Create an entry for this filesystem in fstab, enable user quotas by adding quota to the list of mount options and mount the filesystem.

# sudo mkdir /mnt/xfstest
# sudo vi /etc/fstab
/dev/hdb1 /mnt/xfstest xfs defaults,quota 0 0
# sudo mount /mnt/xfstest

Investigate the following xfs_quota administrative commands

# sudo /usr/sbin/xfs_quota -x
xfs_quota> help
xfs_quota> report
xfs_quota> state
xfs_quota> path

Create some files on the filesystem and rerun the report command.