Replicating Images

Scenarios

You can enable some advanced features (such as fast ECS creation from an image) using the image replication function. You may need to replicate an image to:

• Optimize a system disk image so that it can be used to quickly create ECSs.

  Fast Create greatly reduces the time required for creating ECSs from a system disk image. Currently, this feature is supported by all newly created system disk images by default. Existing system disk images may not support this function. You can optimize the images using the image replication function. For example, if image A does not support fast ECS creation, you can replicate it to generate image copy_A that supports fast ECS creation.

Constraints

• Full-ECS images cannot be replicated.
• Private images created using ISO files do not support in-region replication.

Prerequisites

The images to be replicated are in the Normal state.

Procedure

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

      The IMS console is displayed.

2. Locate the row that contains the image to be replicated, click More in the Operation column, and select Replicate.
3. In the displayed Replicate Image dialog box, set the following parameters:
   • Name: Enter a name that is easy to identify.
   • Description: This parameter is optional. Enter description of the replication.
4. Click OK.

   On the Private Images page, view the replication progress. If the status of the new image becomes Normal, the image replication is successful.