Help Center/ Elastic Volume Service/ User Guide/ Detaching and Deleting an EVS Disk/ Unsubscribing from or Deleting an EVS Disk
Updated on 2025-07-30 GMT+08:00
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Unsubscribing from or Deleting an EVS Disk

Scenarios

If an EVS disk is no longer used, you can delete the disk to release the virtual resources. After you permanently delete an EVS disk, EVS immediately destroys the metadata to ensure that data can no longer be accessed. In addition, the physical storage space of the EVS disk is reclaimed and cleared before being re-assigned. For any new disk created based on the re-assigned physical space, before data is written to the disk, EVS returns zero for all the read requests to the disk.

If you have enabled the EVS recycle bin, when you delete a disk, whether the disk will be deleted permanently or moved to the recycle bin depends on your recycle bin policy. The recycle bin is disabled by default. If you need to use it, enable it on the console. For details, see Enabling the Recycle Bin.

Yearly/Monthly disks cannot be deleted. You can unsubscribe from them if needed. System disks must be unsubscribed from together with their servers. For how to unsubscribe from data disks, see Table 1.

Table 1 Unsubscription scenarios of data disks

Unsubscription Scenario

Sub-scenario

Reference

Unsubscribing from non-shared, yearly/monthly data disks that were purchased together with or later added to a yearly/monthly server

Unsubscribing from data disks when unsubscribing from the server

How Do I Unsubscribe from ECSs?

Unsubscribing from data disks separately

Unsubscribing from a Yearly/Monthly Disk on the EVS Console

Unsubscribing from a Yearly/Monthly Disk on the ECS Console

Unsubscribing from shared, yearly/monthly data disks that were purchased together with or later added to a yearly/monthly server

Unsubscribing from data disks separately

Unsubscribing from a Yearly/Monthly Disk on the EVS Console

Unsubscribing from yearly/monthly data disks that were purchased on the EVS console

Unsubscribing from data disks separately

Unsubscribing from a Yearly/Monthly Disk on the EVS Console

Constraints

  • The disk status is Available, Error, Expansion failed, Restoration failed, or Rollback failed.
  • The disk is not locked by any service.
  • The shared disk has been detached from all its servers.
  • The disk is not added to any replication pair in the Storage Disaster Recovery Service (SDRS). For any disk already added to a replication pair, you need to first delete the replication pair and then delete the disk.
  • Yearly/Monthly system disks cannot be unsubscribed from separately. They must be unsubscribed from together with their servers.
  • Non-shared, yearly/monthly data disks purchased together with or later added to a yearly/monthly server have the same expiration time as the server. They can be unsubscribed from together with the server or separately when their statuses are In-use, Available, or Error.
  • Yearly/Monthly data disks purchased on the EVS console have different expiration times as the server. They can be unsubscribed from separately.

When you delete a disk, all the disk data including the legacy snapshots created for this disk will be deleted.

A deleted disk cannot be recovered.

Billing

  • For a yearly/monthly disk, the billing stops after the disk is successfully unsubscribed from, and the refund is calculated as follows: Refund = Your actual payment - Amount due - Handling fees. For more information, see How Do I View the Refund for My Resource Unsubscription?
  • For a pay-per-use disk, the billing stops after the disk is successfully deleted.

Prerequisites

Video Tutorial

  1. Sign in to the EVS console.
  2. In the disk list, locate the target disk and choose More > Delete in the Operation column.
  3. (Optional) If multiple disks are to be deleted, select in front of each target disk and click Delete in the upper left area of the list.
  4. On the displayed page, confirm the information and click OK.

    • If operation protection is enabled, select a verification method and obtain and enter the verification code.

      Supported verification methods include SMS, email, and virtual MFA device. If none of these are associated, click Associate.

    • If operation protection is not enabled, enter DELETE in the text box below.

    For details about how to enable or disable operation protection, see Operation Protection.

  5. Click OK.

    • If the EVS recycle bin is disabled, the disk will be deleted immediately.

      When the disk disappears from the disk list, the disk has been deleted.

    • If the EVS recycle bin is enabled, the disk will be moved to the recycle bin if the days elapsed since the disk creation is greater than that configured in the recycle bin policy. To permanently delete the disk, go to the recycle bin, find the disk, and delete it from the bin.

      When the disk disappears from the recycle bin, the disk has been deleted.

  1. Sign in to the EVS console.
  2. In the disk list, locate the target disk and choose More > Unsubscribe in the Operation column.

    If the Unsubscribe button is grayed out, detach the disk and then unsubscribe from it.

  3. On the resource unsubscription page, confirm the information and select the reason for unsubscription. Then, select related check boxes and click Confirm.

    • If the EVS recycle bin is disabled, the disk will be unsubscribed from immediately.

      When the disk disappears from the disk list, the disk has been unsubscribed from.

    • If the EVS recycle bin is enabled, the disk will be moved to the recycle bin if the days elapsed since the disk creation is greater than that configured in the recycle bin policy. To permanently delete the disk, go to the recycle bin, find the disk, and delete it from the bin.

      When the disk disappears from the recycle bin, the disk has been deleted.

  • When you unsubscribe from a server, the yearly/monthly data disks purchased together with the server and those added later will also be unsubscribed from. For details, see How Do I Unsubscribe from ECSs?
  • To unsubscribe from non-shared data disks separately, perform the following steps:
  1. Sign in to the ECS console.
  2. In the server list, locate the target server, choose More > Change in the Operation column.
  3. In the displayed dialog box, select Delete Disk.

    Figure 1 Selecting a change type

  4. Select the disks you want to delete and click Next.
  5. On the deletion page, confirm the information, select "I understand a handling fee will be charged for this unsubscription", and click Submit.
  6. After the unsubscription is submitted:

    • If the EVS recycle bin is disabled, the disk will be unsubscribed from immediately.

      When the disk disappears from the disk list, the disk has been unsubscribed from.

    • If the EVS recycle bin is enabled, the disk will be moved to the recycle bin if the days elapsed since the disk creation is greater than that configured in the recycle bin policy. To permanently delete the disk, go to the recycle bin, find the disk, and delete it from the bin.

      When the disk disappears from the recycle bin, the disk has been deleted.

Related Links

For more deletion FAQs, see Deletion.

Parent Topic: Detaching and Deleting an EVS Disk