esxi 5.5 losing connection to datastore
Posted on 2013-12-31
We have setup a new vmware esxi 5.5 server for a client and are having a rather troublesome issue. The vm box seems to lose connection to the datastore about once a week, and the entire vm seems to freeze. This seems to happen in the middle of the night, with no warnings, the guest machines are all rather idle, and do not report any errors in the logs, other than the previous shutdown was unexpected.
We are still able to ping the quest boxes, and the vmware host.
The VMWare VSphere Client also becomes mostly unresponsive.
Any commands etc, seem to hang, and the last time this happened it hung on the scanning datastrores. The only way to recover is a hard reboot of the box, This however degrades our array and sets us up for a host of other issues.
There is no network attached storage, just the internal raid controller with 8 drives, 1 array is our working or primary data store, the other array is a mirrored backup array, and 1 hotspare.
1 VM Host ESXI 5.5
3ware 9650SE 8 Port controller w/ battery backup
1 Raid 5 Array <- Primary Data Store
1 Raid 1 Array <- Backup Data Store
4 Server 08 R2 Machines running:
1 DC/File server
1 Application Server
1 Remote Desktop Server
We have this setup running on a few servers with the same controller card, only difference is we went ahead and used ESXI 5.5 instead of ESXI 5.1. Maybe this was a real bad idea...
Any thoughts would be appreciated.