HP StorageWorks XP10000 - Disk Array User manual

HP StorageWorks
XP Disk Array Configuration Guide for VMware
HP XP24000 Disk Array
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HP XP20000 Disk Array
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HP XP12000 Disk Array
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HP XP10000 Disk Array
Abstract
This guide provides requirements and procedures for connecting an XP disk array to a host system, and for
configuring the disk array for use with the VMware operating system. This document is intended for system
administrators, HP representatives, and authorized service providers who are involved in installing, configuring,
and operating the HP XP storage systems.
Part number: A5951-96105
Fifth edition: January 2010

Legal and notice information
© Copyright 2007, 2010 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. Government under vendor's standard commercial license.
The information contained herein is subject to change without notice. The only warranties for HP products and services are set
forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as
constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
Acknowledgments
Microsoft, Windows, Windows XP, and Windows NT are U.S. registered trademarks of Microsoft Corporation.

Contents
1 Installing and configuring VMware for the XP disk array .......................... 7
Features and requirements ........................................................................................................... 7
Fibre Channel interface ............................................................................................................... 8
Device emulation types ................................................................................................................ 8
Failover ..................................................................................................................................... 8
SNMP configuration .................................................................................................................... 9
XP RAID Manager command devices ............................................................................................ 9
Installation roadmap ................................................................................................................... 9
Installing and configuring the disk array ...................................................................................... 10
Setting the host mode and host group mode for the disk array ports .......................................... 10
Setting the system option modes ........................................................................................... 11
Configuring the Fibre Channel ports ..................................................................................... 11
Fibre address .............................................................................................................. 11
Fabric and connection parameter settings ....................................................................... 12
Installing and configuring the host ............................................................................................... 12
Loading the operating system and software ........................................................................... 12
Installing and configuring the FCAs ..................................................................................... 12
Clustering and fabric zoning ................................................................................................ 12
Fabric zoning and LUN security for multiple operating systems ................................................. 13
Configuring VMware ESX Server .......................................................................................... 14
Connecting the disk array .......................................................................................................... 15
Defining the paths .............................................................................................................. 15
Setting up Virtual Machines (VMs) and guest operating systems ...................................................... 16
Setting the SCSI disk timeout value for Windows VMs ............................................................. 16
Sharing LUNs .................................................................................................................... 16
Selecting the SCSI emulation driver ....................................................................................... 19
2 Troubleshooting ............................................................................... 21
Error conditions ........................................................................................................................ 21
3 Support and other resources .............................................................. 23
Related documentation .............................................................................................................. 23
Conventions for storage capacity values ...................................................................................... 23
HP technical support ................................................................................................................. 23
Subscription service .................................................................................................................. 24
HP websites ............................................................................................................................. 24
Documentation feedback ........................................................................................................... 24
A Path worksheet ................................................................................ 25
B Disk array supported emulations ........................................................ 27
Supported emulations ................................................................................................................ 27
Emulation specifications ............................................................................................................. 27
XP Disk Array Configuration Guide for VMware 3

Glossary ............................................................................................ 31
Index ................................................................................................. 35
4

Figures
SNMP configuration .................................................................................................. 91
Host mode setting 01 (XP20000/XP24000 only) ........................................................ 102
Point-to-point fabric topology example ....................................................................... 123
Multi-cluster environment .......................................................................................... 134
XP Disk Array Configuration Guide for VMware 5

Tables
Fabric topology settings ........................................................................................... 121
Fabric zoning and LUN security settings ..................................................................... 142
Error conditions ...................................................................................................... 213
Worksheet ............................................................................................................. 254
Supported emulations .............................................................................................. 275
Emulation specifications ........................................................................................... 276
6

1 Installing and configuring VMware for the
XP disk array
You and the HP service representative each play a role in installation. The 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 the HP service representative.
Features and requirements
The disk array has the following features:
•Storage capacity: The storage capacity for each model is listed below:
Maximum FC portsMaximum CapacityMaximum drivesModel
224 4GB or 24 8GB2.27TB1152XP24000
48 4GB or 24 8GB472TB240XP20000
224 4GB454TB1152XP12000
48 4GB94.5TB240XP10000
48124TBExternalSVS 200
•Server support: VMware-supported processor
•Operating system support: For supported disk array microcode and OS versions, see the HP
StorageWorks Single Point of Connectivity Knowledge (SPOCK):
http://spock.corp.hp.com
Before installing the disk array, ensure the following requirements are met:
•Fibre Channel Adapters (FCAs): Install FCAs and all utilities and drivers. Refer to the adapter doc-
umentation for installation details.
•HP StorageWorks XP Remote Web Console.
NOTE:
HP does not support using HP StorageWorks XP Command View or HP StorageWorks XP Command
View Advanced Edition Software from an ESX Guest OS.
•HP StorageWorks XP Array Manager.
•Check with your HP representative for other XP software available for your system.
XP Disk Array Configuration Guide for VMware 7

Fibre Channel interface
The XP family of disk arrays and the SVS 200 support these Fibre Channel elements:
•Connection speeds of 1 Gbps, 2 Gbps, and 4 Gbps
•Short-wave non-OFC (open fiber control) optical interface
•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.
Device emulation types
The XP family of disk arrays and the SVS 200 support 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 based on a CVS device. 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. For example, an
OPEN-x LUSE volume created from ten OPEN-x volumes is designated as OPEN-x*10.
•CVS devices (OPEN-x CVS): Volume Size Configuration (VSC) defines custom volumes (CVS) that
are smaller than normal fixed-sized logical disk devices (volumes). (OPEN-V is a CVS-based custom
disk size that you determine. OPEN-L does not support CVS.) Although OPEN-V is a CVS-based
device, the product name in the SCSI inquiry string is OPEN-V opposed to the fixed size OPEN-
[389E] devices that appear as OPEN-x-CVS.
•LUSE (expanded) CVS devices (OPEN-x*n CVS): LUSE CVS combines CVS devices to create an
expanded device. This is done by first creating CVS custom-sized devices and then using LUSE to
combine from 2 to 36 CVS devices. For example, if three OPEN-9 CVS volumes are combined to
create an expanded device, this device is designated as OPEN-9*3-CVS. OPEN-V devices are
designated as OPEN-V*n (without CVS).
NOTE:
For the SVS 200, and the XP24000/XP20000/XP12000/XP10000 when connected to external
storage devices, HP recommends using OPEN-V as the emulation the array makes visible to the host.
This allows configuration of external storage LDEVs without losing data. Using any other emulation
may cause data loss in the external storage LUNs. For new deployments, OPEN-V should be chosen
because some features (such as HP StorageWorks XP Snapshot Software or HP StorageWorks XP
Continuous Access Journal Software) are only supported with OPEN-V.
For detailed information, see “Supported emulations”on page 27.
Failover
The disk arrays support many standard software products that provide host, application, or I/O path
failover and management.
Installing and configuring VMware for the XP disk array8

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 or XP Command View
Advanced Edition Software. Refer to the applicable user's guide for procedures.
Figure 1 SNMP configuration
.
XP RAID Manager command devices
HP StorageWorks XP RAID Manager manages HP StorageWorks XP Business Copy Software or HP
StorageWorks XP Continuous Access Software operations from a host server. To use RAID Manager
you must designate at least one LDEV as a command device. This can be done with Remote Web
Console or XP Command View Advanced Edition Software. Refer to the applicable user guide for
information about how to designate a command device.
Creating scripts to configure all devices at once may save you considerable time.
Installation roadmap
Perform these actions to install and configure the disk array:
1. Installing and configuring the disk array
•Setting the host mode and host group mode for the disk array ports
•Setting the system option modes
•Configuring the Fibre Channel ports
2. Installing and configuring the host
•Loading the operating system and software
•Installing and configuring the FCAs
•Clustering and fabric zoning
•Fabric zoning and LUN security for multiple operating systems
•Configuring VMware ESX Server
3. Connecting the disk array
•Defining the paths
XP Disk Array Configuration Guide for VMware 9

4. Setting up Virtual Machines (VMs) and guest operating systems
•Setting the SCSI disk timeout value for Windows VMs
•Sharing LUNs
•Selecting the SCSI emulation driver
Installing and configuring the disk array
The HP service representative performs these tasks:
•Assembling hardware and installing software
•Loading the microcode updates
•Installing and formatting devices
After these tasks are finished, you will use XP Remote Web Console, XP Command View Advanced
Edition Software, or XP Array Manager to complete the remaining tasks listed below. If you do not
have these programs, your HP service representative can perform these tasks for you.
Setting the host mode and host group mode for the disk array ports
After the disk array is installed, you must set the host mode for each host group that is configured on
a disk array port to match the host OS. Set the host mode using LUN Manager in XP Remote Web
Console (shown). If these are not available, the HP service representative can set the host mode using
the SVP. The host mode setting for VMware is 0C for the XP10000/XP12000 and 01 for the
XP20000/XP24000.
Figure 2 Host mode setting 01 (XP20000/XP24000 only)
.
CAUTION:
The correct host mode must be set for all new installations (newly connected ports) to VMware hosts.
Do not select a mode other than 0C (XP10000/XP12000) or 01 (XP20000/XP24000) for VMware.
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 (host mode options) may be configured.
The storage administrator must verify if an additional host group mode is required for the host group.
Installing and configuring VMware for the XP disk array10

IMPORTANT:
HP recommends selecting host group mode 19 (processing time for reserve commands during I/O
processing is shortened). Your HP representative will select host group mode 19 for you.
CAUTION:
Changing host group modes for ports where servers are already installed and configured 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. Notify your HP representative if you install storage agnostic software
(such as backup or cluster software) that may require specific settings.
Configuring the Fibre Channel ports
Configure the disk array Fibre Channel ports by using XP Remote Web Console (shown) or XP
Command View Advanced Edition Software. Select the settings for each port based on your storage
area network topology. Use switch zoning if you connect different types of hosts to the array through
the same switch.
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.
XP Disk Array Configuration Guide for VMware 11

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 table and figures. For detailed topology information, refer to the HP StorageWorks
SAN Design Reference Guide at:
http://www.hp.com/go/sandesign.
Figure 3 Point-to-point fabric topology example
.
Table 1 Fabric topology settings
ProvidesConnection parameterFabric parameter
NL-port (private arbitrated loop)FC-ALOFF
F-port (fabric port)Direct Fabric AttachON
Not supportedFC-ALON
Not supportedDirect Fabric AttachOFF
Installing and configuring the host
This section explains how to install and configure Fibre Channel adapters (FCAs) that connect the
host to the disk array.
Loading the operating system and software
Follow the manufacturer's instructions to load the operating system and software onto the host. Load
all OS patches and configuration utilities supported by HP and the FCA manufacturer.
Installing and configuring the FCAs
Install and configure the Fibre Channel adapters using the FCA manufacturer's instructions.
Clustering and fabric zoning
If you plan to use clustering, install and configure the clustering software on the servers.
Installing and configuring VMware for the XP disk array12

Clustering is the organization of multiple servers into groups. Within a cluster, each server is a node.
Multiple clusters compose a multi-cluster environment. The following example shows a multi-cluster
environment with three clusters, each containing two nodes. The nodes share access to the disk array.
Figure 4 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.
WARNING!
For OpenVMS —HP recommends that a volume be presented to one OpenVMS cluster or stand
alone system at a time. Volumes should not be presented to allow them to move between stand alone
systems and/or OpenVMS clusters, as this can lead to corruption of the OpenVMS volume and data
loss.
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:
•Storage port zones may overlap if more than one operating system needs to share an array port.
•Heterogeneous operating systems may share an XP array port if you use Secure Manager and set
the appropriate host group and mode. All others must connect to a dedicated XP array port.
XP Disk Array Configuration Guide for VMware 13

•Use Secure Manager for LUN isolation when multiple hosts connect through a shared array port.
Secure Manager provides LUN security by allowing you to restrict which LUNs each host can access.
Table 2 Fabric zoning and LUN security settings
LUN SecurityFabric ZoningOS MixEnvironment
Must be used when mul-
tiple hosts or cluster nodes
connect through a shared
port
Not required
homogeneous (a single OS type
present in the SAN)
Standalone SAN
(non-clustered)
Clustered SAN
Multi-Cluster SAN Required
heterogeneous (more than one OS
type present in the SAN)
Configuring VMware ESX Server
VMware ESX Server 2.5x
1. Open the management interface, select the Options tab, and then click Advanced Settings....
2. In the “Advanced Settings”window, scroll down to Disk.MaskLUN.
3. Verify that the value is large enough to support your configuration (default=8). If the value is less
than the number of LUNs you have presented then you will not see all of your LUNs. The maximum
value is 256.
Installing and configuring VMware for the XP disk array14

VMware ESX Server 3.0x
1. Open Virtual Infrastructure client and select the configuration tab, then select Advanced Settings.
2. In the left pane of the “Advanced Settings”window, select Disk, then scroll down to
“Disk.MaxLUN”.
3. Verify that the value is large enough to support your configuration (default=8). If the value is less
than the number of LUNs you have presented then you will not see all of your LUNs. The maximum
value is 256.
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. Verifying the ready status of the disk array and peripherals.
Defining the paths
Use XP Remote Web Console (shown) or XP Command View Advanced Edition Software to define
paths (LUNs) between hosts and volumes in the disk array.
This process is also called “LUN mapping.”In XP Remote Web Console and XP Command View,
LUN mapping includes:
•Configuring ports
•Enabling LUN security on the ports
•Creating host groups
•Assigning Fibre Channel adapter WWNs to host groups
•Mapping volumes (LDEVs) to host groups (by assigning LUNs)
In XP Command View Advanced Edition Software, LUN mapping includes:
•Configuring ports
XP Disk Array Configuration Guide for VMware 15

•Creating storage groups
•Mapping volumes and WWN/host access permissions to the storage groups
For details see the HP StorageWorks XP LUN Manager User’s Guide or the HP StorageWorks XP
Command View Advanced Edition Software Device Manager Web Client User’s Guide. Note the
LUNs and their ports, WWNs, nicknames, and LDEVs for later use in verifying host and device
configuration.
Setting up Virtual Machines (VMs) and guest operating systems
Setting the SCSI disk timeout value for Windows VMs
To ensure Windows VM’s (Windows 2000 and Windows Server 2003) wait at least 60 seconds for
delayed disk operations to complete before generating errors, you must set the SCSI disk timeout
value to 60 seconds by editing the registry of the guest operating system as follows:
CAUTION:
Before making any changes to the registry file, make a back up copy of the existing file.
1. Start the registry editor: select Start >Run, enter regedit.exe, and click OK.
2. In the directory tree in the left panel, select HKEY_LOCAL_MACHINE >System >CurrentControlSet
>Services >Disk.
3. In the right pane locate the DWORD entry “TimeOutValue.”and right click. Select Modify, then
set the data value to x03c (hexadecimal) or 60 (decimal).
NOTE:
If the DWORD “TimeOutValue”doesn't exist, click Edit > New> DWORD value and enter
the name “TimeOutValue.”
Sharing LUNs
To share LUNs between VMs within a single ESX server, set the SCSI controller to virtual mode. To
share LUNs across multiple ESX servers or in a virtual to physical configuration, set the SCSI controller
to physical mode.
Installing and configuring VMware for the XP disk array16

VMware ESX Server 2.5x
1. In the management interface, double-click the VM you plan to edit.
2. Click the Hardware tab, select the SCSI controller you will use for your shared LUNs, and then
click Edit....
XP Disk Array Configuration Guide for VMware 17

3. Select the Bus Sharing mode (virtual or physical) appropriate for your configuration, and then
click OK.
NOTE:
Sharing VMDK disks is not supported.
VMware ESX Server 3.0x
1. In VirtualCenter, select the VM you plan to edit, and then click Edit Settings.
Installing and configuring VMware for the XP disk array18

2. Select the SCSI controller for use with your shared LUNs.
NOTE:
If only one SCSI controller is present, add another disk that uses a different SCSI bus than
your current configured devices.
3. Select the Bus Sharing mode (virtual or physical) appropriate for your configuration, and then
click OK.
NOTE:
Sharing VMDK disks is not supported.
Selecting the SCSI emulation driver
Select the HP supported SCSI emulation driver for a guest OS as follows:
1. Windows
•For Windows 2000 use the BusLogic SCSI driver.
•For Widows 2003 use the LSI Logic SCSI driver.
2. Linux
•For the 2.4 kernel use the LSI Logic SCSI driver.
•For the 2.6 kernel use the BusLogic SCSI driver.
XP Disk Array Configuration Guide for VMware 19

Installing and configuring VMware for the XP disk array20