On Wed, Feb 20, 2019 at 8:16 AM Анатолий Фуников <anatoly.funikov@xxxxxxxxxxx> wrote: > > Hello. I need to raise the OSD on the node after reinstalling the OS, some OSD were made a long time ago, not even a ceph-disk, but a set of scripts. > There was an idea to get their configuration in json via ceph-volume simple scan, and then on a fresh system I can make a ceph-volume simple activate --file /etc/ceph/osd/31-46eacafe-22b6-4433-8e5c-e595612d8579.json > I do ceph-volume simple scan /var/lib/ceph/osd/ceph-31/, and got this json: https://pastebin.com/uJ8WVZyV > It seems everything is not bad, but in the data section I see a direct link to the device /dev/sdf1, and the uuid field is empty. At the same time, in the /dev/disk/by-partuuid directory I can find and substitute this UUID in this json, and delete the direct link to the device in this json. > The question is: how correct is it and can I raise this OSD on a freshly installed OS with this fixed json? It worries me that it is unable to find a uuid for the device. This is important because paths like /dev/sdf1 are ephemeral and can change after a reboot. The uuid is found by running the following: blkid -s PARTUUID -o value /dev/sdf1 If that is not returning anything, then ceph-volume will probably not be able to ensure this device is brought up correctly. You can correct or add to anything in the JSON after a scan and rely on that, but then again without a partuuid I don't think this will work nicely > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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