Hi Matt, that I'm using re-weights does not mean I would recommend it. There seems something seriously broken with reweights, see this message https://lists.ceph.io/hyperkitty/list/ceph-users@xxxxxxx/message/E5BYQ27LRWFNT4M34OYKI2KM27Q3DUY6/ and the thread with it. I have to wait for a client update before considering to change that to upmaps. I'm pretty sure the script https://github.com/TheJJ/ceph-balancer linked by Stefan can be configured/tweaked to look only at the fullest and maybe the emptiest OSDs to compute a moderately sized list of re-mappings that will eliminate the outliers only. What I would not recommend is to go all balanced and 95% OSD utilisation. You will see serious performance loss after some OSDs reached 80% and if you loose an OSD or host you will have to combat the fallout of deleted upmaps. Best regards, ================= Frank Schilder AIT Risø Campus Bygning 109, rum S14 _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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