Hello,
What error message do you get when you try and turn it on? If the daemon is crashing, what is the backtrace?
The daemon is crashing. Here is the full log if you want to take a look : http://vps.ledeuns.net/ceph-osd.0.log.gz
The RBD rebuild script helped to get the data back. I will now try to rebuild a Ceph cluster and do some more tests.
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