Creating an Image from a Cloud Server Backup

Prerequisites

• The ECS has been optimized before being backed up, and the Cloud-Init (for Linux) or Cloudbase-Init (for Windows) tool has been installed.

Notes

• Images created using a backup are the same, so CBR allows you to use a backup to create only one full-ECS image that contains the whole data of the system disk and data disks of the ECS, in order to save the image quota. After an image is created, you can use the image to provision multiple ECSs in a batch.
• A backup with an image created cannot be deleted directly. To delete such a backup, delete its image first. If a backup is automatically generated based on a backup policy and the backup has been used to create an image, the backup will not be counted as a retained backup and will not be deleted automatically.
• A backup is compressed when it is used to create an image, so the size of the generated image may be smaller than the backup size.

Constraints

• In CloudPond scenarios, cloud servers cannot be created using the images created from cloud server backups.
• You can create an image using a backup only when the backup is in the Available state or the backup is in the Creating state and "Image can be created" is displayed under Creating.
  

  • Once backup creation starts, the backup enters the Creating state. After a period of time, a message stating "Image can be created" is displayed under Creating. In this case, the backup can be used for creating an image, even though it is still being created and cannot be used for restoration.
• The backup must contain the system disk data.
• Only ECS backups can be used to create images.

Procedure

1. Log in to the CBR console.
   1. Log in to the CBR console.
   2. In the upper left corner, click and select a region.
   3. Click and choose Storage > Cloud Backup and Recovery.

2. Click the Backups tab. Locate the desired backup. For details, see Viewing a Backup.
3. In the row of the backup, choose More > Create Image.

4. Create an image by referring to Creating a Full-ECS Image from a CBR Backup in the Image Management Service User Guide.
5. Use the image to provision ECSs when needed. For details, see Creating an ECS from an Image in the Image Management Service User Guide.

Helpful Links

• A server is created using the image of a cloud server backup. However, upon login to the server, the server enters maintenance mode and cannot be used. For details, see A Server Created Using an Image Enters Maintenance Mode After Login.
• What Can I Do if the Password Becomes a Random One After I Use a Backup to Restore a Server or Use an Image to Create a Server?