AlwaysOn Availability Groups provide a flexible option for achieving high availability, recovering from disasters, and scaling out read-only workloads. The technology synchronizes data at the database level, with health monitoring and quorum often provided by a Windows cluster, although a Windows cluster is not mandatory.
There are different variations of AlwaysOn Availability Groups. The traditional flavor sits on a Windows Failover Cluster, but if SQL Server is installed on Linux, then Pacemaker can be used. AlwaysOn Availability Groups can also be configured ...
