Hi Eugen, What a good coincidence ;-) So I ran "cephadm ceph-volume lvm list" on the OSD node which I re-instaled and it saw my osd.2 OSD. So far so good, but the following suggested command does not work as you can see below: ubuntu@ceph1f:~$ sudo cephadm deploy --name osd.2 --fsid 91a86f20-8083-40b1-8bf1-fe35fac3d677 Deploy daemon osd.2 ... Traceback (most recent call last): File "/usr/local/sbin/cephadm", line 6223, in <module> r = args.func() File "/usr/local/sbin/cephadm", line 1440, in _default_image return func() File "/usr/local/sbin/cephadm", line 3457, in command_deploy deploy_daemon(args.fsid, daemon_type, daemon_id, c, uid, gid, File "/usr/local/sbin/cephadm", line 2193, in deploy_daemon deploy_daemon_units(fsid, uid, gid, daemon_type, daemon_id, c, File "/usr/local/sbin/cephadm", line 2255, in deploy_daemon_units assert osd_fsid AssertionError Any ideas what is wrong here? Regards, Mabi ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On Thursday, May 27, 2021 12:13 PM, Eugen Block <eblock@nde.ag> wrote:
Hi,
I posted a link to the docs [1], [2] just yesterday ;-)
You should see the respective OSD in the output of 'cephadm ceph-volume lvm list' on that node. You should then be able to get it back to cephadm with
cephadm deploy --name osd.x
But I haven't tried this yet myself, so please report back if that works for you.
Regards, Eugen
[1] https://tracker.ceph.com/issues/49159 [2] https://tracker.ceph.com/issues/46691
Zitat von mabi mabi@protonmail.ch:
Hello, I have by mistake re-installed the OS of an OSD node of my Octopus cluster (managed by cephadm). Luckily the OSD data is on a separate disk and did not get affected by the re-install. Now I have the following state:
health: HEALTH_WARN 1 stray daemon(s) not managed by cephadm 1 osds down 1 host (1 osds) down
To fix that I tried to run:
ceph orch daemon add osd ceph1f:/dev/sda
=========================================
Created no osd(s) on host ceph1f; already created? That did not work, so I tried:
ceph cephadm osd activate ceph1f
=================================
no valid command found; 10 closest matches: ... Error EINVAL: invalid command Did not work either. So I wanted to ask how can I "adopt" back an OSD disk to my cluster? Thanks for your help. Regards, Mabi
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