Amazon Elastic Compute Cloud
API Reference (API Version 2015-10-01)


Attaches an EBS volume to a running or stopped instance and exposes it to the instance with the specified device name.

Encrypted EBS volumes may only be attached to instances that support Amazon EBS encryption. For more information, see Amazon EBS Encryption in the Amazon Elastic Compute Cloud User Guide.

For a list of supported device names, see Attaching an EBS Volume to an Instance. Any device names that aren't reserved for instance store volumes can be used for EBS volumes. For more information, see Amazon EC2 Instance Store in the Amazon Elastic Compute Cloud User Guide.

If a volume has an AWS Marketplace product code:

  • The volume can be attached only to a stopped instance.

  • AWS Marketplace product codes are copied from the volume to the instance.

  • You must be subscribed to the product.

  • The instance type and operating system of the instance must support the product. For example, you can't detach a volume from a Windows instance and attach it to a Linux instance.

For an overview of the AWS Marketplace, see Introducing AWS Marketplace.

For more information about EBS volumes, see Attaching Amazon EBS Volumes in the Amazon Elastic Compute Cloud User Guide.

Request Parameters

For information about the common parameters that all actions use, see Common Query Parameters.


The device name to expose to the instance (for example, /dev/sdh or xvdh).

Type: String

Required: Yes


Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation. Otherwise, it is UnauthorizedOperation.

Type: Boolean

Required: No


The ID of the instance.

Type: String

Required: Yes


The ID of the EBS volume. The volume and instance must be within the same Availability Zone.

Type: String

Required: Yes

Response Elements

The following elements are returned.


Information about the volume attachment.

Type: VolumeAttachment


The ID of the request.

Type: String


For information about the errors that are common to all actions, see Common Client Errors.


Example 1

This example request attaches the volume with the ID vol-1234567890abcdef0 to the instance with the ID i-1234567890abcdef0 and exposes it as /dev/sdh.

Sample Request

Sample Response

<AttachVolumeResponse xmlns="">