I currently have a 2 node A/P SQL 2008 Cluster running once instance on Server 2008 Ent. I have 3 disks that have been allocated for the instance (Data, Logs, Backups) I would like to add an additional instance to the cluster and utilize the same disks. Is this possible. I have tested this and noticed that once you have disks allocated in the Failover Cluster Manager. There is no way to allocate those same disks to a different resource? Any Help would be greatly appreciated.