protection. The maximum number of adapters supported is 16 for a total of 32 SCSI ports. For the HP-UX operating system 11.0, the IBM Subsystem Device Driver supports 64-bit mode. See the following web site for the most current information about the IBM Subsystem Device Driver: www.ibm.com/storage/support/techsup/swtechsup.
Configuring the ESS for clustering The following section describes how to configure an ESS for clustering on the HP-UX 11.00 operating systems using MC/ServiceGuard. Configuring MC/ServiceGuard on an HP-UX 11.00 with the ESS This section describes how to configure a Hewlett-Packard host system for clustering for HP-UX. The steps to configure MC/ServiceGuard with the ESS are the same as the steps in the Hewlett-Packard high availability documentation.
v See the following Web site for details about the release level for your operating system: www.storage.ibm.com/hardsoft/products/ess/supserver.htm Either you or an IBM service support representative (SSR) must perform the following tasks to install and configure an ESS. 1. An IBM SSR installs the ESS by using the procedures in the IBM Enterprise Storage Server Service Guide. 2. Either you or an IBM SSR defines the fibre-channel host system with the worldwide port name identifiers.
| | | 1. If you do not already have a directory called /SD_CDROM, type mkdir /SD_CDROM to create a new directory. 2. Insert the compact disc into the CD-ROM drive. 3. Mount the drive as a file system. a. Type: ioscan -fnkC disk Look for the device name on the list with a name of the compact disc. b. Type: mount /dev/dsk/c_t_d_ /SD_CDROM Replace /dev/dsk/c_t_d_ with the device special file found in step 3. 4. 5. 6. 7. 8. 9. 10. | 11. 12.
3. Extend the volume group to include the c3t0d0 path. When you issue a vgdisplay -v command on the volume group, the command lists c3t0d0 as an alternate link to the data.
Chapter 4. Attaching to an IBM AS/400 or iSeries host This chapter describes the host system requirements. This chapter also provides the procedures to attach an ESS to an IBM AS/400 or IBM iSeries host system with SCSI and fibre-channel adapters. Notes: 1. You cannot serially connect more than one AS/400 host system to the ESS. 2. You cannot interconnect more than one ESS attachment to a single port on the host adapter. 3. Your IBM AS/400 host system supports the ESS as a peripheral device.
| L LUN number 0 - 7 | PP ESS host port number 1 - 32 | | | | | | | | | NNN low-order three characters of the ESS unit serial number or unique three character value entered using an ESS service panel menu option 4. SCSI-3 attached LUNs emulate the 9337 device type. 5. You can place AS/400 volumes in the ESS storage arrays according to the selected host system attachment type.
3. A zero 4. a two-digit port number, followed by a 3-digit storage facility identification number The ESS sets the storage facility identification number equal to the last 3 characters of the array serial number. If your enterprise has installed multiple ESS arrays in which the last 3 characters of the array serial number are equal, the SSR can modify the value using the service login. An example of a storage facility number is: 01003789 for LUN 1 on port 3 in storage facility 789.
| | | | Note: From an ESS logical configuration view point, all AS/400 disks are RAID-5 and are protected within the ESS. When you create the AS/400 disk using ESS Specialist, you can create it as a protected or unprotected volume. See Table 11. | Table 11. Size and type of the protected and unprotected AS/400 models Size Type Protected Unprotected 4.190 GB 9337 48C 48A 8.589 GB 9337 59C 59A 17.548 GB 9337 5AC 5AA 35.165 GB 9337 5CC 5CA 36.
4. Contact your IBM service support representative to install and configure the IBM ESS. Attachment considerations | | This section lists the attachment considerations for an iSeries host system. 1. The ESS creates LUN serial numbers that are eight characters in the format 0LLLLNNN, where: | | LLLL A unique volume number assigned by the ESS when the LUN is created.
Description........................: Type-Model.........................: Status.............................: Serial number......................: Part number........................: Resource name......................: Port worldwide name................: PCI bus............................: System bus.......................: System board.....................: System card......................: Storage............................: I/O adapter......................: I/O bus..........................
Opt Description Type-Model Status Resource Name Combined Function IOP Disk Unit Disk Unit Disk Unit Disk Unit 2843-001 2766-001 2105-A82 2105-A81 2105-A81 Operational Operational Operational Operational Operational CMB04 DC18 DD143 DD140 DD101 Figure 32. Example of the logical hardware resources associated with an IOP Figure 33 shows an example of the display for the hardware service manager (HSM) auxiliary storage hardware resource detail for the 2105 disk unit. Description........................
Requirements for Copy Services To get current information about the host system models, operating systems, and adapters that the ESS supports, see the following Web site: www.storage.ibm.com/hardsoft/products/ess/supserver.
Setting up the 2109 S08 or S16 switch To set up the 2109 S08 Switch, see 2109 Model S08 Installation and Service Guide, and the 2109 Model S08 Users Guide. To set up the 2109 S16 Switch, see 2109 Model S16 Users Guide, and the 2109 Model S16 Installation and Service Guide. Managing the IBM 2109 S08 or S16 switch To manage the IBM 2109 S08 or S16 switch, you can choose from the following two methods: v Telnet commands v The Managed Hub StorWatch Specialist Chapter 4.
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Chapter 5. Attaching to an IBM Eserver xSeries 430 or IBM NUMA-Q host This chapter tells you how to attach an ESS to an IBM xSeries 430 or an IBM NUMA-Q host system with fibre-channel adapters. This chapter also tells you how to install and configure the IOC-0210-54 adapter card. | | Note: You can use either the switched fabric topology or direct fibre-channel arbitrated loop topology to attach the ESS to either an IBM xSeries 430 host.
System requirements The ESS is supported on the IBM xSeries 430 and the IBM NUMA-Q host systems by a module of code that is incorporated into Service Pack 3 for PTX V4.5.2. To install Service Pack 3: 1. Insert the Service Pack 3 compact disc into the CD-ROM drive. 2. Open the README file for instructions on installing Service Pack 3. See Table 14 for the NUMA-Q system requirements. Support for Copy Services on PTX V4.5.2 requires a special Technology Pack.
Chapter 6. Attaching to an IBM RS/6000 or IBM eServer pSeries host This chapter describes the host system requirements and provides procedures to attach an ESS to the following host systems with either SCSI or fibre-channel adapters: v v v v RS/6000 pSeries RS/6000 Series Parallel (SP) Complex pSeries SP Complex For procedures on how to migrate from SCSI to fibre-channel for an RS/6000 system and a pSeries host system, see “Appendix B. Migrating from SCSI to fibre-channel” on page 159.
open system, the IBM Subsystem Device Driver requires a minimum of two adapters. You can run the Subsystem Device Driver with one SCSI adapter, but you have no failover protection. The maximum number of adapters supported is 16 for a total of 32 SCSI ports. Installing the 2105 host attachment package This section provides the instructions to install the host attachment package for the ESS.
The Install and Update from the Latest Available Software panel opens with the name of the software you selected to install. 8. Check the default option settings to ensure that they are what you need. 9. Press Enter to install the software. SMIT responds with the following question: Are you sure? 10. Press Enter to continue. The installation process might take several minutes. A message displays when the installation process is complete. 11. 12. 13. 14. Press F10 when the installation process is complete.
on the AIX server for each physical LUN. If you create a PVID sector 0 of a LUN and you delete all hdisks from the system with the rmdev command, you must restart the system. If you want to restore all multiple paths for all LUNs, use the cfgmgr command for each SCSI adapter. Emulating UNIX-based host systems For UNIX-based host systems, the ESS emulates multiple SCSI DDMs. The host system accesses the virtual drives of the ESS as if they were generic SCSI DDMs.
v Point-to-point (switched fabric) topology v Arbitrated loop topology The RS/6000 and pSeries host systems do not support more than one host bus adapter on the loop. The RS/6000 and pSeries host systems do support a direct connection of the RS/6000 and pSeries host systems to an ESS using the fibre-channel arbitrated loop protocol. | | For procedures about how to attach an RS/6000 or pSeries host system with SCSI adapters, see “Attaching with SCSI adapters” on page 57.
1. Attach the ESS to your host system. See “General information about attaching to an open-systems host with SCSI adapters” on page 7. 2. Turn on the host system and all attachments. 3. Ensure that you have root access. 4. Ensure that you have administrator knowledge. 5. Ensure that you have knowledge of the System Management Interface Tool (SMIT).
11. 12. 13. 14. The installation process might take several minutes. A message displays when the installation process is complete. Press F10 when the installation process is complete. Exit from SMIT. Remove the compact disc. Restart the host system. Verifying the configuration To verify the configuration of the ESS on the AIX host system, type the following command: lsdev -Cc disk | grep 2105 A list of all ESS devices displays. See Figure 36 for an example.
Attaching to multiple RS/6000 or pSeries hosts without the HACMP/6000™ host system This section describes the requirements and provides the instructions to attach one or two ESSs to multiple host systems without the High Availability Cluster Multi-Processing/6000 (HACMP/6000) host system. Install HACMP/6000 to define and access a unique journaled file system (JFS) file stored on a single ESS from any attached host system.
v All host systems connected to the same ESS must have the same type of SCSI adapter or a compatible SCSI adapter. For details on adapters, see the following Web site: www.storage.ibm.com/hardsoft/products/ess/supserver.htm Attachment procedures Perform the following steps to attach multiple host systems to the ESS: 1. Is the ESS currently installed on a host system? Yes No ↓ Go to step 3. 2. Is any data stored on the ESS that you want to preserve? No Yes ↓ Go to “Saving data on the ESS” on page 66. 3.
18. Select an appropriate physical partition size for the volume group, using the Physical Partition Size. Note: AIX limits the number of physical partitions to 1016 per logical volume. This limitation does not apply to AIX 4.3.1. The default physical partition size is 4 MB. Choose this value to make the most efficient use of the physical hard disk size. See your host system documentation for more information. 19. Type smit chvg to change the volume group on the selected hdisk. 20.
5. Type mount to mount the ESS volume groups to the applicable host systems that are connected to the ESS. Perform the steps one system at a time. 6. If you want to create new volume groups, go to step 16 on page 65 in “Attachment procedures” on page 65. Configuring for the HACMP/6000 host system This section provides guidelines for planning and installing the software for the HACMP/6000 host system. The HACMP provides an availability solution for the commercial UNIX environment.
Table 16. Hardware and software levels supported for HACMP version 4.2.1, 4.2.2, 4.3.1, and 4.3.3 Hardware/Software HACMP 4.2.2 AIX 4.2.1 HACMP 4.2.2 AIX 4.3.3 HACMP 4.3.1 AIX 4.3.3 IBM SAN Data Gateway Model 2108 Not supported Model G07 Not supported HACMP APAR IY07313 and APAR IY09595 IBM ESS 2105 Model E20 APAR IY04403 APAR IY04403 APAR IY03438 IBM Subsystem Device Driver for UNIX Version 1.
Chapter 7. Attaching to an IBM S/390 or IBM eServer zSeries host This chapter describes the host system requirements to attach the IBM S/390 or zSeries host system to the ESS ESCON adapter or FICON adapter. For information about how to use parallel access volumes (PAVs) for S/390 and zSeries hosts, see the IBM Enterprise Storage Server User’s Guide. The guide includes an overview of PAV and PAV requirements, and an example of the input/output configuration program (IOCP).
Controller images and interconnections An ESS supports up to 16 controller images. All controller images are accessible over any installed ESCON physical path. Each controller image can have from 1 - 256 devices. The ranges of supported device addresses may be noncontiguous. Devices that are not mapped to a logical device respond and show address exceptions. Note: When a primary controller connects to a secondary controller, the primary connection converts to a channel.
Logical paths and path groups A logical path is a connection between a controller image and a host image. An ESCON link consists of two fibre-channels. There is a fibre-channel for each direction. An ESCON connector connects the fibre-channel port to an ESCON. Each ESCON adapter card supports two ESCON ports or links. Each port supports 64 logical paths. With a maximum of 32 ESCON ports, the maximum number of logical paths is 2048. Each controller image supports up to 64 path groups.
Cluster 1 Slot# ID Port 0 Port 1 Tag Port 0 Port 1 Cluster 2 Board 0 (CPI4) ______________ | | | | 0 1 2 3 Board 1 (CPI6) ______________ | | | | 0 1 2 3 Board 0 (CPI5) ______________ | | | | 0 1 2 3 Board 1 (CPI7) ______________ | | | | 0 1 2 3 806 804 802 800 807 805 803 801 816 814 812 810 817 815 813 811 80E 80C 80A 80C 80F 80D 80B 809 81E 81C 81A 818 81F 81D 81B 819 00 01 04 05 08 09 0C 0D 20 21 24 25 28 29 2C 2D 80 81 84 85 88 89 8C 8D A0 A1 A4 A5 A8 A9 AC AD Figure 39.
S/390 or zSeries Host 1 1 1 1 2 3 3 4 4 4 4 ESS S009064 Figure 40. Example of an ESCON configuration Mixed configuration Figure 41 on page 74 shows another example of a S/390 or zSeries host system with four ESCON channels 1 . In this example, two FICON channels 2 have been added to an S/390 or zSeries host. The illustration also shows the channel-path group 3 and FICON directors 4 through which the two FICON adapters 5 are installed in the ESS. The two FICON directors 4 are not required.
S/390 or zSeries Host 2 2 1 1 1 1 3 7 7 4 6 6 6 6 4 5 5 ESS S009065 Figure 41. Example of an ESCON configuration with added FICON channels FICON configuration Figure 42 on page 75 illustrates how to remove the ESCON paths. The S/390 or zSeries host has four ESCON channels 1 connected to two ESCON directors 6 . The S/390 or zSeries host system also has two FICON channels 2 . You can remove the ESCON adapters nondisruptively from the ESS while I/O continues on the FICON paths.
S/390 or zSeries Host 1 1 1 1 2 2 3 6 6 4 4 5 5 ESS S009066 Figure 42. Example of a native FICON configuration with FICON channels that have been moved nondisruptively Migrating from a FICON bridge to a native FICON attachment This section shows how to migrate from a FICON bridge to a native FICON attachment. The FICON bridge is a feature card of the ESCON Director 9032 Model 5. The FICON bridge supports an external FICON attachment and connects internally to a maximum of eight ESCON links.
S/390 or zSeries Host 1 1 3 2 2 4 4 4 4 ESS S009067 Figure 43. Example of how to configure a FICON bridge from an S/390 or zSeries host system to an ESS Mixed configuration Figure 44 on page 77 shows an example of an S/390 or zSeries host system with one FICON channel 1 and one FICON director 2 through a channel-path group 3 and FICON host adapter 4 to the ESS.
S/390 or zSeries Host 1 1 3 6 2 5 5 4 ESS S009068 Figure 44. Example of how to add a FICON director and a FICON host adapter Native FICON configuration Figure 45 on page 78 shows an S/390 or zSeries host system with two FICON channels 1 connected to two FICON directors 2 through a channel-path group 3 to two FICON adapters 4 . Note that the second bridge has been removed and a FICON director has been added. The channel-path group has only the FICON paths. Chapter 7.
S/390 Host or zSeries Host 1 1 3 2 2 4 4 ESS Figure 45. Example of the configuration after the FICON bridge is removed Attaching to a FICON channel This section tells you how to configure the ESS for a FICON attachment. Configuring the ESS for FICON attachment You can perform a FICON channel attachment on the ESS Models F10 and F20. You cannot perform a FICON channel attachment on the ESS Models E10 and E20.
supports 256 logical paths per FICON link (compared to just 64 for ESCON), 128 logical paths per logical subsystem, and 2048 logical paths for each ESS. Before FICON, you could only connect with a fibre-channel and use the fibre-channel protocol with feature code 3022. Feature code 3023, with a 50-micron single-mode fiber cable increases the point-to-point distance from 500 m (1500 ft) to 10 km (6.2 mi).
FICON does not support a private connection. FICON performs frame (or packet) multiplexing. A configuration with the serially connected controllers communicates with the controllers simultaneously. It can multiplex I/O operations across all controllers simultaneously. No interface cycles are wasted because of a private connection. You can serially connect controllers with FICON without performance degradation.
| When you attach FICON products to switches or directors, you cannot use cascade switches. You cannot configure a fabric of multiple interconnected directors and have a FICON channel attached to one director communicate to a FICON control unit that is attached to another director. The FICON architecture prohibits this capability. The reason for the restriction is because the base S/390 and zSeries I/O architecture uses a single byte for addressing the I/O devices.
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| | Chapter 8. Attaching a Linux host | | | | | This chapter describes how to attach a an Intel server that runs Linux with Red Hat 7.1 and SuSE 7.2 to an IBM ESS. You can attach to an ESS with the following adapter cards: | You cannot attach the ESS to a Linux host system with SCSI adapters.. | | Note: The steps to install and configure adapter cards are examples. Your configuration might be different.
| Installing the QLogic QLA2200F or Qlogic QLA2300F adapter card This section tells you how to attach an ESS to a Linux host system with the QLogic QLA2200F or Qlogic QLA2300F adapter card.
| | | | | | | | | | | | 8. From the Configuration Settings menu, scroll down to Extended Firmware Settings. Press Enter. 9. From the Extended Firmware Settings menu, scroll down to Connection Options to open the Option and Type of Connection window. 10. Press Enter. 11. Select the option: v 0: Loop only v 1: Point-to-point v 2: Loop preferred (If you cannot use arbitrated loop, then default to point-to-point.
| Installing the fibre-channel adapter drivers | Perform the following steps to install the fibre-channel adapter drivers. | | Note: This is an example of how to install the fibre-channel adapter drivers. Type mkdir /usr/src/qlogic Type mv [download location]/[driver source] /usr/src/qlogic Type tar -xzf [driver source] Type cd /usr/src/linux Type make modules Type make modules_instal Type make OSVER=linux-2.4.x SMP=1 where x represents kernel version, and SMP=1 if running multi-processors 8.
| | | | | | On the Red Hat distribution, there are all special device file entries available for the 128 devices. On the SuSE distribution, there are only special devices file available for the first sixteen devices. You must create all other devices manually using the mknod command. Configuration of ESS storage under Linux | | | | | | Each of the attached ESS LUNs has a special device file in the Linux directory /dev.
Command (m for help): n | | | | | | | | | | | | | | | | | | | Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First cylinder (1-953, default 1): Enter Using default value 1 Last cylinder or +size or +sizeM or +sizeK (1-953, default 953): Enter Using default value 953 Command (m for help): p Disk /dev/sdb: 64 heads, 32 sectors, 953 cylinders Units = cylinders of 2048 * 512 bytes Device Boot Start End Blocks Id /dev/sdb1 1 953 975856 83 Linux | | | | | | | | | | | | | | | |
Using mke2fs: [root@yahoo /data]# mke2fs /dev/sdb1 mke2fs 1.18, 11-Nov-1999 for EXT2 FS 0.5b, 95/08/09 Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 122112 inodes, 243964 blocks 12198 blocks (5.
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Chapter 9. Attaching to a Novell NetWare host This chapter describes how to attach an ESS to a Novell NetWare host system with the following adapter cards: v Adaptec AHA-2944UW v QLogic QLA1041 v QLogic QLA2100F v QLogic QLA2200F Note: The steps to install and configure adapter cards are examples. Your configuration might be different.
a. Set the parameters on the Advanced Configuration Options panel as follows: v Host Adapter SCSI ID: 7 v SCSI Parity Checking: Enabled v Host Adapter SCSI Termination: Automatic v Sync Transfer Rate (megabytes per second): 40.0 v Initiate Wide Negotiation: Yes v Enable Disconnection: Yes v Send Start Unit Command: No v Enable Write Back Cache: No v BIOS Multiple LUN Support: Yes v Include in BIOS Scan: Yes b.
14. Partition the devices and make volume groups. Installing and configuring the QLogic QLA1041 adapter card Perform the following steps to install and configure the QLogic QLA1041 adapter card. Note: The parameter settings shown are an example. The settings for your environment might be different. 1. Install the QLogic QLA1041 adapter card in the server. 2. Connect the cable to the ESS port. 3. Start the server. 4. Press the Alt+Q key to get to the FAST!Util menu. a.
SCAN ALL LUNS Note: This enables the server to scan all the attached storage before mounting the volumes. 11. Save the file. 12. Restart the server. 13. At the system console, type the following commands: SCAN FOR NEW DEVICES LIST DEVICES A list of all the devices is displayed. 14. Partition the devices and make volume groups.
9. To save the changes, click Yes. Press Enter. 10. Restart the server. Installing the QLogic QLA2200F adapter card This section tells you how to attach an ESS to a Novell NetWare host system with the QLogic QLA2200F adapter card.
8. From the Configuration Settings menu, scroll down to Extended Firmware Settings. Press Enter. 9. From the Extended Firmware Settings menu, scroll down to Connection Options to open the Option and Type of Connection window. 10. Press Enter. 11. Select the option: v 0: Loop only v 1: Point-to-point v 2: Loop preferred (If you cannot use arbitrated loop, then default to point-to-point.) v 3: Point-to point, otherwise loop (If you cannot use point-to-point, default to arbitrated loop.
Installing the adapter drivers Perform the following steps to install the fibre-channel adapter drivers: 1. From the NetWare server console, type nwconfig for NetWare 5.0 or 5.1 or load install for NetWare 4.x. 2. Select Driver Options. 3. Select Configure Disk and Storage Device Drivers. 4. In the SCSI Adapters window, click the Drivers tab. 5. Select Select an additional driver. 6. Press the Insert key. 7. Insert a floppy diskette with the QLogic drivers into the A:\ drive of the NetWare server.
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Chapter 10. Attaching to a Sun host This chapter tells you how to attach an ESS to a Sun Microsystem host system with SCSI or fibre-channel adapters. You must install the SCSI adapters in the Sun host system before you start. Attaching with SCSI adapters This section describes how to attach an ESS to a SUN host system with SCSI adapters. For procedures on how to attach an ESS to a SUN host system with fibre-channel adapters, see “Attaching with fibre-channel adapters” on page 104.
Note: The IBM Subsystem Device Driver does not support the Sun host system in a clustering environment. To have failover protection on an open system, the Subsystem Device Driver requires a minimum of two adapters. You can run the Subsystem Device Driver with one SCSI adapter, but you have no failover protection. The maximum number of adapters supported is 16 for a total of 32 SCSI ports.
name="sd" class="scsi" target=8 lun=0; name="sd" class="scsi" target=8 lun=1; name="sd" class="scsi" target=8 lun=2; name="sd" class="scsi" target=8 lun=3; name="sd" class="scsi" target=8 lun=4; name="sd" class="scsi" target=8 lun=5; name="sd" class="scsi" target=8 lun=6; name="sd" class="scsi" target=8 lun=7; Figure 51. Example of sd.conf file entries 4. If you attach the ESS to a Sun host through a PCI SCSI adapter, continue to step 5. If not, skip to step 7. 5. If the glm.
If you need to enable or disable a particular capability, use the following definitions for the SCSI subsystem options: v Bits 0 - 2 are reserved for debugging or informational-level switch. v Bit 3 is reserved for a global disconnect or reconnect switch. v Bit 4 is reserved for a global linked-command capability switch. v Bit 5 is reserved for a global synchronous-SCSI capability switch. All other bits are reserved for future use.
A File Manager window opens showing the paths for the Subsystem Device Driver package subdirectories. Figure 53 shows an example of the path. Note: You must be on the host console to see this window. /cdrom/unnamed_cdrom Figure 53. Example of the path you see when you insert the IBM Subsystem Device Driver compact disc 3. Change to the subdirectory that contains the Subsystem Device Driver package. a. For Sun host hardware platforms limited to 32-bit mode and for all Sun host systems running Solaris 2.
sd_max_throttle This sd_max_throttle parameter specifies the maximum number of commands that the sd driver can queue to the host bus adapter driver. The default value is 256, but you must set the parameter to a value less than or equal to a maximum queue depth for each LUN connected. Determine the value using the following formula: 256 LUNs per adapter The parameter shows thirty two 2105 LUNs attached to controller 1, (c1t#d#), and forty eight 2105 LUNs attached to controller 2, (c2t#d#).
This section also tells you how to change the Sun system kernel. Before you start, you must meet the attachment requirements listed in “Attachment requirements”. For procedures on how to attach a SUN host system with SCSI adapters, see “Attaching with SCSI adapters” on page 99. Attachment requirements This section lists the requirements for attaching the ESS to your host system: v Ensure there are enough fibre-channel adapters installed in the server to handle the total LUNs you want to attach.
IBM Subsystem Device Driver requires a minimum of two fibre-channel adapters. The maximum number of fibre-channel adapters supported is 16 for a total of 16 fibre-channel ports. The following two Subsystem Device Drivers support Sun host systems:: v Sun host hardware platforms limited to 32-bit mode and all Sun host systems running Solaris 2.6. v Sun host hardware platforms with 64-bit mode capabilities that run Solaris 7 or Solaris 8.
Installing the Emulex LP8000 adapter drivers Perform the following steps to install the fibre-channel adapter drivers: 1. Log in as root. 2. Type emlxtemp to create a temporary directory. 3. Type cd emlxtemp to change the directory to the temporary directory. If you are downloading the file from the ftp site or have the file on the CD-ROM, go to step 5. 4. Type /etc/init.d/volmgt stop and then unmount /dev/fd to copy the tar file from a floppy diskette. 5.
Installing the JNI PCI adapter card This section tells you how to attach an ESS to a Sun host system with the JNI PCI adapter card. Perform the following steps to install the JNI PCI adapter card: 1. Turn off and unplug the computer. 2. Remove the computer case. 3. Remove the blank panel from an empty PCI bus slot. 4. Insert the host adapter board into the empty PCI bus slot. Press firmly until seated. 5. Secure the mounting bracket for the adapter to the case with the panel screw. 6.
Installing the JNI SBUS adapter card This section tells you how to attach an ESS to a Sun host system with the JNI SBUS adapter card. Perform the following steps to install the JNI SBUS adapter card: 1. Turn off and unplug the computer. 2. Remove the computer case. 3. Remove the blank panel from an empty SBUS slot. 4. Insert the host adapter board into the empty SBUS slot. Press firmly until seated. 5. Secure the mounting bracket for the adapter to the case with the panel screw. 6.
Installing the QLogic QLA2200F adapter card This section tells you how to attach an ESS to a Sun host system with the QLogic QLA2200F adapter card. Perform the following steps to install the QLogic QLA2200F adapter card: 1. Install the QLogic QLA2200F adapter card in the host system. 2. Connect the cable to the ESS port. 3. Restart the server. 4. Press Alt+Q to get to the FAST!Util menu. 5. From the Configuration Settings menu, select Host Adapter Settings.
v 1: Point-to-point (preferred setting) v 2: Loop preferred (If you cannot use arbitrated loop, then default to point-to-point) v 3: Point-to point, otherwise loop (If you cannot use point-to-point, default to arbitrated loop). Notes: a. If you connect the ESS directly to the host system, the option you select must match the port connections on the ESS. b. If you connect through a switch, the options do not need to match the port connections because the ESS is point-to-point. c.
Note: If you are installing the fibre-channel adapter for the first time, you must specify the correct topology. You must also select the appropriate device mapping driver. 1. Go to the following Web site: www.qlogic.com 2. From the home page, click Driver Download. 3. Click Use QLogic Drivers button. 4. Click Fibre Channel Adapter Drivers and Software. 5. In the table for QLogic Fibre Channel Adapters, click QLA22xx. 6. From the Software and Drivers available menu, click Solaris. 7.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | name="sd" class="scsi" class_prop="atapi" target=0 lun=0; name="sd" class="scsi" class_prop="atapi" target=1 lun=0; name="sd" class="scsi" class_prop="atapi" target=2 lun=0; name="sd" class="scsi" class_prop="atapi" target=3 lun=0; name="sd" class="scsi" target=4 lun=0; name="sd" class="scsi" target=5 lun=0; name="sd" class="scsi" target=6 lun=0; name="sd" class="scsi" target=8 lun=0; name="sd" class="scsi" target=9 lun=0; name="sd
name="sd" class="scsi" target=0 lun=0; name="sd" class="scsi" target=0 lun=1; name="sd" class="scsi" target=0 lun=2; name="sd" class="scsi" target=0 lun=3; name="sd" class="scsi" target=0 lun=4; name="sd" class="scsi" target=0 lun=5; name="sd" class="scsi" target=0 lun=6; name="sd" class="scsi" target=0 lun=7; name="sd" class="scsi" target=0 lun=8; name="sd" class="scsi" target=0 lun=9; name="sd" class="scsi" target=0 lun=10; . . .
4. Type reboot ---r from the Open Windows window to shutdown and restart the Sun host system with the kernel reconfiguration option. Or, type boot -- -r from the OK prompt after you shutdown. The fibre-channel adapters that are supported for attaching the ESS to a Sun host are capable of full-fabric support. IBM recommends that all fibre-channel driver configurations include worldwide port name, worldwide node name, port ID, or host-bus-adapter binding of target LUN pairs.
Table 22. Recommended configuration file parameters for the host bus adapters for the JNI FC64-1063 and JNI FCI-1063. (continued) Parameters Recommended settings public loop 0: Default. Recommended. Initializes according to which fca_nport is set as disabled. ip_disable 0: Default. IP side of the driver is enabled. 1: Recommended for fabric. IP side of the adapters is completely disabled.
Installing the IBM Subsystem Device Driver The following instructions explain how to install the IBM Subsystem Device Driver from a compact disc. You can use the IBM Subsystem Device Driver in conjunction with the IBM Copy Services command-line interface program. 1. Type ps -ef | grep vold to ensure that the volume manager is running. This command displays the /usr/sbin/vold process. If it does not display, type /etc/init.d/volmgt start 2. Insert the IBM Subsystem Device Driver CD into the CD-ROM drive.
Setting the Sun host system parameters The following sections contain the procedures to set the Sun host system parameters for optimum performance on the ESS with the following adapters: v JNI v Emulex v QLogic JNI adapters The following sections contain the procedures to set the Sun host system parameters for optimum performance on the ESS with the JNI adapter: 1. Type cd/etc to change to the /etc subdirectory. 2. Backup the system file in the subdirectory. 3.
If you are use the Veritas volume manager on the ESS LUNs, you must set the VxVM max I/O size parameter (vol_maxio) to match the maxphys parameter. If you set the maxphys parameter to 8388608, add the following line to the /etc/system file to set the VxVM I/O size to 8 MB: set vxio:vol_maxio=16384 Emulex or QLogic adapters Perform the following steps to set the Sun host system parameters for optimum performance on the ESS with the Emulex or QLogic adapter: 1.
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Chapter 11. Attaching to a Windows NT 4.0 host This chapter tells you how to attach the ESS to a Windows NT host system with SCSI or fibre-channel adapters. Attaching with SCSI adapters This section describes how to attach a Windows NT host system to an ESS with the following SCSI adapters. v Adaptec AHA-2944UW v Symbios 8751D v QLogic QLA1041 For procedures about how to attach an ESS to a Windows NT host system with fibre-channel adapters, see “Attaching with fibre-channel adapters” on page 126.
perform the LUN mapping. Otherwise, the time to restart could take 10 minutes per Peer-to-Peer Remote Copy target volume. See the following Web site for the most current information about the IBM Subsystem Device Driver: www.ibm.com/storage/support/techsup/swtechsup.nsf/support/sddupdates Installing and configuring the Adaptec AHA-2944UW adapter card Note: The steps to install and configure adapter cards are an example. Your configuration might be different.
8. Save the changes and select SCSISelect again to verify that you saved the changes. 9. Restart the server. 10. Load the Adaptec drive, and restart the system if instructed to do so. Installing and configuring the Symbios 8751D adapter card Perform the following steps to install and configure the Symbios 8751D adapter card. Note: The parameter settings shown are an example. The settings for your environment might be different. 1. Install the Symbios 8751D in the server. 2.
v v v v v Removable Media Support: [None] CHS Mapping: [SCSI Plug and Play Mapping] Spinup Delay (Secs): [2] Secondary Cluster Server: [No] Termination Control: [Auto] v Restore Defaults: (restores defaults) f. Set the parameters on the Device Properties panel as follows: v MT or Sec: [20] v Data Width: [16] v Scan ID: [Yes] v Scan LUNs >0: [Yes] v Disconnect: [On] v v v v v v SCSI Time-out: 240 Queue Tags: [On] Boot Choice: [No] Format: [Format] Verify: [Verify] Restore defaults: (restores defaults) g.
v v v v v Disconnects OK: Yes Check Parity: Yes Enable LUNS: Yes Enable Devices: Yes Negotiate Wide: Yes v Negotiate Sync: Yes v Tagged Queueing: Yes v Sync Offset: 8 v Sync Period: 12 v Exec Throttle: 16 c. Save the changes and select FAST!Util again to verify that you saved the changes. 5. Restart the server. 6. Load the QLogic driver, and restart the system if instructed to do so.
d. For radix, click hex. e. Click OK. 5. Exit the Regedt32 program. 6. Restart your Windows NT server for the changes to take effect. Performing a FlashCopy from one volume to another volume Perform the following steps to perform a FlashCopy from one Windows NT 4.0 volume to another volume. Before you perform the steps, you must log on with administrator authority. The following steps assume you are performing the steps from the host with the FlashCopy target. 1.
v See the following Web site for details about the release level for your operating system: www.storage.ibm.com/hardsoft/products/ess/supserver.htm Either you or an IBM service support representative (SSR) must perform the following tasks to install and configure an ESS. 1. The IBM SSR installs the ESS by using the procedures in the IBM Enterprise Storage Server Service Guide. 2. Either you or an IBM SSR defines the fibre-channel host system with the worldwide port name identifiers.
6. From the Advanced Adapter Settings menu, press the Down Arrow to highlight LUNs per target; then press Enter. 7. Use the Down Arrow to find and highlight 256. Press Enter. 8. Press Esc. 9. To save the changes, click Yes. Press Enter. 10. Restart the server. Installing the QLogic QLA2200F adapter card This section tells you how to attach an ESS to a Windows NT host system with the QLogic QLA2200F adapter card. Perform the following steps to install the QLogic QLA2200F adapter card: 1.
7. Press Esc to return to the Configuration Settings menu. 8. From the Configuration Settings menu, scroll down to Extended Firmware Settings. Press Enter. 9. From the Extended Firmware Settings menu, scroll down to Connection Options to open the Option and Type of Connection window. 10.
When the unzip process completes, you should see a message that says, x files unzipped successfully, where x equals the number of files you unzipped. Click OK. 13. Click Close to close the window for unzipping the file. Installing the QLogic adapter drivers Perform the following steps to install the fibre-channel adapter drivers. Note: If you are installing the fibre-channel adapter for the first time, you must specify the correct topology. You must also select the appropriate device mapping driver. 1.
Downloading the Emulex adapter driver Perform the following steps to install the port driver. 1. Plug in and restart your host system. 2. Go to the following Web site: www.emulex.com | | 3. From the Quick Links menu, click Documentation, Drivers and Software. 4. Click the host adapter type from the host adapter menu. For example, click Emulex LP8000. 5. Click Drivers for Windows NT. 6. Click Specialized Drivers. 7.
Note: If you are installing the fibre-channel adapter for the first time, you must specify the correct topology. You must also select the appropriate device mapping driver. From your desktop, click Start → Settings. Double click Control Panel. Double click SCSI Adapters. Click the Drivers tab. Click Add to create a list of drivers. A window opens that indicates the progress of the operation. When the operation completes, the window closes and displays another window called Install Driver. 6.
| | Table 24.
configuration. You can retrieve and use it in different ways depending on the type of host bus adapter. The following instructions tell you how to modify the value safely in either the Windows NT registry or in the device adapter parameters. | | | Setting the TimeOutValue registry Perform the following steps to set the timeout value registry: 1. From the Run menu or command prompt, type: Regedt32.exe 2. Navigate to the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Disk 3.
| | | | | | 3. From the Disk Administrator window, select the disk drive letter that is your target. 4. From the menu bar, click Tools → Assign Drive letter. 5. From the Assign Driver letter window, click Do Not Assign a Drive Letter. 6. Click OK. 7. Perform the FlashCopy operation. | | | | | | | Note: If the ESS uses the volume serial numbers to do a FlashCopy on a Windows NT host system, use the IBM Subsystem Device Driver to obtain the volume serial numbers. 8.
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Chapter 12. Attaching to a Windows 2000 host This chapter tells you how to attach the ESS to a Windows 2000 host system with SCSI and fibre-channel adapters. Attaching with SCSI adapters This section describes how to attach an ESS to a Windows NT host system with SCSI adapters. For procedures about how to attach an ESS to a Windows 2000 host system with fibre-channel adapters, see “Attaching with fibre-channel adapters” on page 142.
Attaching an ESS to a Windows 2000 host system This section describes how to attach a Windows 2000 host system to an ESS with the following adapter cards: v Adaptec AHA-2944UW v Symbios 8751D v QLogic QLA1041 Installing and configuring the Adaptec AHA-2944UW adapter card Note: The steps to install and configure adapter cards are examples. Your configuration might be different. Perform the following steps to install and configure the Adaptec AHA-2944UW adapter card: 1.
9. Restart the server. 10. Load the Adaptec drive, and restart the system if instructed to do so. Installing and configuring the Symbios 8751D adapter card Perform the following steps to install and configure the Symbios 8751D adapter card. Note: The parameter settings shown are an example. The settings for your environment might be different. 1. Install the Symbios 8751D in the server. 2. Connect the cable to the ESS port. 3. Start the server. 4.
v v v v v CHS Mapping: [SCSI Plug and Play Mapping] Spinup Delay (Secs): [2] Secondary Cluster Server: [No] Termination Control: [Auto] Restore Defaults: (restores defaults) f. Set the parameters on the Device Properties panel as follows: v MT or Sec: [20] v Data Width: [16] v Scan ID: [Yes] v Scan LUNs >0: [Yes] v Disconnect: [On] v SCSI Time-out: 240 v Queue Tags: [On] v Boot Choice: [No] v Format: [Format] v Verify: [Verify] v Restore defaults: (restores defaults) g.
v v v v v Check Parity: Yes Enable LUNS: Yes Enable Devices: Yes Negotiate Wide: Yes Negotiate Sync: Yes v Tagged Queueing: Yes v Sync Offset: 8 v Sync Period: 12 v Exec Throttle: 16 c. Save the changes and select FAST!Util again to verify that you saved the changes. 5. Restart the server. 6. Load the QLogic driver, and restart the system if instructed to do so.
e. Click OK. 5. Exit the Regedt32 program. 6. Restart your Windows 2000 server for the changes to take effect. Performing a FlashCopy from one volume to another volume Perform the following steps to perform a basic FlashCopy from one Windows 2000 volume to another volume. Before you perform the steps, you must log on with administrator authority. The following steps assume you are performing the steps from the host with the FlashCopy target. 1. Perform the FlashCopy operation.
For procedures that describe how to attach a Windows 2000 host system with SCSI adapters, see “Attaching with SCSI adapters” on page 137. Attachment requirements This section lists the requirements for attaching the ESS to your host system: v Check the LUN limitations for your host system; see Table 6 on page 11. v Ensure that you have the documentation for your host system and the IBM Enterprise Storage Server User’s Guide. The User’s Guide is on the compact disc that you receive with the ESS.
Note: The arbitrated-loop topology is the only topology available for the QLogic QLA2100F adapter card. Perform the following steps to install the QLogic QLA2100F adapter card: 1. Install the QLogic QLA2100F adapter card in the host system. 2. Connect the cable to the ESS port. 3. Restart the host system. 4. Press Alt+Q to get to the FAST!Util menu. 5. From the Configuration Settings menu, select Host Adapter Settings. 6.
k. Enable database updates: No l. Disable database load: No m. IOCB allocation: 256 n. Extended error logging: Disabled (might be enabled for debugging) Note: The Enable LIP reset, Enable LIP full logon, and Enable target reset parameters control the behavior of the adapter when Windows 2000 tries to do a SCSI bus reset. You must perform a target reset to make cluster failovers work. Use the SCSI bus device reset option to clear SCSI reservations.
8. 9. 10. 11. You have the option to save the driver file to a floppy diskette or a directory on your hard drive. Click Save. A window that shows the progress of the download is displayed. When the download completes, click Close. Go to the file directory where you stored the file. Unzip the file by double clicking the icon. When you double click the icon, a window opens. 12. Click Unzip.
v Target and public initiator v Target and private initiator Note: If you use the Emulex LP8000 adapter card with the McData ED-5000 switch, non-switched configurations are not supported. For fibre-channel connection through the SAN Data Gateway, the ED-5000 is only supported on the Emulex adapter. Perform the following steps to install the Emulex LP8000 adapter card: 1. Turn off and unplug the computer. 2. Remove the computer case. 3. Remove the blank panel from an empty PCI bus slot. 4.
15. 16. 17. 18. v Oemsetup v Readme v Txtsetup.oem Double click Readme to get the instructions to install the fibre-channel adapter driver. Print the Readme file. In the WinZip Wizard - Unzip Complete window, click Close. Ensure that the name of the file you want to download is displayed in the window. If the name of the file you want to download is not displayed in the window, go to step 2 on page 147 in “Downloading the Emulex adapter driver” on page 131.
| | Parameter settings for the Emulex LP8000 for a Windows 2000 host system See Table 25 for recommended host bus adapter configuration file parameters for an Emulex LP8000 adapter. The settings are for an ESS model F20 that is attached through a switch using the fabric, automap SCSI devices port driver, and an ESS model F20 that is attached directly, using the arbitrated loop, automap SCSI devices port driver. | | | | | | | Table 25.
| | Table 25. Recommended configuration file parameters for the host bus adapters for the Emulex LP8000 adapter on a Windows 2000 host system (continued) | Parameters Recommended settings | Link speed Auto | | Note: ¹ Link control is not shown for direct attachment. | Configuring the ESS with the Emulex LP8000 host adapter card To configure the Emulex LP8000 adapter card, use the ESS Specialist.
Verifying the host is configured for storage Perform the following steps to determine whether or not your Windows 2000 host system is configured for storage: 1. Partition new drives with Disk Administrator. 2. From the Windows 2000 desktop, right click Start. 3. Click Explore and verify that you can see the fibre-channel drives. 4. Select a large file (for example, 9 MB file), and drag (copy) it to a fibre-channel drive.
This assigns the driver letter to the target if needed. 7. Find the disk that is associated with your volume. There are two panels for each disk. The panel on the left should read Dynamic and Foreign. It is probable that a drive letter is not associated with that volume. 8. Right click on that panel and select Import Foreign Disks. 9. Click OK, then OK again. The volume now has a drive letter assigned to it. It is defined as Simple Layout and Dynamic Type. You can read and write to that volume. 10.
Appendix A. Locating the worldwide port name (WWPN) This chapter tells you how to locate the WWPN value for a fibre-channel adapter on the following host systems: v Compaq v Hewlett-Packard 9000 v IBM eServer AS/400 and iSeries v IBM eServer NUMA-Q or xSeries 430 v IBM eServer RS/6000 and pSeries v Novell NetWare v Sun v Windows NT 4.0 v Windows 2000 Fibre-channel port name identification The WWPN consists of exactly 16 hexadecimal characters (0 - 9 and A - F).
Message: wwidmgr available only prior to booting. Reinit system and try again. Explanation: Type P00>>>init wwidmgr again. Message: wwidmgr: No such command Explanation: Type P00>>set mode diag wwidmgr If the system is already running, you can find the WWPN in the log file /var/adm/messages. 2. Type: #fgrep wwn /var/adm/messages Figure 63 shows an example of the output when you type #fgrep wwn / var/adm/messages. You can find the WWPN in the last column. ... Nov 9 Nov 10 Nov 13 Nov 14 Nov 15 ...
5. On the Hardware Service Manager panel, type 1 to select Packaging hardware resources (systems, frames, cards,...). 6. On the Packaging Hardware Resources panel, type 9 to select the System Expansion unit. 7. On the Packaging Hardware Resources panel, type 8 to select Multiple Function IOA. 8. On the Logical Resources Associated with a Packaging Resource panel, type 5 to select Multiple Function IOA. 9.
| Locating the WWPN for a Linux host To locate the WWPN for an Intel server running Linux with Red Hat 7.1 and SuSE 7.1 with a QLlogic adapter, perform the following steps: 1. Restart the server. 2. Press Alt+Q to get the FAST!Util menu. If you have more than one fibre-channel adapter installed, all the fibre-channel adapters display. Scroll down to the adapter you want. Press Enter. 3. From the Fast Util! menu, scroll down and select Select Host Adapter. 4. Scroll up and highlight Configuration Settings.
| | | b. For the JNI PCI adapter, search for fca-pcix: Fibre Channel WWNN, where x is the adapter number (0, 1, and so on). You can find the WWPN on the same line following the WWNN. | | | | c. For the Qlogic QLA2200F adapter, search for qla2200-hbax-adapter-portname where x is the adapter number (0, 1, and so on). d. For the Emulex LP8000 adapter, search for lpfcx: Fibre Channel WWNN where x is the adapter number 0, 1, and so on).
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Appendix B. Migrating from SCSI to fibre-channel | | | | | | This chapter describes how to migrate disks or logical volumes within the ESS from SCSI to fibre-channel for the following host systems: v Hewlett-Packard v RS/6000 (AIX v Windows NT v Windows 2000 | An experienced system administrator should perform the migration.
www.ibm.com/storage/support/techsup/swtechsup.nsf/support/sddupdates/ 2. Reset your host system or execute the appropriate command to initiate device discovery. Nonconcurrent migration This section tells you how to migrate disks using a nonconcurrent method. Other host systems attached to the same ESS can continue their work while this procedure is performed. Note: The migration procedures in this chapter have been tested successfully. However, there are other ways you can migrate disks to fibre-channel.
5. Export the volume group. Enter a file name (full path) where you want to store the logical volume information for the volume group that you are exporting. See Figure 64 for an example of the information that is displayed. 6. Disconnect the SCSI cable and connect a fibre-channel cable to the host system and to the ESS. You do not need to remove the SCSI cable. 7. Use the ESS Specialist to unassign all the LUNs on the ESS that were assigned to the host system through the SCSI cable.
See Figure 65 for an example of what is displayed by SAM when you import a volume group. S009031 Figure 65. SAM display of an import volume group After the command completes successfully, the essvg volume group is active as shown in Figure 65. 17. Mount all your file systems that were unmounted in the beginning of this migration process. 18. Restart your databases and applications when all the file systems are available.
for i in 'cat /tmp/disk1' do SN='lscfg -vl $i | grep Serial' echo $i, $SN >> /tmp/output done /# Figure 66. Sample script to get the hdisk number and the serial number See Figure 67 for an example of the output for the script.
15. Start your application or databases. Migrating on a Windows NT or Windows 2000 host system This section tells you how to migrate from SCSI to fibre-channel adapters on a Windows NT or Windows 2000 host system. Before you migrate, ensure that the following prerequisites are complete: v Your host system has disks or logical volumes that are located on an ESS that is already in use. v The disk or logical volumes are attached to the host system with two or more SCSI interfaces.
S009028 Figure 69. Initial setup of volumes attached to SCSI adapters on the host See Figure 70 for an example of how this information looks in the Disk Administrator window. S009029 Figure 70. Disk Administrator panel showing the initial setup Appendix B.
Figure 70 on page 165 shows the volumes (only 5 out of 10 are shown here because of the limit of the Disk Administrator window). In this example, the volumes are labeled using their logical drive letter and volume identifier (3 characters in length). Table 26 shows the relationship between the volumes and their mapping. Table 26.
v Your host system has disks or logical volumes that are located on an ESS that is already in use. v The disk or logical volumes are attached to the host system with two or more SCSI interfaces. v The IBM Subsystem Device Driver is installed and running properly. Notes: 1. If you use the IBM Subsystem Device Driver for AIX, you cannot perform a concurrent migration because it does not support the simultaneous attachment to LUNs through SCSI and fibre-channel paths. 2.
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Appendix C. Migrating from the IBM SAN Data Gateway to fibre-channel attachment This chapter describes how to migrate a Storage Area Network (SAN) Data Gateway to a fibre-channel attachment. You must use a bridge or the SAN Data Gateway to connect between the fibre-channel interface and the SCSI, SSA, or other interfaces. Overview of the IBM SAN Data Gateway The SAN Data Gateway is a protocol converter between fibre channel interfaces and SCSI interfaces.
Table 27. LUN limitations for various components (continued) System component LUN limit Host bus adapter 256 ESS 960 (15 target IDs times 64 LUNs) SAN Data Gateway 255 Table 27 on page 169 shows a maximum LUN limit of 120 because it is the lowest number supported by one of the components. However, fixes are available to eliminate problems and limitations. For example, Service Pack 4 and above already supports up to 256 devices.
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Glossary This glossary includes terms for the IBM TotalStorage Enterprise Storage Server (ESS) and other Seascape solution products. This glossary includes selected terms and definitions from: v The American National Standard Dictionary for Information Systems, ANSI X3.172–1990, copyright 1990 by the American National Standards Institute (ANSI), 11 West 42nd Street, New York, New York 10036. Definitions derived from this book have the symbol (A) after the definition.
| common symbols. Some organizations, including IBM, | have used the parity bit to expand the basic code set. assigned storage. On an ESS, the space allocated to a volume and assigned to a port. instructions or data. The cache memory is typically smaller and faster than the primary memory or storage medium. In addition to residing in cache memory, the same data also resides on the storage devices in the storage facility. authorized program analysis report (APAR).
concurrent maintenance. Service that is performed on a unit while it is operational. channel subsystem. In Enterprise Systems Architecture/390, the part of a host computer that manages I/O communication between the program and any attached control units. concurrent media maintenance. Service performed on a disk drive module (DDM) without losing access to the data. channel-subsystem image.
| Coordinated Universal Time (UTC). The international | standard of time that is kept by atomic clocks around | the world. cylinder. A unit of storage on a CKD device. A cylinder has a fixed number of tracks. D Copy Services client. Software that runs on each ESS cluster in the Copy Services server group and that performs the following functions: DA. See device adapter and SSA adapter. v Communicates configuration, status, and connectivity information to the Copy Services server. daisy chain.
dedicated storage. Storage within a storage facility that is configured such that a single host system has exclusive access to the storage. demote. To remove a logical data unit from cache memory. A subsystem demotes a data unit in order to make room for other logical data units in the cache. It might also demote a data unit because the logical data unit is not valid. A subsystem must destage logical data units with active write units before they can be demoted. | | | | | | | | | | DNS.
LPARs to share an ESCON channel path by providing each LPAR with its own channel-subsystem image. EMIF. See ESCON multiple image facility. enclosure. A unit that houses the components of a storage subsystem, such as a control unit, disk drives, and power source. end of file. A coded character recorded on a data medium to indicate the end of the medium. On a CKD direct access storage device, the subsystem indicates the end of a file by including a record with a data length of zero. engineering change (EC).
the Model F10, including the ability to support a separate expansion enclosure. fabric. In fibre-channel technology, a routing structure, such as a switch, receives addressed information and routes to the appropriate destination. A fabric can consist of more than one switch. When multiple fibre-channel switches are interconnected, they are said to be cascaded. | | | | | | | | | | failback. Cluster recovery from failover following | repair. See failover. failover.
gigabyte (GB). A gigabyte of storage is 109 bytes. A gigabyte of memory is 230 bytes. hop. Interswitch connection. A hop count is the number of connections that a particular block of data traverses between source and destination. For example, data traveling from one hub over a wire to another hub traverses one hop. | GDPS. Geographically Dispersed Parallel Sysplex, an | S/390 multi-site application availability solution. group. See disk drive module group or Copy Services server group. host adapter (HA).
| IBM TotalStorage Enterprise Storage Server | Specialist (ESS Specialist). Software with a | Web-browser interface for configuring the ESS. | | | | | IBM TotalStorage Enterprise Storage Server Copy Services (ESS Copy Services). Software with a Web-browser interface for configuring, managing, and monitoring the data-copy functions of FlashCopy and PPRC. | | | | | IBM TotalStorage Enterprise Storage Server Network (ESSNet). A private network providing Web browser access to the ESS.
the data in the key field and use the key field to identify or locate a given record. The subsystem does not use the key field. subsystem that allow communication over an ESCON or FICON write interface and an ESCON or FICON read interface. kilobyte (KB). (1) For processor storage, real, and virtual storage, and channel volume, 210 or 1024 bytes. (2) For disk storage capacity and communications volume, 1000 bytes. local area network (LAN).
| | | | records might include such information as feature code information and product logical configuration information. For S/390 or zSeries hosts, a logical subsystem represents a logical control unit (LCU). Each control-unit image is associated with only one logical subsystem. See control-unit image. mainframe. A computer, usually in a computer center, with extensive capabilities and resources to which other computers may be connected so that they can share facilities. (T) logical unit.
| Microsoft Internet Explorer (MSIE). Web browser | software manufactured by Microsoft. group to store data using the redundant array of disks (RAID) data-striping methodology. nonremovable medium. A recording medium that cannot be added to or removed from a storage device. MIH. See missing-interrupt handler. mirrored pair. Two units that contain the same data. The system refers to them as one entity. nonretentive data. Data that the control program can easily recreate in the event it is lost.
| | | | | | | | | | power-on self test (POST). A diagnostic test run by servers or computers when they are turned on. parallel access volume (PAV). An advanced function of the ESS that enables OS/390 and z/OS systems to issue concurrent I/O requests against a CKD logical volume by associating multiple devices of a single control-unit image with a single logical device. Up to 8 device addresses can be assigned to a parallel access volume.
S PTF. See program temporary fix. | | | | PV Links. Short for Physical Volume Links, an alternate pathing solution from Hewlett-Packard providing for multiple paths to a volume, as well as static load balancing. R rack. See enclosure. S/390 and zSeries. IBM enterprise servers based on Enterprise Systems Architecture/390 (ESA/390) and z/Architecture, respectively. “S/390” is a shortened form of the original name “System/390”. | | | | RAID. See redundant array of inexpensive disks and array.
and uses information in the data stream to determine character boundaries and inter-conductor synchronization. sequential access. A mode of accessing data on a medium in a manner that requires the storage device to access consecutive storage locations on the medium. sequential access method (SAM). An access method for storing, deleting, or retrieving data in a continuous sequence based on the logical order of the records in the file. | | | | | SIM. See service-information message.
continuing the operation of the computer. The ESS contains four processors set up in SMP mode. holding status for the channel, and the channel responded with the stack-status control the last time the control unit attempted to present the status. synchronous write. A write operation whose completion is indicated after the data has been stored on a storage device. stage operation. The operation of reading data from the physical disk drive into the cache. System/390. See S/390. staging.
V the track. The record has a count field with a key length of zero, a data length of 8, and a record number of 0. This record is sometimes referred to as R0. transaction processing facility (TPF). A high-availability, high-performance IBM operating system, designed to support real-time, transaction-driven applications. The specialized architecture of TPF is intended to optimize system efficiency, reliability, and responsiveness for data communication and database processing.
Numerics | | | | | 2105. The machine number for the IBM Enterprise Storage Server (ESS). 2105-100 is an ESS expansion enclosure typically referred to as the Model 100. See IBM TotalStorage Enterprise Storage Server and Model 100. | | | | | 3390. The machine number of an IBM disk storage system. The ESS, when interfaced to IBM S/390 or zSeries hosts, is set up to appear as one or more 3390 devices, with a choice of 3390-2, 3390-3, or 3390-9 track formats. | 3990.
Index Numerics 2000 host system, Windows attaching with SCSI adapters 137 fibre-channel attachment 142 migrating from SCSI to fibre-channel 164 2105 host attachment package RS/6000 or pSeries 58, 61 host install script file Hewlett-Packard host system 40, 42 8751D adapter card configuring 123, 139 installing 123, 139 9032 Model 5 support 70 9337 subsystem emulation 46 A about this guide xv Adaptec adapter card configuring Novell NetWare host system 91 Windows 2000 host system 138 Windows NT host system 122
attachment (continued) requirements (continued) pSeries host system 57, 61 RS/6000 host system 57, 61 Sun host system 99, 105 Windows 2000 host system 137, 143 Windows NT 83 Windows NT host system 121, 126 xSeries host system 55 audience of this guide xv availability configuring for 125, 133, 141, 150 continuous 2 B battery disposal xiii bridge feature, ESCON director for S/390 and zSeries 70 C cable connecting the SCSI 9 distances for S/390 and zSeries, ESCON 70 ESCON host 70 interconnection for SCSI 7 l
drivers (continued) installing JNI PCI fibre-channel adapter 108 JNI SBUS fibre-channel adapter 109 Linux, installing 86 Novell NetWare, installing 97 Sun, installing 111 Windows 2000, installing 146 Windows NT, installing 130 E edition notice ii electronic emission notices 180 electrostatic discharge (ESD) sensitive components, handling 10 emulation 9337 subsystem 46 UNIX 60 Emulex LP8000 adapter card downloading 131, 147, 148 Sun host system 106 installing Sun host system 106 Windows 2000 host system 146
G German compliance statement 181 glossary 185 groups, path for S/390 and zSeries 71 H HACMP/6000 attaching a ESS to multiple RS/6000 pSeries hosts without 64 configuring for high-availability 67 handling electrostatic discharge (ESD) sensitive components 10 hardware requirements for attaching multiple host systems 64 Hewlett-Packard host system attaching the ESS 39, 41 configuring MC/ServiceGuard 41 configuring MC/ServiceGuard on an 43 installing the 2105 host install script 40, 42 locating the WWPN 154 m
JNI PCI adapter card downloading Sun host system 108 installing Sun host system 108 JNI PCI fibre-channel adapter driver, installing 108 JNI SBUS adapter card downloading Sun host system 109 installing Sun host system 109 JNI SBUS fibre-channel adapter driver, installing 109 K Korean government Ministry of Communication (MOC) statement 182 L lengths cable 71 cable for SCSI 9 licensed internal code (LIC) agreement 183 limitations, SCSI host systems configuration 11 limited warranty statement 171 Linux host
NUMA-Q host system (continued) installing the IOC-0210-54 adapter card 56 locating the WWPN 155 performing a fibre-channel attachment 55 system requirements 56 O open-systems hosts fibre-channel 4 SCSI 4 operating system AIX 4 attaching hosts with the Microsoft Windows NT 121 attaching the IBM ESS to a Linux 83 attaching the IBM ESS to a Novell NetWare 91, 94 device recognition for Compaq 20 HP-UX 4 Microsoft Windows 2000 4 Microsoft Windows NT 4 Novell NetWare 4 OpenVMS 4 OS/400 4 ptx 4 Solaris 4 Tru64 UN
recycling, product xiii registry, setting the TimeOutValue for Windows 2000 141, 150 registry, setting the TimeOutValue for Windows NT 125, 134 related publications xviii replacing a prior version of the installation package for an RS/6000 and pSeries host system 58, 62 requirements for attaching multiple host systems hardware 64 software 64 for Hewlett-Packard, attachment 39, 41 for Novell NetWare, attachment 91 for NUMA-Q, attachment 55 for RS/6000 and pSeries fibre-channel attachment 61 for RS/6000 and p
storage area networks (SANs), fibre-channel 17 storage server restoring data 66 saving data 66 Subsystem Device Driver installing 102 Subsystem Device Driver (SDD) installing 117 Web site xxii subsystem emulation, 9337 46 summary of changes xv Sun host locating the WWPN 156 Sun host system attaching the ESS 99, 104 kernel, changing 105 mapping hardware 100 setting parameters 103, 118 support for 9032 Model 5 ESCON director FICON bridge feature, for S/390 and zSeries 70 switched-fabric topology description 1
Z zSeries. SeeS/390 and zSeries.
212 ESS Host Systems Attachment Guide
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