1 - Unassign qgroup 1/0 from qgroup 2/0 on /dev/sdc1 (6.40 GiB) -> 2a 2b

2a - Remove qgroup 1/0 on /dev/sdc1 (6.40 GiB) -> 3a 3b
2b - Remove qgroup 2/0 on /dev/sdc1 (6.40 GiB) -> 3a 3b

3a - Create qgroup 1/1 on /dev/sdc1 (6.40 GiB) -> 4a
3b - Create qgroup 2/1 on /dev/sdc1 (6.40 GiB) -> 4b

4a - Set limits for qgroup 1/1 on /dev/sdc1 (6.40 GiB) -> 3b 5
4b - Set limits for qgroup 2/1 on /dev/sdc1 (6.40 GiB) -> 5

5 - Assign qgroup 1/1 to qgroup 2/1 on /dev/sdc1 (6.40 GiB) ->
