Adding a Disk

Scenarios

If the data disk capacity of a purchased desktop does not meet requirements, you can add data disks to the desktop.

During disk addition, the system will restart your desktop.

Prerequisites

You can add data disks only to a running desktop.

Procedure

1. Log in to the console.
2. In the navigation pane, choose Desktops > Desktops.

   The Desktops page is displayed.

3. Select the desktop to which a data disk is to be added and choose More > Disks and Snapshots > Add Disk.

   The page for adding a disk is displayed.

4. Click Add a data disk and configure the data disk.
   • High I/O disks use serial attached SCSI (SAS) drives to store data. They are suitable for common workloads.
   • Ultra-high I/O disks use solid state disk (SSD) drives to store data. They are suitable for mission-critical enterprise services as well as high-throughput workloads demanding low latency.
   • General purpose SSD disks use SSD drives to store data. They are suitable for enterprise office applications requiring high throughput and low latency.
   • General purpose SSD V2 is a next-generation General Purpose SSD disk type. You can buy General Purpose SSD V2 disks of a given capacity with the IOPS and throughput tailored to your workloads. The disk capacity and performance are decoupled.

     If you select General Purpose SSD V2 as the data disk type, you can configure the disk size and performance as required.

     IOPS: The number of read and write operations performed by an EVS disk per second (value range: 3,000 to 128,000; maximum value: 500 IOPS/GiB).

     Throughput: The amount of data read from and written into an EVS disk per second (value range: 125 to 1,000 MiB/s).

     When the IOPS is less than or equal to 3,000 and the throughput is less than or equal to 125, no bill is generated. IOPS and throughput are billed based on the preconfigured values during purchase. The actual fee is displayed on the GUI.

     If you do not have a clear throughput:IOPS ratio in mind, you are advised to use the ratio of 2:100 (with a throughput unit of 1 MiB/s and an IOPS unit of 100). For example, if your planned throughput is 200 MiB/s, configure 10,000 for the IOPS.

     If the IOPS or throughput of the disk is insufficient in subsequent use, you can change the disk performance by referring to Changing Desktop Disk Performance.

   

   • The data disk size is 10 to 8200 GB (the value must be an integer multiple of 10).
   • Disks cannot be added to hourly-billed Flexus desktops.
   • The maximum number of data disks to add is 10 minus the number of existing data disks.

5. (Optional) Encrypt the disk.

   Select Encryption to go to the encryption page.

   1. Select Select existing key.
      1. Select the required key from the Key Name drop-down list.
      2. Click OK.
   2. Select Enter key ID.
      1. Enter a key ID in the text box.

         You can view the key ID in the key list.

      2. Click OK.

   A KMS key can be custom, default, or shared.

   • Shared keys: You can use DEW to create grants that allow other accounts to share your keys. For details, see Creating a Grant.
   • Custom keys: You can select an existing key or create a key. For details about how to create a custom key, see Creating a Custom Key.
   • Key sharing via resources: You can use Resource Access Manager (RAM) to share your keys with other accounts via resource sharing. For details, see Sharing Your Resources.
     

     For yearly/monthly cloud desktops, you cannot use RAM to share keys across projects under the same account.

6. Select I understand the impact of this operation and will perform it and click Next.
7. Confirm the information about the added disk and click OK.