Note that AWS has an option to deploy the database to multiple availability zones.

请注意，AWS有一个向多个可用性区域部署数据库的选项。

youdao

Built a reliable website on AWS using multiple availability zones, DB failover, and load balancers.

基于AWS使用多可用性区域、DB错误恢复与负载均衡器搭建了一个网站。

youdao

We will be adjusting our roadmap to give VPC customers access to multiple Availability Zones as soon as possible.

FORBES: Amazon Explains Cloud Outage, Issues Apology

This will allow VPC customers to build highly-available applications using multiple Availability Zones just as EC2 customers not using a VPC do today.

FORBES: Amazon Explains Cloud Outage, Issues Apology

For example, the critical cloud-based services of many companies (including our own) had no downtime during the incident in June, mainly because of the use of multiple, redundant availability zones.

FORBES: When You Move To The Cloud, Plan For The Storms