Did you end up determining the best method for preparing CIFS for the upgrade (Storage Failovers?).
I'm doing some planning and I'm thinking the exact same as yourself. A simple termination of a sessions doesn't do much, as the client sessions automatically establish again (say they have the CIFS share open in windows explorer).
I was thinking too that vserver cifs stop would be a good method. But does that gracefully terminate sessions? And after a SFO as part of the upgrade, does cifs need to be started again manually?
* Edit: I've done a little bit more digging. I found that the upgrade advisor is likely implying "cifs stop" should be utilised in the CIFS termination recommendation (but wish it would say that). I think this because of the following reasons:
- The "cifs session close" command guide doesn't mention the term "terminate" (or alike)
- The "cifs stop" command guide does mention "terminate":
- Back in the 7-Mode days, I would run a "cifs terminate" command prior to failover. That maps to "cifs stop" according to this:
However, I don't know if cifs automatically starts after a SFO in cDOT.