modify-volume¶

Description¶

You can modify several parameters of an existing EBS volume, including volume size, volume type, and IOPS capacity. If your EBS volume is attached to a current-generation EC2 instance type, you may be able to apply these changes without stopping the instance or detaching the volume from it. For more information about modifying an EBS volume running Linux, see Modifying the Size, IOPS, or Type of an EBS Volume on Linux . For more information about modifying an EBS volume running Windows, see Modifying the Size, IOPS, or Type of an EBS Volume on Windows .

When you complete a resize operation on your volume, you need to extend the volume’s file-system size to take advantage of the new storage capacity. For information about extending a Linux file system, see Extending a Linux File System . For information about extending a Windows file system, see Extending a Windows File System .

You can use CloudWatch Events to check the status of a modification to an EBS volume. For information about CloudWatch Events, see the Amazon CloudWatch Events User Guide . You can also track the status of a modification using DescribeVolumesModifications . For information about tracking status changes using either method, see Monitoring Volume Modifications .

With previous-generation instance types, resizing an EBS volume may require detaching and reattaching the volume or stopping and restarting the instance. For more information, see Modifying the Size, IOPS, or Type of an EBS Volume on Linux and Modifying the Size, IOPS, or Type of an EBS Volume on Windows .

If you reach the maximum volume modification rate per volume limit, you will need to wait at least six hours before applying further modifications to the affected EBS volume.

Synopsis¶

  modify-volume
[--dry-run | --no-dry-run]
--volume-id <value>
[--size <value>]
[--volume-type <value>]
[--iops <value>]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]
[--cli-auto-prompt <value>]

Options¶

--dry-run | --no-dry-run (boolean)

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 .

--volume-id (string)

The ID of the volume.

--size (integer)

The target size of the volume, in GiB. The target volume size must be greater than or equal to than the existing size of the volume. For information about available EBS volume sizes, see Amazon EBS Volume Types .

Default: If no size is specified, the existing size is retained.

--volume-type (string)

The target EBS volume type of the volume.

Default: If no type is specified, the existing type is retained.

Possible values:

standard

io1

gp2

sc1

st1

--iops (integer)

The target IOPS rate of the volume.

This is only valid for Provisioned IOPS SSD (io1 ) volumes. For more information, see Provisioned IOPS SSD (io1) Volumes .

Default: If no IOPS value is specified, the existing value is retained.

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

--cli-auto-prompt (boolean) Automatically prompt for CLI input parameters.

See ‘aws help’ for descriptions of global parameters.

Examples¶

Example 1: To modify a volume by changing its size

The following modify-volume example changes the size of the specified volume to 150GB.

Command:

aws ec2 modify-volume --size 150 --volume-id vol-1234567890abcdef0

Output:

{
    "VolumeModification": {
        "TargetSize": 150,
        "TargetVolumeType": "io1",
        "ModificationState": "modifying",
        "VolumeId": " vol-1234567890abcdef0",
        "TargetIops": 100,
        "StartTime": "2019-05-17T11:27:19.000Z",
        "Progress": 0,
        "OriginalVolumeType": "io1",
        "OriginalIops": 100,
        "OriginalSize": 100
    }
}

Example 2: To modify a volume by changing its type, size, and IOPS value

The following modify-volume example changes the volume type to Provisioned IOPS SSD, sets the target IOPS rate to 10000, and sets the volume size to 350GB.

aws ec2 modify-volume \
    --volume-type io1 \
    --iops 10000 \
    --size 350 \
    --volume-id vol-1234567890abcdef0

Output:

{
    "VolumeModification": {
        "TargetSize": 350,
        "TargetVolumeType": "io1",
        "ModificationState": "modifying",
        "VolumeId": "vol-0721c1a9d08c93bf6",
        "TargetIops": 10000,
        "StartTime": "2019-05-17T11:38:57.000Z",
        "Progress": 0,
        "OriginalVolumeType": "gp2",
        "OriginalIops": 150,
        "OriginalSize": 50
    }
}

Output¶

VolumeModification -> (structure)

Information about the volume modification.

VolumeId -> (string)

The ID of the volume.

ModificationState -> (string)

The current modification state. The modification state is null for unmodified volumes.

StatusMessage -> (string)

A status message about the modification progress or failure.

TargetSize -> (integer)

The target size of the volume, in GiB.

TargetIops -> (integer)

The target IOPS rate of the volume.

TargetVolumeType -> (string)

The target EBS volume type of the volume.

OriginalSize -> (integer)

The original size of the volume, in GiB.

OriginalIops -> (integer)

The original IOPS rate of the volume.

OriginalVolumeType -> (string)

The original EBS volume type of the volume.

Progress -> (long)

The modification progress, from 0 to 100 percent complete.

StartTime -> (timestamp)

The modification start time.

EndTime -> (timestamp)

The modification completion or failure time.

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