Hello, I have researched this already, but just wanted some confirmation before going through the motions as this is not a task we regularly perform. We moved all of our clustered instances' tempdb files to a local (non-shared) fusion IO drive on our existing active-passive 2-node cluster. The task now is to simply remove the Mount Point shared LUN from the cluster to give back the LUN to the Storage team. Below are the steps we plan to take. For those who do this task more regularly, do they look accurate? Thanks!
Step 1 - From Failover Cluster Manager on one of the nodes: Remove the tempdb drive dependency from the Sql Server Service for each clustered instance - Roles> Select One> Resources > Select the Sql Service at bottom > Rt click Properties > Dependencies > Find the dependency > OK Repeat for remaining clustered instances.. Step 2 - Take the disk OFFLINE or Maintenance Mode in FCM before doing step 3 Step 3 - From Failover Cluster Manager on one of the nodes: Remove the tempdb drive’s visibility to the Sql Server cluster - Roles> Select One> Resources > Select the Sql Service at bottom > Rt click > Remove from SQL Server (instancename)> should show Available Storage at this point Repeat for remaining clustered instances..