How many secondary replicas are there?

Question

Up to 8 secondary replicas, including 2 synchronous secondary replicas (SQL Server 2016) Up to 8 secondary replicas, including 2 synchronous secondary replicas (SQL Server 2017) Up to 8 secondary replicas, including 5 synchronous secondary replicas (SQL Server 2019) 11 февр. 2020 г.

How many synchronous secondary replicas can I have in always on?

To configure an availability group for automatic failover, you need to set both the current primary replica and at least one secondary replica to synchronous-commit mode with automatic failover. You can have up to three automatic failover replicas.

How many synchronous secondary replicas can I have in SQL Server 2019?

SQL Server 2019 (15. x) increases the maximum number of synchronous replicas to 5, up from 3 in SQL Server 2017 (14. x). You can configure this group of five replicas to have automatic failover within the group.

Are replicas primary or secondary?

A secondary source is not an original source. It has no direct physical connection to the person or event being studied. Examples of secondary sources might include: history books, articles in encyclopedias, prints of paintings, replicas of art objects, reviews of research, academic articles.

How many synchronous secondary replicas are there in SQL Server 2014?

With SQL Server 2014, AlwaysOn Availability Groups now supports up to eight secondary replicas.

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