The Change RDS Instance Class action can be used to change the class (or machine size) of a running RDS instance. Later, it can (optionally) be changed back.

For example, at 8am, a micro (db.t1.micro) instance can be upgraded to a large instance type (db.m1.large), then 8 hours later, it can be reverted back to it's original size (db.t1.micro).

The process of changing an RDS instance's class requires the instance to be offline briefly while the modification occurs.

Please see Common Action Settings for a description of settings common to all action types.

Database Instance ID

Indicate the instance identifier of your RDS instance. This instance must reside in the region specified.

Instance Class

Specify the new instance class (machine size) that the instance should be changed to.

Revert the Instance Class

Indicate whether the instance class should be automatically reverted later. The running time of the instance must also be specified if this is enabled.

Running Duration

Indicate the length of time the instance should remain at the new instance class before it is reverted. This value is only required if "Revert the Instance Class" is enabled.

The following Amazon AWS commands are used. The access key should have permission to execute all of them.