[ceph-users] Changing allocation size

Hi all, A while back, I indicated we had an issue with our cluster filling up too fast. After checking everything, we've concluded this was because we had a lot of small files and the allocation size on the bluestore was too high (64kb). We are now recreating the OSD's (2 disk at the same time) but, this will take a very long time as we're dealing with 130 OSDs. The current process we're following is removing 2 osd's and recreating them. We're using erasure coding (6 + 3). Has anyone some advice on how we can move forward with this? We've already increased some parameters to speed up recovery, but even then, it would still cost us too much time. If we could recreate them faster, that would be great... Or adapt the allocation on the fly? Any suggestions are welcome... Thank you, Kristof.