Patching SQL Server Availability Group Servers

Now that you have an Availability Group setup, what can you do with it?  Well, now you can patch your servers with almost zero downtime by doing rolling upgrades.  For our 24*7 economy, downtime can be very expensive in lost sales, people not being able to work, etc.   I am going to walk you through the process of installing Windows Updates on my three server cluster.

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