=== Project (Directory) Quotas ===
Define a unique project ID for the directory hierarchy in the /etc/projects file in the form of:
echo project_ID:mountpoint/directory >> /etc/projects
A real world example:
echo 4000187:/var/backup/187/4000187 >> /etc/projects
Create an entry in the /etc/projid file that maps a project name to the project ID in the form of:
echo project_name:project_ID >> /etc/projid
A real world example:
echo 4000187:4000187 >> /etc/projid
Use the project subcommand of xfs_quota to define a managed tree in the XFS file system for the project in the form of:
xfs_quota -x -c ’project -s project_name’ mountpoint
A real world example:
xfs_quota -x -c ’4000187 -s 4000187’ /var/backup
Use the limit subcommand to set limits on the disk usage of the project:
xfs_quota -x -c ’limit -p arguments project_name’ mountpoint
A real world example:
xfs_quota -x -c ’limit -p bhard=1048576 4000187’ /var/backup
=== Some important notes concerning XFS ===