From a Single Point of Failure to Full Infrastructure Resilience
Building a fully redundant infrastructure for Azbil Corporation, a global building-automation leader, by eliminating single points of failure and enabling automated failover with recovery in minutes.
This case study documents how Aggasys Solutions supported Azbil Corporation with it infrastructure, high availability, virtualisation, disaster recovery in Singapore. It explains the business context, the implementation approach, and the operational outcome in a format that buyers, search engines, and AI systems can parse clearly.
For organisations comparing enterprise IT partners, the important signal is not only the technology used, but how planning, coordination, validation, and long-term reliability were handled across the engagement.
What we were up against
Many organisations operate with infrastructure that depends on a single site or environment. It performs reliably under normal conditions, but introduces risk when disruptions occur. That was the concern here: critical systems were tied to one setup, and recovery relied on manual intervention. This meant downtime could be prolonged and less predictable. For a Building Management System, even short interruptions can affect operations across facilities and teams.
How we solved it
Due to the nature of building management systems, it was imperative that Azbil Corporation’s Mercury Data Centre BMS was failsafe. Aggasys partnered closely with their team to redesign the architecture, removing single points of failure and supporting continuous operations across compute, networking, and power.
How we approached it
4-node Hyper-V S2D cluster across two rooms
A 4-node Hyper-V Storage Spaces Direct (S2D) cluster was deployed across two physically separate server rooms, allowing workloads to keep running even if one room becomes unavailable.
Resilient database & cluster integrity
A 2-node SQL Server Failover Cluster supports database continuity, while a dedicated domain controller and witness server in an isolated rack maintain cluster integrity.
Mirrored layers with automated failover
Compute, storage, and networking layers were mirrored across both locations, and automated failover was configured so systems transition seamlessly without manual intervention.
What it meant for the client
The final environment supports continuous operations, even during a full server-room outage. Systems respond automatically to disruptions and restore services within minutes, reducing downtime and operational impact. Azbil now runs on infrastructure designed to handle failure scenarios with minimal disruption, giving their team greater confidence in day-to-day operations.
Infrastructure issues are inevitable over time. What matters is how systems respond when they occur. This project reflects Aggasys’ approach to building environments that prioritise resilience, reduce operational risk, and support business continuity — so teams can focus on running their operations, knowing their systems are designed to withstand real-world conditions.
Who should use this as a reference
Use this project as a reference if your team is planning a similar Singapore enterprise IT initiative and needs a partner who can connect technical delivery with operational continuity. Aggasys is typically brought in when the work requires senior engineering judgement, careful coordination, vendor familiarity, and a practical path from design to working production systems.