Pulsant Blog

Data centre security checklist: executive oversight for compliance and continuity

Written by Pulsant | Apr 2, 2026 12:29:57 PM

Data centre security must meet strict compliance and risk standards, giving regulators, insurers, and clients confidence that critical data is protected. Without it, organisations risk audit failure, downtime, and reputational damage.

For executives and auditors, data centre security is part of wider governance and risk management. Oversight means confirming that physical safeguards, environmental systems, and compliance frameworks are in place and can be trusted.  

Having a structured checklist gives leadership a clear way to test resilience, regulatory alignment, and continuity of service, whether reviewing an existing facility, preparing for a migration, or assessing a new provider. 
Our data centre security checklist highlights the core areas every organisation should be able to evidence. 

Executive Data Centre Security Checklist:

  • Verify perimeter and internal access controls 
  • Review visitor entry policies and access logs 
  • Confirm CCTV coverage and retention policies 
  • Inspect fire suppression and detection systems 
  • Ensure power redundancy and uptime guarantees 
  • Validate temperature, environmental parameters and leak monitoring
  • Review ISO 27001 and other relevant certifications 
  • Check audit trails for access, maintenance, and incidents 
  • Confirm SLAs and disaster recovery commitments 
  • Review documentation during a data centre migration 
  • Confirm whether access is role-based and logged 
  • Ask how temporary access is managed for contractors or third parties 

Physical Security Checklist: Perimeter and Access Controls

Robust security begins at the perimeter, where fencing, bollards, and monitored gates form the first line of defence. Internally, access should be segmented by zone, with authentication, for example card required for data halls and racks. 

  

Visitor Policies and Entry Logs

Every visitor must be approved and logged, with access only granted to approved zones and racks. In multi-tenant environments, this prevents accidental or intentional cross-access between customers. Deliveries should follow the same controlled approach, with items authorised, logged, and handled by designated staff.

  • Review how access requests are authorised and recorded 
  • Ask whether visitor logs are available for audit review 
  • Confirm that deliveries are authorised and logged through a controlled process
  • Confirm how long footage is retained
  • Understand who can authorise access to recordings 
  • Verify last service date and compliance with standards (e.g. BS EN 15004) 
  • Ask what suppression agent is used and how refills are managed 
  • Confirm maintenance schedules for UPS and generators 
  • Review SLAs for uptime (e.g. Tier III = 99.982%) 
  • Ask where sensors are located and how alerts are triggered 
  • Review historical logs for patterns or irregularities 

CCTV Coverage and Retention

Surveillance should cover entry points, loading bays, and plant rooms. Retention policies matter as much as coverage; 90 days is typical, and access procedures must be defined for incident investigations. 

Fire Detection and Suppression

Detection and suppression systems must be designed to protect both people and equipment. Multi-zoned fire detection and inert gas suppression are standard in modern facilities. Early detection systems such as VESDA can provide additional assurance. 

Power Infrastructure and Redundancy

Continuity depends on reliable, redundant infrastructure. Data centres should provide dual feeds, UPS systems, and backup generators. Resilience is typically configured at N+1 or 2N, and load testing should be documented. 

Environmental Monitoring

Environmental threats are as disruptive as security breaches. Sensors should continuously track temperature, humidity, and potential water ingress, with automated alerts for anomalies. 

 

Compliance Standards and Certification

Certification provides assurance that controls are not only in place but audited. ISO 27001 is the baseline, with PCI DSS, SOC 2, or NHS DSPT required in regulated sectors. 

  • Request the latest certificates and audit summaries 
  • Confirm alignment with your industry’s obligations 
  • Confirm the frequency of DR testing 
  • Review escalation procedures for incident response 
  • Ensure documentation exists for pre- and post-migration states 
  • Ask how risks are mitigated during relocation 

Disaster Recovery and SLA Commitments

Even with strong physical security, outages can occur. Providers should have documented disaster recovery processes, tested failover capabilities, and clear escalation routes. 

Migration Checklist: Documentation and Controls

During a migration, physical security remains critical. Controls should include asset tracking, secure transit, restricted access during moves, and chain-of-custody records to prevent gaps in protection. 

Strengthening Executive Oversight

Executives do not need to audit every system themselves, but they must be able to confirm that appropriate evidence exists. This checklist provides a framework for verifying that a provider’s claims translate into documented, tested controls. 

Pulsant offers a board-ready PDF version of this checklist to support audits, compliance reviews, and migration planning.  

Get in touch to see how our facilities align with your organisation’s security requirements.