[SOLVED] New very nice feature --> hibernate, how can do that with windows and right ntp?

fireon

Distinguished Member
Oct 25, 2010
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Hello all,

using the new hibernate feature in 5.4 let go windows in trouble with time, because it need hours to sync the time afer Resume a Window VM. Tested with Windows10. Normaly the vmgenid should trigger an ntpsync after resume right? If i go in windows to ntp and sync manualy then it works immediately. So is there anything left to do in Windows? In Ubuntu it works great.

Thanks
 
hi, according to the vm generation id whitepaper from microsoft, a vmgenid change is not necessary when a vm is paused/resumed
Scenario | Generation ID changed
Virtual machine is paused or resumed | No
 
hi, according to the vm generation id whitepaper from microsoft, a vmgenid change is not necessary when a vm is paused/resumed
Ähm.. ok, and that means what? So no ntp? So wrong time for 5 hours?
 
I think this feature need more improve; ESXI can not come back from hibernate...

FzorE0.png
https://resmim.net/f/FzorE0.png
 
Last edited:
@fireon, you can change the polling interval of the windows machine to get updates more frequently.
https://www.thewindowsclub.com/change-internet-time-update-interval-windows

Further you could run the qemu guest agent or if you have a CPU with TSC, you could try to use it.
https://access.redhat.com/documenta...ration_guide/chap-kvm_guest_timing_management

@ertanerbek, ESXi is a hypervisor and therefor not suited/optimized for such scenarios. I really doubt that this has anything to do with the hibernation feature. I rather believe that ESXi doesn't support to be hibernated at all.
 

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