Hello, it's clear to me getting a performance gain from putting the journal on a fast device (ssd,nvme) when using filestore backend. it's not when it comes to bluestore - are there any resources, performance test, etc. out there how a fast wal,db device impacts performance? br wolfgang -- Wolfgang Lendl IT Systems & Communications Medizinische Universität Wien Spitalgasse 23 / BT 88 /Ebene 00 A-1090 Wien Tel: +43 1 40160-21231 Fax: +43 1 40160-921200 _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com