We have a vSphere5 shop with ESXi5 hosts and vCenter5. I'm not familiar with version 5 so I rely on the existing administrators to get my information on how the group works virtualization projects.
Recently, I have discovered something I feel is very unusual...at least, from what I've seen in the past. Our ESX hosts have their system clocks updated by domain controllers that are virtual machines. I have never seen this before. Normally, I see ESX host use Atomic clocks directly vs other VMs under them that are being used as NTP servers. We have 3 Domain Controllers. One is a physical server and the other 2 are VMs. The PDC FSMO role resides on one of the VMs. Note: none of our VMs are syncing with the ESX hosts they are on. I don't see an issue with that since the hosts fall back to the VMs that are set to be NTP servers. It just seems odd to me and I wonder if some of our time synchronization issues across the Virtual Infrastructure is caused by this configuration.
Thanks