SustainableComputing

Making your computing activities sustainableMaking you computing budget go further

Did you know … That power makes up >½ a computing budget? That 90% of PCs have power management

disabled or crippled? That PCs waste around ½ the energy they use? That PCs lose around ⅓ their power as heat? That a PC can use over 800kWhr/yr (~$300pa) That manufacturing a PC consumes double its

weight in fossil fuels? That peripherals (printers, routers. switches,

etc) may be just as bad? That computing creates around 2% of global

CO2 emissions? That’s the same CO2 as the aviation industry!

Aims of Sustainable ComputingMinimise costsOperatingCapitalConsumables

Minimise wasteMaximiseSystem lifeEssential performance, flexibility, …

Minimise environmental footprint

Optimise PC Power Management

Save up to 80% of PC power use Up to 60% network-wide

Minimal cost to implementCan be centrally managedRequires analysis of usageFor monitors, as well

Enable hibernation

Maximises power savingsEquivalent to turning PC offBut much faster to restart

Turn hardware off

Can be scheduledRestart can be

scheduled, tooTurn off at wall for

maximum savings Includes monitor,

printers, etc

Does Power-cycling harm PCs?

Urban mythTo harm a PCPower cycle >40,000 timesOnce per working hour for

20 yearsThe less a PC is on, the

longer it will lastThe less power it will waste

Optimise peripheral sleep mode

Printers, routers, access points,monitors, etcEnable sleep modeCustomise time-to-sleep

Reduce power-on times

Schedule start-up If manual start-up impractical

Install power timersDevices without power timers

Screen-savers …

Don’t save screensConsume energyCPUMonitorGraphics card

Turn monitor offAutomate monitor stand-by

Minimise paper usage

Use duplex printingSet as printer default

Reuse single-sided printedpaperAdd a paper tray

Recycling

Use recycledPaperPrinter cartridges

Buy consumables in recycled/recyclable packagingRecycle waste paperOr compost

Recycle printer cartridges

Do you have multiple servers?

Can you virtualise?E.g., Windows on Linux

Can you consolidate?e.g., email/directory/terminal/SQL server

Replaces several servers with one

Do you have many users?

Can you virtualise?Replace full PCs with thin clientsContinue to use old hardware

Can you “right-size” PC performance?

“Right-sizing” computers

Don’t over-specifyCheap hardware obsoletes quicklyMaximise life-cycle performance &

durabilityMinimise unused

performancePotentially reduce

purchase costs

Energy-efficient computer design

Select components for energy efficiency &power management CPU Motherboard Hard disk Graphics card Power supply Display Case (cooling)

~$30/PC, ~$45/server

Optimise network design

Higher network speeds high power 100Mb Gigabit: up to 4W/connection

Are higher speeds required everywhere?

Can unused network ports be disabled?

Don’t use non-essential WiFi 55Mbps up to 20W/client

Higher networkoverheads 55Mbps nominal ≈18Mbps actual (best)

Smart network technologies

Link-down > power-downCable length power settingSmart-fan & fanless designsWake-on-LanScheduled WiFi, PoEHibernationWiFi output power managementNAS hard disk power-downUp to 80% power saving

Device consolidation

Printer/fax/copier/scannerCheck stand-by power

consumption less thanseparate fax machine

Printers Laser v/s inkjet Laser consumables cheaper, more sustainable

(per page) Inkjet power consumption lower Most lasers replace drum

plus tonerOptimise device selection Peak power consumption Standby/sleep mode

consumption & configurability TCO (Total Cost of Ownership)

Optimise usage practices

Get off the upgrade cycleUse PCs for the purpose they were

bought forReduce hard copy

eWasteMinimiseMaximise life of hardware

ReuseReassign old hardware Internally & externally

Securely erase confidential/ personal databefore disposal

RecycleRecycle consumablesRecycle ewaste

The BenefitsReduce ITPower consumption by up to 85% IT hardware purchase costsMaintenance & support costsConsumables expensesWaste costsSoftware costs

Extend hardware life

SustainableComputing

info@EarthCareTech.com.au

www. EarthCareTech.com.au