[Dirvish] Using filesystem snapshots before backup?

Tamas Papp tompos at martos.bme.hu
Mon Jul 1 14:53:36 UTC 2013


On 07/01/2013 04:43 PM, Joe Emenaker wrote:
>
> Some of the rsync_error files in my vault have "file has vanished" messages. Also, even without 
> files *vanishing*, there's the issue of files changing during the backup.
>
> However, LVM and some individual file-systems support "snapshotting" the filesystem. It seems that 
> it should be straightforward to configure Dirvish to accomodate this (just changing the root path 
> which Dirvish starts from to point to wherever you're going to mount your filesystem snapshot, and 
> then wrap the daily Dirvish cron script inside of commands which create, mount, and then release 
> the snapshot).
>
> It looks like it should be possible to do this with an *already existing* dirvish vault.
>
> Has anybody already tried this? Are there some pitfalls I'm not seeing?

I make backups this way every day.

tamas


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