Hi,
in addition you need a way to recover the mon maps (I assume the mon was
on the same host). If the mon data is lost, you can try to retrieve some
of the maps from the existing OSDs. See the documentation about desaster
recovery in the ceph documentation.
If you cannot restore the mons, recovering the OSDs will be more or less
useless.
Regards,
Burkhard
On 04.07.20 10:05, Eugen Block wrote:
Hi,
it should work with ceph-volume after you re-created the OS:
ceph-volume lvm activate --all
We had that case just recently in a Nautilus Cluster and it worked
perfectly.
Regards,
Eugen
Zitat von Daniel Da Cunha <daniel@xxxxxx>:
Hello,
As a hobbies, I have been using Ceph Nautilus as a single server with
8 OSDs. Part of the setup I set the crush map to fail at OSD level:
step chooseleaf firstn 0 type osd.
Sadly, I didn’t take the necessary precaution for my boot disk and
the OS failed. I have backups of /etc/ceph/ but I am not able to
recover the OS.
Can you think of a way for me to recreate the OS and adopt the 8 OSD
without loosing the data?
Thanks & regards,
Daniel
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