- There was an issue reported earlier in vSphere 5.5 U1 where NFS APD was reported intermittently.
- kb related to the issue:
http://kb.vmware.com/2076392
- This lead to BSODs on Windows VM and read only file systems on linux VMs.
- vobd logs at /var/log showed the below entries:
YYYY-04-01T14:35:08.074Z: [APDCorrelator] 9413898746us: [vob.storage.apd.start] Device or filesystem with identifier [12345678-abcdefg0] has entered the All Paths Down state.
YYYY-04-01T14:35:08.075Z: [APDCorrelator] 9414268686us: [esx.problem.storage.apd.start] Device or filesystem with identifier [12345678-abcdefg0] has entered the All Paths Down state.
YYYY-04-01T14:36:55.274Z: No correlator for vob.vmfs.nfs.server.disconnect
- VMware was on top of this issue and have released a patch for this issue to resolve it.
Please find the kb article for the patch fix:
http://kb.vmware.com/kb/2077360