Deleting a Disk

Prerequisites

A disk can be deleted only when it is in the Available, Expansion failed, Rollback failed, or Error and the snapshots of the disk does not have linked clone volumes.

Context

• Common disks support direct deletion while HyperMetro disks do not.
• Preferred disks must be degraded to common disks before being deleted. Non-preferred disks will be automatically deleted once their corresponding preferred disks are degraded.
• Non-preferred disks do not support manual deletion.

Precautions

After a disk is deleted, data on the disk will be cleared. Ensure that the to-be-deleted disk is no longer needed.

Procedure

1. Log in to the management console. For details, see Logging In to the Management Console.

2. Click and select the wanted region.
3. Use any of the following methods to display the disk list:
   • Method 1: Via the disk-residing DESS device
     1. Click and choose Dedicated Cloud > Dedicated Enterprise Storage to go to the DeC management console.
     2. In the row of the desired DESS device, click the number in the Number of Disks column to go to the Disks tab page.

        The disk tab page lists the disks of the DESS device.

   • Method 2: Via the disk-residing HyperMetro resource
     1. Click and choose Dedicated Cloud > Dedicated Enterprise Storage to go to the DeC management console.
     2. On the navigation pane on the left, choose Dedicated Enterprise Storage > HyperMetro to go to the HyperMetro resource list page.

        By default, HyperMetro resources in all statuses are listed.

     3. Use any of the following methods to display the disk list:
        • Method 1
          1. Click next to the resource name to view the HyperMetro resource details.
          2. In the row of the desired DESS device, click the number in the Number of Disks column to go to the Disks tab page.

             The disk tab page lists the disks of the HyperMetro resource.

        • Method 2
          1. In the row of the wanted HyperMetro resource, click the DESS device name in the Associated DESS Devices column to go to the device details page.
          2. In the row of the desired DESS device, click the number in the Number of Disks column to go to the Disks tab page.

             The disk tab page lists the disks of the DESS device.

   • Method 3: Via the disk list of the DESS device
     1. Click and choose Storage > Dedicated Enterprise Storage Service to go to DESS Console.
     2. On the navigation pane on the left, choose Disks. The disk list page is displayed.

4. Set the search criteria to look for the desired disk.

5. Check the disk type:
   • If it is a non-preferred disk, perform 6 and no further operation is required.
   • If it is a preferred disk, perform 6, 7, and 8.
   • If it is a common disk, perform 7 and 8.

6. In the row of the disk, choose More > Degrade to Common Disk.
   

   • After a preferred disk is degraded to a common disk, its corresponding non-preferred disk will be deleted automatically.
   • Deleting a disk will clear data on the disk. Exercise caution when performing this operation.

7. In the row of the disk you want to delete, choose More > Delete.

   The Delete Disk dialog box is displayed.

   

   

   Deleting a disk will clear data on the disk. Exercise caution when performing this operation.

8. Understand the risks and click OK.

   A message is displayed indicating that the disk has been deleted successfully.