[Ocfs2-users] Backup issues
Luis Freitas
lfreitas34 at yahoo.com
Wed Apr 4 09:44:15 PDT 2012
Dirk,
Also, you should have noatime enabled on this filesystem, check your mount options. Or else the rsync will end up causing access time to be updated.
Regards,
Luis
________________________________
From: Eduardo Diaz - Gmail <ediazrod at gmail.com>
To: Dirk Bonenkamp - ProActive <dirk at proactive.nl>
Cc: ocfs2-users at oss.oracle.com
Sent: Tuesday, April 3, 2012 11:26 AM
Subject: Re: [Ocfs2-users] Backup issues
For backup I use a local copy using tar, but I use rsync too.
I don't compare but if you send any stadistics about rsync we can said more information.
use rsync --stats
I don't note difernt speed, but did you make a full rsync, and show --progress for see that file it is going at what speed?
regards
On Mon, Apr 2, 2012 at 9:04 PM, Dirk Bonenkamp - ProActive <dirk at proactive.nl> wrote:
Hi All,
>
>I'm currently testing a OCFS2 set-up, and I'm having issues with
>creating backups.
>
>I have a 2 node cluster, running OCFS2 on a dual primary DRBD device.
>
>The file system is 3.7Tb of which 211 Gb is used: about 1.5 million
>files in 95 directories.
>
>Everything works fine, except for the backups, which are taking way more
>time than on 'regular' file systems.
>
>I'm using rsync for my backups. When I rsync the file system above, this
>takes more than an hour, without any modifications to the file system.
>
>Network / disk speed is good. I can rsync a 10 Gb file from the OCFS2
>filesystem to the same backup server with just under 100 Mb/s.
>
>I know there is some penalty to be expected from a clustered file
>system, but this is al lot. Rsyncing an ext3 file system double the size
>(in Mb's and files) of this file system takes about 600 seconds...
>
>Has anybody some advice on a backup strategy for me? Or some tuning tips?
>
>Thanks in advance,
>
>Dirk
>
>--
><http://www.proactive.nl>
>T 023 - 5422299
>F 023 - 5422728
>
>www.proactive.nl <http://www.proactive.nl>
>
>
>
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