Thank you, I’ll take a note and give a try.
Istvan Szabo
Staff Infrastructure Engineer
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Agoda Services Co., Ltd.
e: istvan.sz...@agoda.com<mailto:istvan.sz...@agoda.com>
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From: Boris Behrens
Sent: Tuesday, March 21, 2023 4:29 PM
To: Szabo, Istvan (Agoda) ; Ceph Users
Cc: dietr...@internet-sicherheit.de; ji...@spets.org
Subject: Re: [ceph-users] Changing os to ubuntu from centos 8
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Hi Istvan,
I currently make the move from centos7 to ubuntu18.04 (we want to jump directly
from nautilus to pacific), When everything in the cluster got the same version,
and the version is available on the new OS you can just reinstall the hosts
with the new OS.
With the mons, I remove the current mon from the list while reinstalling and
recreate the mon afterward, so I don't need to carry over any files. With the
OSD hosts I just set the cluster to "noout" and have the system down for 20
minutes, which is about the time I require to install the new OS and provision
all the configs. Afterwards I just start all the OSDs (ceph-volume lvm activate
--all) and wait for the cluster to become green again.
Cheers
Boris
Am Di., 21. März 2023 um 08:54 Uhr schrieb Szabo, Istvan (Agoda)
mailto:istvan.sz...@agoda.com>>:
Hi,
I'd like to change the os to ubuntu 20.04.5 from my bare metal deployed octopus
15.2.14 on centos 8. On the first run I would go with octopus 15.2.17 just to
not make big changes in the cluster.
I've found couple of threads on the mailing list but those were containerized
(like: Re: Upgrade/migrate host operating system for ceph nodes (CentOS/Rocky)
or Re: Migrating CEPH OS looking for suggestions).
Wonder what is the proper steps for this kind of migration? Do we need to start
with mgr or mon or rgw or osd?
Is it possible to reuse the osd with ceph-volume scan on the reinstalled
machine?
I'd stay with baremetal deployment and even maybe with octopus but I'm curious
your advice.
Thank you
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