This topic describes how to copy a custom image in your Alibaba Cloud account to other regions. This action enables you to create identical ECS instances across regions and back up data of instances.
Background information
The following table lists various scenarios in which custom images are copied.
Business requirement | Procedure | Reference |
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Copy images across regions in the same account |
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Copy images across regions in different accounts |
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Share images in the same region across accounts | You can share images without the need to copy images. For more information, see Share or unshare custom images | ModifyImageSharePermission |
Change the encryption status of a custom image, encrypt a system disk, or encrypt operation system data | Select Encrypt when you copy a custom image. The encryption option in public preview. | CopyImage |
Before you copy a custom image, take note of the following items:
- The following fees may be incurred:
- The copied snapshot consumes snapshot capacity. For more information, see Billing overview.
Note When an image is copied, a corresponding snapshot is generated in the destination region. The custom image is generated in the destination region based on this snapshot. The generated snapshots are retained permanently, regardless of the retention period of the snapshots contained in the source image.
- Fees for traffic between the two regions. Currently, no fees are charged for this traffic. For the latest billing details, see the announcements on official Alibaba Cloud website.
- The copied snapshot consumes snapshot capacity. For more information, see Billing overview.
- The time it takes to copy a custom image depends on the image size, network transmission
speed, and the number of concurrent tasks in the queue.
Note To copy a large image such as an image larger than 2 TiB in size across regions, you can first copy the associated snapshots to the destination region and then create a custom image from these snapshots in the destination region. For more information, see Copy a snapshot and Create a custom image from a snapshot.
- The role authorization information, service authorization information, and instance user data of the source image are not copied to the destination image.