ec2-attach-volume

Description

Attaches an Amazon EBS volume to a running instance and exposes it as the specified device.

	Note
Windows instances currently support devices xvda through xvdp. Devices xvda and xvdb are reserved by the operating system, xvdc is assigned to drive C:\, and, depending on the instance type, devicesxvdd through xvde might be reserved by the instance stores. Any device that is not reserved can be attached to an Amazon EBS volume. For a list of devices that are reserved by the instance stores, go to the

Windows instances currently support devices xvda through xvdp. Devices xvda and xvdb are reserved by the operating system, xvdc is assigned to drive C:\, and, depending on the instance type, devicesxvdd through xvde might be reserved by the instance stores. Any device that is not reserved can be attached to an Amazon EBS volume. For a list of devices that are reserved by the instance stores, go to the

Amazon Elastic Compute Cloud Developer Guide.

Syntax

ec2-attach-volume volume_id --instance instance_id --device device

Options

Name Description Required

Name	Description	Required
`volume_id`	The ID of the Amazon EBS volume. The volume and instance must be within the same Availability Zone and the instance must be running. Type: String Default: None Example: vol-4d826724	Yes
`--instance` `instance_id`	The ID of the instance to which the volume attaches. The volume and instance must be within the same Availability Zone and the instance must be running. Type: String Default: None Example: i-6058a509	Yes
`--device` `device`	Specifies how the device is exposed to the instance (e.g., /dev/sdh). Type: String Default: None Example: /dev/sdf (Linux and UNIX) or xvdf (Windows)	Yes

volume_id

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

Type: String

Default: None

Example: vol-4d826724

Yes

--instance instance_id

The ID of the instance to which the volume attaches. The volume and instance must be within the same Availability Zone and the instance must be running.

Type: String

Default: None

Example: i-6058a509

Yes

--device device

Specifies how the device is exposed to the instance (e.g., /dev/sdh).

Type: String

Default: None

Example: /dev/sdf (Linux and UNIX) or xvdf (Windows)

Yes

Output

The command returns a table that contains the following information:

ATTACHMENT identifier
ID of the volume
ID of the instance
The device as it is exposed to the instance
Volume state (e.g., attaching, attached)
Time stamp when attachment initiated

Amazon EC2 displays errors on stderr.

Examples

Example Request

This example attaches volume vol-4d826724 to instance i-6058a509 and exposes it as /dev/sdh. For information on standard storage locations, go to the Amazon Elastic Compute Cloud Developer Guide.

PROMPT> ec2-attach-volume vol-4d826724 --instance i-6058a509 --device /dev/sdh
ATTACHMENT vol-4d826724 i-6058a509 /dev/sdh attaching 2008-02-14T00:15:00+0000

ec2-attach-volume