[Ocfs2-users] Backup issues

[Luis Freitas]

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
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>
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>
>
>
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