If you create an Autoscale policy for AWS, make sure that subsequent instance types that are selected on each trigger are supported in the region where the provisioning took place.
For example, an administrator adds an Autoscale policy to add CPU. If the selected EC2 instance types on subsequent triggers are c3x.large, c1.xlarge, and cc1.4xlarge, the administrator must make sure that all of these instance types are available in the region.
