I have a windows failover cluster running two 2008 R2 Servers on VMWare with backend storage on a Compellent SAN. Starting a few days ago, the shared witness disk is in a continual failure loop. It goes from online to offline tp pending in the space of 1 to 2 minutes and it does it continuously. I have run the validation tests with the disks offline and have no errors. The vmware servers are hosting other servers and none of those are having problems. SAN shows no errors, network shows no errors, and the only events I see indicate that the witness disk failed, but don't give any other information.
The only thing that changed recently is that the windows updates which were released on 8/24/10 were installed. I've done some searches but I am not finding any information. Nothing has been done because I don't know what to try.
VMWare servers are HP DL 380s with fiber connection via QLogix to the SAN, which is a Compellent 20 Series running version 4.5.3. Again, no other systems are showing errors. Is it possible that the Witness disk could be corrupt?