How many availability groups can be created in SQL Server?

Question

Supports up to nine availability replicas. An availability replica is an instantiation of an availability group that is hosted by a specific instance of SQL Server and maintains a local copy of each availability database that belongs to the availability group. 12 апр. 2022 г.

How many basic availability groups can you have?

Basic availability groups include the following limitations: Limit of two replicas (primary and secondary). Basic Availability Groups for SQL Server 2017 on Linux support an additional configuration only replica.

How many AlwaysOn availability groups can be configured in always on?

You can have more than one AlwaysOn Availability Group on your instance, but databases cannot belong to more than one group. Not configured for database mirroring.

How many replicas can I have in an AlwaysOn availability group?

Up to eight secondary replicas are supported, including one primary replica and two synchronous-commit secondary replicas.

How many availability modes are supported by Always On?

Always On availability groups supports three availability modes-asynchronous-commit mode, synchronous-commit mode, and configuration only mode as follows: Asynchronous-commit mode is a disaster-recovery solution that works well when the availability replicas are distributed over considerable distances.

Expert · Answer