Computer Power Management for Enterprises Mike Walker Beacon Consultants

Computer Power Management for Enterprises Mike Walker, Beacon Consultants A Practical Guide for Saving up to $100 per PC Annually Outline 1. History: Estimated Energy Use of Computers and Monitors (1998 – 2006) 2. ENERGY STAR: Your Solution for Minimizing Computer Electricity Use 3. Computer Power Management 4. VISTA May Make CPM Easier to Implement 5. How to Move Forward in Your Organization 2 Estimated Energy Use of Computers and Monitors (1998 – 2006) Computer Wattage Now Exceeds Monitor Power 80 Average Power (Watts) 70 60 50 40 30 20 10 CPU Monitor Stock 1998 2000 2002 2004 2006 4 …And the Stock is Large 120,000 Stock (thousands) 100,000 80,000 60,000 40,000 20,000 98 99 00 01 02 03 04 05 20 19 19 20 20 20 20 20 20 06 Desktop Computer Monitors 5 PM Utilization: High for Monitors, Low for Computers 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 1998 2000 2002 2004 2006 6 Monitors CPUs Energy Use of Monitors 45,000,000 40,000,000 35,000,000 30,000,000 25,000,000 20,000,000 15,000,000 10,000,000 5,000,000 0 1998 Annual Energy Use (MWh) Actual MPM 100% MPM 1999 2000 2001 2002 2003 2004 2005 2006 7 Energy Use of Computers 60,000,000 Annual Energy Use (MWh) 50,000,000 40,000,000 30,000,000 20,000,000 10,000,000 Estimated 25% CPM 50% CPM 75% CPM 100% CPM 0 1998 1999 2000 2001 2002 2003 2004 2005 2006 8 What Would 50% CPM Accomplish? • Electricity to light 8 million homes • Reduce 6 million tons of CO2 • Remove 1 million cars from the road 9 ENERGY STAR: Your Solution for Minimizing Computer Electricity Use 10 ENERGY STAR is Your Tool for Reducing Computer Power Use zzz z zz… zz Computer Power Management What is Power Management? • Monitor power management (MPM) places active monitors into a low power sleep mode after a period of inactivity • System standby and hibernate features place the computer itself (CPU, hard drive, etc.) into a low power sleep mode 13 What is Power Management? • Built into Windows 95,98, ME, 2000, XP and now Vista • Settings simply need to be activated 14 Why Power Management? • Use less electricity – Half of energy used to power PCs is wasted • Reduce peak load demand charges – Some utilities charge up to $200 per kW per year, many charge $150/year – Roughly every 180 PCs or monitors power managed saves 1 kW of peak demand • Reducing cooling loads – Typical office bldg with internal heat load and moderately efficient system saves an additional 15% – In southern climates savings can be 30% or more 15 Computer Power Management (CPM) • Original goal of CPM: maximize laptop battery life • Increasingly deployed to save electricity on desktops (on AC power) -- can save up to $50 per computer annually • Modern CPM shuts down critical system components -- CPU, PCI bus, fans, et al; • Most PCs currently use S3/S4 for sleep, and S5 is sometimes used to save power Flavors of CPM • Sleep(System Standby S3) • saves 40-80W • wakes up in seconds • • Hard disk spin down • saves very little Hibernate (S4) • same energy savings as S3 • wakes up in 20+ seconds • saves work in the event of power loss • Shutoff (S5) • same energy savings as S3 • wakes up in 20+ seconds • saves work in the event of power loss 16 CPM’s ROI • CPM activation in networked environments is not as straightforward as MPM – Care must be taken to ensure that sleeping computers do not interfere with the distribution of administrative software updates – Older software applications and some peripheral devices may not conform to the latest ACPI standards, and should be tested for compatibility with CPM • Still, given the savings potential, CPM offers a tremendous ROI – An org with 6000 PCs can expect to reap 3 year savings in excess of $1 million, with costs typically in the low thousands 17 CPM: Where it works best • Pentium IV (or newer) processors • Windows 2000 or XP • Regular administrative software updates are “pulled” by clients from the network, or Wake on LAN features are available to wake up client machines to receive administrative updates – Energy savings (up to $50 per PC annually) are compelling enough that organizations are adopting CPM 18 Various Approaches to CPM are Working Site (PCs) Army IMCEN (VA) (10,000) GE (75,000) North Thurston Public Schools (4,000) Bemis Company, Inc. (5,000) BC Hydro (2,000) Vision Service Plan (2,000) Spring Branch ISD (7,000) Computer Associates Unicenter Asset Management (to distribute the necessary registry key changes) Energy Star EZ GPO Desktop Standard’s Policy Maker Verdiem’s EZ Surveyor 1 E’s Nightwatchman Manually Set all PCs to Sleep User Initiated Wakeup Centrally managed CPM w/: Wake up technique: User Initiated Wakeup Scheduled Wakeup from S3 Scheduled Wakeup (from S5) WOL from S5 User Initiated Wakeup 19 Software Tools • • PolicyMaker – – – – – Centrally control MPM and CPM on PCs using group policies www.desktopstandard.com Measures energy consumed by network Manages power settings of PCs and monitors www.verdiem.com Shuts down computers and monitors when not in use www.1e.com/SoftwareProducts/NightWatchman/Index.aspx Group policy object solution for MPM and CPM Download for free at www.energystar.gov/powermanagement Centrally control MPM and CPM on Macs using built in policy manager www.apple.com/server/macosx Centrally control MPM and CPM on Macs www.apple.com/pr/library/2004/jun/21ard.html 20 Surveyor Network Energy Manager • • • • NightWatchmanTM – – – – – – – – EZ GPO Apple’s Mac OS X 10.4 (Tiger) Server Apple’s Remote Desktop 2 VISTA May Make CPM Easier to Implement and Use Windows Vista • Microsoft is extending Windows power management features in Vista. Anticipated improvements include… – Smarter “hybrid sleep” will be the default when the power button is turned off – Vista includes tools called Group Policy Objects that IT administrators can use to easily control CPM. These did not exist in XP. EPA’s GPO tool was a way to get around this limitation. – Vista will be shipped with MPM and CPM defaulted – Software applications will no longer be allowed to veto sleep 22 How to Move Forward in Your Organization Suggested Tasks 1. Review behaviors • • • • Shut off at night Sleep enabled for monitors and computers Energy managers Senior staff 2. Calculate savings 3. Contact EPA for help if needed 4. Engage your IT department • • Central management of CPM Need to access computers at night 24 How to Centrally Manage CPM • Use in house solutions • 3rd party software – – – – EPA’s EZ GPO tool activates system standby (S3/S4) Vista supports central management of CPM related settings Desktop Standard’s PolicyMaker (also MS) activates S3/S4 Verdiem’s PC Surveyor manages PM features and implements time-based power profiles – 1E’s NightWatchman remotely turns off computers (S5); requires enabled WOL 25 Access to Sleeping Computers • OBSTACLE: Many IT managers perceive need for continuous availability • SOLUTION: – Sites can wait for maintenance events (patching, backup, etc) to occur on wake up (GE does this) – Wake-on-LAN (WOL) can be implemented – Scheduled wake ups can provide needed availability 26 Wake-on-LAN: What is it? • WOL is a means to wake networked machines • Originally designed to allow for remote administration of client PCs • NIC signals a PME to wake the machine when it receives network traffic – The NIC can be configured to look for specific types of network traffic (ie “The Magic Packet”) – Various configuration and network topology is required to make this work 27 Technical Assistance • We help develop energy savings estimates • We help IT administrators quickly identify the easiest, lowest risk paths to power management • A brief conference call with your IT administrator(s) is usually all it takes to get started 28 Summary • Implementing MPM and CPM can save $50 per PC annually • Many organizations are already saving – IT managers are overcoming obstacles to CPM – Growing number of large-scale implementations • We can help you develop your implementation options 29 Contact Information • Additional information at: www.energystar.gov/powermanagement • Contacts: – Mike Walker, Beacon Consultants (EPA Technical Support Contractor): 617-921-8445, mwalker@beaconconsultants.com – Steve Ryan, US EPA Energy Star Program Manager: 202-564-1254, Ryan.Steven@epamail.epa.gov 30