Posted On: Nov 19, 2018

Amazon ElastiCache for Redis now allows you to scale your Redis Cluster environment up to 250 nodes and 250 shards. This increase lets you store over 16.6x more in-memory data and enables configurations with higher write throughput by lifting the previous 15 shard limit. This increase also enables a maximum in-memory data size of 170.6 TB. 

The default maximum cluster size limit remains 90, but you can request a service limit increase for “Nodes per cluster per instance type” using the AWS Support Center.

This feature is available in all regions and for all existing and new ElastiCache for Redis Cluster environments. To create a new cluster or scale your existing cluster, log in to the AWS Management Console.