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 might be able to apply these changes without stopping the instance or detaching the volume from it. For more information about modifying EBS volumes, see Amazon EBS Elastic Volumes (Linux instances) or Amazon EBS Elastic Volumes (Windows instances).

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 more information, see Extend a Linux file system or Extend 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 Monitor the progress of volume modifications .

With previous-generation instance types, resizing an EBS volume might require detaching and reattaching the volume or stopping and restarting the instance.

If you reach the maximum volume modification rate per volume limit, you must 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>]
[--throughput <value>]
[--multi-attach-enabled | --no-multi-attach-enabled]
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <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 the existing size of the volume.

The following are the supported volumes sizes for each volume type:

gp2 and gp3 : 1-16,384

io1 and io2 : 4-16,384

st1 and sc1 : 125-16,384

standard : 1-1,024

Default: The existing size is retained.

--volume-type (string)

The target EBS volume type of the volume. For more information, see Amazon EBS volume types in the Amazon Elastic Compute Cloud User Guide .

Default: The existing type is retained.

Possible values:

standard

io1

io2

gp2

sc1

st1

gp3

--iops (integer)

The target IOPS rate of the volume. This parameter is valid only for gp3 , io1 , and io2 volumes.

The following are the supported values for each volume type:

gp3 : 3,000-16,000 IOPS

io1 : 100-64,000 IOPS

io2 : 100-64,000 IOPS

Default: The existing value is retained if you keep the same volume type. If you change the volume type to io1 , io2 , or gp3 , the default is 3,000.

--throughput (integer)

The target throughput of the volume, in MiB/s. This parameter is valid only for gp3 volumes. The maximum value is 1,000.

Default: The existing value is retained if the source and target volume type is gp3 . Otherwise, the default value is 125.

Valid Range: Minimum value of 125. Maximum value of 1000.

--multi-attach-enabled | --no-multi-attach-enabled (boolean)

Specifies whether to enable Amazon EBS Multi-Attach. If you enable Multi-Attach, you can attach the volume to up to 16 Nitro-based instances in the same Availability Zone. This parameter is supported with io1 and io2 volumes only. For more information, see Amazon EBS Multi-Attach in the Amazon Elastic Compute Cloud User Guide .

--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.

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.

TargetThroughput -> (integer)

The target throughput of the volume, in MiB/s.

TargetMultiAttachEnabled -> (boolean)

The target setting for Amazon EBS Multi-Attach.

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.

OriginalThroughput -> (integer)

The original throughput of the volume, in MiB/s.

OriginalMultiAttachEnabled -> (boolean)

The original setting for Amazon EBS Multi-Attach.

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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