Operation Scenarios

A full image of an ECS includes system disks and data disks. A full image created using an ECS mounted with data disks contains an operating system, application software and service data, which can be used to quickly distribute identical ECSs and migrate data.

Constraints and Restrictions

A full image can only be created using an ECS rather than an image file.
An ECS that only contains system disks can also be used to create a full image that only has system disks and no data disks.
To create a full image, an ECS backup repository must exist for storage and backup. The size of the generated full backup cannot exceed the remaining repository space. Otherwise, it will fail to be created.
For the backup of a full image, the Restore Data, Delete and Apply for ECS buttons in the action bar are dimmed and cannot be selected.
When a full image is deleted, the corresponding full backup is deleted simultaneously.
When an ECS is purchased based on a full image, the system and data disks have the same type as that of the system and data disks of the full image in the disk options, which cannot be changed. The data disk size cannot be changed. The size of the system disk must be greater than or equal to that of the system disk of the full image. If a full image has multiple data disks, these disks will be displayed on the subscription page, and cannot be deleted. The billing is the same as that for the data disks that are mounted properly.
A full image does not support sharing, unsharing, import and export functions.
When a full image is used to reinstall the operating system, only the system disk data of the full image can be restored. To restore or migrate the data disk data in a full image, you must create a new ECS using the full image.

Operation Steps

Log in to the management Console and select IMSto enter the IMS page.
On the Image list page, click Create Private Image.
Go to the page for creating a private image, and select a full image as the image type and ECS as the image source, as shown in the following figure
Select the corresponding ECS and fill in the remaining information. Repository is mandatory. If no repository is available, click Create Repository to create an ECS backup repository.
Click Nextand Create Now. A full image is created.

Subsequent Operation

After a full image is created, you can see it in the private image list. The disk capacity of a full image is displayed as -, as shown in the following figure:
The operations supported by a full image include: View details, apply for an ECS, modify, delete and reinstall.
In the ECS backup repository, you can see the backup automatically generated by the full image. It has the same name as the full image, as shown below.
See the section of Constraints and Restrictions for the usage restrictions of a full backup.

Image Management Service