[Xen-users] Re: what to backup Xen partition with?

[Jelle S <forums@xxxxxxx>]

Rakotomandimby (R12y) Mihamina <mihamina.rakotomandimby <at> 
etu.univ-orleans.fr> writes:

> 
> Hi all,
> I choosed to install my domUs on separate partitions.
> All are "full virtualized" domUs.
> I have 4 x 10GB to backup. Of course, the backup is done while the domains 
are 
> down.
> The domains are 4 different Linux distributions I make tests on.
> I might  brake some, and dont want to go more time thrgouh the install 
> process: I just want, if I brake the domU system, to just overwrite the 
> partition with the last known good configuration.
> For the moment, the idea I apply is to "dd" the partition to a file and then 
> bzip2 it. for a first install, It goes from 10GB to 1GB (more or less, 
> depends on the distro).
> But it's still too slow (dd+bzip2). Would you know another way to make 
> partition backups?
> 
> thank you
> 

It's not goign to be of any great help now, but LVM is very handy.  I run all 
my domU's in LVM which enables you to make snaphots of your partitions.

http://tldp.org/HOWTO/LVM-HOWTO/
http://www.cl.cam.ac.uk/research/srg/netos/xen/readmes/user/user.html#SECTION03330000000000000000

Cheers,




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