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.
Unsubscription Scenario |
Sub-scenario |
Reference |
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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 |
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Unsubscribing from data disks separately |
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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 |
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Unsubscribing from yearly/monthly data disks that were purchased on the EVS console |
Unsubscribing from data disks separately |
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.

When you delete a disk, all the disk data including the 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
- Ensure that separately purchased disks are detached. For details, see Detaching an EVS Disk.
- You are advised to back up data. You can create standard snapshots or use CBR to create disk backups.
Video Tutorial
- Sign in to the EVS console.
- In the disk list, locate the target disk and choose in the Operation column.
- (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.
- On the displayed page, confirm the information and click Yes.
- Check that the disk disappears from the disk list.
- Sign in to the EVS console.
- In the disk list, locate the target disk and choose
in the Operation column.
If the button is grayed out, detach the disk and then unsubscribe from it.

- 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.
- To unsubscribe from non-shared data disks separately, perform the following steps:
- Sign in to the ECS console.
- In the displayed dialog box, select Delete Disk.
- Select the disks you want to delete and click Next.
- On the deletion page, confirm the information, select "I understand a handling fee will be charged for this unsubscription", and click Submit.
Related Links
For more deletion FAQs, see Deletion.
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