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StartInstances
Description
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.
For more information, see Using Amazon EBS-Backed AMIs and Instances.
Request Parameters
InstanceId.nOne or more instance IDs.
Type: String
Default: None
Required: Yes
Response Elements
The following elements are returned in a
StartInstancesResponse element.
requestIdThe ID of the request.
Type: xsd:string
instancesSetA list of instance state changes. Each change is wrapped in an
itemelement.Type: InstanceStateChangeType
Examples
Example Request
This example starts the i-10a64379 instance.
https://ec2.amazonaws.com/?Action=StartInstances &InstanceId.1=i-10a64379 &AUTHPARAMS
Example Response
<StartInstancesResponse xmlns="http://ec2.amazonaws.com/doc/2013-02-01/">
<requestId>59dbff89-35bd-4eac-99ed-be587EXAMPLE</requestId>
<instancesSet>
<item>
<instanceId>i-10a64379</instanceId>
<currentState>
<code>0</code>
<name>pending</name>
</currentState>
<previousState>
<code>80</code>
<name>stopped</name>
</previousState>
</item>
</instancesSet>
</StartInstancesResponse>
