HP StorageWorks XP Disk Array Configuration Guide for OpenVMS XP24000, XP12000, XP10000 Part number: A5951-96136 Eighth edition: June 2007
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Contents About this guide ................................................................................... 7 Intended audience ...................................................................................................................... 7 Related documentation ................................................................................................................ 7 Document conventions and symbols ...........................................................................................
A Disk array supported emulations ........................................................ 27 Supported emulations ................................................................................................................ 27 Emulation specifications ............................................................................................................ 28 Glossary ............................................................................................ 31 Index ................................
Figures 1..SNMP configuration ............................................................................................... 12 2..Multi-cluster environment ..........................................................................................
Tables 1..Document conventions ............................................................................................... 8 2..Microprocessor port sharing .................................................................................... 14 3..Fabric zoning and LUN security settings ..................................................................... 18 4..Error conditions ...................................................................................................... 24 5..
About this guide This guide provides information about: • Requirements and procedures for connecting an XP disk array to a host system • Configuring the disk array for use with the OpenVMS operating system Intended audience This guide is intended for system administrators with knowledge of: • The host hardware • OpenVMS operating system • XP disk arrays Related documentation The following documents [and websites] provide related information: • • • • • • HP StorageWorks XP10000 Disk Array HP StorageWorks
Document conventions and symbols Table 1 Document conventions Convention Element Blue text: Table 1 Cross-reference links and e-mail addresses Blue, underlined text: http://www.hp.
Conventions for storage capacity values HP XP storage systems use the following values to calculate physical storage capacity values (hard disk drives): • 1 KB (kilobyte) = 1,000 bytes • 1 MB (megabyte) = 1,0002 bytes • 1 GB (gigabyte) = 1,0003 bytes • 1 TB (terabyte) = 1,0004 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) = 1,0242 bytes • 1 GB (gigabyte) = 1,0243 bytes • 1 TB (terabyte) =
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1 Installing and configuring OpenVMS 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. Features and requirements Ask your HP service representative about the latest supported hardware and software.
Device emulation types The XP family of disk arrays supports these device emulation types: • OPEN-x devices: OPEN-x logical units represent disk devices. Except for OPEN-V, these devices are based on fixed sizes. OPEN-V is a user-defined size. Supported emulations include OPEN-3, OPEN-8, OPEN-9, OPEN-E, OPEN-L, and OPEN-V devices. • LUSE devices (OPEN-x*n): Logical Unit Size Expansion (LUSE) devices combine 2 to 36 OPEN-x devices to create expanded LDEVs larger than standard OPEN-x disk devices.
with XP Business Copy Software or XP Continuous Access Software, you use XP Remote Web Console, or XP Command View to designate at least one LDEV as a command device. Refer to the applicable user's guide for information about how to designate a command device. When creating a command device, HP recommends creating a LUN 0 device of 35 megabytes (the smallest allowed).
IMPORTANT: For optimal performance when configuring any XP disk array with a Tru64 host, HP does not recommend: • Sharing of CHA (channel adapter) microprocessors • Multiple host groups sharing the same CHA port NOTE: As illustrated in the following table, there is no microprocessor sharing with 8–port module pairs. With 16– and 32–port module pairs, alternating ports are shared. Table 2 Microprocessor port sharing Channel adapter Model Description Nr.
CAUTION: The correct host mode must be set for all new installations (newly connected ports) to OpenVMS hosts. Do not select a mode other than 05 for OpenVMS. Changing a host mode after the host has been connected is disruptive and requires the server to be rebooted. Setting the System Option Modes The HP service representative sets the System Option Mode(s) based on the operating system and software configuration of the host.
Fibre address In fabric environments, the port addresses are assigned automatically. Fabric and connection parameter settings Set each array port to FABRIC ENABLE with connections of POINT-TO-POINT (P-to-P). For detailed topology information, refer to the HP StorageWorks SAN Design Reference Guide. Installing and configuring the host Loading the operating system and software Follow the manufacturer's instructions to load the operating system and software onto the host and load all OS patches.
The list of adapters is displayed, showing fabric topology. Example P00>>>wwidmgr -show ada item adapter [ 0] pga0.0.0.8.1 [ 1] pgb0.0.0.10.1 [9999] All of the above. 5. WWN 1000-0000-c920-05ab 1000-0000-c921-0ce0 Cur. Topo FABRIC FABRIC Next Topo FABRIC FABRIC P00 >>> initialize NOTE: Since a different HBA family is used, Integrity servers do not require setting fabric topology.
Figure 2 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.
Connecting the disk array The HP service representative connects the disk array to the host by: 1. Verifying operational status of the disk array channel adapters, LDEVs, and paths. 2. Connecting the Fibre Channel cables between the disk array and the fabric switch or host. 3. Creating Fibre Channel zones connecting the host systems to the XP ports. Refer to your switch manufacturer's documentation for information on setting up zones. 4. Verifying the ready status of the disk array and peripherals.
Example For an XP LUN with a CU of 2 and an LDEV of 59: CU with LDEV appended = 259 259 hex = 601 decimal The example LUN is presented to OpenVMS as $1$dga601. Once all paths are defined, use the SYSMAN utility on each OpenVMS system in the SAN to discover the XP ports and LUNs just added.
$ init $1$dga100 testscsi Mounting the devices Use the mount command to mount and identify each disk array volume: Example $ mount $1$dga100 testscsi Verifying file system operation 1. Use the show device d command to list the devices: Example $ show device dg 2. Create a test user directory: Example $ create/directory $1$dga100:[user] This command creates a user directory name USER at the top level of the newly added volume $1$DGA100. 3.
6. Verify whether the file is created: Example $ directory Directory $1$DGA100:[USER] TEST.TXT;1 Total of 1 file. 7. Verify the content of the data file: Example $ type test.txt this is a line of text for the test file test.txt 8. Delete the data file: Example $ delete test.txt; $ directory %DIRECT-W-NOFILES, no files found $ type test.txt %TYPE-W-SEARCHFAIL,error searching for $1$DGA100:[USER]TEST.TXT; -RMS-E-FNF, file not found The delete command removes the test.txt file.
2 Troubleshooting This section includes 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 24.
Table 4 Error conditions Error condition Recommended action The logical devices are not recognized by the host. Verify the following: • The host mode is set correctly for the XP array. See “Setting the host mode for the disk array ports” on page 14. • The CU is between 0–31, AND LDEV is between 0–255. • The READY indicator lights on the disk array are ON. • The topology is set correctly for the HBA and that the Fibre Channel cables are properly connected.
Contact information Telephone numbers for worldwide technical support are listed on the HP support web site: http://www.hp.com/support/. Before you call Be sure to have the following information available: • • • • • • Technical support registration number (if applicable) Product serial numbers Product model names and numbers Applicable error messages Operating system type and revision level Detailed, specific questions For continuous quality improvement, calls may be recorded or monitored.
Troubleshooting
A 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.
Emulation specifications Table 6 Emulation specifications Emulation(Note 1) Category (Note 2) OPEN-3 SCSI disk OPEN-8 Blocks (512 bytes) Sector size (bytes) # of Cylinders 4806720 512 3338 SCSI disk 14351040 512 OPEN-9 SCSI disk 14423040 OPEN-E SCSI disk OPEN-L OPEN-V Heads Sectors per track Capacity MB*(Note 3) 15 96 2347 9966 15 96 7007 512 10016 15 96 7042 28452960 512 19759 15 96 13893 SCSI disk 71192160 512 49439 15 96 34761 SCSI disk max=125827200 512
Note 1: The availability of a disk type 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 device capacity can sometimes be changed by the BIOS or host adapter board. This may make actual capacity different from that listed in the table.
Example For a CVS LUSE volume with capacity = 37 MB and n = 4: # of cylinders = 37 × 1024/720 × 4 = 52.62 × 4 = 53 × 4 = 212 OPEN-V: The number of cylinders for a CVS LUSE volume =# of cylinders = (capacity (MB) specified by user) × 16/15 × n Example For an OPEN-V CVS LUSE volume with capacity = 49 MB and n = 4: # of cylinders = 49 × 16/15 × 4 = 52.26 × 4 = 53 × 4 = 212 Note 6: The capacity of an OPEN-3/8/9/E CVS volume is specified in MB, not number of cylinders.
Glossary 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). All RAID6 array groups are made up of 8 HDDs (6D+2P).
LUN 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. For example, a LUN associated with two OPEN-3 LDEVs has a size of 4,693 MB. LUSE A LUN is normally associated with only a single LDEV. The LUSE feature allows a LUN to be associated with 1 to 36 LDEVs.
XP Remote Web Console HP StorageWorks XP Remote Web Console. A browser-based program installed on the SVP that allows you to configure and manage the disk array.
Glossary
Index A arbitrated-loop physical address, 16 audience, 7 B boot(ing) HBA not configured on, 24 host does not boot, 24 storage not seen on adapter after, 24 C clustering, 17, 18 command device(s) designate at least one LDEV as a, 13 XP RAID Manager, 13 configuration device, 20 Fibre Channel ports, 15 HBAs, 16 host, 16 host mode, setting, 14 port, 15 System Option Mode, 15 console commands set def, 21 show default, 21 conventions document, 8 storage capacity values, 9 D device(s) configuration, 20 emulatio
help obtaining, 9 host bus adapters, see "HBAs", 11 host mode, setting, 14 host, configuration, 16 HP service representative tasks, 13 technical support, 9, 24 I installation connecting disk array, 19 HP service representative tasks, 13 overview, 13 procedures, 13 verify HBA card, 16 interface, Fibre Channel, 11 L LDEV(s) designate at least one as a command device, 13 logical volumes, cannot be created, 24 LUN(s) creating, 19 mapping, 19 security, 17, 18 M R related documentation, 7 S SCSI disk, Fibre
Z zoning, fabric, 17, 18 XP Disk Array Configuration Guide for OpenVMS 37
