I’m preparing a Windows Server 2008 cluster on HP BL480C G1 blade servers with an EVA SAN. Windows 2008 clustering is EASY to set up … really easy. The restricted HCL for clusters is no more; instead you can use pretty much anything on the Windows Server 2008 HCL. You assemble the hardware, install the OS, install the failover cluster role and provision the network/storage. You then run the wizard for creating a cluster on a management node, e.g. a Vista SP1 or W2008 machine with the Failover Cluster (feature) tools installed. A scan checks the health of the config either saying that MS PSS will support the configuration or not. If you get a "yes" then you’re good to go.
I just did this to create a cluster. The first run failed with the error "Cluster Disk 0 does not support persistent reservation" in the storage set of checks. This refers to a change for Windows Server 2008 and how it handles shared storage. I did some googling and found where someone with an EVA SAN had identified their own fix on a forum thread. The solution was simple enough. In the EVA command view, you need to be sure that the nodes running Windows 2008 that are using the SAN are configured as "Microsoft Windows LH" (as in Longhorn, the codename for W2008) and not "Microsoft Windows". Rerun the test and you’ll find that you will get a pass for that test.