This weekend a few VMs on a clusered ESX Dell 2950 lost networking for some reason. The console and VMotion were fine. The 2950 has 4 NICs. I have two for the console and VMotion. And I have two for the VMs. The VM networking is teamed into a Cisco 3750 gig switch. Looking at the host in question I'm missing one of the NICs for the VM network. Looking into that. Taking the host down and looking at the BIOS to see if the NICs are all present. I have activity lights on all NICs. Two of the NIC are on board and the other two are an add-in card. I used one NIC onboard for VMs and Another NIC from the add-in card. This way the VMs don't runn off the same networking hardware. It odd the one NIC showing for the VMs didn't pick up the load. Might be an issues on the Cisco 3750 but the other hosts are fine.
Leading me to understanding clusters. I was able to vmotion the VMs to a working host. The last one said it moved but it really didn't. tried again and it said it moved. But under summary it showed on the bad host. I had to remove it from inventory and add it on the good host to get it back up. Shouldn't the cluster sense and issue and try to move the VMs to a known good host instead of me needing to do it manually?
Craig