DC gets 2 hours ahead during snapshot

[DCourtel]

Hi all, we have add memory to our ESX, we see that our Domain Controler get 2 hours ahead when the snapshtop start.

- At 00h30 the policy on VeeamBackup start, it backup some servers.
- At 02h00 it is the turn of our DC to be saved. Snapshot services start (VeeamVssSupport, Microsoft Software Shadow Copy Provider)
- The serveur clock display 2 hours ahead
- The backup finish some minutes after
- Snapshot services stop
- The clock on the server is ok.

Can someone help us ?

Thanks.

[Vitaliy S.]

Could you please tell me what happens if you snapshot this VM manually using vSphere Client? Also do you see the same behavior if you trigger a VSS snapshot inside the guest OS (DC VM)?

[DCourtel]

Hi Vitaliy, thanks for your quick answer.
Good question. I've test, and effectively the server get 2 hours ahead when making a snapshot. when the snapshot is in place the clock go back. And when I remove the snapshot the clock go 2 hours ahead again and back to normal once the snapshot is removed.
I also try on server that is not a DC. Same issue.

[Vitaliy S.]

That's exactly what I've thought. Check the time settings on your ESX(i) server and consider using NTP. I bet that the reported time on your hosts will also be 2 hours ahead.

[DCourtel]

Many thanks for your help Vitaliy. We have solved our issue by reconfiguring time settings on our ESX.