Service disruption in Europe data center

Incident Report for Ultimo

Postmortem

Service disruption in Europe data center on October 27

On October 27, 2026, a subset of customer environments hosted in our Europe data center experienced a service disruption.

The disruption was caused by an infrastructure incident within Microsoft Azure's West Europe region. Microsoft has identified the incident under Tracking ID 2ZNH-G10. According to Microsoft's Preliminary Post Incident Review, a power event affected infrastructure within a datacenter facility supporting Availability Zone 1 in West Europe. Multiple backup generators did not start as expected, and issues were also identified with parts of the facility's UPS infrastructure.

The Azure incident affected multiple services, including Azure SQL Database. Microsoft reported connectivity and management-operation failures for Azure SQL Database as a result of the underlying infrastructure disruption.

Within our platform, only customer environments dependent on affected Azure infrastructure experienced downtime. Other environments continued to operate normally.

Service was restored following the recovery of the affected Azure infrastructure. Microsoft subsequently confirmed recovery of Azure SQL Database as part of the broader infrastructure recovery.

Microsoft is continuing its investigation and has stated that a Final Post Incident Review will be published after its investigation is complete.

Posted Oct 28, 2026 - 08:55 CET

Resolved

The service disruption affecting a subset of environments in our Europe data center has been resolved. All affected environments are operational again.

Our investigation indicates that specific Azure SQL Elastic Pools became unavailable, resulting in temporary downtime for the customer environments using those pools. Current findings point to an underlying Microsoft Azure issue.

We are continuing our investigation with Microsoft. A Root Cause Analysis (RCA) will be provided directly to the affected customers once the investigation has been completed.
Posted Oct 27, 2026 - 17:22 CET

Investigating

We are currently investigating an issue affecting a growing number of environments in our Europe data center.

The majority of the approximately 2,750 environments hosted in this data center continue to operate normally. Our team is actively investigating the issue and working to restore normal service to the affected environments.

We will provide further updates as more information becomes available
Posted Oct 27, 2026 - 16:08 CET
This incident affected: Ultimo Cloud (Ultimo Cloud - Europe).