Hi, > Given that the first host added had 19 OSDs, with none of them anywhere > near the target capacity, and the one we just added has 22 empty OSDs, > having just 22 PGs backfilling and 1 recovering seems somewhat > underwhelming. > > Is this to be expected with such a pool? Mclock profile is > high_recovery_ops. > Since you are already using the high_recovery_ops profile, you could additionally try incrementing "osd_max_backfills" (default: 1) by a small amount (2 or 3) using the following procedure and see if it improves the backfill rate: https://docs.ceph.com/en/quincy/rados/configuration/mclock-config-ref/#steps-to-modify-mclock-max-backfills-recovery-limits -Sridhar _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx