---
格式版本: 2
标题: "ARC Region switch adds Amazon RDS Switchover Read Replica execution block"
原文链接: "https://aws.amazon.com/cn/about-aws/whats-new/2026/08/region-switch-rds-switchover-execution-block/"
发布日期: "2026-08-20"
发布时间校准状态: "found"
发布时间需复核: "否"
发布时间来源: "llm:local:original_script_field"
发布时间证据: "postDateTime: 2026-08-20T17:45:00Z"
发布时间校准原因: "候选日期来自脚本字段中的发布时间postDateTime，与URL中的/2026/08/一致，且无冲突证据，可确认为文章发布时间。"
发布时间校准置信度: "1"
发布时间候选数量: 1
发布时间严格候选数量: 0
发布时间原页读取状态: "source template page reused from URL open"
发布时间未找到原因: ""
发布时间校准时间: "2026-08-21T09:55:27+08:00"
发布时间仲裁状态: "confirmed"
发布时间仲裁尝试次数: 1
发布时间仲裁耗时毫秒: 6886
发现时间: "2026-08-21T09:50:45+08:00"
入库时间: "2026-08-21T01:55:36.008Z"
来源平台: "固定入口"
搜索渠道: "fixed_url"
搜索词: "https://aws.amazon.com/new"
匹配关键词:
  []
相关厂家:
  - "AWS"
  - "Oracle"
相关专家:
  []
内容类型: "网页"
抓取工具: "Free Fetch + Defuddle"
清洗工具: "Defuddle Markdown + Defuddle/Readability 正文提取"
原始附件:
  []
AI优质: "否"
AI打分: 33
AI分档: "非优质"
AI质检状态: "不通过"
AI打分理由: "内容为AWS RDS数据库灾备功能，与超节点/AI Rack/机柜级AI基础设施完全无关，无相关技术、商业或部署信号。"
AI质检模型: "ali-deepseek-v4-flash"
AI质检时间: "2026-08-21T09:56:09+08:00"
AI主题相关性: 0
AI来源权威性: 15
AI新颖性: 5
AI技术细节: 5
AI商业部署信号: 0
AI完整性: 8
AI摘要: "AWS为ARC Region switch新增Amazon RDS Switchover Read Replica执行块，可自动编排运行Oracle Data Guard的Amazon RDS数据库在多区域故障时的恢复。"
AI摘要模型: "ali-deepseek-v4-flash"
AI摘要时间: "2026-09-07T02:13:38.997Z"
采集批次: "2026年8月21日9点50分40秒"
采集批次ID: "20260821-095040-035"
去重键: "https://aws.amazon.com/cn/about-aws/whats-new/2026/08/region-switch-rds-switchover-execution-block"
---

Today, we are launching the **Amazon RDS Switchover Read Replica execution block** in **ARC Region switch**, which automates recovery orchestration for Amazon RDS databases running Oracle Data Guard in multi-Region workloads. **Amazon Application Recovery Controller (ARC) Region switch** helps customers orchestrate the failover of their multi-Region applications to achieve a bounded recovery time in the event of a Regional impairment.

To recover an Amazon RDS database running Oracle Data Guard during a Regional failover, customers perform manual steps to reverse the roles of the primary database and its read replica or to promote a read replica to a primary database instance. Region switch now allows you to automate this recovery with the **RDS Switchover Read Replica execution block**. The same execution block automates the role transition between the primary database and read replica with zero data loss during a planned failover scenario, or promotion of the read replica to a primary database during an unplanned failover where recovery speed is of the essence. With native cross-account support, you can orchestrate recovery of Amazon RDS instances that are hosted in a different account from your Region switch plan, enabling centralized management of recovery across your organization.

To get started, see the documentation for [Amazon RDS Switchover Read Replica execution block](https://docs.aws.amazon.com/r53recovery/latest/dg/rds-switchover-read-replica-block.html) . To learn more about ARC Region switch, visit the [Application Recovery Controller page](https://aws.amazon.com/application-recovery-controller/multi-region-recovery/) .

Application Recovery Controller Region switch is available in all commercial and AWS GovCloud (US) Regions. See the [ARC Region switch availability](https://docs.aws.amazon.com/r53recovery/latest/dg/aws-regions-rs.html).