Over the past week or so, three of my virtual machines in VMware have been crashing. All VM's are Win2k3 Server. I have three ESX hosts (4.0 U2) connected to an EMC NX4 SAN. The datastores are NFS. The VM's are all on different hosts. I will notice that the servers randomly restart and come back up running chkdsk or will come up and have NTFS errors (event ID 55):
Description: The file system structure on disk is corrupt and unusable. Please run the chkdsk utility on the volume "Drive_letter:"
I have run chkdsk multiple times, but continue to have the same problems. All three problem servers are very active servers. Two SQL and one Exchange. Most of the time when the servers crash, data becomes corrupt or gets lost. Any ideas what would be causing the problems? Other VM's seem to be fine.