Hi everyone,

When I started setting up a test cluster, I created a cephfs_data pool since I thought I was going to use the replicated type for the pool. This turned out not to be to most ideal choice when it comes to usable disk space. So I decided to create another erasure coded pool with k=2;m=2 which I did. Please see the attached log file. I also attached the output of the pools from the dashboard.

The problem is this. Whenever an OSD needs to be brought down, the cluster is going to rebalance and enter the degraded mode. The rebalance of the cluster takes a while since all the PG's need to be redistributed. Now I could use something like:

However, I want to be able to have the cluster recovered much faster but cephfs_data pool which has a lot of PG's which I cannot reduce (not able in mimic) is keeping the cluster busy. This pool isn't used for storing any data and I am not sure if I can remove this pool without effecting the th-ec22 EC pool.

Anyone any thoughs on this?

In case I provided insufficient or missing information, please let me know. I'd gladly share those with you.

-- 
Met vriendelijke groeten, Kind regards

Valentin Bajrami
Target Holding