ATP Capacity Planning & Scalability Flashcards
6 cards from real ATP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 ATP Capacity Planning & Scalability flashcards as text
What role does a 'bill of materials' (BOM) play in data center capacity planning?
Answer: It inventories all installed hardware, software, and infrastructure components
A bill of materials inventories every installed component—servers, networking gear, cabling, and infrastructure—providing the baseline needed for accurate capacity planning.
How does virtualization affect data center capacity planning?
Answer: It consolidates workloads onto fewer physical servers, improving utilization rates
Server virtualization consolidates multiple workloads onto fewer physical hosts, increasing utilization efficiency and reducing the total hardware footprint needed.
What is 'N+1' redundancy in the context of capacity planning?
Answer: Providing one additional component beyond the minimum needed for full operation
N+1 redundancy means one spare component exists beyond the minimum required, so if any single component fails, operations continue without interruption.
Which metric helps measure how efficiently a data center uses its available power capacity?
Answer: Power Utilization Rate (PUR), defined as IT load divided by total design load capacity
The Power Utilization Rate compares actual IT load to total design capacity, revealing how efficiently the provisioned power infrastructure is being used.
What is the primary purpose of a 'data hall' layout plan in capacity planning?
Answer: To allocate rack positions to tenants or departments and map power and cooling availability per zone
A data hall layout plan maps rack positions, power feeds, and cooling zones, enabling planners to assign space to tenants or business units based on available capacity.
In capacity planning, what does 'lead time' refer to and why does it matter?
Answer: The time between ordering infrastructure and its availability for use, which affects when planning must begin
Lead time is the procurement-to-deployment interval for major infrastructure; long lead times require that capacity orders be placed well before current capacity is exhausted.