* -c: Pass arguments on the command line. Multiple arguments may be given.
Remount the file system /var/backup and check, if /var/backup has the desired values: xfs_quota -x -c state /var/backup
As you can see (items marked bold), we have achieved our goal:
User quota state on /var/backup (/dev/vdbmapper/vg--local--01-var)
Accounting: '''ON'''
Enforcement: '''ON'''
Inode: #131 (1 blocks, 1 extents)
Group quota state on /var/backup (/dev/vdbmapper/vg--local--01-var)
Accounting: OFF
Enforcement: OFF
Inode: #132 (1 blocks, 1 extents)
Project quota state on /var/backup (/dev/vdbmapper/vg--local--01-var)
Accounting: '''ON'''
Enforcement: '''ON'''