ECS instances running on a DDH and a shared hosting server have differences.

The differences between ECS instances running on a DDH and a shared hosting server are listed in the following table.

Item ECS on shared cloud hosting ECS on Dedicated Hosts
Network Type VPC and classic network. For more information, see network types. VPC
Chargeable resources See pricing overview. For more information, see billing of ECS resources on a DDH.
Billing methods

Subscription, Pay-As-You-Go, and Spot instances

Subscription

Renewal period Set the renewal period according to your business needs. After renewal, the ECS instance must expire earlier than the DDH. For more information, see limits.
No fees for stopped instances (VPC-Connected) For more information, see no fees for stopped VPC instances. In the Stop Instance, No Fees mode, the computing resources, including vCPU and memory, are retained, but other ECS resources keep being charged. For more information, see billing of ECS resources on a DDH
Pay-As-You-Go to Subscription

For more information, see switch from Pay-As-You-Go to Subscription billing, the function limit conditions must be met

Besides all the limitations of the feature, only ECS instances running on a Subscription DDH supports this feature, and after conversion, the expiration time of an ECS instance cannot be later than that of a DDH.
ECS instance type For more information, see what is ECS. Determined by the Dedicated Host types. For more information, see dedicated host types
Create an ECS instance For more information, see create an instance. For more information, see create an ECS instance on a DDH.
Change instance configurations For more information, see upgrade or downgrade instance configurations Not supported.
Adjust the Internet bandwidth For more information, see adjust Internet bandwidth. For more information, see adjust Internet bandwidth.
Note You cannot change the configurations of a Subscription instance while adjusting the Internet bandwidth.
Assign a public IP address For more information, see assign a public IP address. For more information, see assign a public IP address.
Note You cannot change the configurations of a Subscription instance while adjusting the Internet bandwidth.
Release an ECS instance
  • Pay-As-You-Go instances can be released automatically or manually. For more information, see release an instance.
  • When a Subscription ECS instance expires or a Pay-As-You-Go ECS instance is out of service because of payment overdue, it is released automatically.
When a Subscription DDH expires and is not renewed, the ECS instances hosted on it are released automatically.