There’s also a maintenance mode available for the orchestrator:
https://docs.ceph.com/en/reef/cephadm/host-management/#maintenance-mode
There’s some more information about that in the dev section:
https://docs.ceph.com/en/reef/dev/cephadm/host-maintenance/
Zitat von Anthony D'Atri <anthony.datri@xxxxxxxxx>:
That's just setting noout, norebalance, etc.
On Jun 12, 2024, at 11:28, Michael Worsham
<mworsham@xxxxxxxxxxxxxxxxxx> wrote:
Interesting. How do you set this "maintenance mode"? If you have a
series of documented steps that you have to do and could provide as
an example, that would be beneficial for my efforts.
We are in the process of standing up both a dev-test environment
consisting of 3 Ceph servers (strictly for testing purposes) and a
new production environment consisting of 20+ Ceph servers.
We are using Ubuntu 22.04.
-- Michael
________________________________
From: Daniel Brown <daniel.h.brown@thermify.cloud>
Sent: Wednesday, June 12, 2024 9:18 AM
To: Anthony D'Atri <anthony.datri@xxxxxxxxx>
Cc: Michael Worsham <mworsham@xxxxxxxxxxxxxxxxxx>;
ceph-users@xxxxxxx <ceph-users@xxxxxxx>
Subject: Re: Patching Ceph cluster
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There’s also a Maintenance mode that you can set for each server,
as you’re doing updates, so that the cluster doesn’t try to move
data from affected OSD’s, while the server being updated is offline
or down. I’ve worked some on automating this with Ansible, but have
found my process (and/or my cluster) still requires some manual
intervention while it’s running to get things done cleanly.
On Jun 12, 2024, at 8:49 AM, Anthony D'Atri
<anthony.datri@xxxxxxxxx> wrote:
Do you mean patching the OS?
If so, easy -- one node at a time, then after it comes back up,
wait until all PGs are active+clean and the mon quorum is complete
before proceeding.
On Jun 12, 2024, at 07:56, Michael Worsham
<mworsham@xxxxxxxxxxxxxxxxxx> wrote:
What is the proper way to patch a Ceph cluster and reboot the
servers in said cluster if a reboot is necessary for said
updates? And is it possible to automate it via Ansible? This
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