Audits and planning
An infrastructure audit compares what a data centre is said to be with what is actually installed and how it is run: the Tier claimed against the paths built, the redundancy on paper against the load on each unit, and the age of each UPS against its parts' service life. The result is a report that ranks what to fix, what to plan and what can wait.
Whether the power path, and the systems around it, deliver what the site depends on. The audit walks the installation from the utility service to the rack and checks four things: whether the design matches the Tier or redundancy level claimed, whether the load still fits that redundancy, how close each UPS and battery string is to the end of its service life, and how the site is operated and maintained.
Because most outages give warning. Uptime Institute reports that in its survey of nearly 1000 operators, more than 75% said their most recent outage was preventable. An audit looks for the causes before they line up: a redundant UPS loaded beyond what one side can carry, a single-corded server on the wrong feed, capacitors past their service life, or a maintenance plan that skips the switchgear. Vertiv's analysis of its own service records puts the mean time between failures of a UPS that gets two preventive maintenance visits a year at 23 times that of one with none, which is the kind of gap an audit makes visible.
The UPS, the batteries and the power path are covered directly. Findings on cooling, fire protection and room cleanliness are recorded in the same report and routed to the matching specialist service, so the site gets one list of actions rather than separate reports that never meet. Tier Certification itself is outside any audit of this kind: Uptime Institute is the only organization permitted to certify data centres against its Tier Classification System. An audit checks the site against the published definitions and shows where it would fall short; it does not certify.
Send the site address, the UPS and generator list, the single-line diagram if you have one, and the Tier or redundancy level you need to confirm, through the audit quote request. For a site whose main concern is an older UPS, the modernization and replacement planning service is the faster starting point.
A review of the installed power path and the systems around it against the design level claimed, the load carried, the age of the equipment and the way it is maintained, ending in a ranked report.
No. Uptime Institute is the only organization permitted to certify against its Tier Classification System; an audit checks the site against the published definitions.
Findings on cooling, fire protection and cleanliness are recorded in the report and routed to the matching specialist service; the UPS and power path are covered directly.
Sources, checked 2026-10-04:
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