AttachVolume - Amazon Elastic Compute Cloud


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

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

After you attach an EBS volume, you must make it available. For more information, see Make an EBS volume available for use.

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 more information, see Attach an Amazon EBS volume to an instance in the Amazon Elastic Compute Cloud User Guide.

Request Parameters

The following parameters are for this specific action. For more information about required and optional parameters that are common to all actions, see Common Query Parameters.


The device name (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 by the service.


The time stamp when the attachment initiated.

Type: Timestamp


Indicates whether the EBS volume is deleted on instance termination.

Type: Boolean


The device name.

Type: String


The ID of the instance.

Type: String


The ID of the request.

Type: String


The attachment state of the volume.

Type: String

Valid Values: attaching | attached | detaching | detached | busy


The ID of the volume.

Type: String


For information about the errors that are common to all actions, see Common client error codes.


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 &VolumeId=vol-1234567890abcdef0 &InstanceId=i-1234567890abcdef0 &Device=/dev/sdh &AUTHPARAMS

Sample Response

<AttachVolumeResponse xmlns=""> <requestId>59dbff89-35bd-4eac-99ed-be587EXAMPLE</requestId> <volumeId>vol-1234567890abcdef0</volumeId> <instanceId>i-1234567890abcdef0</instanceId> <device>/dev/sdh</device> <status>attaching</status> <attachTime>YYYY-MM-DDTHH:MM:SS.000Z</attachTime> </AttachVolumeResponse>

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: