I have a migration concept with an
AlwaysOn configuration from SQL Server 2016 (on windows server 2016) to SQL Server 2019 (on Windows Server 2019) which are in different sub-networks.
So with internet searching (MSDN, mssqltips...) I oriented my config toward "Distributed Groups".
My configuration is: AG1 (2 SQL Server with 2016) and AG2 (2 SQL Server with 2019).
I do the whole tutorial from mssqltips, Failover and then I have every Databases names with Warning (Image for 2019) but nothing imported.. why? I didn't find answer.
By the way ... The workaround is to install same SQL Server 2016 on the new windows 2019.. Do the all process with Failover throught the Distributed Group and then ... Install manually SQL Server 2019 on the windows 2019. I find it weird that we have these steps and try to understand if I missed something or whatever?
Both editions I used are Developer.