Hi,

We are going to do some maintenance on our power grid. I'll need to put my ceph 
cluster down.

My cluster is a simple tree node cluster. Before shutting down the systems, 
I'll take down all virtual machines and other services who depend on the 
cluster storage.

Is it sufficient I set the 'noout' flag before I shutdown the physical servers?

I plan to shutdown in reverse order (one after the other): Server 3, server 2, 
server 1.
I startup the cluster in order: Server 1, server 2, server 3.

Dominique.

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