Re: [Xen-users] Re: restore a backup on other machines

[Eric Peterson <srcfoo@xxxxxxxxx>]

Hi Chris,

On 1/13/06, Chris Fanning <christopher.fanning@xxxxxxxxx> wrote:

>  If you're using image files, then just copy the image file.
That sounds interesting. Maybe I could use rsync to keep image files up to date.
Where can I learn more about image files? Got a link?
Do you link that would be comparable to a LVM snapshot?

The image file solution is well documented and can be found in most of the tutorials like this one.

In my experience the image file solution was slower than using LVM supposedly due to loopback filesystems using more memory.

The image solution would not really be comparable to an LVM
snapshot.  This is because a snapshot can take place while the
system is online.  With the image file you SHOULD shutdown the
domU or you would risk losing open files or possibly a currupt image
file. (I haven't tried this myself, but I'm guessing the results would
be bad)

If you search through the mailing list archives, there are quite a few
posts about backups and LVM.  Snapshots sound pretty unstable
right now so you may want to look for another solution.

-Eric

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