Saturday, October 10, 2009

MPIO errors, Windows 2008 cluster validation test failing and EMC Symmetrix

If you have ever tried to configure a Windows 2008 cluster using an EMC Symmetrix then you have probably come across this issue. If not then you might want to read on.
Windows 2008 uses Persistent SCSI reservations. The SCSI Reserve command and the SCSI Persistent Reserve command are specified by the SCSI standards. Servers can use these commands to prevent HBA ports in other servers from accessing the LUN.

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