Geert Baeke writes: "Creating a failover cluster with iSCSI disks is quite simple but there is one thing you need to be sure of: support for persistent reservations by your iSCSI target. I tried to create a failover cluster with iSCSI disks served off an OpenFiler target but that did not work.

But how do you know it will not work? Well, the good thing is thatWindows Server 2008 has a Cluster Validation tool that will tell you if your configuration is supported. Click the images below to see parts of the validation tool." (more)