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Amazon ElastiCache
User Guide (API Version 2015-02-02)

Supported Node Types

The following node types are supported by ElastiCache. Generally speaking, the current generation types provide more memory and computational power at lower cost when compared to their equivalent previous generation counterparts.

  • General purpose:

    • Current generation:

      T2 node types: cache.t2.micro, cache.t2.small, cache.t2.medium

      M3 node types: cache.m3.medium, cache.m3.large, cache.m3.xlarge, cache.m3.2xlarge

      M4 node types: cache.m4.large, cache.m4.xlarge, cache.m4.2xlarge, cache.m4.4xlarge, cache.m4.10xlarge

    • Previous generation: (not recommended)

      T1 node types: cache.t1.micro

      M1 node types: cache.m1.small, cache.m1.medium, cache.m1.large, cache.m1.xlarge

  • Compute optimized:

    • Previous generation: (not recommended)

      C1 node types: cache.c1.xlarge

  • Memory optimized:

    • Current generation:

      R3 node types: cache.r3.large, cache.r3.xlarge, cache.r3.2xlarge, cache.r3.4xlarge, cache.r3.8xlarge

    • Previous generation: (not recommended)

      M2 node types: cache.m2.xlarge, cache.m2.2xlarge, cache.m2.4xlarge

Additional node type info

  • All T2 instances are created in an Amazon Virtual Private Cloud (Amazon VPC).

  • Redis backup and restore is not supported for T2 instances.

  • Redis append-only files (AOF) are not supported for T1 or T2 instances.

  • Redis Multi-AZ with automatic failover is not supported on T1 instances.

  • Redis Multi-AZ with automatic failover is supported on T2 instances only when running Redis (cluster mode enabled) - version 3.2.4 or later with the default.redis3.2.cluster.on parameter group or one derived from it.

  • Redis configuration variables appendonly and appendfsync are not supported on Redis version 2.8.22 and later.