Adding a Disk to an ECS

Scenarios

If the storage space on your ECS is insufficient, you can purchase EVS disks to add more storage space.

The disks attached to an ECS include one system disk and one or more data disks. The system disk is automatically created and attached when the ECS is created. You do not need to purchase it again. The data disks can be added in either of the following ways:

• During the ECS purchase. Data disks added in this way are automatically attached to the ECS.
• After the ECS is purchased.
  • Data disks purchased on the EVS console must be manually attached to the ECS. For details, see Purchasing an EVS Disk.
  • Data disks purchased on the ECS console are automatically attached to the ECS.

This section describes how to add data disks on the ECS console after an ECS is created.

Constraints

• A maximum of 60 disks can be attached to an ECS.

  The number of disks that can be attached to an ECS varies depending on the ECS flavor and disk type. For details, see Can I Attach Multiple Disks to an ECS?

• The new disks can be attached to an ECS only as data disks.
• The new data disks must be in the same region and AZ as the ECS.
• The new data disks must use the same billing mode as the ECS.
• For details about the new disk types and their performance, see Disk Types and Performance.

Billing

You will be billed for the EVS disks right after you have purchased them. EVS disks are billed based on the disk type, capacity, and usage duration. For details, see Billing for EVS Disks.

Procedure

1. Log in to the management console.
2. Click in the upper left corner and select a region and project.
3. Click . Under Compute, click Elastic Cloud Server.
4. Locate the row containing the target ECS and do as follows:
   • For a pay-per-use ECS:

     Choose More > Manage Disk/Backup > Add Disk in the Operation column.

   • For a yearly/monthly ECS:
     1. Choose More > Change in the Operation column.
     2. In the displayed Select Change Type dialog box, select Add Disk and click Next.
        Figure 1 Adding a disk to an ECS
        

   The page for buying disks is displayed.

5. Set parameters for the new EVS disk as prompted.

   For instructions about how to set EVS disk parameters, see Purchasing an EVS Disk.

   

   • By default, the billing mode of the new disk is the same as that of the ECS.
   • By default, the new disk is in the same region as the ECS.
   • By default, the new disk is in the same AZ as the ECS, and the AZ of the disk cannot be changed.
   • After the new disk is purchased, it is attached to the ECS by default.
   • The expiration time of a new disk billed on a yearly/monthly basis is the same as that of the ECS.
6. Click Next to confirm the order and click Submit to complete the payment.

   The system automatically switches back to the Disks tab on the ECS management console. Then, you can view the information of the new disk.

Follow-up Procedure

The system automatically attaches the new disk to the ECS, but the disk can be used only after it is initialized. To do so, log in to the ECS and initialize the disk.

For details about how to initialize a data disk, see Initializing EVS Data Disks.

Helpful Links

• Viewing EVS Disk Details
• How Can I View the Available Capacity of My Disk?