Operation Scenarios

Different from system disk images, data disk images contain only service data and are created using ECS data disks. You can save the service data on the ECS data disks by creating data disk images. You can create an EVS using a data disk image, and then mount the EVS to an ECS for service data migration.

Constraints and Restrictions

The ECS for creating a data disk image must have a data disk. If it has only system disks, this operation is not allowed.
When creating a data disk image, you can select only one data disk on the ECS.
Data disk images cannot be used to apply for ECSs like system disk images. They can only be used to apply for data disks.

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 the data disk image as the image type and ECS as the image source, as shown in the following figure.
Select the corresponding ECS and a data disk.
Fill in the remaining information and click Next and Create Now. The data disk image is created.

Subsequent Operation

After a data disk image is created, you can view it in the private image list.
The operations supported by a data disk image include: View details, apply for a data disk, modify, delete, export, share and unshare.
Use a data disk image to apply for a data disk. Click Apply for Data Diskin the action bar to enter the data disk application interface, as shown in the figure. The operation interface is the same as that for the EVS purchased using a conventional method. Note: When applying for a data disk using a data disk image, you cannot create a data disk using a snapshot.

Image Management Service

Creating a Data Disk Image Using an ECS