What do datacenter certifications actually certify?
They answer different questions. A tier rating or an EN 50600 availability class describes how resilient the facility's power and cooling are. ISO 27001 and SOC 2 describe how the operator manages information security. ISO 50001 describes how it manages energy. A site can be strong on one and silent on another, so read each for what it covers.
What do Tier I to Tier IV mean?
The tier system, from the Uptime Institute, grades resilience in four steps. Tier I is basic capacity. Tier II adds redundant components. Tier III is concurrently maintainable: any component can be taken out for maintenance without shutting down IT. Tier IV is fault tolerant: the site keeps running through a single failure.
“Built to Tier III” and “Tier III certified” are not the same claim. Certification is awarded in stages, for the design documents, for the constructed facility and for operations. Ask which stage, if any, the site holds.
How does EN 50600 differ?
EN 50600 is the European standard series for datacenter facilities and infrastructure. It covers construction, power, cooling, cabling, security and management, and it uses availability classes 1 to 4 that broadly follow the same idea as tiers. European buyers and public bodies increasingly ask for it, and sites can be audited against it by independent certification bodies.
Where do ISO 27001, SOC 2 and ISO 50001 fit?
- ISO 27001: an information security management system, covering how the operator protects access, data and operations.
- SOC 2: an audit report on security and related controls, common with North American customers. Ask for the latest report and its period.
- ISO 50001: an energy management system, showing that the operator measures and improves its energy use.
What should you ask when an offer quotes a certification?
Ask who issued it, what scope it covers (the whole campus or one building), when it expires, and for a copy. Certificates are documents, so they belong in the due diligence after both sides have chosen to engage, usually under a mutual NDA. On the marketplace, listed certifications add a small bonus to the fit score, and changing them sends a verified listing back to staff review.