On Thu, May 22, 2014 at 10:57 AM, Sharmila Govind <sharmilagovind at gmail.com> wrote: > root at cephnode4:/mnt/ceph/osd2# mount |grep ceph > /dev/sdc on /mnt/ceph/osd3 type ext4 (rw) > /dev/sdb on /mnt/ceph/osd2 type ext4 (rw) > > All the above commands just pointed out the mount points(/mnt/ceph/osd3), > the folders were named by me as ceph/osd. But, if a new user has to get the > osd mapping to the mounted devices, would be difficult if we named the osd > disk folders differently. Any other command which could give the mapping > would be useful. It really depends on how you have set up the OSDs. If you're using ceph-deploy or ceph-disk to partition and format the drives, they get a special partition type set which marks them as a Ceph OSD. On a system set up that way, you get nice uniform output like this: # ceph-disk list /dev/sda : /dev/sda1 other, ext4, mounted on /boot /dev/sda2 other, LVM2_member /dev/sdb : /dev/sdb1 ceph data, active, cluster ceph, osd.0, journal /dev/sdb2 /dev/sdb2 ceph journal, for /dev/sdb1 /dev/sdc : /dev/sdc1 ceph data, active, cluster ceph, osd.3, journal /dev/sdc2 /dev/sdc2 ceph journal, for /dev/sdc1 John
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