snapshot in stead of shutdown in case of UPS shutdown initiation

[immo]

Hi, Are there any proposal how to snapshot all the VMs I have on a server (52!) to disk in case of UPS initiated shutdown. Shutdown would break the shutdown timeframe and destroy some running tools.... Mainly it could be done by script. But how to handle the restore if power comes back ? Immo

 

[wolfgang]

Hi,
you must make a snapshot with memory and when the host came up, a rollback to the snapshot.
This will set the machine to the last state (running).
But have in mind a snapshot with memory can take long time dependence on memory size.

 

[immo]

Ok thats clear to me... But as far as I know there is no automatically way for that right ? Probably someone already implemented such thing

 

[wolfgang]

No, there is noting implemented!