The following table shows the mount options that you can specify to enable quotas on an XFS file system:
Mount Option | Description |
---|---|
gqnoenforce | Enable group quotas. Report usage, but do not enforce usage limits. |
gquota | Enable group quotas and enforce usage limits. |
pqnoenforce | Enable project quotas. Report usage, but do not enforce usage limits. |
pquota | Enable project quotas and enforce usage limits. |
uqnoenforce | Enable user quotas. Report usage, but do not enforce usage limits. |
uquota | Enable user quotas and enforce usage limits. |
To show the block usage limits and the current usage in the
myxfs
file system for all users, use the
xfs_quota command:
# xfs_quota -x -c 'report -h' /myxfs
User quota on /myxfs (/dev/vg0/lv0)
Blocks
User ID Used Soft Hard Warn/Grace
---------- ---------------------------------
root 0 0 0 00 [------]
guest 0 200M 250M 00 [------]
The following forms of the command display the free and used counts for blocks and inodes respectively in the manner of the df -h command:
#xfs_quota -c 'df -h' /myxfs
Filesystem Size Used Avail Use% Pathname /dev/vg0/lv0 200.0G 32.2M 20.0G 1% /myxfs #xfs_quota -c 'df -ih' /myxfs
Filesystem Inodes Used Free Use% Pathname /dev/vg0/lv0 21.0m 4 21.0m 1% /myxfs
If you specify the -x option to enter expert mode, you can use subcommands such as limit to set soft and hard limits for block and inode usage by an individual user, for example:
# xfs_quota -x -c 'limit bsoft=200m bhard=250m isoft=200 ihard=250 guest' /myxfs
Of course, this command requires that you mounted the file system with user quotas enabled.
To set limits for a group on an XFS file system that you have mounted with group quotas enabled, specify the -g option to limit, for example:
# xfs_quota -x -c 'limit -g bsoft=5g bhard=6g devgrp' /myxfs
For more information, see the xfs_quota(8)
manual page.