One of our customers has physically reset (using the power button) their ESX server. Upon powering it back on, it looks to have reverted to an old snapshot (number of years ago). What is the likelihood of being able to get this back? What steps should I take to mitigate risk of losing the data since the snapshot was taken?
We do have a valid backup, but obviously booting into the valid state would be much better than having to restore the systems (2 VMs) from backup.
Also, can anyone offer any explanation to how this happened given there was no human intervention other than rebooting the server? It seems like a critical flaw in the design if the system boots into an old snapshot if the power is lot.
Thanks in advance.