Understand ECS Billing on Dedicated Hosts & Cost Allocation - Dedicated Host - Alibaba Cloud - Dedicated Host

This topic describes the billable items for Elastic Compute Service (ECS) resources that are used on a Dedicated Host (DDH).

Billable items

You are not charged for the compute resources (vCPUs and memory) of ECS instances that run on a DDH, regardless of the instance billing method. However, you are charged for other resources, such as images, cloud disks, public bandwidth, and snapshots. The following table describes the billing details. In the table, ^① indicates a cost-effective billing combination.

Note You can create pay-as-you-go ECS instances on your DDH and select a cost-effective billing combination (indicated by ^① in the table) to balance flexibility and cost-effectiveness.

Resource type	Billing details	Billing methods	Switching billing methods	References
Image	Charges are determined by the image type and usage.	Subscription Pay-as-you-go Pay-as-you-go + reserved instance (for public images)^① Important Images can be used only with ECS instances. When you purchase a reserved instance for a Windows instance, the cost of the public image is included. This can be used to offset the bill for the public image.	Not supported	Image billing What is a reserved instance?
Cloud disk	You are charged based on the disk size and storage duration.	Subscription Pay-as-you-go Pay-as-you-go + savings plan^①	Switch the billing method of a disk Switch from subscription to pay-as-you-go Switch from pay-as-you-go to subscription	Elastic Block Storage billing What is a savings plan?
Snapshot	You are charged based on the snapshot size and storage duration.	Pay-as-you-go Pay-as-you-go + SCU^①	Not supported	Snapshot billing Storage Capacity Units (SCUs)
Public bandwidth	When you use a static public IP address to access the internet, you are charged only for outbound public bandwidth.	Pay-by-bandwidth Pay-by-traffic Pay-by-bandwidth + savings plan^① Pay-by-traffic + Data Transfer Plan^①	Switch the bandwidth billing method for a static public IP address	Public bandwidth billing Data Transfer Plan What is a savings plan?

Billing for other ECS resources

The following table describes how associated resources are billed for ECS instances in different states on a subscription DDH that has not expired.

Important When you create a subscription ECS instance, its subscription period cannot end later than the subscription period of the DDH.

ECS instance billing method	ECS instance state	Billing for other ECS resources
Subscription	Running	Other ECS resources, such as paid images, cloud disks, public bandwidth, and snapshots, are billed as normal.
Subscription	Stopped	Other ECS resources, such as paid images, cloud disks, public bandwidth, and snapshots, are billed as normal.
Pay-as-you-go	Running	Other ECS resources, such as paid images, cloud disks, public bandwidth, and snapshots, are billed as normal.
Pay-as-you-go	Stopped	If economical mode is disabled for the pay-as-you-go instance: Other ECS resources, such as paid images, cloud disks, public bandwidth, and snapshots, are billed as normal. If economical mode is enabled for the pay-as-you-go instance: Image: The image is retained. If it is a paid image, billing continues. Cloud disk: The disk is retained and billing continues. Public bandwidth: If the ECS instance is assigned a public IP address, the IP address is released and you are no longer charged for public bandwidth. If the ECS instance is associated with an Elastic IP (EIP) address and the EIP address is not disassociated before the instance is stopped, the EIP address is retained and billing continues. Note The private IP address of the ECS instance is retained after the instance is stopped. Snapshot: The snapshot is retained and billing continues.