We had a network problem that caused all my hosts connected to a distributed switch to to crash (PSOD). That crash took down my vCenter server too. After rebooting the hosts, HA kicked in and eventually everything came back up but in our management db where we track all the vms, we discovered that roughly 10 had changed their UUID (that I've found so far) which is a bit of a problem as we lose the link to the vm in vmware.
The storage was not affected by the problem so why would the vms change their uuid? I was directly connected to a few hosts after they came back up and saw on some hosts a few (a lot in some cases) of vms that were shown as inaccessible or the name of the VM changed to the path and was grayed out). Once everything settled down though there all vms were accessible just file and nothing was lost. The only problem was the uuid change and I can't figure out why some vms were affected but not others.
Any ideas?
Thanks
