Stately MDS Transitions

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All;

We just started really fiddling with CephFS on our production cluster (Nautilus - 14.2.5 / 14.2.6), and I have a question...

Is there a command / set of commands that transitions a standby-replay MDS server to the active role, while swapping the active MDS to standby-replay, or even just standby?

I'm looking for a way to seamlessly, and without down time, prepare the active MDS to go offline (reboot) as part of planned /periodic maintenance.

Thank you,

Dominic L. Hilsbos, MBA 
Director - Information Technology 
Perform Air International Inc.
DHilsbos@xxxxxxxxxxxxxx 
www.PerformAir.com


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