10. Improved maintenance mode for disk resources. Need to take a snapshot of a disk or run chkdsk? Now the cluster will allow you to keep the resource online but unavailable for client use. What this means? No more downtime or reboots to do disk maintenance.

9. No more cluster HCL. We got rid of it. Now, the ball is in the customers court. Rather than the complicated process of having a vendor submit a solution as a whole out of cluster parts, the installation of cluster in 2008 now includes a validation test you run before you install the cluster feature. This test checks everything (storage, network, servers). As long as you have purchased hardware that's logo'ed for Windows 2008, and the validation test passes....you have a supported cluster.

8. Cluster nodes can now obtain their IP addresses from DHCP servers. There's no longer a requirement for clusters to have static IPs.

7. We now track cluster disks by 2 attributes, not just one. What this means...? No more disk failures due to signature changes. If a disk signature does change, we check another unique attribute of the disk to verify it's the correct disk and we "self heal". User never sees a thing. This is huge. Disk signature issues were easily one of our top supportability issues with NT4.0, 2000, and 2003.

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