Re: [Xen-users] Backup domU xen

[Marc Patino Gómez <mpatino@xxxxxxxxxxxx>]

Hi,

I used these steps to backup my domUs and never I had this problem.


Pascal Nobus wrote:
> .... seem to be a never ending story ...
> I've found the problem of my crashes (two days on a row now).
>
> I'm using lvm2 as a filesystem, and was doing backup's like this:
> - take a snapshot of a running system
> - mount the snapshot
> - rsync the snapshot to my backup-partition.
> - umount the snapshot
> - remove the snaphost
Have your dom0 enough memory? Snapshots  requires some aditional memory, 
so if you had your dom0 limited to 256MB of RAM it could be a problem.
To prevent a not responding system you can use "renice" command to 
schedule rsync command with low priority.
If you can post more info, like log output of the crash , probably  
someone in the list could help you.
Regards,

Marc
> This resulted in a huge load, which was increased 1 hour later, and 
> resulted in a not-responding system.
> I googled now for 2 days, and found many discussions, but I cannot 
> find a proper and stable solution.
> Should I maybe just mount the domU over the network (portmap) to have 
> a non-crashing solution?
> Best regards,
> Pascal
>
>
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