DAG server exchange membership :

New Contributor

Hi teams ,

I have 3 server exchange 2019 member in a single dag installed January 2023, I want to add a 4th server in the same dag in March 2023 (after 2 mounth) , The 4th server has the same hard features as the three servers (RAM, cpu...), the question is that it is mandatory that I install the same update windowS update installed in the 3 server, or the windows update is not a prerequis for the server add in the dag ( that is to say is the same update in the 4 are identical for failover clustering for the DAG) ??



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