I want to improve fault tolerance for my ElastiCache cluster running Redis. How do I enable Multi-AZ replication and automatic failover?

Follow the instructions at Minimizing Down Time: Multi-AZ with Automatic Failover. You can enable Multi-AZ replication with automatic failover when you create a new Redis cluster, or for existing clusters with an existing replication group.

Note: When implementing a replication solution, be sure that you’ve allocated enough memory to create a point-in-time Redis snapshot.

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Published: 2016-09-02

Updated: 2018-05-08