Tier Review
As tier-based designs have become industry standard, independent third-party assessment is often required during design or build phases. ONE9 3NINE delivers tier review against the client's chosen standard — UTI, TIA, BICSI, or others — to reassure customers that infrastructure investment is properly classified and fit for purpose.
01 — Scope
Confirm target standard
02 — Assess
Full technical facility review
03 — Classify
Determine actual tier
04 — Report
Findings and rectification advice
Years of Experience
Industries Served
Projects Delivered
Challenges We Solve
When "tier" becomes a marketing term, we bring it back to standards.
What tier level is my data centre?
A full tier review is the most reliable way to investigate a facility's technical compliance against international design standards. ONE9 3NINE performs a due diligence survey of any existing facility and delivers a documented report of deficiencies and suggested rectifications — giving clients clarity on their actual tier rating, whether the facility is new or legacy.
Is my data centre the correct tier level?
Determining the right tier is a time-consuming exercise most businesses underestimate — and many only revisit it after a first failure. Tier level should reflect acceptable downtime and time-to-recovery thresholds the business can genuinely tolerate. ONE9 3NINE works alongside management to identify the optimum tier using measurable variables like MTBF and TTR, not assumption.
Do I need Tier 4?
The industry tends to equate bigger tier with better facility — and Tier 3 is the common compromise because of Tier 4's cost premium. But do most businesses genuinely need Tier 4? Often, a resilient strategy combining infrastructure and IT fault tolerance delivers the same outcome for a fraction of the investment. ONE9 3NINE helps clients think through the full resilience picture — and in many cases, the honest answer is "no, you don't need Tier 4."
Ready to know your actual tier level?
Speak with our consulting team about an impartial tier review against your preferred international standard.