CDCS Capacity Planning & Lifecycle Management Flashcards

Which Uptime Institute tier requires fully redundant power and cooling with no single point of failure and concurrent maintainability?

Answer: Tier III

Uptime Institute Tier III requires N+1 redundancy with multiple active power and cooling distribution paths, allowing maintenance of any component without shutting down the IT load.

What is the significance of the 'critical load' figure in data center capacity planning?

Answer: The total IT power consumption (servers, storage, network) that the facility's power and cooling infrastructure must support

Critical load is the total IT equipment power draw (servers, storage, networking) that the UPS, generators, and cooling systems must be sized and maintained to support under all conditions.

In a DCIM-based capacity planning workflow, what is a 'what-if' scenario analysis used for?

Answer: Modeling the impact of proposed changes (adding racks, increasing loads) on power, cooling, and space before implementation

What-if scenario modeling in DCIM allows planners to simulate proposed deployments and predict their effect on power draw, cooling capacity, and floor space before any physical change is made.

What does 'IT load growth rate' forecasting help determine during long-range data center capacity planning?

Answer: When additional power, cooling, or floor space infrastructure investments will be needed to support projected demand

Forecasting IT load growth rate predicts when the current power, cooling, and space capacity will be exhausted, enabling facilities teams to plan and fund infrastructure expansions proactively.

Which practice helps prevent 'cabling chaos' and maintains accurate documentation in a high-density data center?

Answer: Implementing structured cabling standards with labeled patch panels, color-coded cables, and maintained cable plant documentation

Structured cabling with labeled ports, color-coded cables by function, and maintained documentation ensures traceability, reduces troubleshooting time, and supports accurate capacity and change management.

What is the primary purpose of a data center 'hot spare' parts inventory program?

Answer: To maintain critical replacement components on-site to minimize mean time to repair (MTTR) during hardware failures

A hot spare parts inventory keeps critical replacement components—power supplies, fans, drives, optics—on-site so failed components can be swapped immediately, directly reducing MTTR and minimizing downtime.