Hi, I have 9 ESX hosts running in three different clusters. Two clusters are HP DL385 G2's and one cluster is HP DL385 G5 hardaware. A week or so ago I noticed my test cluster and my G5 hardware cluster had issues where the Host would become unreachable from Vcen and the VM's running would drop out - the host would stay pingable and none of the VM's would online a A N other host in the cluster. Connecting to the host console it was slow, you could log on but not re-boot using F11 it would just sit there.
Thought issue might be due to USB sticks provided by HP as there is an issue with them, so HP replaced them all for me. All test boxes and G5 hosts were running U4, but had only been running for a short period of time. As I was replacing the USB's in all hosts apart from one in the production cluster (already replaced a few weeks ago) I though I would apply Update 4 and latest patches from Update Manager. Now all Hosts running U4 have at some point failed in the same way as above - can't figure out what's going on. Have logged call with VMWare but only Gold support (platinum next week I think) so when two hosts failed over the weekend it doesn't look good - latest ESXi U4 patches don't seem to have fixed the issue either... doh!
Anyone seem this before, or having the same issue while I wait on support? Different hardware so it must be a bug that's come with update 4... that one host that is still running U3 hasn't even twitched - so if all else fails I will have to back rev to the same version.
Cheers
