Operation Scenarios

To save the state of an ECS at a certain time, you can create an ECS snapshot. This snapshot saves the state of the ECS at a specific time point, and you can restore the ECS to its previous state using the snapshot recovery function. You can use a snapshot to create an image with the ECS data in a previous state instead of the current data.

Constraints and Restrictions

You can only select a system disk rather than a data disk for the snapshot.
Only a snapshot in the Normal state can be selected.

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 system disk image as the image type and the ECS snapshot as the image source.
Fill in the remaining information and click Next and Create Now. The image is created.

Subsequent Operation

After the image is created, you can see it in the private image list. It is a system disk image. The disk capacity is the capacity of the ECS system disk when the snapshot was created.
The operations supported by an image created using a snapshot include: View details, apply for an ECS, modify, delete, export, share, unshare, and reinstall.
After a snapshot image is created, the image is independent from the snapshot. The snapshot can be modified or deleted without affecting the normal use of the image.

Image Management Service

Creating a System Disk Image Using an ECS Snapshot