Posted On: Dec 15, 2022

AWS Trusted Advisor now helps customers improve fault tolerance with new checks for Amazon ElastiCache for Redis, Amazon MemoryDB for Redis, and AWS CloudHSM. AWS Trusted Advisor evaluates your AWS account with automated best practice checks and provides cloud optimization recommendations to reduce costs, improve performance, increase security, and monitor service quotas. You can find more information about the checks here.

The new fault tolerance checks for Amazon ElastiCache Multi-AZ Clusters and Amazon MemoryDB Multi-AZ Clusters alert customers when they're running in a Single-AZ configuration and provide recommendations to customers on how to enable Multi-AZ with automatic failover in their ElastiCache or MemoryDB clusters. By enabling Multi-AZ with automatic failover, customers benefit from minimal administrative intervention, improved fault tolerance, and enhanced availability of their Redis clusters. For more information, see Minimizing downtime in ElastiCache with Multi-AZ or Minimizing downtime in MemoryDB with Multi-AZ.

AWS CloudHSM clusters running HSM instances in a single AZ will alert customers when they are running clusters in a single AZ for more than an hour. We recommend customers run their production clusters in a multi-AZ configuration to run with high availability. For more information, see AWS CloudHSM. AWS Business Support and AWS Enterprise Support customers can access the new fault tolerance checks from the AWS Trusted Advisor Console, or via the AWS Support API. The new fault tolerance checks for ElastiCache, MemoryDB, and CloudHSM are generally available in the following regions: US East (N. Virginia), Europe (Ireland), US West (N. California), Asia Pacific (Singapore), Asia Pacific (Tokyo), US West (Oregon), South America (São Paulo), Asia Pacific (Sydney), Europe (Frankfurt), Asia Pacific (Seoul), Asia Pacific (Mumbai), US East (Ohio), Canada (Central), Europe (London), Europe (Paris), Asia Pacific (Osaka), Europe (Stockholm). For more information please visit the AWS Trusted Advisor webpage and the documentation site for a complete list of check references. Please visit the user guide to learn how to create alarms in Trusted Advisor using Amazon CloudWatch.