Thermal event in West Europe region

Impact Statement: Starting at approximately 17:00 UTC on 05 November 2025, a subset of customers in the West Europe region may experience service disruptions or degraded performance across multiple services, including Virtual Machines, Azure Database for PostgreSQL Flexible Servers, MySQL Flexible Servers, Azure Kubernetes Service, Storage, Service Bus, and Virtual Machine Scale Sets, among others. Customers using Azure Databricks in West Europe may see degraded performance when launching or scaling all-purpose and jobs compute workloads, impacting Unity Catalog and Databricks SQL operations.The issue was caused by a thermal event affecting datacenter cooling systems, which led to a subset of storage scale units going offline in a single availability zone. Resources in other availability zones that depend on these storage units may also be impacted.Current Status: We have recovered one of the impacted Storage scale units and customers are starting to see signs of recovery. Recovery efforts remain in progress on other impacted Storage scale units and we anticipate seeing signs of recovery in approximately on these storage scale units in approximately 90 minutes. The next update will be provided within 2 hours, or as events warrant.