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HP XP20000/XP24000 Configuration Manual

Hp storageworks xp disk array configuration guide for linux xp24000, xp20000, xp12000, xp10000, svs 200 (a5951 - 96097, septembe
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HP StorageWorks

XP Disk Array Configuration Guide for Linux

XP24000, XP20000, XP12000, XP10000,
SVS 200
Part number: A5951–96097
Tenth edition: September 2007

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Table of Contents
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  Summary of Contents for HP XP20000/XP24000

  • Page 1: Xp Disk Array Configuration Guide For Linux

    HP StorageWorks XP Disk Array Configuration Guide for Linux XP24000, XP20000, XP12000, XP10000, SVS 200 Part number: A5951–96097 Tenth edition: September 2007...
  • Page 2 Legal and notice information © Copyright 2003, 2007 Hewlett-Packard Development Company, L.P. Confidential computer software. Valid license from HP required for possession, use or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S.
  • Page 3: Table Of Contents

    Contents Preface ....................7 About this guide ......................... 7 Intended audience ........................7 Related documentation ........................ 7 Document conventions and symbols ....................7 Conventions for storage capacity values ..................8 Graphical interface illustrations ..................... 9 HP technical support ........................9 Subscription service ........................
  • Page 4 2 Troubleshooting ................25 Error conditions ........................25 Calling the HP support center ..................... 26 Contact information ......................26 Before you call ........................26 A Path worksheet ................27 Worksheet ..........................27 B Disk array supported emulations ............29 Supported emulations ........................ 29 Emulation specifications ......................
  • Page 5: Xp Disk Array Configuration Guide For Linux

    Figures ..SNMP configuration ....................13 ..Simple point-to-point fabric topology example ............16 ..Multi-cluster environment ..................18 XP Disk Array Configuration Guide for Linux...
  • Page 6 Tables ..Document conventions ....................7 Host group mode (option) ..................15 ..Fabric topology settings ................... 16 ..Fabric zoning and LUN security settings ..............18 ..Error conditions ...................... 25 ..Path worksheet ....................... 27 ..Supported emulations ..................... 29 ..Emulation specifications ................... 30...
  • Page 7: Preface

    Preface About this guide This guide provides information about: • Requirements and procedures for connecting an XP disk array or SVS 200 to a host system • Configuring the disk array for use with the Linux operating system Intended audience This guide is intended for system administrators with knowledge of: •...
  • Page 8: Conventions For Storage Capacity Values

    Convention Element Blue, underlined text: http://www.hp.com Website addresses Bold text • Keys that are pressed • Text typed into a GUI element, such as a box • GUI elements that are clicked or selected, such as menu and list items, buttons, tabs, and check boxes Italic text Text emphasis Monospace text...
  • Page 9: Graphical Interface Illustrations

    • 1 TB (terabyte) = 1,000 4 bytes HP XP storage systems use the following values to calculate logical storage capacity values (logical devices): • 1 KB (kilobyte) = 1,024 bytes • 1 MB (megabyte) = 1,024 2 bytes • 1 GB (gigabyte) = 1,024 3 bytes •...
  • Page 10: Documentation Feedback

    Documentation feedback HP welcomes your feedback. To make comments and suggestions about product documentation, please send a message to storagedocsFeedback@hp.com. All submissions become the property of HP. Preface...
  • Page 11: Installing And Configuring Linux For The Xp Disk Array

    1 Installing and configuring Linux for the XP disk array You and your HP service representative each play a role in installation. Your HP service representative is responsible for installing the disk array and formatting the disk devices. You are responsible for configuring the host server for the new devices with assistance from your HP service representative.
  • Page 12: Device Emulation Types

    • Multimode optical cables with SC or LC connectors • Public or private arbitrated loop (FC-AL) or direct fabric attach • Fibre Channel switches Even though the interface is Fibre Channel, this guide uses the term “SCSI disk” because disk array devices are defined to the host as SCSI disks.
  • Page 13: Snmp Configuration

    SNMP configuration The XP family of disk arrays and the SVS 200 support standard Simple Network Management Protocol (SNMP) for remotely managing arrays. The SNMP agent on the service processor (SVP) performs error-reporting operations requested by the SNMP manager. SNMP properties are usually set from the SVP but they can also be set remotely using XP Remote Web Console, XP Command View (XP arrays only), or XP Command View Advanced Edition Software.
  • Page 14: Installing And Configuring The Disk Array

    • Creating the file systems • Creating the mount directories • Creating the mount table • Verifying file system operation Installing and configuring the disk array The HP service representative performs these tasks: • Assembling hardware and installing software • Loading the microcode updates •...
  • Page 15: Configuring The Fibre Channel Ports

    The following host group mode (option) is available for : Table 2 Host group mode (option) Host Function Default Comments Group Mode Reporting Unit Attention when adding LUN Inactive Previously MODE249 CAUTION: Changing host group modes for ports where servers are already installed and configured is disruptive and requires the server to be rebooted.
  • Page 16: Fabric And Connection Parameter Settings

    Fabric and Connection parameter settings Set each array port to FABRIC ON or OFF with connections of POINT-TO-POINT or FC-AL as shown in the following figures and table. For detailed topology information, refer to the HP StorageWorks SAN Design Reference Guide at http://www.hp.com/go/sandesign.
  • Page 17: Fibre Address

    Fibre address In fabric environments, the port addresses are assigned automatically. In arbitrated loop environments, set the port addresses by selecting a unique arbitrated loop physical address (AL-PA) or loop ID for each port. For specific values, refer to the HP StorageWorks XP LUN Manager User's Guide applicable to your array.
  • Page 18: Fabric Zoning And Lun Security For Multiple Operating Systems

    Figure 3 Multi-cluster environment Within the Storage Area Network (SAN), the clusters may be homogeneous (all the same operating system) or they may be heterogeneous (mixed operating systems). How you configure LUN security and fabric zoning depends on the operating system mix and the SAN configuration. Fabric zoning and LUN security for multiple operating systems You can connect multiple clusters of various operating systems to the same switch and fabric using appropriate zoning and LUN security as follows:...
  • Page 19: Restarting The Linux Server

    Restarting the Linux server To recognize the new device(s), restart the Linux server as follows: Power on the display of the Linux server. Power on all devices other than the Linux server. Confirm ready status of all devices. Power on the Linux server. Verifying new device recognition Verify that the FCA driver is installed using the lsmod command.
  • Page 20: Defining The Paths

    7211520 7173022 sdg1 17776560 cciss/c0d0 168200 352184 4166792... 257024 cciss/c0d0p1 1 1048560 cciss/c0d0p2 2 16470960 cciss/c0d0p3 168193 352166 4166736... In the above example, the “sd” devices represent the XP disk partitions and the “cciss” devices represent the internal hard drive partitions on an HP Proliant system. Defining the paths Use XP Remote Web Console (shown), XP Command View (XP arrays only), or XP Command View Advanced Edition Software to define paths (LUNs) between hosts and volumes in the disk array.
  • Page 21: Configuring Disk Array Devices

    Configuring disk array devices Disks in the disk array are configured using the same procedure for configuring any new disk on the host. This includes the following procedures: Partitioning the devices Creating the file systems Creating the mount directories Creating the mount table Verifying file system operation Creating scripts to configure all devices at once may save you considerable time.
  • Page 22: Creating The Mount Directories

    Repeat step 1 for each device on the disk array. Creating the mount directories Create mount directories using the mkdir command. Choose names for the mount directories which identify both the logical volume and partition. Enter mkdir /mnt/mount_point. Example # mkdir /mnt/A5700F_LU00 Repeat step 1 for each device on the disk array.
  • Page 23: Verifying File System Operation

    Reboot the system. Display the mounted devices using the df –h command and verify that the devices were automounted. Example # df -h Filesystem Size Used Avail Used% Mounted on /dev/sda1 1.8G 890M 866M /dev/sdb1 1.9G 1.0G 803M /usr /dev/sdc1 2.2G 13k 2.1G /A5700F-LU00...
  • Page 24 Installing and configuring Linux for the XP disk array...
  • Page 25: Troubleshooting

    2 Troubleshooting This section provides resolutions for various error conditions you may encounter. If you are unable to resolve an error condition, ask your HP support representative for assistance. See “Calling the HP support center” on page 26. Error conditions Depending on your system configuration, you may be able to view error messages (R-SIMS) as follows: •...
  • Page 26: Calling The Hp Support Center

    Error condition Recommended action The disk array performs a self reboot Reboot the host. because the disk array was busy or it logged a panic message. The disk array responds “Not Ready” Contact HP. or the disk array has displayed “Not Ready”...
  • Page 27: A Path Worksheet

    A Path worksheet Worksheet Table 6 Path worksheet LDEV (CU:LDEV) (CU = Device Type SCSI Bus Path 1 Alternate Paths control unit) Number 0:00 TID: TID: TID: LUN: LUN: LUN: 0:01 TID: TID: TID: LUN: LUN: LUN: 0:02 TID: TID: TID: LUN: LUN:...
  • Page 28 Path worksheet...
  • Page 29: B Disk Array Supported Emulations

    B Disk array supported emulations This appendix provides information about supported emulations and device type specifications. Some parameters may not be relevant to your array. Consult your HP representative for information about supported configurations for your system. Supported emulations HP recommends using OPEN-V as the emulation for better performance and features that may not be supported with the legacy emulations (OPEN-[389LE]).
  • Page 30: Emulation Specifications

    Emulation specifications Table 8 Emulation specifications Emulation Category Product name Blocks Sector # of Heads Sectors Capacity size (Note 1) (Note 2) (Note 3) (512 bytes) cylinders (Note 4) (bytes) track OPEN-3 SCSI disk OPEN-3 4806720 3338 2347 OPEN-8 SCSI disk OPEN-8 14351040 9966...
  • Page 31 The value n is the number of volumes combined together. For example, with 8 combined volumes: OPEN-V*8. Note 1: The availability of an emulation depends on the disk array. Note 2: The devices are defined to the host as SCSI disk devices, even though the interface is Fibre Channel. Note 3: The command device (used for XP Raid Manager) is distinguished by -CM on the product name (for example, OPEN-3-CM, OPEN-3-CVS-CM).
  • Page 32 OPEN-3/8/9/E: The number of cylinders for a CVS LUSE volume = # of cylinders = (capacity (MB) specified by user) × 1024/720 × n Example For a CVS LUSE volume with capacity = 37 MB and n = 4: # of cylinders = 37 ×...
  • Page 33: Glossary

    Glossary AL-PA Arbitrated loop physical address. array group A group of 4 or 8 physical hard disk drives (HDDs) installed in an XP disk array and assigned a common RAID level. RAID1 array groups consist of 4 (2D+2D) or 8 HDDs (4D+4D). RAID5 array groups include a parity disk but also consist of 4 (3D+1P) or 8 HDDs (7D+1P).
  • Page 34 OPEN-E). The number of resulting LDEVs depends on the selected emulation mode. The term LDEV is often used synonymously with the term volume. Logical unit number. A LUN results from mapping a SCSI logical unit number, port ID, and LDEV ID to a RAID group. The size of the LUN is determined by the emulation mode of the LDEV and the number of LDEVs associated with the LUN.
  • Page 35 Volume size customization. Synonymous with CVS. World Wide Name. A unique identifier assigned to a Fibre Channel device. XP Command HP StorageWorks XP Command View, a software product for managing XP View arrays. XP Command View runs on a Windows-based management workstation. XP Command HP StorageWorks XP Command View Advanced Edition Software, installs on View Advanced...
  • Page 36 Glossary...
  • Page 37: Index

    Index disk array(s) connecting, 18 adapters, Fibre Channel , 17 device emulations, 29 arbitrated-loop physical address, 17 features, 11 audience, 7 installation overview, 13 Not Ready error message, 26 operating system versions, 11 requirements, 11 clustering, 17 self reboots, 26 command device(s) server support, 11...
  • Page 38 file system(s) operating system(s) creating, 21 loading, 17 not mounted after rebooting, 25 LUN security for, 18 verifying, 23 multiple, fabric zoning for, 18 supported versions of Linux, 11 glossary, 33 parity error, 26 path(s) defining, 20 help worksheet, 27 obtaining, 9 physical volumes, cannot be created, 25...
  • Page 39 websites HP Subscriber's Choice for Business, 9 product manuals, 7 worksheet, path, 27 XP Array Manager, 11, 14, 20 XP arrays storage capacity, 11 XP Business Copy Software, 13 XP Command View, 11, 13, 14, 20 XP Command View Advanced Edition Software, 11, 13, 14, 20 XP Continuous Access...