Managing Quotas for Btrfs Subvolumes With Quota Groups

Note:

Be aware that the quota groups feature is available as a Technology Preview only in Oracle Linux. Working with this feature requires that you boot the system by using UEK R8 .

Use the btrfs quota enable command to enable quotas on a volume:
Enable quotas by running following command on a newly created Btrfs file system before any creating any subvolumes:
```
sudo btrfs quota enable volume
```
Assign a quota-group limit to a subvolume by using the btrfs qgroup limit command:
The following example shows how you would use this command:
```
sudo btrfs qgroup limit 1g /myvol/subvol1
```
```
sudo btrfs qgroup limit 512m /myvol/subvol2
```
To find out the quota usage for a subvolume, use the btrfs qgroup show command.
For example, run:
```
btrfs qgroup show /myvol/subvol1
```