ISS Technology Update, Volume 7, Number 9

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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.

Summary of content (13 pages)

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ISS Technology Update Volume 7, Number 9 ISS Technology 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................................................................................
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ISS Technology Update Volume 7, Number 9 Differences in energy efficiency From an energy efficiency standpoint, the differences between the two technologies are as follows: • State-of-the-art, double-conversion UPS models provide 92% to 93% efficiency, while older models range from 88% to 90%. • Online “on-demand” technology, such as the HP R12000/3, provides a higher efficiency at 97%.
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ISS Technology Update Volume 7, Number 9 Automatic or on-demand recording The video feature of iLO Advanced allows powerful remote troubleshooting capabilities with automatic video recording and playback: • Record and play back the last boot sequence • Record and play back the last fault sequence It is also possible to record an event on-demand: • Bugs can be recorded • Trainings can be recorded Flexible storage options The iLO Advanced videos recorded automatically are stored on the iLO hardware (built
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ISS Technology Update Volume 7, Number 9 HP Industry Standard Servers - a leader in industry standards for storage HP is involved in numerous industry standards bodies relating to server storage. Industry standards increase interoperability between past, current, and future products.
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ISS Technology Update Volume 7, Number 9 Institute of Electrical and Electronics Engineers (IEEE) HP participates in several IEEE 802.1 and 802.3 Ethernet (the underlying transport for iSCSI and FCoE) working groups. Work is underway defining 40 Gbps and 100 Gbps Ethernet, Data Center Ethernet (lossless features critical for FCoE), and Energy Efficient Ethernet (power down idle links). Visit http://standards.ieee.org/getieee802/ for more information.
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ISS Technology Update Volume 7, Number 9 Meet the Expert—Mark Fletcher (confessions of an ISS “hitman”) Mark Fletcher is an HP Industry Standard Server (ISS) systems engineer who supports hardware platform teams by solving problems that normally occur during development and test cycles. That’s the answer Mark would give if you asked him what he does.
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ISS Technology Update Volume 7, Number 9 Kevin: Mark is a constant advocate for designing products to meet our customers’ needs. Mark has worked numerous customer issues and understands the customer dissatisfaction caused by quality issues and the associated costs to customers in terms of downtime. Mark pushes for the highest levels of quality. He influences the design teams to go the extra mile to ensure quality.
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ISS Technology Update Volume 7, Number 9 Targets record1 Properties number=1 severity=Informational date=01/29/2008 time=14:32 description=IML Cleared (iLO 2 user:Administrator) record3 Properties number=3 severity=NonCritical date=04/01/2008 time=14:38 description=POST Error: 1794-Drive Array - Array Accelerator Battery Charge Low Verbs cd version exit show set Properties Verbs cd version exit show delete set hpiLO-> Retrieve the system health from all sensors T
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ISS Technology Update Volume 7, Number 9 /system1 Targets firmware Properties version=P56 date=05/21/2006 Verbs cd version exit show set bootconfig1 Targets bootsource1 Properties bootorder=1 bootsource2 Properties bootorder=2 bootsource3 Properties bootorder=3 Verbs cd version exit show set Verbs cd version exit show set log1 Targets record1 Properties number=1 severity=Informational date=05/08/2008 time=18:23 description=IML Cleared (iLO 2 user:admin) Verbs cd version exit show set Verbs cd version exit
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ISS Technology Update Volume 7, Number 9 cd version exit show set Targets logical_processor1 Properties current_pstate=1 pstate0_avg=9.5 pstate1_avg=90.5 pstate2_avg=0.0 pstate3_avg=0.0 pstate4_avg=0.0 pstate5_avg=0.0 pstate6_avg=0.0 pstate7_avg=0.0 logical_processor4 Properties current_pstate=1 pstate0_avg=11.1 pstate1_avg=88.9 pstate2_avg=0.0 pstate3_avg=0.0 pstate4_avg=0.0 pstate5_avg=0.0 pstate6_avg=0.0 pstate7_avg=0.
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ISS Technology Update Volume 7, Number 9 Properties type=PCI Express width=8x Verbs cd version exit show set fan1 Properties DeviceID=Fan 1 ElementName=I/O Board OperationalStatus=Ok VariableSpeed=Yes DesiredSpeed=45 HealthState=Ok fan2 Properties DeviceID=Fan 2 ElementName=I/O Board OperationalStatus=Ok VariableSpeed=Yes DesiredSpeed=45 HealthState=Ok fan12 Properties DeviceID=Fan 12 ElementName=CPU OperationalStatus=Ok VariableSpeed=Yes DesiredSpeed=36 HealthState=
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ISS Technology Update Volume 7, Number 9 Additional resources For additional information on the topics discussed in this article, visit: Resource URL HP Integrated Lights-Out www.hp.com/go/ilo DMTF SMASH information www.dmtf.org/standards/mgmt/smash/ PuTTY and Plink www.google.
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ISS Technology Update Volume 7, Number 9 Recently published industry standard server technology papers Title URL “Drive technology overview, 2nd edition” technology brief http://h20000.www2.hp.com/bc/docs/support/SupportManual/c010714 96/c01071496.pdf "HP Integrated Lights-Out security, 6th edition" technology brief http://h20000.www2.hp.com/bc/docs/support/SupportManual/c002127 96/c00212796.pdf Industry-standard server technical papers can be found at www.hp.com/servers/technology.