You can call this operation to resize a cloud disk. You can resize both system disks and data disks.

Description

Note Before calling this operation, you must check the partition format of the cloud disk. If an existing partition of the cloud disk is created by using MBR, you cannot resize the cloud disk to greater than or equal to 2 TiB. Otherwise, data may be lost. If the MBR partition format is used, we recommend that you create and attach another data disk. Format a GPT partition and copy the data in the MBR partition to the GPT partition. For more information, see Resize cloud disks offline.
  • You can resize the following cloud disk types: basic disks (cloud), ultra disks (cloud_efficiency), SSD disks (cloud_ssd), and ESSD disks (cloud_essd).
  • You cannot resize a cloud disk when a snapshot is being created for it.
  • The instance to which the disk is attached must be in the running or stopped state.
  • After resizing a cloud disk, you must restart the instance in the console or call the RebootInstance operation to validate the operation.
  • After you resize a cloud disk, its partitions and file systems will not change. You can allocate the storage space after resizing.

Debugging

Alibaba Cloud provides OpenAPI Explorer to simplify API usage. You can use OpenAPI Explorer to search for APIs, call APIs, and dynamically generate SDK example code.

Request parameters

Parameter Type Required Example Description
DiskId String Yes d-diskid

The ID of the cloud disk to be resized.
NewSize Integer Yes 1900

The new disk capacity that you want to specify. Unit: GiB. Valid values:

  • Basic disk (cloud): 5 to 2,000
  • Ultra disk (cloud_efficiency): 20 to 6,144
  • SSD disk (cloud_ssd): 20 to 6,144
  • ESSD disk (cloud_essd): 20 to 32,768

The new disk capacity must be larger than the original disk capacity. If the original capacity of a cloud disk is less than 6 TiB, you cannot resize it to more than 6 TiB.

Action String No ResizeDisk

The operation that you want to perform. Set the value to ResizeDisk.
Type String No offline

The method that you use to resize the cloud disk. Valid values:

  • offline: In this method, you need to restart the instance to validate the operation. This is the default value.
  • online: In this method, you do not need to restart the instance. This method can only be used on data disk, and only ultra disks and SSD disks are supported.
ClientToken String No 123e4567-e89b-12d3-a456-426655440000

The client token that is used to ensure the idempotence of the request. You can use the client to generate this value, but you must ensure that it is unique among different requests. The ClientToken parameter can contain only ASCII characters, and cannot exceed 64 characters in length. For more information, see How to ensure idempotence.

Response parameters

Parameter Type Example Description
RequestId String 473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E

The ID of the request.

Examples

Sample requests

https://ecs.aliyuncs.com/?Action=ResizeDisk
&DiskId=d-diskid
&NewSize=1900
&ClientToken=123e4567-e89b-12d3-a456-426655440000
&<Common request parameters>

Sample success responses

XML format 

<ResizeDiskResponse>
  <RequestId>F3CD6886-D8D0-4FEE-B93E-1B73239673DE</RequestId>
</ResizeDiskResponse>

JSON format 

{
	"RequestId":"F3CD6886-D8D0-4FEE-B93E-1B73239673DE"
}

Error codes

HTTP status code Error code Error message Description
403 InvalidDataDiskSize.ValueNotSupported The specified DataDisk.n.Size beyond the permitted range, or the capacity of snapshot exceeds the size limit of the specified disk category. The error message returned because the maximum size of the specified data disk is reached.
404 InvalidDiskId.NotFound The specified disk does not exist. The error message returned because the specified DiskId parameter does not exist. Check whether the DiskId parameter is correct.
404 InvalidInstanceId.NotFound The specified InstanceId does not exist. The error message returned because the specified InstanceId parameter does not exist.
403 OperationDenied The type of the disk does not support the operation. The error message returned because the operation is not supported by the specified data disk type.
403 OperationDenied The status of the disk or the instance that the disk is attaching with does not support the operation. The error message returned because the operation is not supported while the disk or instance is in the current state.
403 InvalidDiskSize.TooSmall Specified new disk size is less than the original disk size. The error message returned because the specified new disk capacity is smaller than the original disk capacity.
403 InvalidDiskSize.TooLarge Specified new disk size is beyond the permitted range. The error message returned because the specified new disk capacity is greater than the maximum capacity.
403 InstanceExpiredOrInArrears The specified operation is denied as your prepay instance is expired (prepay mode) or in arrears (afterpay mode). The error message returned because the subscription instance has expired. Renew the instance and try again.
403 DiskError IncorrectDiskStatus The error message returned because the specified DiskStatus parameter is invalid.
403 DiskInArrears The specified operation is denied as your disk owing fee. The error message returned because the disk has an overdue payment.
403 IncorrectInstanceStatus The current status of the resource does not support this operation. The error message returned because the operation is not supported while the resource is in the current state.
500 InternalError The request processing has failed due to some unknown error. The error message returned because an internal error has occurred. Try again later. If the problem persists, submit a ticket.
403 DiskCreatingSnapshot The operation is denied due to a snapshot of the specified disk is not completed yet. The error message returned because a snapshot is being created for the specified disk.
400 InvalidDataDiskCategory.ValueNotSupported %s The error message returned because the parameter is not supported.
400 InvalidParameter.Conflict %s The error message returned because the parameter is conflicting with another parameter.
400 InvalidDataDiskSize.ValueNotSupported %s The error message returned because the parameter is not supported.
403 InvalidDiskSize Specified new disk size is less than or equal the original disk size. The error message returned because the specified new disk capacity is smaller than or equal to the original disk capacity.
400 IncompleteParamter Some fields cannot be null in this request. The error message returned because a required parameter is not specified.
403 Operation.Conflict The operation may conflict with others. The error message returned because the operation is conflicting with another operation.
403 InstanceLockedForSecurity The instance is locked due to security. The error message returned because the operation is not supported while the resource is locked to ensure security.
403 IncorrectDiskStatus The current disk status does not support this operation. The error message returned because the operation is not supported while the disk is in the current state. Ensure that the disk is available and has no overdue payments.
403 UserNotInTheWhiteList The user is not in disk white list. The error message returned because you are not authorized to use the specified disk.
400 InvalidRegionId.MalFormed The specified RegionId is not valid The error message returned because the specified RegionId parameter is invalid.
403 InvalidDiskCategory.NotSupported The specified disk category is not supported. The error message returned because the specified disk type is not supported.
400 InvalidParam.Type The specified type is not supported. The error message returned because the specified parameter is invalid.
403 InvalidRegion.NotSupport The specified region does not support resize online. The error message returned because online resizing is not available in the specified region.
403 InvalidDiskCategory.NotSupported The specified disk category does not support resize online. The error message returned because online resizing is not supported by the specified disk type.
403 IncorrectInstanceStatus The current status of the resource does not support resize online. The error message returned because the operation is not supported while the resource is in the current state.
403 IncorrectDiskStatus The current status of the resource does not support resize online The error message returned because online resizing is not supported while the resource is in the current state.
403 InvalidOperation.InstanceTypeNotSupport The instance type of the specified instance does not support resize online. The error message returned because online resizing is not supported by the instance to which the disk is attached.

View error codes