April 2026: Partial Cloud Service Disruption in Korea (Seoul) Zone B
A cooling system anomaly at Alibaba Cloud's Korea Zone B data center caused disruptions to Elastic Compute Service (ECS), Apsara File Storage NAS, and Elastic Block Storage (EBS) services. Engineers executed emergency shutdown procedures to protect affected cloud products and began migration operations. The cooling system was progressively restored, power was recovered, and cloud services underwent phased restoration.