How to set IO limit on RBD image (ceph qos settings)

Question

From the ceph doc :

librbd supports limiting per image IO, controlled by the following settings.

Running the commands from the doc prints unknown options qos ....

I haven't found anything on the web so far. Can anyone help me please?

score 1 · Answer 1 · answered May 21 '20 at 18:08

1

Are you using Ceph nautilus or octopus? QOS on rbd images released in nautilus and above.

answered May 21 '20 at 18:08

Seena Fallah

aiqency · Accepted Answer · 2022-01-26T11:05:24.383

1

I've finally found the correct command here. I'm posting it here hoping it helps someone in the future.

At the image level: rbd config image set <pool>/<image> rbd_qos_iops_limit <value>

At the pool level: rbd config pool set <pool> rbd_qos_iops_limit <value>

edited Jan 26 '22 at 11:05

answered May 22 '20 at 00:48

aiqency

2 Answers2