Hello Guys,
I have 2016 DC and ADC, few days ago one of the DC crashed and I cleaned up metadata and removed crashed DC entries completely, and seized all roles. Now running with one DC- Server 2016.
I am planning to build a secondary as dc 2019, would it be a problem to have two Dc's with different versions of OS 2016 and 2019.
Also, would there be any issue with the replication as current DC 2016 using FRS replication?