Installation and Reference Guide for HP MPIO Full Featured DSM for XP family of Disk Arrays 3.00.00 (AA-RVJ6F-TE, March 2008)

CManagingMPIOdevicesusing
Microsof t-provid ed inter fa ces on
Windows Server 2008
This appendix describes how to manage MPIO d evices using the Microsoft-provided interfaces on
Windows Server 2008. Beginning with Microsoft Windows Server 2008, Multipath I/O (earlier called
MPIO framework) is provided as an operating system feature. Along with the feature, a few interfaces are
provided to enable you to manage the MPIO framework and devices. Microsoft also supplies an inbox
Microsoft DSM (MS DSM), which p rovides multipath support for SCSI-3 compliant disk devices.
This appendix addresses the following topic:
• Multipath I/O feature
• Managing multipath support
• Managing multipath disk devices
Multipath I/O feature
Multipath I/O feature enables the operating system to manage the d isk devices that support multipathing.
You must enable this feature before managing devices that support multipath. Installing the HP MPIO XP
DSM automatically enables the Multipath I/O feature.
Alternatively, you can enable this feature manually as follows:
1. Go to Serv
er M anager and select Features > Add Features. TheAddFeaturesWizardpage
displays.
2. Select Multipath I/O. The MPIO framework and MS DSM are installed, and the MPIO applet is
added to
the Control Panel.
Managing multipath s uppor t
Microsoft provides a Control Panel applet that enables you to manage multipath support for disk devices.
This interface allows users to enable or disable multipath suppor t for the selected devices, allows users to
install vendor-specificDSM,orboth.
To use the applet, go to Control Panel and select MPIO. The MPIO Properties page displays.
The MPIO Properties page includes the following tabs:
•MPIO-edDevices
• Discover Multi-paths
•DSMInstall
MPIO-
ed D evices
When initiated, the MPIO Properties page defaults to the MPIO-ed Devices tab. This tab displays the
Device Hardware IDs of the devices that supoprt multipathing and are currently ma naged by M PIO.
Figure 1 shows the M PIO Properties page with the M PIO-ed Devices tab enabled.
HP MPIO Full Featured DSM for XP family of Disk Arrays 3.00.00
41