backups
seth vidal
skvidal at phy.duke.edu
Mon Sep 20 14:14:21 UTC 2004
On Mon, 2004-09-20 at 10:09, Russell Coker wrote:
> On Mon, 20 Sep 2004 11:48, Colin Walters <walters at redhat.com> wrote:
> > > Are these all features of ext3? If so, wouldn't dump do the job?
> >
> > Well, it's not quite the same thing. You can't safely dump a live
> > filesystem, making it unusable for me. Also it's far less granular than
> > an archiver like tar or dar.
>
> LVM snapshots will allow dump to be used on live file systems.
>
> Dump does not work across file systems, so if you want to convert an Ext3 file
> system to ReiserFS or XFS then dump will not help.
>
> Dump is tied to Inode numbers and I believe that this has some implications
> for restoring deleted files if the machine has continued operation and
> created other files with the same Inode numbers.
>
> We do need a better backup solution, a friend investigated backups some time
> ago (without regard to SE Linux) and reached the conclusion that extending
> "dar" offered the best promise of all the Linux backup options. So dar may
> be worth considering.
>
Has anyone looked into bacula's ability to store extended attributes?
Does it have any?
-sv
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