When having a hdd bluestore osd with collocated wal and db. - What performance increase can be expected if one would move the wal to an ssd? - What performance increase can be expected if one would move the db to an ssd? - Would the performance be a lot if you have a very slow hdd (and thus not so much when you have a very fast hdd (sas 15k)) - It would be best to move the wal first to the ssd, and then maybe also the db? In this CERN video (https://youtu.be/OopRMUYiY5E?t=931) of 2015 they are talking about 5-10x increase etc. But that is filestore of course. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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