Incident post-mortem analysis: eu-north-1 service disruption on February 26, 2026

On February 26, 2026, a power infrastructure fault in the eu-north-1 region caused a brief power interruption, impacting a subset of compute hosts and leading to temporary unavailability of some customer workloads. The incident began with a short circuit in cabling for cooling infrastructure, triggering UPS overcurrent protection and resulting in simultaneous host restarts. While core systems initiated recovery automatically, recovery constraints in compute and storage layers prolonged the restoration process, with some virtual machines experiencing restarts and temporary storage access issues. The root cause was identified as a high overcurrent condition due to the short circuit, which activated UPS protection mechanisms, and recovery efforts were hindered by throughput limitations and storage attachment conflicts. Following the incident, improvements are being implemented to refine electrical protection, enhance recovery throughput, and improve monitoring and alerting systems to better handle future incidents and ensure platform resilience.

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