<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<font size="-1"><font face="Arial">Hi,<br>
<br>
Here we go:<br>
<br>
OCFS2 version:<br>
1.6.3-2ubuntu3~ppa3 (Ubuntu HA maintainers version for 10.04
LTS)<br>
<br>
Filesytem options:<br>
tunefs.ocfs2 -Q "Block size = %B\nCluster size = %T\nCompat
flags = %M\nIncompat flags = %H\nRO compat flags = %O\nNumSlots
= %N\n" /dev/drbd0<br>
Block size = 4096<br>
Cluster size = 4096<br>
Compat flags = backup-super strict-journal-super<br>
Incompat flags = sparse extended-slotmap userspace-stack
inline-data xattr indexed-dirs<br>
RO compat flags = unwritten<br>
NumSlots = 2<br>
<br>
Mount info:<br>
/dev/drbd0 on /var/scans type ocfs2
(rw,_netdev,noatime,cluster_stack=pcmk)<br>
<br>
</font></font>Regards,<br>
<br>
Dirk<br>
<br>
<br>
Op 4-4-2012 14:01, Sérgio Surkamp schreef:
<blockquote
cite="mid:20120404090115.415b7fde@icedearth.gruposinternet.com.br"
type="cite">
<pre wrap="">Hello,
Please provide the ocfs2 version that you are using with the mount
options and filesystem creation options (see -Q parameter from
tunefs.ocfs2).
Regards,
Sérgio
Em Tue, 03 Apr 2012 20:37:25 +0200
Dirk Bonenkamp - ProActive <a class="moz-txt-link-rfc2396E" href="mailto:dirk@proactive.nl"><dirk@proactive.nl></a> escreveu:
</pre>
<blockquote type="cite">
<pre wrap="">Hi,
I've did the --stats thing:
Number of files: 1495981
Number of files transferred: 2944
Total file size: 201701039047 bytes
Total transferred file size: 613318155 bytes
Literal data: 613292255 bytes
Matched data: 25900 bytes
File list size: 24705311
File list generation time: 0.001 seconds
File list transfer time: 0.000 seconds
Total bytes sent: 118692
Total bytes received: 638195567
sent 118692 bytes received 638195567 bytes 154163.57 bytes/sec
total size is 201701039047 speedup is 315.99
This took a staggering 69 minutes, over a Gb connection, useing rsync
direcly (no ssh overhead)
To compare this, this is a similar backup, only this is an ext3
filesystem over a 100 Mbit connection, using an ssh shell:
Number of files: 6486854
Number of files transferred: 0
Total file size: 506568034168 bytes
Total transferred file size: 0 bytes
Literal data: 0 bytes
Matched data: 0 bytes
File list size: 153625912
File list generation time: 0.001 seconds
File list transfer time: 0.000 seconds
Total bytes sent: 335
Total bytes received: 153627330
sent 335 bytes received 153627330 bytes 419175.08 bytes/sec
total size is 506568034168 speedup is 3297.38
Total backup took 368 seconds.
Rsync took 368 seconds.
(I left the -q switch in this the first time... oeps, so this is the
second run. It took 1315 seconds (21 minutes) the first time,
transferring about 10.000 files).
Any ideas?
Kind regards,
Dirk
Op 3-4-2012 11:26, Eduardo Diaz - Gmail schreef:
</pre>
<blockquote type="cite">
<pre wrap="">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
<<a class="moz-txt-link-abbreviated" href="mailto:dirk@proactive.nl">dirk@proactive.nl</a> <a class="moz-txt-link-rfc2396E" href="mailto:dirk@proactive.nl"><mailto:dirk@proactive.nl></a>> 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
--
<a class="moz-txt-link-rfc2396E" href="http://www.proactive.nl"><http://www.proactive.nl></a>
T 023 - 5422299
F 023 - 5422728
<a class="moz-txt-link-abbreviated" href="http://www.proactive.nl">www.proactive.nl</a> <a class="moz-txt-link-rfc2396E" href="http://www.proactive.nl"><http://www.proactive.nl></a>
<a class="moz-txt-link-rfc2396E" href="http://www.proactive.nl"><http://www.proactive.nl></a>
_______________________________________________
Ocfs2-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Ocfs2-users@oss.oracle.com">Ocfs2-users@oss.oracle.com</a> <a class="moz-txt-link-rfc2396E" href="mailto:Ocfs2-users@oss.oracle.com"><mailto:Ocfs2-users@oss.oracle.com></a>
<a class="moz-txt-link-freetext" href="http://oss.oracle.com/mailman/listinfo/ocfs2-users">http://oss.oracle.com/mailman/listinfo/ocfs2-users</a>
</pre>
</blockquote>
<pre wrap="">
</pre>
</blockquote>
<pre wrap="">
</pre>
</blockquote>
</body>
</html>