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Previous Generation Nodes

Amazon ElastiCache is ending support for T1, M1, M2, M3, R3 cache node types

Amazon Web Services cloud offers Previous Generation Nodes for users who have optimized their applications around these nodes and have yet to upgrade. Previous Generation on-demand nodes will reach End-of-Life on October 15, 2024 in Amazon Web Services China (Beijing) region, operated by Sinnet and Amazon Web Services (Ningxia) region operated by NWCD. We recommend that you migrate those nodes to the newer generation node types before October 15, 2024.

Upgrade paths

We encourage you to use the latest generation of nodes to get the best performance, but we will continue to support Previous Generation Nodes after new nodes launch. If you are currently using a Previous Generation Node and would like to see which one would be a recommended upgrade path, see the table below.

M1/M3 to M5, M6 or M7

M5 instances provide the latest Intel Xeon or Arm processors. With M5, you get a higher performing CPU with support for AVX-512 instructions, up to 384 GiB of RAM, and up to 25 Gbps of networking bandwidth, all at a lower price point then our previous generation instances. Amazon EC2 M6g/M7g instances are powered by Arm-based Amazon Graviton processors. Graviton instances offer a balance of compute, memory, and networking resources for a broad set of workloads.

Previous Generation Node type	Recommended Node Type
cache.m1.small	cache.t3.small
cache.m1.medium	cache.t3.medium
cache.m1.large	cache.m5.large
cache.m1.xlarge	cache.m5.xlarge
cache.m2.xlarge	cache.m5.xlarge
cache.m2.2xlarge	cache.m5.2xlarge
cache.m2.4xlarge	cache.m6g.4xlarge
cache.m3.medium	cache.t3.medium
cache.m3.large	cache.m5.large
cache.m3.xlarge	cache.m5.xlarge
cache.m3.2xlarge	cache.m5.2xlarge

M2/R3 to R5, R6, or R7

The R5 family of instances provide a newer Intel Xeon processor, up to 636.61 GiB of RAM, are EBS optimized, and support Enhanced Networking with up to 25 Gbps offering lower latency and low jitter. Amazon EC2 R6g/R7g instances are powered by Arm-based Amazon Graviton processors (currently Graviton3 instances are not available in all Amazon Web Services Regions). Graviton instances are ideal for running memory-intensive workloads.

Previous Generation Node Type	Recommended Node Type
cache.r3.large	cache.r5.large
cache.r3.xlarge	cache.r5.xlarge
cache.r3.2xlarge	cache.r5.2xlarge
cache.r3.4xlarge	cache.r5.4xlarge
cache.r3.8xlarge	cache.r6g.8xlarge

T1/M1 to T3 or T4g

T3 and T4g nodes are Burstable Performance Nodes that provide a baseline level of CPU performance with the ability to burst above the baseline. They are recommended for workloads that don't use the full CPU often or consistently, but occasionally need to burst to higher CPU performance, such as test and development environments, as well as small workloads. Both T3 and T4g nodes are less expensive than m1.small, m1.medium, and t1.micro nodes in most regions.