5.8 Using Quota Groups


The quota groups feature requires that you boot the system using UEK R3.

To enable quotas, use the following command on a newly created btrfs file system before any creating any subvolumes:

# btrfs quota enable volume

To assign a quota-group limit to a subvolume, use the following command:

# btrfs qgroup limit size /volume/subvolume

For example:

# btrfs qgroup limit 1g /myvol/subvol1
# btrfs qgroup limit 512m /myvol/subvol2

To find out the quota usage for a subvolume, use the btrfs qgroup show path command: