Dear list, for a few days we are disecting ceph-disk and ceph-volume to find out, what is the appropriate way of creating partitions for ceph. For years already I found ceph-disk (and especially ceph-deploy) very error prone and we at ungleich are considering to rewrite both into a ceph-block-do-what-I-want-tool. Only considering bluestore, I see that ceph-disk creates two partitions: Device Start End Sectors Size Type /dev/sde1 2048 206847 204800 100M Ceph OSD /dev/sde2 206848 2049966046 2049759199 977.4G unknown Does somebody know, what exactly belongs onto the xfs formatted first disk and how is the data/wal/db device sde2 formatted? What I really would like to know is, how can we best extract this information so that we are not depending on ceph-{disk,volume} anymore. Any pointer for the on disk format would be much appreciated! Best, Nico -- Modern, affordable, Swiss Virtual Machines. Visit www.datacenterlight.ch _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com