Re: [tlug] Backup Software

[David Santinoli <marauder@example.com>]

On Thu, Nov 25, 2010 at 05:51:34PM +0900, Nicolas Limare wrote:
> On Thu, Nov 25, 2010 at 05:22:45PM +0900, Edward Middleton wrote:
> > How does rsnapshot handle permission and user name changes in
> > snapshots?
> 
> Hmmm.. Good question. As rsnapshot is basically cp -l and rsync, so
> after a few quick tests I think that when a file metadata (user,
> perms, atime, ...) changes, rsync will change the attributes of the
> files in its target directory. And as they are hardlinks to the
> archived versions, the permissions will be changed for all the
> identical snapshotted versions.

You might want to make sure that rsnapshot makes proper use of rsync's
"--link-dest" option, which prevents linking when file metadata don't
match, even if contents are identical.

Cheers,
 David