AWG v2 number of instances and AZ availability

Question

Hello,

I'm confused about something. I'd like to deploy Azure AGW that should be available in all three AZs, and 1 instance in each. if I set the availability to be accross all AZs in a region, and set the instances count to "1", does that mean "1" instance will be deployed in each AZ? or the total is just 1, and I should set the instance count to 3?

Thank you!

Answer 1

Hello @Mohamed Roushdy , Welcome to the Microsoft Q&A forum.

Azure Application Gateway deployed with availability zones are by design deployed with 2 instance counts to maintain high availability. When Application Gateway scales the instance counts are evenly distributed within these availability zones.

In your case above you should choose minimum instance count as 3, so that each instance is deployed in an Availability Zone.

Hope this helps! Please let me know if you have any additional questions. Thank you!