Yesterday a colleague of mine was having some issues performing sVMotions on guests sitting in a development ESX 3.5 cluster. He kept getting an error along the lines of:
“IP address change for 10.x.x.x to 10.x.x.y not handled, SSL certificate verification is not enabled.”
They had changed the Service Console IP address of the host manually to perform some “secure” guest migrations previously (don’t ask me why – there’s always my way or the hard way), and basically the IP address of the host hadn’t been updated in the vxpa.cfg file. VMware has a 2-3 step process to reoslve the issue, which ultimately will require you to pull the host out of the cluster and re-add it to vCenter. It’s not a big deal, but it can be confusing when things seem to be working, but aren’t really. You can read more about it here.