Case Study: The Cooling System Was Running — But the Data Hall Was Still Overheating
OverviewData center cooling systems are often designed with redundant cooling units, pumps, and power supplies.
Cooling and Environmental ControlArticles / Knowledge Base
Articles / Knowledge Base
56 results
Grounding vs. Earthing in Data Centers
The terms grounding and earthing are frequently used in data center electrical design. In everyday engineering conversation, they are sometimes treated as interchangeable.
Data Center Electrical Systems
Best Practices for Data Center Network Rooms, Meet-Me Rooms, and Telecommunications Distribution Infrastructure
IntroductionThe telecommunications and network infrastructure of a data center is one of the facility’s most important availability systems.
Networking and Telecommunications
Auditing Data Center Infrastructure: Building an Evidence-Based Audit Program
A practical guide to auditing data center infrastructure: building an evidence-based audit program, focused on evidence, risk, conformity, corrective action and data center resilience.
Auditing and Quality Assurance
Data Center Quality Assurance: From Design Review to Operational Acceptance
A practical guide to data center quality assurance: from design review to operational acceptance, focused on evidence, risk, conformity, corrective action and data center resilience.
Auditing and Quality Assurance
Audit Evidence and Nonconformities in Data Centers: From Observation to Corrective Action
A practical guide to audit evidence and nonconformities in data centers: from observation to corrective action, focused on evidence, risk, conformity, corrective action and data center resilience.
Auditing and Quality Assurance
Data Center Compliance Audits: Mapping Standards, Policies and Technical Requirements
A practical guide to data center compliance audits: mapping standards, policies and technical requirements, focused on evidence, risk, conformity, corrective action and data center resilience.
Auditing and Quality Assurance
Closing the Audit Loop: Root Cause, Corrective Action and Verification of Effectiveness
A practical guide to closing the audit loop: root cause, corrective action and verification of effectiveness, focused on evidence, risk, conformity, corrective action and data center resilience.
Auditing and Quality Assurance
FAT and SAT for Data Center Equipment: What to Test Before and After Delivery
A practical guide to Factory Acceptance Testing and Site Acceptance Testing for data center equipment, explaining scope, witnesses, test procedures, punch items, shipping risks, repeat tests and acceptance evidence.
Testing and Commissioning
Environmental and Leak Monitoring in Data Centers: Sensors, Placement and Response
A practical guide to environmental monitoring in data centers, covering rack inlet temperature, humidity, dew point, water leak detection, fuel and room alarms, sensor placement, redundancy and response procedures.
BMS, EPMS and DCIM
Environmental Control in Data Centers: Temperature, Humidity, Dew Point and Sensor Strategy
A practical guide to environmental control for data centers, explaining temperature, humidity and dew point at IT inlets, ASHRAE equipment classes, sensor placement, alarm thresholds, trends and change control.
Cooling and Environmental Control
Static Transfer Switches in Data Centers: Protecting Single-Corded Critical Loads
A practical explanation of Static Transfer Switches for data centers, covering dual-source operation, fast solid-state transfer, source quality, synchronization, fault behavior, maintenance and use with single-corded equipment.
Data Center Electrical Systems
Data Center Security Governance and Compliance: Building a Unified Control Framework
A practical framework for governing data center security and compliance across physical infrastructure, information security, operations, risk, ownership, evidence and continual improvement.
Security and Compliance
Compliance Mapping for Data Centers: Turning Standards and Regulations into Operational Controls
A practical method for translating standards, regulations, contracts and customer requirements into a traceable data center compliance matrix with owners, controls, evidence and review cycles.
Security and Compliance
Commissioning and Handover Planning in Data Center Projects: Start Before Construction Ends
How to integrate commissioning, documentation, training and operational readiness into the project plan from design through final acceptance.
Design and Project Management
Human Factors in Data Center Operations: Designing Work to Reduce Error
A practical guide to reducing operational error in data centers through task design, procedures, supervision, verification and learning.
Human Factors and Organisational Culture
Competence Management for Data Center Teams: Skills, Authorization and Continuous Development
How to build a controlled competence framework for data center operators, engineers and technicians using role profiles, assessments, authorization and refresher training.
Human Factors and Organisational Culture
Shift Handover in Data Centers: Preventing Information Loss Between Operations Teams
A practical framework for reliable shift handover covering plant status, alarms, impairments, work permits, risks, changes and outstanding actions.
Human Factors and Organisational Culture
Fatigue and Workload Management in Critical Data Center Operations
A practical approach to managing fatigue, workload, night work, emergency response and psychosocial risks in critical data center operations.
Human Factors and Organisational Culture
Building a Strong Operational Culture in Data Centers: Ownership, Escalation and Learning
A practical guide to building an operational culture that supports ownership, safe escalation, procedural discipline, learning and continuous improvement.
Human Factors and Organisational Culture
Health and Safety Management in Data Centers: Building a Critical-Facility Safety System
Extended educational engineering article covering occupational health and safety management across electrical, mechanical, fire, construction and operational activities, with practical controls, lifecycle considerations and reference-based guidance.
Health, Safety and Environment
Electrical Safety in Data Centers: Switching, Isolation, Arc-Flash Risk and Safe Work
Extended educational engineering article covering electrical safety for energized infrastructure, isolation, switching, verification and maintenance, with practical controls, lifecycle considerations and reference-based guidance.
Health, Safety and Environment
Permit to Work and LOTO in Data Centers: Controlling High-Risk Maintenance
Extended educational engineering article covering permit-to-work, energy isolation, lockout/tagout, simultaneous operations and safe restoration, with practical controls, lifecycle considerations and reference-based guidance.
Health, Safety and Environment
Fire, Battery and Chemical Safety in Data Centers: Managing Specialized Hazards
Extended educational engineering article covering fire protection interfaces, battery hazards, fuels, refrigerants, cleaning chemicals and emergency response, with practical controls, lifecycle considerations and reference-based guidance.
Health, Safety and Environment
Environmental Management for Data Centers: Energy, Water, Waste, Noise and Pollution Control
Extended educational engineering article covering environmental management covering energy, water, emissions, waste, noise, spills and lifecycle controls, with practical controls, lifecycle considerations and reference-based guidance.
Health, Safety and Environment
Data Center Audit Programs: Building Evidence-Based Assurance Across the Facility Lifecycle
Extended technical training article on data-center auditing and quality assurance with lifecycle evidence, QA/QC, commissioning and corrective-action guidance.
Auditing and Quality Assurance
Quality Assurance and Quality Control in Data Center Construction
Extended technical training article on data-center auditing and quality assurance with lifecycle evidence, QA/QC, commissioning and corrective-action guidance.
Auditing and Quality Assurance
Managing Nonconformities and Corrective Actions in Critical Data Centers
Extended technical training article on data-center auditing and quality assurance with lifecycle evidence, QA/QC, commissioning and corrective-action guidance.
Auditing and Quality Assurance
Technical Documentation Audits for Data Centers: Proving the Facility Matches Its Records
Extended technical training article on data-center auditing and quality assurance with lifecycle evidence, QA/QC, commissioning and corrective-action guidance.
Auditing and Quality Assurance
Commissioning Quality Audits: Verifying Data Center Systems Before Operational Acceptance
Extended technical training article on data-center auditing and quality assurance with lifecycle evidence, QA/QC, commissioning and corrective-action guidance.
Auditing and Quality Assurance
Data Center Commissioning Fundamentals: From Design Intent to Proven Operational Performance
Extended technical training article covering data-center commissioning planning, functional testing, IST, failure scenarios, evidence and operational readiness.
Testing and Commissioning
Electrical Commissioning in Data Centers: MV, Transformers, Generators, UPS and Distribution
Extended technical training article covering data-center commissioning planning, functional testing, IST, failure scenarios, evidence and operational readiness.
Testing and Commissioning
Mechanical and Cooling Commissioning in Data Centers: Proving Capacity, Control and Resilience
Extended technical training article covering data-center commissioning planning, functional testing, IST, failure scenarios, evidence and operational readiness.
Testing and Commissioning
Integrated Systems Testing for Data Centers: Proving Failure, Failover and Recovery
Extended technical training article covering data-center commissioning planning, functional testing, IST, failure scenarios, evidence and operational readiness.
Testing and Commissioning
Commissioning Documentation and Handover: Turning Test Evidence into Operational Readiness
Extended technical training article covering data-center commissioning planning, functional testing, IST, failure scenarios, evidence and operational readiness.
Testing and Commissioning
Data Center Fire Protection Engineering: Building a Layered Strategy from Prevention to Recovery
Extended technical training article covering data-center fire prevention, early detection, clean-agent suppression, life-safety interfaces, commissioning and lifecycle maintenance.
Health, Safety and Environment
Early Fire Detection in Data Centers: VESDA, Spot Detection, Alarm Logic and Response
Extended technical training article covering data-center fire prevention, early detection, clean-agent suppression, life-safety interfaces, commissioning and lifecycle maintenance.
Health, Safety and Environment
Clean-Agent Fire Suppression in Data Centers: Design, Safety, Integrity Testing and Operations
Extended technical training article covering data-center fire prevention, early detection, clean-agent suppression, life-safety interfaces, commissioning and lifecycle maintenance.
Health, Safety and Environment
Data Center Fire and Life-Safety Interfaces: HVAC, Access Control, Power and Emergency Logic
Extended technical training article covering data-center fire prevention, early detection, clean-agent suppression, life-safety interfaces, commissioning and lifecycle maintenance.
Health, Safety and Environment
Fire-System Testing and Maintenance in Data Centers: Keeping Protection Effective Throughout the Lifecycle
Extended technical training article covering data-center fire prevention, early detection, clean-agent suppression, life-safety interfaces, commissioning and lifecycle maintenance.
Health, Safety and Environment
Power Transformers in Data Centers: Selection, Sizing, Loading, Efficiency and Resilience
Comprehensive long-form training article covering transformers, MV switchgear, protection, short-circuit studies, commissioning, maintenance and failure response in data centers.
Utility Supply and Transformers
Medium-Voltage Switchgear for Data Centers: Architecture, Ratings, Interlocks and Internal-Arc Safety
Comprehensive long-form training article covering transformers, MV switchgear, protection, short-circuit studies, commissioning, maintenance and failure response in data centers.
Utility Supply and Transformers
Protection Coordination for Data Center MV Systems: Relays, CTs, VTs, Breakers and Selective Fault Clearing
Comprehensive long-form training article covering transformers, MV switchgear, protection, short-circuit studies, commissioning, maintenance and failure response in data centers.
Utility Supply and Transformers
Short-Circuit, Earthing and Arc-Fault Engineering in Data Center Medium-Voltage Networks
Comprehensive long-form training article covering transformers, MV switchgear, protection, short-circuit studies, commissioning, maintenance and failure response in data centers.
Utility Supply and Transformers
Transformer and MV Commissioning in Data Centers: FAT, Site Tests, Protection and Functional Switching
Comprehensive long-form training article covering transformers, MV switchgear, protection, short-circuit studies, commissioning, maintenance and failure response in data centers.
Utility Supply and Transformers
Transformer and Medium-Voltage Operations and Maintenance: Condition Monitoring, Switching and Failure Response
Comprehensive long-form training article covering transformers, MV switchgear, protection, short-circuit studies, commissioning, maintenance and failure response in data centers.
Utility Supply and Transformers
Preventive Maintenance Strategy for Critical Data Centers: Asset Criticality, Intervals and Maintenance Windows
Comprehensive long-form data-center maintenance article covering maintenance governance, asset criticality, risk, PTW/LOTO, condition monitoring, testing, return to service and lifecycle reliability.
Preventive and Corrective Maintenance
Condition-Based Maintenance in Data Centers: Using Trends, Inspections and Diagnostics to Detect Deterioration
Comprehensive long-form data-center maintenance article covering maintenance governance, asset criticality, risk, PTW/LOTO, condition monitoring, testing, return to service and lifecycle reliability.
Preventive and Corrective Maintenance
Corrective Maintenance in Live Data Centers: Repairing Failures Without Creating a Second Incident
Comprehensive long-form data-center maintenance article covering maintenance governance, asset criticality, risk, PTW/LOTO, condition monitoring, testing, return to service and lifecycle reliability.
Preventive and Corrective Maintenance
Maintenance Under Reduced Redundancy: Controlling Risk When a Data Center Is Already Degraded
Comprehensive long-form data-center maintenance article covering maintenance governance, asset criticality, risk, PTW/LOTO, condition monitoring, testing, return to service and lifecycle reliability.
Preventive and Corrective Maintenance
Maintenance Quality Control in Data Centers: Work Orders, Testing, Closeout and Return to Service
Comprehensive long-form data-center maintenance article covering maintenance governance, asset criticality, risk, PTW/LOTO, condition monitoring, testing, return to service and lifecycle reliability.
Preventive and Corrective Maintenance
Maintenance Optimization and Lifecycle Reliability for Data Center Infrastructure
Comprehensive long-form data-center maintenance article covering maintenance governance, asset criticality, risk, PTW/LOTO, condition monitoring, testing, return to service and lifecycle reliability.
Preventive and Corrective Maintenance
The Hidden Risk Beneath Data Centers: Inspection Chambers & Backflow Failures
In modern data center design, significant attention is given to redundancy, cooling efficiency, power resilience, and uptime. However, one critical risk area is often overlooked or underestimate...
Data Centre Design and Resilience
Why Data Center Transformers Deserve More Attention
When discussing data center reliability, most conversations revolve around UPS systems, generators, batteries, and cooling infrastructure. However, one of the most critical assets in the entire ...
Utility Supply and Transformers
Understanding the BT Slab in Data Centers: More Than Just a Thick Concrete Floor
When discussing data center construction, engineers often refer to the BT (Base Transfer) Slab. Many people assume it simply means a thicker concrete floor. In reality, it is one of the most critical structural elements in a mission-critical facility.
Data Centre Design and Resilience
The Greatest Leadership Skill Isn't Speaking... It's Listening
Throughout my years of managing projects and leading teams, I've learned that many problems don't begin with a lack of expertise or limited resources.
Human Factors and Organisational Culture