The scariest word for any DBA is – Database Downtime. Every DBA who is going off duty for the day or going away on vacation for a month is always worried about Database Downtime. I totally sympathize with everyone who is constantly worried about their database’s downtime. In the real world, we all know when our database does down, it means that our business is stopped. There is no other analogy we can give.
SQL SERVER – Always On Availability Group Failover Generating Dump. Error: 17066: SQL Server Assertion: HadrFstrVnnUtils.cpp:479
One of my clients was using Always On availability group. They were having 3 nodes Always On AG setup. For simplicity, let’s call them Node1, Node2 and Node3. The first two nodes were in one subnet and node3 was in separate subnet. Let us learn about availability group failover.