HI Eugen,
We have 80 osds in the cluster.
So, to stop them I will need to run the command *ceph orch stop osd.<ID>*
for all 80 osds one by one.
Is there any way to stop all of them in one command ?
Also, once all nodes will be back after power maintenance activity , will I
need to start all daemons mon , mds , osd,etc
? or will they be up automatically once servers will be up ?
Thanks,
Gagan
On Wed, Aug 6, 2025 at 4:45 PM Eugen Block <ebl...@nde.ag> wrote:
> Although SUSE discontinued their product, the procedure is still correct
> [0]:
>
> 1. Tell the Ceph cluster not to mark OSDs as out:
>
> ceph osd set noout
>
> 2. Stop daemons and nodes in the following order:
>
> Storage clients
>
> Gateways, for example NFS Ganesha or Object Gateway
>
> Metadata Server
>
> Ceph OSD
>
> Ceph Manager
>
> Ceph Monitor
>
> 3. If required, perform maintenance tasks.
>
> 4. Start the nodes and servers in the reverse order of the shutdown
> process:
>
> Ceph Monitor
>
> Ceph Manager
>
> Ceph OSD
>
> Metadata Server
>
> Gateways, for example NFS Ganesha or Object Gateway
>
> Storage clients
>
> 5. Remove the noout flag:
>
> ceph osd unset noout
>
> [0]
>
> https://documentation.suse.com/en-us/ses/7.1/html/ses-all/storage-salt-cluster.html#sec-salt-cluster-reboot
>
> Zitat von gagan tiwari <gagan.tiw...@mathisys-india.com>:
>
> > Hi Guys,
> > I have recently set-up a production ceph cluster which
> > consists of 3 monitor nodes and 7 Osd nodes.
> >
> > There is power maintenance activity scheduled at the data centre coming
> > weekend and due to that I need to power off all the devices.
> >
> > Can you please advise me on the safest way to power off all servers?
> >
> > Should I power off all 7 OSD servers one by one followed by all 3 monitor
> > nodes or vice versa?
> >
> > Thanks,
> > Gagan
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>
>
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