Displaying Block Usage Information

To display the block usage limits and the current usage in the myxfs file system for all users, use the xfs_quota command, for example:

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 in the manner of the df -h command:

sudo xfs_quota -c 'df -h' /myxfs

Filesystem     Size   Used  Avail Use% Pathname
/dev/vg0/lv0 200.0G  32.2M  20.0G   1% /myxfs

sudo xfs_quota -c 'df -ih' /myxfs

Filesystem   Inodes   Used   Free Use% Pathname
/dev/vg0/lv0  21.0m      4  21.0m   1% /myxfs

Setting Quota Limits

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:

sudo xfs_quota -x -c 'limit bsoft=200m bhard=250m isoft=200 ihard=250 guest' /myxfs 

Note that this command requires that you have 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:

sudo xfs_quota -x -c 'limit -g bsoft=5g bhard=6g devgrp' /myxfs

Setting Project Quota Limits

The instructions that follow here assume that you have already mounted the file system using the pquota option and have created a project ID in /etc/projects. See Setting Project Quotas.

1. Use the project subcommand of xfs_quota to define a managed tree in the XFS file system for the project.

   sudo xfs_quota -x -c ’project -s project_name’ mountpoint

   For example, you would define a managed tree in the /myxfs file system for the project testproj, which corresponds to the directory hierarchy /myxfs/testdir, as follows:

   sudo xfs_quota -x -c ’project -s testproj’ /myxfs

2. Use the limit subcommand to set limits on the disk usage of the project.

   sudo xfs_quota -x -c ’limit -p arguments project_name’ mountpoint

   For example, to set a hard limit of 10 GB of disk space for the project testproj, you would use the following command:

   sudo xfs_quota -x -c ’limit -p bhard=10g testproj’ /myxfs

For more information, see the projects(5), projid(5), and xfs_quota(8) manual pages.