Can SQL Server Failover Cluster Instance run twice as fast as SQL Server Basic Availability Groups in 2-node cluster? Part 1: Studying BAG performance
Some time ago, while looking through what SQL server Basic Availability Groups (BAG) can do, I found an awesome article by Pieter Vanhove: https://blogs.technet.microsoft.com/msftpietervanhove/2017/03/14/top-5-questions-about-basic-availability-groups/. There was nothing about performance, though, so I thought: “Hey, why not write an article about BAG performance?” Later, I realized that you need to compare this performance to something else, right? So, I decided to add SQL Server Failover Cluster Instance (FCI) performance measurements. Maybe, I’ll add some SQL Server Availability Groups (AG) measurements at the end; but, let’s see first whether SQL Server FCI can run twice as fast as SQL Server BAG.
In this study, I measured BAG performance alone. Now, as we know the scope of the article, let’s move on!
