The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
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: