title: Scaling Up an Elasticache Instance?
body: <p>I'm currently running a site which uses Redis through Elasticache. We want to move to a larger instance with more RAM since we're getting to around 70% full on our current instance type. </p>
  
  <p>Is there a way to scale up an Elasticache instance in the same way a RDS instance can be scaled?</p>
  
  <p>Alternative, I wanted to create a replica group and add a bigger instance to it. Then, once it's replicated and running, promote the new instance to be the master. This doesn't seem possible through the AWS console as the replicas are created with the same instance type as the primary node.</p>
  
  <p>Am I missing something or is it simply a use case which can't be achieved. I understand that I can start a bigger instance and manually deal with replication then move the web servers over to use the new server but this would require some downtime due to DNS migration, etc.</p>
  
  <p>Thanks!,
  Alan</p>