HP P2000 HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S
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- HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 1
HP StorageWorks MSA System MPIO DSM Installation Guide Part number: 590337-005 First edition: September 2010 - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 2
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. Acknowledgements Microsoft and Windows are U.S. registered trademarks of Microsoft - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 3
2003 to Windows 2008 6 Installing and Configuring the Windows Server 2008 MPIO DSM for HP StorageWorks P2000 G3 systems 6 Installing on Windows Server 2008 Prior to R2 6 Installing on Windows Server 2008 R2 7 Installing and Configuring the Windows Server 2008 MPIO DSM for HP StorageWorks MSA2000 - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 4
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See "Installing and Configuring the Windows Server 2008 MPIO DSM for HP StorageWorks P2000 G3 systems" on page 6. • If you are using Windows Server 2003 and the MSA2012i Modular Smart Array (iSCSI), the required MPIO DSM is included in the Microsoft iSCSI Software Initiator. Note that the MSA System - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 6
host. Installing and Configuring the Windows Server 2008 MPIO DSM for HP StorageWorks P2000 G3 systems Perform the following steps to install and configure the native MPIO DSM included with Windows Server 2008. Installing on Windows Server 2008 Prior to R2 1. If you are installing for HP P2000 G3 - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 7
Server 2008 R2 Microsoft has deprecated servermanagercmd for Windows Server 2008 R2 so you will use the ocsetup command instead. 1. Open a command prompt window and run the following command: ocsetup MultipathIo /norestart mpclaim -n -i -a HP StorageWorks MSA System MPIO DSM Installation Guide 7 - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 8
to diagnose and troubleshoot the DSM. After initial installation of the MPIO DSM, use Device Manager to verify that it has installed correctly. If the MPIO DSM was installed correctly, each P2000 and G3 MSA2000 storage volume visible to the host will be listed as a multi-path disk drive as shown in - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 9
Server 2003 This section describes how to install and configure the MSA System MPIO DSM for Windows Server 2003. Information about using the MPIO command-line utility is included for advanced users who might want to change existing parameters. HP StorageWorks MSA System MPIO DSM Installation Guide 9 - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 10
not supported. So the server recognizes the HP StorageWorks G3 P2000 G3 MSA System FC/iSCSI storage system as either an FC or iSCSI system but not both. Installation Requirements The MPIO DSM requires the following software: • Windows Server 2003 (Service Pack 2) Downloading the MSA System MPIO DSM - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 11
. See "policies" on page 14 for a list of currently supported load balance policies. • all policy sets the load balance policy of all devices. • SerialNumber {failback on | failback off} sets the failback status of the specified device. HP StorageWorks MSA System MPIO DSM Installation Guide 11 - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 12
You can enable or disable the failback feature for a device. By default, failback is enabled when the device is in FailOver mode.elp. Example -01 Weighted 2 N/A 4 3869DE12-01 Weighted 2 N/A pathinfo The pathinfo command displays path information or enables you to change the status of the path - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 13
path is active and can perform the I/O operation. Primary: True = active • Standby - The path will perform the I/O operation if the active path fails. Primary: False = standby • Failed - You can fail the path to simulate the physical error. HP StorageWorks MSA System MPIO DSM Installation Guide 13 - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 14
command displays the currently supported load balance policies. Each LUN can have its own load balance policy. Possible values include the following: • FailOver - No load balancing is performed round-robin fashion. • RoundRobinWithSubset - In configurations where some I/O paths are faster than others - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 15
02010104 0 true 02000104 10000000C92F464E 217000C0FF0A4052 Online 193536 1871360 93 1752 weight The weight command sets the weight of the specified path. I/O is sent to the path the assigned weight. The recommended weight range is 0-100. HP StorageWorks MSA System MPIO DSM Installation Guide 15 - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 16
weight command is valid only when the weighted load balance policy is available (see "policies" on page 14 for the list of currently supported load 55 23 mpiolist The mpiolist command displays specified MPIO WMI objects. It shows the information of the local host only. mpiolist WMI_object where: - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 17
better support for SAN and multipath configurations. The pgr command shows whether the DSM is currently using SCSI-3 Persistent commands and the PGR key. If the pgr command is enabled, the DSM uses SCSI-3 Persistent commands. If the command is HP StorageWorks MSA System MPIO DSM Installation Guide - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 18
specifies that the DSM use SCSI-2 Reserve and Release commands pgr list The pgr list command displays the current persistent reservation status for all disk drives as seen by the current host. This information is used by service technicians when troubleshooting a problem. Example dsmcli> pgr - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 19
MSA DSM on node A by following the steps in Installing and Configuring the Windows Server 2008 MPIO DSM for HP StorageWorks P2000 G3 systems on page 6, Installing and Configuring the Windows Server 2008 MPIO DSM for HP StorageWorks MSA2000 G1 and G2 systems on page 7, or "Installing the MPIO Drivers - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 20
, and then uninstall the MSA System MPIO DSM package. Microsoft MPIO Driver Subsystem • Uninstalling the DSM does not always work. Workaround: Reboot your system to remove the DSM. • During MPIO installation, the call to UpdateDriverForPlugAndPlayDevices restarts the disk stacks. However, if MPIO - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 21
of 90 seconds. • If you are using an iSCSI connection to a Windows server running MPIO, use a value of 300 seconds. For more information, refer to Configuring MPIO Timers at: http://technet.microsoft.com/en-us/library/ee619749%28WS.10%29.aspx HP StorageWorks MSA System MPIO DSM Installation Guide 21 - HP P2000 | HP StorageWorks MSA System MPIO DSM Installation Guide (590337-005, S - Page 22
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HP StorageWorks
MSA System MPIO DSM
Installation Guide
Part number: 590337-005
First edition: September 2010