I am seeing an issue with our HS22's after an upgrade from 4.1 to 5. Out of the 8 we have 2 of them will disconnect from VCenter about once a week. When the host disconnects it is not initiating a HA reposonse and move the VM's. VM's will continue to run as normally on the disconnected unless I attempt to log into the ESXI 5 console. Loging into the ESXI console will hard lock the host and drop the VM's. Host logs display the following error.
linscsi: SCSILinuxAbortCommands: 1798: Failed, Driver MPT SAS Host, for vmhba0
So far we have tried the following.
1. Full hardware update of all HS22 firmware including the LSI controller and the IBM Online SAS.
2. Found and updated LSI drivers on the ESXI host
3. Blew away the two failing host and re-installed a fresh copy ESXI 5
I have verified that the HS22 and all hardware is listed on the compatibility list. IBM also list ESXI 5 as supported on the HS22.
So far since wiping and reloading ESXI 5 we have been up and running about week without failure. I just wanted to drop a line here and see if anyone else is seeing this on HS22's and has found a solution I have not listed.