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

Discussion in 'Proxmox VE: Installation and configuration' started by fireon, Apr 13, 2019.

  1. fireon

    fireon Well-Known Member
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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
     
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  2. dcsapak

    dcsapak Proxmox Staff Member
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    hi, according to the vm generation id whitepaper from microsoft, a vmgenid change is not necessary when a vm is paused/resumed
     
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  3. fireon

    fireon Well-Known Member
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    Ähm.. ok, and that means what? So no ntp? So wrong time for 5 hours?
     
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  4. ertanerbek

    ertanerbek New Member

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    #4 ertanerbek, Apr 15, 2019
    Last edited: Apr 16, 2019
  5. Alwin

    Alwin Proxmox Staff Member
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    @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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  6. fireon

    fireon Well-Known Member
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