installation and reference guide HP MPIO Full Featured DSM for SAN Virtualization Services Platform 3.01.00 (5697-8031, March 2009)

2 Support for load balancing in Microsoft
Windows Server 2008 Failover
Cluster/Microsoft Windows 2003 Cluster
Server
In Windows Server 2008 Failover Cluster, loading balancing is supported and enabled by default
and cannot be turned off.
In Windows Server 2003 Cluster Server, only NLB is supported.
This section describes the following:
• Recovering inaccessible disk devices
Recovering inaccessible disk devices
If there is a stray reservation on a disk device, the device becomes inaccessible to the host systems
connected to it. This is because the strong reservation type (persistent reservations) supports load
balancing in clusters.
You can use the persistent reservations clear utility that comes with HP MPIO SVSP DSM package to
remove the stray reservations. For more information on how to use this utility, see HP MPIO SVSP
DSM persistent reservations clear utility.
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