Creating a System Disk Image from an ECS

Constraints

The system disk capacity of the ECS used to create this system disk image must be no greater than 1 TB.

Prerequisites

The ECS from which this system disk image is created must meet the following requirements:

• Sensitive data has been deleted from the ECS to prevent data leaks.
• The ECS is running or stopped.

Procedure

1. Access the IMS console.
   1. Log in to the management console.
   2. Under Compute, click Image Management Service.

      The IMS console is displayed.

2. Register an external image file as a private image.
   1. Click Create Image in the upper right corner.
   2. Set image parameters.

      Table 1 and Table 2 list the parameters in the Image Type and Source and Image Information areas, respectively.

      Table 1 Image type and source

      Parameter	Description
      Type	Select Create Image.
      Region	Select a region close to your business.
      Type	Select System disk image.
      Source	Select ECS and select the ECS created in Creating and Configuring an ECS from the list.

      Table 2 Parameter description

      Parameter	Description
      Encryption	Specifies whether the image will be encrypted. The value is provided by the system and cannot be changed.
      Name	Set a name for the image.
      Enterprise Project	Select an enterprise project from the drop-down list. This parameter is available only if you have enabled enterprise projects or your account is an enterprise account. To enable this function, contact your customer manager. An enterprise project can be used to centrally manage cloud resources and members by project.
      Tag	(Optional) Set a tag key and a tag value for the image to make identification and management of your images easier. You are advised to create predefined tags in TMS. For details, see Creating Predefined Tags. NOTE: If your organization has configured tag policies for images, you need to add tags to your images based on the policies. If you add a tag that does not comply with the tag policies, images may fail to be created. Contact the organization administrator to learn more about the tag policies. Each tag consists of a key and a value. A key contains a maximum of 36 characters, and a value contains a maximum of 43 characters. The key cannot be left blank or an empty character string. The value cannot be left blank but can be an empty character string. An image can have a maximum of 10 tags.
      Description	(Optional) Describe the image.

   3. Read and select the check box, and click Next.
   4. Confirm the parameter settings and click Submit.
   5. Confirm the parameters and click Submit Application.

3. Go back to the Private Images page and view the new system disk image.

   The time required for creating an image depends on the system disk size, network status, and number of concurrent tasks. When the image status changes to Normal, the image is created successfully.

   

   • Do not perform any operations on the selected resources or its associated resources during image creation.
   • An ECS created from an encrypted image is also encrypted. The key used for encrypting the ECS is the same as that used for encrypting the image.
   • An image created from an encrypted ECS is also encrypted. The key used for encrypting the image is the same as that used for encrypting the ECS.