From: "Ragnar Kjørstad" <reiserfs@ragnark.vestdata.no>
To: Lars Marowsky-Bree <lmb@suse.de>
Cc: kend@xanoptix.com, reiserfs-list@namesys.com
Subject: Re: Snapshots a la NetApp?
Date: Mon, 24 Mar 2003 13:49:35 +0100 [thread overview]
Message-ID: <20030324124934.GD1318@vestdata.no> (raw)
In-Reply-To: <20030323111831.GF12916@marowsky-bree.de>
On Sun, Mar 23, 2003 at 12:18:31PM +0100, Lars Marowsky-Bree wrote:
> > I'm just wondering if there's any development being done on NetApp-like
> > snapshots. (This differs from LVM snapshots in that it's file-by-file,
> > instead of volume based.) If not, has anyone given it any consideration?
> > It would be a huge win for the RAID-in-a-box folks, and, speaking as a
> > sysadmin, is something about which I dream frequently.
>
> Well, implementing it at the LVM level isn't entirely bad though. What kind of
> advantage would have implementing at the filesystem level have? It would need
> to compensate at least the disadvantage of being less general.
I think the main advantage of having it in the filesystem is that it
makes the snapshots available to the users. This makes it possible for
regular users to undelete / restore files without having to contact the
sysadmin.
As for linux implementations of NetApp-like snapshots you should check
out snapfs:
http://www.mountainviewdata.com/us/product/product_snap_1.html
http://www-mddsp.enel.ucalgary.ca/People/adilger/snapfs/
http://sourcefrog.net/projects/snapfs/
--
Ragnar Kjørstad
Zet.no
next prev parent reply other threads:[~2003-03-24 12:49 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-22 23:22 Encryption Pierre Abbat
2003-03-22 23:29 ` Encryption Yury Umanets
2003-03-24 20:37 ` Encryption Hans Reiser
2003-03-25 19:18 ` Encryption Edward Shushkin
2003-03-23 3:38 ` Snapshots a la NetApp? kend
2003-03-23 9:16 ` Heinz-Josef Claes
2003-03-24 20:49 ` Hans Reiser
2003-03-24 21:42 ` Heinz-Josef Claes
2003-03-25 0:03 ` Tom Vier
2003-03-26 21:11 ` Heinz-Josef Claes
2003-03-25 2:35 ` Hans Reiser
2003-03-26 14:15 ` Heinz-Josef Claes
2003-03-26 18:37 ` Hans Reiser
2003-03-26 22:45 ` Valdis.Kletnieks
2003-03-25 6:15 ` unsubscribe Voicu Liviu
2003-03-23 11:18 ` Snapshots a la NetApp? Lars Marowsky-Bree
2003-03-24 12:49 ` Ragnar Kjørstad [this message]
2003-03-23 12:44 ` Oleg Drokin
-- strict thread matches above, loose matches on Subject: below --
2003-03-26 17:54 Barry, Christopher
2003-03-26 18:29 ` Heinz-Josef Claes
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