[ceph-users] HDD <-> OSDs

Hi all, newbie question: The documentation seems to suggest that with ceph-volume, one OSD is created for each HDD (cf. 4-HDD-example in https://docs.ceph.com/en/latest/rados/configuration/bluestore-config-ref/) This seems odd: what if a server has a finite number of disks? I was going to try cephfs on ~10 servers with 70 HDD each. That would make each system having to deal with 70 OSDs, on 70 LVs? Really no aggregation of the disks? Regards, Thomas -- -------------------------------------------------------------------- Thomas Roth Department: IT GSI Helmholtzzentrum für Schwerionenforschung GmbH www.gsi.de