HP StorageWorks XP Disk Array Configuration Guide for NonStop XP24000, XP20000, XP12000, XP10000, XP1024, XP128 Part number: A5951–96223 Fourth edition: Setpember 2007
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Contents About this guide ................................................................................... 7 Intended audience ...................................................................................................................... 7 Related documentation ................................................................................................................ 7 Document conventions and symbols ...........................................................................................
Supported emulations ................................................................................................................ 23 Emulation specifications ............................................................................................................. 23 Glossary ............................................................................................ 25 Index .................................................................................................
Figures 1..SNMP Configuration ............................................................................................... 13 2..Point-to-point fabric topology example ....................................................................... 15 3..Direct attach without a SAN example ........................................................................
Tables 1..Document conventions ............................................................................................... 7 2..Fabric topology settings ........................................................................................... 16 3..Fabric zoning and LUN security settings ..................................................................... 17 4..Error conditions ...................................................................................................... 19 5..
About this guide This guide provides information about: • Requirements and procedures for connecting an XP disk array to a NonStop host system • Configuring the disk array for use with the NonStop operating system Intended audience This guide is intended for system administrators with knowledge of: • The host hardware • NonStop operating system • XP disk arrays Related documentation The following documents provide related information: • • • • • • • • • • HP StorageWorks HP StorageWorks HP StorageWorks HP
Convention Element 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 • File and directory names • System output • Code • Commands, their arguments, and argument values Monospace, italic text • Code variables • Command variables Monospace, bold text Emphasized monospace text CAUTION: Indicates that failure to follow dire
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) = 1,0244 bytes • 1 block = 512 bytes Graphical interface illustrations The GUI illustrations in this guide were created using a Windows computer with the Internet Explorer browser. Actual windows may differ depending on the operating system and browser used.
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1 Installing and configuring NonStop 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.
• • • • Short-wave non-OFC (open fiber control) optical interface Multimode optical cables with LC connectors Direct connect (PriNL) or fabric switch connect (N-port or DFA) 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. Device emulation types The XP family of disk arrays supports these device emulation types: • OPEN-x devices: OPEN-x logical units represent disk devices.
Figure 1 SNMP Configuration Installation roadmap Perform these actions to install and configure the disk array: 1. Install and configure the disk array 2. • Setting the host mode and host group mode • Setting the System Option Modes • Configuring the Fibre Channel ports Install and configure the host 3. • Loading the operating system and software • Installing and configuring the FCSAs • Fabric zoning and LUN security Connect the disk array 4.
CAUTION: The correct host mode must be set for all new installations (newly connected ports) to NonStop hosts. Do not select a mode other than 0C or 2C for NonStop. Changing a host mode after the host has been connected is disruptive and requires the server to be rebooted. When a new host group is added, additional host group modes (options) may be configured. The storage administrator must verify if an additional host group mode is required for the host group.
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. 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.
Figure 3 Direct attach without a SAN example Table 2 Fabric topology settings Fabric Parameter Connection Parameter Provides ON FC-AL Not supported ON Point-to-Point N-port (SAN fabric port) OFF FC-AL NL-port (private arbitrated loop; direct connect without a SAN) OFF Point-to-Point Not supported Installing and configuring the host This section explains how to install and configure the host and Fibre Channel ServerNet Adapters (FCSAs) that connect the host to the disk array.
• Do not connect other operating systems to the same XP ports or even use a port that shares a processor with the same port as NonStop systems. • Use SAN switches dedicated to NonStop connections, or solutions that have been qualified by HP. These HP-qualified solutions can include operating systems other than NonStop, but fabric zoning and LUN security must be used to isolate them from the NonStop systems.
In XP Command View Advanced Edition, LUN mapping includes: • Configuring ports • Creating storage groups • Mapping volumes and WWN/host access permissions to the storage groups For details, see HP StorageWorks XP LUN Manager User's Guide or XP Command View Advanced Edition Device Manager Web Client User's Guide. Record the LUNS and their ports, WWNs, nicknames, and LDEVs. This information will be used later to verify host and device configuration.
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 19.
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.
A Path worksheet Worksheet Table 5 Path worksheet LUN # CU:LDEV ID Array Group Emulation type Array Port Array Port WWN NSK Server name NSK SAC (G-M-S-S) NSK SAC WWN NSK volume name Path Example: 00 01:00 1-11 OPEN-E 1A 50060E80 /OSDNSK3 110-2-3-1 50060B00 $XPM001 P 0437B000 002716AC XP Disk Array Configuration Guide for NonStop 21
Path worksheet
B Disk array supported emulations This appendix provides information about disk array supported emulations and emulation 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]).
Note 1: The availability of an emulation depends on the disk array. Note 2: OPEN-V is a variable device type. The maximum configurable LDEV size depends on the RAID level and size of physical disks configured in the array. The minimum size is 46 MB. Note 3: The array capacity displayed by an operating system may be slightly different from the values listed. Note 4: NonStop supports LUSE and CVS. HP advises that reduced performance can occur with LUSE volumes.
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). All RAID6 array groups are made up of 8 HDDs (6D+2P).
LDEV Logical device. An LDEV is created when a RAID group is carved into pieces according to the selected host emulation mode (that is, OPEN-3, OPEN-8, OPEN-E). The number of resulting LDEVs depends on the selected emulation mode. The term LDEV is often used synonymously with the term volume. LUN Logical unit number. A LUN results from mapping a SCSI logical unit number, port ID, and LDEV ID to a RAID group.
the other as CU = 01 and LDEV = 00; they are two unique separate virtual storage devices within the XP array. VSC Volume size customization. Synonymous with CVS. WWN World Wide Name. A unique identifier assigned to a Fibre Channel device. XP Command View HP StorageWorks XP Command View, a software product for managing XP arrays. XP Command View runs on a Windows-based management workstation.
Glossary
Index A arbitrated-loop physical address, 15 audience, 7 C clustering, 16 configuration device, 18 emulation types, 12 FCSAs, 16 Fibre Channel ports, 14 host, 16 port, 14 conventions document, 7 storage capacity values, 8 D device(s) configuration, 18 emulation types, 12 logical, not recognized by host, 19 type specifications, 23 verifying recognition, 18 disk array(s) connecting, 17 features, 11 installation overview, 13 Not Ready error message, 19 operating system versions, 11 requirements, 11 storage c
L V logical volumes, cannot be created, 19 LUN(s) creating, 17 mapping, 17 security, 16 volume(s) logical, cannot be created, 19 physical, cannot be created, 19 O operating system(s) loading, 16 LUN security for, 16 multiple, fabric zoning for, 16 supported versions, 11 P path(s) defining, 17 physical volumes, cannot be created, 19 port(s) address, 15 Fibre Channel, 14 R related documentation, 7 Remote Web Console XP, 13 S SCSI disk, Fibre Channel interface and term "SCSI disk", 12 Secure Manager XP,
