High availability - AWS Prescriptive Guidance

High availability

You can use any SQL Server-supported replication technology with your SQL Server database on Amazon EC2 to achieve high availability, data protection, and disaster recovery. Some of the common solutions are log shipping, database mirroring, Always On availability groups, and Always On Failover Cluster Instances.

The following diagram shows how you can use SQL Server on Amazon EC2 across multiple Availability Zones within a single AWS Region. The primary database is a read-write database, and the secondary database is configured with log shipping, database mirroring, or Always On availability groups for high availability. All the transaction data from the primary database is transferred and can be applied to the secondary database asynchronously for log shipping, and asynchronously for Always On availability groups and mirroring.


      SQL Server on Amazon EC2 in a Multi-AZ configuration in one AWS Region