Question about how to start ceph OSDs with systemd

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hi,

In the last days I do play around with ceph jewel on debian Jessie and CentOS 7. Now I have a question about systemd on this Systems.

I installed ceph jewel (ceph version 10.2.2 (45107e21c568dd033c2f0a3107dec8f0b0e58374)) on debian Jessie and prepared some OSDs. While playing around I decided to reinstall my operating system (of course without deleting the OSD devices ). After the reinstallation of ceph and put in the old ceph.conf I thought the previously prepared OSDs do easily start and all will be fine after that.

With debian Wheezy and ceph firefly this worked well, but with the new versions and systemd this doesn't work at all. Now what have I to do to get the OSDs running again?

The following command didn't work and I didn't get any output from it.
  systemctl start ceph-osd.target

And this is the output from systemctl status ceph-osd.target
● ceph-osd.target - ceph target allowing to start/stop all ceph-osd@.service instances at once Loaded: loaded (/usr/lib/systemd/system/ceph-osd.target; enabled; vendor preset: enabled)
   Active: active since Fri 2016-07-08 17:19:29 CEST; 36min ago

Jul 08 17:19:29 cs-dellbrick01.server.lan systemd[1]: Reached target ceph target allowing to start/stop all ceph-osd@.service instances at once. Jul 08 17:19:29 cs-dellbrick01.server.lan systemd[1]: Starting ceph target allowing to start/stop all ceph-osd@.service instances at once. Jul 08 17:31:15 cs-dellbrick01.server.lan systemd[1]: Reached target ceph target allowing to start/stop all ceph-osd@.service instances at once.



thanks,
Manuel

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