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tgitchel
Copper Contributor
May 04, 2022

AOAG or FCI for SQL Server With Hundreds of DBs

There are many reasons why one might choose AOAG over FCI for a new highly available SQL Server cluster.  However, there are issues with a large number of user databases due to the many threads needed to keep them in sync vs FCI shared storage block replication.  Is there a threshold number of user databases where AOAG is no longer a viable architecture?  What about simply scaling the compute to compensate?

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