I've done some research on Failover Clustering, more specifically the feature offered by Windows Server 2008. I'm aware that for a two node cluster to operate there needs to be centralized storage to which both nodes are connected to. Now the point of the failover cluster is to tolerate faults, but what doesn't make much sense is using a typical NAS, what happens if there is a fault with the NAS? How do you suggest this be combatted, with the use of two NAS? Why can't the nodes use the hard drives inside them? Thanks.