I needed to reboot a controller last night to clear a false error message regarding a new shelf installation. In the process I did a takeover, rebooted the controller, and then a giveback. Everything appeared to move between controllers as intended and I didn't have any immediate reports of any issues. Unfortunately, this morning I received a report of a hung Xen server that has an NFS datastore. I was under the impression that during a takeover/giveback you would lose CIFS sessions, but not NFS. Can someone verify please? I'd like to clarify if I made a mistake during this controller reboot or if something is not functioning correctly. Thanks!
Also bear in mind all the networking settings must be spot on, so the partner head can be accessed by the same host(s) - sounds simple, but I've seen many situations where it was a major stumbling block