I don't know the official reason, but I would imagine the disparity in performance would lead to weird behaviors and very spiky overall performance. I would think that running a mix of SSD and HDD OSDs in the same pool would be frowned upon, not just the same server.
On Fri, Jun 12, 2015 at 9:00 AM, Dominik Zalewski <dzalew...@optlink.co.uk> wrote: > Be warned that running SSD and HD based OSDs in the same server is not >> recommended. If you need the storage capacity, I'd stick to the journals >> on SSDs plan. > > > Can you please elaborate more why running SSD and HD based OSDs in the > same server is not > recommended ? > > Thanks > > Dominik > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >
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