XFS: Difference between revisions
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You can check the usage, etc with: | You can check the usage, etc with: | ||
<pre> | <pre># xfs_quota -x -c 'report' /vserver | ||
# xfs_quota -x -c 'report' / | Project quota on /vserver (/dev/cciss/c0d0p7) | ||
Project quota on / | |||
Blocks | Blocks | ||
Project ID Used Soft Hard Warn/Grace | Project ID Used Soft Hard Warn/Grace | ||
---------- -------------------------------------------------- | ---------- -------------------------------------------------- | ||
foo | foo 10002856 4915200 5242880 00 [--none--] | ||
.... | .... | ||
</pre> | </pre> | ||
Revision as of 12:44, 3 October 2007
So, you use the lovely XFS file system, but those meanies at linux-vserver have told you it's not supported. :) No problems.
To get the same sort of effect as dlimits, while using the XFS file system, you can use Project Quotas.
Let's say we want to limit /vserver/foo to 5G of space.
Edit /etc/fstab, and put prjquota as an option for /vserver, and reboot. (I don't think -o remount works). It should look like this:
# grep prjquota /etc/fstab /dev/cciss/c0d0p7 /vserver xfs noatime,prjquota 0 0 host1 ~ #
echo "1235:/vservers/foo" >> /etc/projects
(I use the context for the project ID number)
echo "foo:1235" >> /etc/projid
(This is just so you can refer to a project by name)
Now we just set up the quota....
xfs_quota -x -c 'project -s foo' /vserver
And set our limits on it. (bhard = blocks hard, bsoft = blocks soft)
xfs_quota -x -c 'limit -p bsoft=4.8G bhard=5G foo' /vserver
Voila. Vservers with XFS.
You can check the usage, etc with:
# xfs_quota -x -c 'report' /vserver
Project quota on /vserver (/dev/cciss/c0d0p7)
Blocks
Project ID Used Soft Hard Warn/Grace
---------- --------------------------------------------------
foo 10002856 4915200 5242880 00 [--none--]
....
It does work, but df -h doesn't show the limit properly in the vserver. It does show the size, and the used, but the avail it still takes from the
# df -h Filesystem Size Used Avail Use% Mounted on /dev/hdv1 5.0G 3.0G 17G 21% /