btrfs-quota man page

btrfs-quota — control the quota of a btrfs filesystem


btrfs quota <subcommand> <args>


btrfs quota is used to enable/disable or rescan subvolume quota of a btrfs filesystem.

For setting quota or other quota operations on a btrfs filesystem, please see btrfs-qgroup(8) for details.


Quota and qgroup in btrfs filesystem is not stable and impacts performance in mainline kernel yet(v3.14 so far).


disable <path>
Disable subvolume quota support for a filesystem.
enable <path>
Enable subvolume quota support for a filesystem.
rescan [-s] <path>
Trash all qgroup numbers and scan the metadata again with the current config.


show status of a running rescan operation.
wait for rescan operation to finish(can be already in progress).

Exit Status

btrfs quota returns a zero exit status if it succeeds. Non zero is returned in case of failure.


btrfs is part of btrfs-progs. Please refer to the btrfs wiki http://btrfs.wiki.kernel.org for further details.

See Also

mkfs.btrfs(8), btrfs-subvolume(8), btrfs-qgroup(8)