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ISS Technology Update Volume 7, Number 9

ISS Technolo

y Update

Volume 7, Number 9

Keeping you informed of the latest ISS technology

Quick tips for differences in energy efficiency between online “double-conversion” technology and online

“on-demand” technology ........................................................................................................................1

Use iLO Advanced to capture server event video......................................................................................2

HP Industry Standard Servers - a leader in industry standards for storage ..............................................4

Meet the Expert—Mark Fletcher (confessions of an ISS “hitman”).............................................................6

Common SM CLP scripting commands for ProLiant server management, Part 2 ........................................7

Recently published industry standard server technology papers ............................................................13

Contact us .............................................................................................................................................13

Quick tips for differences in energy efficiency between online “double-

conversion” technology and online “on-demand” technology

This quick tip first defines online “on-demand” technology and online “double-conversion” technology. It then contrasts the

energy efficiency performance delivered by these two technologies, each of which uses a different method to ensure a reliable

power source for continuous data center operations.

Online “double-conversion” technology

Online double-conversion is currently the technology that most data centers use for their uninterruptible power supply (UPS)

systems. In this type of UPS, the inverter is always on; it continuously converts AC to DC and then DC to AC. This generates a

pristine, or very low-distortion, sinusoidal waveform; however, efficiency is significantly lower than with online on-demand.

Online “on-demand” technology…plus double conversion

Online on-demand is an energy efficient technology that allows incoming power to connect directly to the load through

protected circuits when the incoming power is within specifications. When the power is not within specifications, the double-

conversion technology takes over to regulate the incoming voltage to an acceptable level for the load. Both online on-demand

and double-conversion modes protect the critical load from voltage fluctuations and from damaging transients that can originate

at the utility. And in the event the power goes out completely, the energy from the battery is converted to provide power to the

load until the utility returns service or until a graceful equipment shutdown becomes necessary.

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Inhaltsverzeichnis

Seite 1 - ISS Technolo

ISS Technology Update Volume 7, Number 9 1 ISS Technology Update Volume 7, Number 9 K

Seite 2 - Conclusion

ISS Technology Update Volume 7, Number 9 10 cd version exit show set T

Seite 3 - Summary

ISS Technology Update Volume 7, Number 9 11 Properties type=PCI Expres

Seite 4

ISS Technology Update Volume 7, Number 9 12 Additional resources For additional info

Seite 5 - Energy Efficient Ethernet

Seite 6

ISS Technology Update Volume 7, Number 9 2 Differences in energy efficiency From an

Seite 7 - Turn on the user ID light

ISS Technology Update Volume 7, Number 9 3 Automatic or on-demand recording The vide

Seite 8

ISS Technology Update Volume 7, Number 9 4 HP Industry Standard Servers - a leader i

Seite 9

ISS Technology Update Volume 7, Number 9 5 Institute of Electrical and Electronics E

Seite 10

ISS Technology Update Volume 7, Number 9 6 Meet the Expert—Mark Fletcher (confession

Seite 11

ISS Technology Update Volume 7, Number 9 7 Kevin: Mark is a constant advocate for de

Seite 12 - Additional resources

ISS Technology Update Volume 7, Number 9 8 Targets record1 Properties

Seite 13 - Contact us

ISS Technology Update Volume 7, Number 9 9 /system1 Targets firmware Pr

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