topic Question about takeover/giveback and cifs/nfs in Network and Storage Protocols

Question about takeover/giveback and cifs/nfs

adamgross — Thu, 05 Jun 2025 06:47:57 GMT

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!

Question about takeover/giveback and cifs/nfs

rwelshman — Wed, 17 Aug 2011 08:07:50 GMT

I would recommend checking the disk timeout on the Xen Server - if it is too small, it would notice the delay during the failover / giveback process and cause an issue.

Question about takeover/giveback and cifs/nfs

radek_kubka — Wed, 17 Aug 2011 08:50:43 GMT

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

Regards,

Radek

Re: Question about takeover/giveback and cifs/nfs

FLECHABUS — Tue, 10 Sep 2013 16:55:16 GMT

I have been on the same situation, but i had seen that in the normal situation a 1-3 second interruption is normal!

Prepare the XEN to resist that and you will be fine!