Starts an Amazon EBS-backed AMI that you've previously stopped.
Instances that use Amazon EBS volumes as their root devices can be quickly stopped and started.
When an instance is stopped, the compute resources are released and you are not billed for hourly instance
usage. However, your root partition Amazon EBS volume remains, continues to persist your data, and
you are charged for Amazon EBS volume usage. You can restart your instance at any time. Each time
you transition an instance from stopped to started, we charge a full instance hour, even if transitions
happen multiple times within a single hour.
Note! Before stopping an instance, make sure it is in a state from which it can be restarted.
Stopping an instance does not preserve data stored in RAM.
Performing this operation on an instance that uses an instance store as its root device returns
an error.