Amazon ARC Region Switch Automates Database Scaling and Failover for Multi-Region Workloads

Amazon Application Recovery Controller introduced execution blocks automating scaling of Aurora clusters and failover of Neptune global databases during regional recovery.

By Lucas Hayes · Editorial pseudonym · 2026-06-03 · 1 min read

AI-ASSISTED REPORTING · RETROSPECTIVE ARCHIVE

Retrospective edition: 2026-06-03. Source published: 2026-06-03. Added to this archive: 2026-11-03. This briefing was prepared later from the linked announcement; it was not published on this website on the historical edition date.

To reduce manual intervention during multi-Region failovers, Amazon ARC Region switch added execution blocks for automated Amazon Aurora serverless and provisioned cluster scaling, enabling right-sizing of secondary clusters during planned failovers. This avoids delays linked to manual scaling steps before routing production traffic.

Additionally, an automated failover execution block for Amazon Neptune global databases simplifies switching between primary and secondary clusters. These blocks support cross-account orchestration, allowing a unified failover plan managing database operations across accounts and AWS regions to accelerate recovery time objectives.

Source & further reading

ARC Region switch adds Amazon Aurora scaling and Amazon Neptune global database failover ↗

Source published 2026-06-03. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.