Availability Group (AG) is a business availability deployment solution provided by JD Cloud, which is a logical collection of computing resources. It provides a mechanism for balanced deployment of VMs across multiple fault domains (FDs) in a data center. The instances are dispersed in isolated physical hosts. In case of hardware failure , it will only affect some instances, and your business is still available. Fault isolation between fault domains avoids the overall impact of partial failures on availability applications.
Free Use, the relevant fees are collected according to the resources in the group. It will support container type Availability Group soon.
See Core-Concepts for concepts that are often involved in understanding the JD Cloud Availability Group.