Updated on 2022-11-15 GMT+08:00

Resilience

CTS provides a three-level reliability architecture and uses intra-AZ instance disaster recovery (DR), dual-AZ DR, and multiple log data copies to ensure service durability and reliability.

Table 1 CTS reliability architecture

Reliability Solution

Description

Intra-AZ instance DR

In a single AZ, CTS implements instance DR in multi-instance mode and quickly rectifies faults to continuously provide services.

Multi-AZ DR

CTS supports cross-AZ DR. An AZ fault does not interrupt continuous services.

Data DR

Multiple copies of log data are used to implement data DR.