<div dir="ltr">-N 16 means 16 journals. I think it defaults to 256M journals. So that's 4G. Do you plan to mount it on 16 nodes? If not, reduce that. Other options is a smaller journal. But you have to be careful as a small journal could limit your write thruput.<br>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Apr 15, 2013 at 1:37 PM, Jerry Smith <span dir="ltr"><<a href="mailto:jdsmit@sandia.gov" target="_blank">jdsmit@sandia.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Good afternoon,<br>
<br>
I have an OEL 6.3 box with a few ocfs2 mounts mounted locally, and was<br>
wondering what I should expect to lose via formatting etc from a disk<br>
usage standpoint.<br>
<br>
-bash-4.1$ df -h | grep ocfs2<br>
/dev/dm-15 12G 1.3G 11G 11% /ocfs2/redo0<br>
/dev/dm-13 120G 4.2G 116G 4% /ocfs2/software-master<br>
/dev/dm-10 48G 4.1G 44G 9% /ocfs2/arch0<br>
/dev/dm-14 2.5T 6.7G 2.5T 1% /ocfs2/ora01<br>
/dev/dm-11 1.5T 5.7G 1.5T 1% /ocfs2/ora02<br>
/dev/dm-17 100G 4.2G 96G 5% /ocfs2/ora03<br>
/dev/dm-12 200G 4.3G 196G 3% /ocfs2/ora04<br>
/dev/dm-16 3.0T 7.3G 3.0T 1% /ocfs2/orabak01<br>
-bash-4.1$<br>
<br>
<br>
For example ora04 is 196GB total, but with zero usage it shows 4.3GB used:<br>
<br>
[root@oeldb10 ~]#df -h /ocfs2/ora04<br>
Filesystem Size Used Avail Use% Mounted on<br>
/dev/dm-12 200G 4.3G 196G 3% /ocfs2/ora04<br>
[root@oeldb10 ~]#find /ocfs2/ora04/ | wc -l<br>
3<br>
[root@oeldb10 ~]#find /ocfs2/ora04/ -exec du -sh {} \;<br>
0 /ocfs2/ora04/<br>
0 /ocfs2/ora04/lost+found<br>
0 /ocfs2/ora04/db66snlux<br>
<br>
<br>
Filesystems formatted via<br>
<br>
mkfs -t ocfs2 -N 16 --fs-features=xattr,local -L ${device} ${device}<br>
<br>
Mount options<br>
<br>
[root@oeldb10 ~]#mount |grep ora04<br>
/dev/dm-12 on /ocfs2/ora04 type ocfs2<br>
(rw,_netdev,nointr,user_xattr,heartbeat=none)<br>
<br>
Thanks,<br>
<br>
--Jerry<br>
<br>
<br>
<br>
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</blockquote></div><br></div>