I have a two node Windows 2008 R2 Failover Cluster with only the File Services Role. There are multiple disks on this server, presented by an EMC storage array via FC. I would like to remove one disk that is no longer in use. The disk is currently in available storage in the cluster and is in an offline state. The dependency report for the disk shows no required dependencies, no 'AND' relationship, no child resources, and no 'OR' relationship.
When I attempt to remove the disk from available storage I receive the warning "This resource has other resources which depend on it. Deleting it will cause those resource to go offline. Are you sure you want to delete Cluster Disk #?"
How can I determine what resources are dependent upon this disk when the report shows no dependencies? And, since the disk is in an offline state and in available storage, if there are dependencies how are they not in a failed or offline state as well?