This topic describes how to create a Pay-As-You-Go cloud disk that contains no data by using the ECS console. Adding a Pay-As-You-Go cloud disk can increase the storage space of an instance.

Limits

Before you create a Pay-As-You-Go cloud disk, note the following:

  • You cannot create a separate system disk in the ECS console.
  • Across all regions, the number of Pay-As-You-Go data disks that you can create cannot be more than five times the number of Pay-As-You-Go instances under your account. For more information, see Limits.
  • You cannot merge multiple cloud disks by formatting them because they are independent of each other. Therefore, we recommend that you estimate the number and size of cloud disks required before you create them.
  • We recommend that you do not use Logical Volume Manager (LVM) to create logical volumes for multiple cloud disks. This is because a snapshot can only back up data of a single cloud disk. If you use LVM, data discrepancies will occur when you roll back these cloud disks.

Billing

The cloud disk created in this topic is billed as Pay-As-You-Go. For more information, see Pay-As-You-Go.

If you need to convert the billing method of a Pay-As-You-Go cloud disk to Subscription, see Convert the billing methods of cloud disks.

Note If you need to create a Subscription cloud disk, use either of the following methods:

You cannot unmount or release a Subscription cloud disk on demand. The Subscription cloud disk is released along with the corresponding instance.

Procedure

  1. Log on to the ECS console.
  2. In the left-side navigation pane, choose Storage & Snapshots > Disks.
  3. In the upper-right corner of the Disks page, click Create Disk.
  4. Select the region and zone that are the same as the target instance.
  5. Specify the disk type, capacity, disk encryption mode, and quantity.

    Note
  6. Select the ECS Service Level Agreement check box.
  7. Confirm the cloud disk configuration and fee.
  8. Click Preview Order.
  9. In the displayed dialog box, click Create.
  10. After the cloud disk is created, return to the Disks page and refresh the disk list.

    The Status of the cloud disk is displayed as Unattached.

What to do next

Attach a cloud disk.

Related APIs

References