Re: Reinstalling OSD node managed by cephadm

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Thank you for the information. I will try this.

Would this also work when renaming hosts at the same time?

- remove host from ceph orch
- reinstall host with different name/IP
- add back host into ceph orch
- use ceph osd activate

as above?

On Mon, Jan 31, 2022 at 10:44 AM Robert Sander
<r.sander@xxxxxxxxxxxxxxxxxxx> wrote:
>
> Am 28.01.22 um 21:09 schrieb Manuel Holtgrewe:
>
> > What is the overall process of reinstalling (e.g., for going from
> > enterprise linux 7 to 8) and getting my OSDs back afterwards.
> >
> > - reinstall operating system on system disk
> > - install cephadm binary
> > - ... now what? ;-)
>
> You need to add the cephadm SHS public key to
> /root/.ssh/authorized_keys. After that you should be able to run
>
> ceph cephadm osd activate $HOSTNAME
>
> to have the orchestrator start the OSD containers on $HOSTNAME.
>
> Regards
> --
> Robert Sander
> Heinlein Consulting GmbH
> Schwedter Str. 8/9b, 10119 Berlin
>
> http://www.heinlein-support.de
>
> Tel: 030 / 405051-43
> Fax: 030 / 405051-19
>
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