*delete* <dev> [<dev>...] <path>::
Remove device(s) from a filesystem identified by <path>.
+*ready* <device>::
+Check device to see if it has all of it's devices in cache for mounting.
+
*scan* [(--all-devices|-d)|<device> [<device>...]]::
Scan devices for a btrfs filesystem.
+
Finally, if '--all-devices' or '-d' is passed, all the devices under /dev are
scanned.
-*ready* <device>::
-Check device to see if it has all of it's devices in cache for mounting.
-
*stats* [-z] <path>|<device>::
Read and print the device IO stats for all devices of the filesystem
identified by <path> or for a single <device>.