> I was wondering how exactly you accomplish that? > Can you do this with a "ceph-deploy create" with "noin" or "noup" flags > set, or does one need to follow the manual steps of adding an osd? You can do it either way (manual or with ceph-deploy). Here are the steps using ceph-deploy: 1. Add "osd crush update on start = false" [0] to your ceph.conf 2. Use "ceph-deploy osd prepare <hostname>:<disk>:<journal> ... This will configure the OSD but not add it into the CRUSHMap, which then can be done late as Wido suggested. Best, Martin [0] http://docs.ceph.com/docs/jewel/rados/operations/crush-map/#ceph-crush-location-hook _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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