On 3/19/21 5:05 PM, Andrew Walker-Brown wrote:

Hi Adrian, Hi!

For maintenance, this is the procedure I’d follow:

https://ceph.io/planet/how-to-do-a-ceph-cluster-maintenance-shutdown/ <https://ceph.io/planet/how-to-do-a-ceph-cluster-maintenance-shutdown/>

Difference between maintenance and emergency; I’d probably set all the flags as per maintenance but down the OSD’s at the same time followed by all the mons/admin.

Thanks a lot for info!! I was thinking, maybe the documentation could have a "Usual Procedures" where certain common operations could be described? Thanks a lot again :) Adrian

If you scripted it, there’s probably not a lot of difference in the time take to shutdown.

A.

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*From: *Adrian Sevcenco <mailto:Adrian.Sevcenco@cern.ch> *Sent: *18 March 2021 19:26 *To: *ceph-users <mailto:ceph-users@ceph.io> *Subject: *[ceph-users] howto:: emergency shutdown procedure and maintenance

Hi! What steps/procedures are required for emergency shutdown and for machine maintenance?

Thanks a lot! Adrian