The Service-Level Agreement (SLA) for ApsaraDB RDS instances that run High-availability Edition and Cluster Edition with multi-zone deployment is increased to 99.995% or 99.997% based on the number of zones in which the instances are deployed.
Effective date
June 19, 2025
Details
The SLA for RDS instances that run High-availability Edition and Cluster Edition and are deployed across multiple zones is increased based on the number of zones in which the instances are deployed.
Instances deployed across two zones: The SLA is increased to 99.995%.
Instances deployed across three or more zones: The SLA is increased to 99.997%.
The following table shows the SLAs for different RDS instances before and after the improvement.
RDS instance | Deployed zones | Edition | SLA before improvement | SLA after improvement |
RDS for MySQL | Two zones | High-availability Edition and Cluster Edition | Dedicated instance types: 99.99% General-purpose instance types: 99.95% | 99.995% |
Three or more zones | Cluster Edition | 99.99% | 99.997% | |
RDS for PostgreSQL | Two zones | High-availability Edition and Cluster Edition | Dedicated instance types: 99.99% General-purpose instance types: 99.95% | 99.995% |
Three or more zones | Cluster Edition | None | 99.997% | |
RDS for SQL Server | Two zones | High-availability Edition and Cluster Edition | Dedicated instance types: 99.99% General-purpose instance types: 99.95% | 99.995% |
RDS for MariaDB | Two zones | High-availability Edition | Dedicated instance types: 99.99% General-purpose instance types: 99.95% | 99.995% |
The SLA of the following RDS instances remains unchanged:
Instances deployed in a single zone (regardless of whether the instances run Basic Edition, High-availability Edition, or Cluster Edition)
Instances that run RDS Enterprise Edition