Help Center/ Workspace/ User Guide (Administrators)/ Desktop Pools/ Disks/ Adding Disks
Updated on 2026-05-25 GMT+08:00
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Adding Disks

Scenarios

If the disks of a desktop pool or desktops in the desktop pool cannot meet service requirements, you can add disks. This section describes how to add data disks to desktop pools and desktops in the pools.

Notes and Constraints

  • You can add data disks only to a running desktop pool.
  • If the number of data disks on desktops differ from the desktop pool's settings, you are advised to align them to ensure a consistent user experience. You can filter desktops with inconsistent disk quantities and add disks in batches.

Procedure

You can add disks in the following three scenarios. Select a scenario as required.

Adding Disks To a Desktop Pool

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

    The Desktop Pools page is displayed.

  3. You can access the page for adding data disks to a desktop pool in either of the following ways:

    • Method 1:
      1. Locate the desktop pool whose disks are to be added, and choose More > Disk Management > Add Disk in the Operation column. The page for adding disks is displayed.
    • Method 2:
      1. On the desktop pool page, click the name of the desktop pool whose disks are to be added. The basic information page of the desktop pool is displayed.
      2. Click Add on the right of the Disk Information column in the desktop pool information. The page for adding disks is displayed.

  4. Select the applicable scope.

    • Only added desktops: The change is only applied to new desktops that are automatically or manually added to the desktop pool.
    • Added and idle desktops: The change is applied to new desktops that are automatically or manually added to the desktop pool and idle desktops (those not assigned to users) in the desktop pool.
    • Added and existing desktops: The change is applied to new desktops that are automatically or manually added to the desktop pool and all desktops in the desktop pool.

  5. Select and configure data disks.

    • 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.

    • After the disk partition is formatted, stop or restart the desktop, or expand the disk capacity.
    • The desktop will be restarted during disk addition.
    • Only one data disk can be added to a desktop pool at a time.
    • The data disk size is 10 to 8200 GB (the value must be an integer multiple of 10).
    • The maximum number of data disks to add is 10 minus the number of existing data disks.

  6. (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.

  7. Confirm the operation, and enter YES or click Auto Enter.
  8. Click Next.
  9. Confirm the information about the new disk and click OK.

Adding Disks to Desktops in a Static Pool

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

    The Desktop Pools page is displayed.

  1. Click the desktop pool name. The basic information page of the desktop pool is displayed.
  1. Locate the desktop and choose More > Disks and Snapshots > Add Disk in the Operation column. The Add Disk page is displayed.
  2. 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.

    • The maximum number of data disks to add is 10 minus the number of existing data disks.
    • After the desktop is created, you will be billed for the disk until the desktop is deleted.
    • After the disk partition is formatted, stop or restart the desktop, or expand the disk capacity.
    • The desktop will be restarted during disk addition.
    • The data disk size is 10 to 8200 GB (the value must be an integer multiple of 10).

  3. (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.

  4. Select I understand the impact of this operation and will proceed.
  5. Click Next.
  6. Confirm the information about the new disk and click OK.

Adding Disks to Desktops in a Dynamic Pool

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

    The Desktop Pools page is displayed.

  1. Click the desktop pool name. The basic information page of the desktop pool is displayed.
  2. Click Data Disk Counts Varied to filter out desktops that have different numbers of data disks.

    • Adding a single disk: Locate the desktop and choose More > Disk Management > Add Disk in the Operation column. The Add Disk page is displayed.
    • Adding disks in batches: Click More > Disks Management > Add Disk above the list. The Add Disk page is displayed.

  1. Confirm the details of the desktops to which disks are to be added.
  2. Confirm the operation, and enter YES or click Auto Enter.
  3. Click Next and click OK.
Parent Topic: Disks