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Passive Cooling Technology

From Emulex Labs

Emulex – Reliability by Design

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Emulex LPe12000 Familyvs

QLogic QLE2562 Family

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Testing Procedure

No Airflow– Server fans blocked off to prevent airflow– Lab HVAC system may have had some effect

Heat Soak– A minimum of 10 minutes was allowed for the parts to reach a stable temp, HBA ports idle of

I/O traffic but ports are looped back

Calibration– Spot temps were checked with a Omega contact thermocouple– HBAs were painted flat black to prevent reflections– The cameras general emissivity was adjusted to .92 to match the reflection properties of the

painted surface and to coincide with the Omega temps

IR Camera– Electrophysics Hotshot HD-S

• 640x480 IR imager – +/-2c accuracy spec - -20c-350c calibrated

Test Bench

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• LPe12002 operates 27◦ F cooler than QLE2562• Why is this significant?

• Reduces heat stress• Reduces thermal cycles

• Benefits of cooler operation:• Increase server reliability• Improve SAN availability

Increase Server Reliability

QLogic QLE2562Emulex LPe12002

Max = 121○ F Max = 148○ F

150

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Emulex I/O controller operates 12◦ F cooler than QLogic –even without a heat sink!

Emulex solutions are designed to work in broad range of server environments without :

– Sacrificing reliability– Impacting performance – Jeopardizing SAN availability

QLogic QLE2562Emulex LPe12002

More Reasons To Choose Emulex…

Max = 148○ F

Max = 136○ F150

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°

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90◦ F

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Heat stressed components generally exhibit lower reliability and system performance impacting:

– Device reliability– System availability– Network serviceability

Emulex 8Gb/s I/O controllerA operates cooler than QLogic’s 8Gb/s I/O controller, resulting in 166% greater MTBF performanceB

RAS Advantages of Emulex 8Gb/s HBAs

A: Junction Temperature

B: Calculation based on standard Bellcore methodology and assumes same die size

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So which HBA would data center administrators prefer to have operating in their servers?

Emulex HBAs provide the greatest level of reliability and SAN availability by operating cooler than the competition in a broader range of server environments

Emulex - The Choice is Clear

OR

QLogic QLE2562

Emulex LPe12002

The Cooler Running HBA The Hotter Running HBA

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The LPe12000 family with passive cooling provides superior reliability

– Optimize server performance – Improve SAN availability

Emulex has superior MTBF hours– Emulex’s 10 Million vs QLogic’s 7.6 million

Emulex LPe12002 operates 27º F cooler than QLogic QLE2562 running identical workloads

Emulex LPe12002 – Maximizes server performance– Increases server reliability– Reduces maintenance costs– Improves SAN availability

Emulex QLogic100

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I/O Controller Temperature Performance

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Competitive Overview – QLogicCooler Operation & Better Efficiency and MTBF

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Emulex LP21000 Family vs

QLogic QLE8042 Family

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Leverages similar passive cooling technology as the LPe12000 familyEmulex LP21002 provides greater reliability and energy savings than QLogic’s QL8042 FCoE CNA

– Lower Power Consumption• 19% less power than QLogic QLE8042

– Higher Reliability• Operate 28% cooler than QLogic QLE8042

Emulex LP21000 Family – A Better Solution

QLogic QLE8042Emulex LP21002

Max = 190○ F

Max = 148○ F

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170180

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16015014013012011010090

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So which CNA would data center administrators prefer to have operating in their servers?

Emulex CNAs provide the greatest level of reliability and SAN availability by operating cooler than the competition in a broader range of server environments.

QLogic QLE8042Emulex LP21002

Emulex - The Choice is Clear

OR

The Hotter Running CNA

The Cooler Running CNA

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While competitors talk about reliability, Emulex delivers it

More Data center and IT professionals rely on Emulex than any other brand to ensure reliable server to SAN connectivityA

Emulex 8Gb/s Fibre Channel and FCoE CNA solutions are the clear choice for:

– Unrivaled performance– Uncompromised reliability

Emulex Is the Reliability Leader

March 2009 Survey

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Thank You