MDS : replace a standby-replay daemon by an active one

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Hello to all confined people (and the others too) !

On one of my Ceph cluster (Nautilus 14.2.3), I previously set up 3 MDS daemons in active/standy-replay/standby configuration.

For design reasons, I would like to replace this configuration by an active/active/standby one.

It means replace the standby-replay daemon by an active one.

I didn't find any clear procedure regarding this operation, and my question is about if I can add an active rank directly or if I have to unset the standby-replay status first ?

I was thinking of the second option, that is:

$ sudo ceph fs set /my_fs/ allow_standby_replay false
$ sudo ceph fs set /my_fs/ max_mds 2

Is it the correct way ?

Thanks in advance,
Hervé

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