SMC is a free service, but ECS resources used during migration incur charges.
The following table lists the billable items and billing methods for server migration.
|
Billable item |
Description |
Billing method |
References |
|
ECS instance (intermediate instance) |
The system automatically creates an intermediate instance during migration and releases it after migration completes. Important
If a migration task is incomplete (failed or paused) and has not expired, the intermediate instance is retained and incurs fees. Delete the task to release the instance and stop charges. |
Pay-as-you-go Note
Ensure your account balance is at least CNY 100 to avoid intermediate instance creation failures. |
|
|
Disk |
The system attaches an intermediate disk to the intermediate instance during migration. The disk is released with the instance after migration completes. Note
Releasing the intermediate disk does not affect the source system. |
Pay-as-you-go |
|
|
Snapshot |
The system creates an intermediate snapshot from the intermediate instance to generate an image during migration. |
Pay-as-you-go Note
Snapshot fees are based on size and storage duration. The default billing method is pay-as-you-go. |
|
|
Public bandwidth |
If you use the public network for migration, data transfers from the source server to the intermediate or destination ECS instance. Migration traffic is primarily inbound and free of charge. |
Free of charge |
None |
|
Custom image |
A custom image is created from a snapshot during migration. |
Free of charge |
None |