What Are the Billing Standards of IMS?

Image Type	Billing
Public	Only KylinOS, UnionTechOS, and Windows Server public images are billed. Other public images are free.
Private	When you create a private image, you will be billed for the storage on CSBS or CBR. System disk image or data disk image: OBS buckets are used in the background for free image storage. Full-ECS image: If the image is created from a CSBS or CBR backup, you will be billed for the space used to store the CSBS or CBR backup.
Shared	If it is a system or data disk image, the OBS storage is free. If it is a full-ECS image, you will be billed for the space used to store the CBR backup. NOTE: Full-ECS images created from a CBR backup can be shared but those created from a CSBS backup cannot.

Image Type

Billing

Public

Only KylinOS, UnionTechOS, and Windows Server public images are billed. Other public images are free.

Private

When you create a private image, you will be billed for the storage on CSBS or CBR.

System disk image or data disk image: OBS buckets are used in the background for free image storage.
Full-ECS image: If the image is created from a CSBS or CBR backup, you will be billed for the space used to store the CSBS or CBR backup.

Shared

If it is a system or data disk image, the OBS storage is free.
If it is a full-ECS image, you will be billed for the space used to store the CBR backup.

NOTE:

Full-ECS images created from a CBR backup can be shared but those created from a CSBS backup cannot.

Operation	Billing Item
Uploading an external image file to an OBS bucket	OBS storage (You are advised to delete unneeded image files.)
Creating an ECS from a system disk image or full-ECS image	EVS disks attached to the created ECS (The system disk image and full-ECS image are free of charge.) For example, when you use a full-ECS image (with a 40 GB system disk and 100 GB data disk) to create an ECS, you will be charged based on the total capacity of the system disk and data disk. Assume that the disk billing standard is $0.00049 per GB-hour. The hourly billing for your EVS disks is $0.0686.
In-region replication of a system or data disk image	None. OBS buckets are available for free to store the image copies.
Exporting images	OBS space for storing the exported images