We had a similar issue in our condition a couple of times also. On a couple of hosts, the firmware and driver overhaul reduced this issue - A "network stress test" consisting of copying a larger VMDK to another ESXi host from the SSH shell revealed whether the issue was remedied or not (usually the UE happened within 15 minutes). But on one server it was for sure an equipment mistake and since we had the NIC supplanted, these quit showing up. May IBM drivers help to get the solution easily because IBM have strong relation with this problem.
↧