Hi Anthony, On Thu, 16 Apr 2026, Anthony D'Atri via ceph-users wrote:

I might suggest either enabling the autoscaler or setting the mode to off.

I confirm, setting the autoscaler mode from warn to off removes the health warning. Until now I had always used mode=warn as a last resort for the absentminded admin (i.e. cluster expansion / OSD addition). What I miss from previews ceph versions is, that autoscale-status shows the suggested PG count in the column "NEW PG_NUM", like shown in the docs[1]. And regarding the ping-pong with TOO_MANY / TOO_FEW. I understand that BIAS=4.0 for the index pool should prevent oscillating suggestions? Thanks, Sascha. [1] https://docs.ceph.com/en/latest/rados/operations/placement-groups/#viewing-p...