You are here: Home / PAQ

PAQ

Measuring Performance of Data Centre Relative to Space Utilisation

* Based on Dell Blade Server 8450

** Based on Dell Blade Server 1855

  1. 2010 Correlation based on extrapolated trend from 2001 to 2006
  2. Performance per rack based on SPECInt2000 (7) rating for comparable CPUs in 2001 and 2006, times QTY of CPUs per rack
  3. Performance per Mē Based on SPECInt2000 Performance per rack, divided by the rack footprint in M2
  4. Server Rack density based on prevailing standards in 2001 and 2006, and equals proportion of total net space given over to servers
  5. PQ represents 'Performance Quotient', and is the relative performance over time, based on SPECInt2000/M2
  6. PAQ represents the 'Performance Area Quotient' and is the aggregated measure of PQ, plus relative densities over time
  7. SPECInt2000 is an internationally recognised indicator of CPU performance, published by:
  8. SPEC (The Standard Performance Evaluation Corporation) in collaboration with OSG (Open Systems Group). Ref. http://www.spec.org/

Changing times

Performance Area Quotient (PAQ)

Comparative Processing Footprint - 10 Year View based on processing power per rack or M2

2001 Factor of 35

  • Up to 10 Servers/rack
  • Single-processor servers
  • Power Consumption < 2kW/Rack
  • Power Consumption < 1 kW/mē Gross

2006 Factor of 12

  • Up to 168 Blade Servers/CPUs per standard Rack
  • Multi-processor servers
  • Significantly Reduced Footprint
  • Power Consumption > 24/kW/Rack
  • Power Consumption > 8kW/mē Gross

2010 Factor of 1

  • Extrapolated from 2001-2006 trends
  • Multi-core processors

Typical Rack Layout, Configuration & CFD

Low density option meets Client Day 1 (418w/mē) and Day 2 (985w/mē)
requirement based on typical
corporate IT benchmark requirement.
Data based on existing and current 2005/06
requirement from typical banks (Merrill Lynch, Barclays Capital, Morgan Stanley and Reuters)

High density option (additional facility) will allow Client to increase further still.
Data based on future 2007/08 requirement from
typical banks (Merrill Lynch, Barclays Capital, Morgan Stanley and Reuters)