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2012 R2 rebooting with no events related, VSS?

sm flag

I have a production 2012R2 virtualized server (previously Xenserver, migrated to xcp-ng, 8.0 currently) that has been running fine for 4 years. Recently, the system tried to update Xen drivers and it failed, making the server sloooow and unusable. I was advised to migrate Xen drivers to XCP-np drivers as my system was not accepting Xen Drivers anymore. This worked and the system was again up and running fast. Nevertheless, I have been experiencing sudden reboots (once per day or couple of days) but cannot find any clue on the system logs to what is causing it. The last event I can find when the shutdown happened is 7036 related to VSS but this seems to be a normal event in the service life.

EDIT: Does not seem to be related to VSS as another reboot is preceded by a different service message (that, by the way, look a normal life event of service started/service stopped).

How can I debug the problem down to its root to find out what is causing it?

djdomi avatar
za flag
i wozld look for events that clear the event history. if this happened, i would suggest to investigate this, it could be a compromised problem
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