Re: [Xen-users] Xen 4.0 feature request

["Eljas Alakulppi" <Buzer@xxxxxxxxx>]

If you want snapshots of the filesystem, use LVM. "xm save" takes snapshot  
of the domain's state (memory and such).
One secnario where xm save is useful: You need to reboot the Dom0, but  
want to restore DomUs back to how they were after reboot (really useful  
when your router is in DomU. Reboot is normally fast enough to get the  
router back up before the connections timeout).
-Eljas Alakulppi

On Sun, 05 Jul 2009 17:35:54 +0300, Enrico Valsecchi <admin@xxxxxxxxxx>  
wrote:
> > Do you know "xm save"?
> >
> > Overmind # xm save
> > Error: 'xm save' requires between 2 and 3 arguments.
> >
> > Usage: xm save [-c] <Domain> <CheckpointFile>
> >
> > Save a domain state to restore later.
> >   -c, --checkpoint               Leave domain running after creating
> Yes,
> I know xm save command....
> ....but:
>
> I have make a snapshot with xm save -c, then I have delete some file in a
> system
> (complete remove /boot directory)
> O.K., I'm shutdown domain and restore.
>
> Result are that domain start, but does not are file deleted from me!
>
> My little and stupid question are:
>
> What do you do with this snapshot???????
>
> Bye,
>
> Enrico
>
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