mikey molfessis isolve business solutions wsv304
TRANSCRIPT
Enhanced Power Efficiency and Power Management Capabilities in Windows Server 2008 R2
Mikey MolfessisiSolve Business SolutionsWSV304
Agenda
Problems and motivationsWindows Server energy efficiency visionPower management in Windows Server 2008 R2 Windows Server Enhanced Power Management Additional Qualification logoCall to Action
Industry Trends and Requirements
Energy consumption and efficiency are major issuesEPA report estimates 1.5% of U.S. power is used by data centersCurrent trend estimates energy use to double every 5 years
Government agencies around the world are increasing their scrutiny on energy and environmental impact
EPA ENERGY STAR Specification for ServersEuropean Code of Conduct
Wasted Energy = Wasted MoneyOpportunity to reduce the total cost of ownership
Windows Server Energy Vision
Scalable NodeEnergy efficiency at the server levelServer energy consumption scales according to workload
Dynamic Data CenterEnergy efficiency at the data center levelCoordination across data center components to scale infrastructure and computing according to business needs
Standardized workloads and energy efficiency metrics are required to enable data driven optimization and to quantify the value proposition for
both the Scalable Node and the Dynamic Data Center
The Scalable Node – Problem
Today power efficiency does not scale in line with server utilization
Typical servers consume 50-70% of the maximum power when completely idle
Idle servers have low efficiency due to high idle levelsEfficiency rises with utilization
Tremendous opportunities exist for reducing energy needs
Reduce power when full performance is not requiredLeverage virtualization solutions to increase server utilizationPower down servers when they are not needed
The Scalable Node – Vision
Work with partners to provide best in class power efficiency by managing the system power usage to the needs of the workload, using Windows power policyAchieved through improvements to Windows power management
Build on existing infrastructure and extend Windows valueEnhancements to processor power managementFocus on runtime idle improvementsSupport for device performance states
The Dynamic Data Center – Problem
Addressing energy consumption in the data center requires a holistic approach spanning all infrastructure not just the computing nodesMany factors affect how a data center consumes energy
Hardware, workload, time of day/week/year, locality, etc.Data centers are generally configured for peak load (statically)
Tremendous opportunities for reducing waste and optimizing performance exist
Scaling and migrating workloads across groups of machinesCoordination with power and cooling systems
The Dynamic Data Center – Vision
Enable the management of aggregate servers in conjunction with data center infrastructureDeliver this through building platformand management infrastructure
Power metering and budgetingVirtualization and workload migrationStandards-based management technologiesCoordination between in-band and out-of-band management systems
Power Efficiency Comparision
Windows Server 2008 R2Power Management
Focus on improving idle operating efficiencyMany client power management features translate directly to server scenariosContinued focus on the biggest hitter Processor power management
Remote manageability of power policy (WMI)In-band power metering and budgeting supportAdditional qualification logo to indicate enhanced power management support
Improvements to Idle EfficiencyPower policy changes
Changes in default settings to reflect the latest hardware and power efficiency findingsIn-box power plans tuned for server
Intelligent Timer Tick Distribution (Tick Skipping)Extends processor sleep states by avoiding waking the CPU unnecessarily
Processor Core ParkingAchieves power savings by scaling the number of processor cores in active useOpportunistic in nature
Idle improvements extend to Hyper-V Significant reduction in platform interrupt activityEnables power savings and greater scalability for VMs
Remote Manageability via WMI
Windows Server 2008 R2 supports the configuration of power policy via Windows Management Infrastructure
Enables local and remote management via WMIAdheres to DMTF conventions for setting dataScriptable
Includes support for reading and writing of all power plan and setting dataActive power plan may be changed remotely
Power Budgeting Concepts
Hardware vendors are providing power budgeting capabilities in their server platformsMicrosoft advocates a collaborative model between the platform and OS for budgeting
Platform is responsible for guaranteeing that the server operates within the allocated budget (HW Failsafe)
Platform notifies the OS when under budget constraintsOS scales power usage according to workload and respects platform notifications
Power Metering And Budgeting
Windows Server 2008 R2 provides the ability to report power consumption and budgeting information
Consumption information reported by the platform to Windows via firmware interfaceNo additional drivers are required, only platform support
Power information is exposed via WMI and Performance Monitor
Power meter objects are populated in the “root\cimv2\power” namespaceAdheres to the DMTF Power Supply Profile v1.01
Power budget information is reported to the OSOptional support for setting the budget via WMI
demo Power Management with System Center Operations Manager
Coordinated Processor Clocking Control
Windows Server 2008 R2 introduces support for a new processor performance state interface
Joint development effort with HPEnables OS and platform coordination of processor power management
Platform is in direct control of t- and p-statesOS specifies processor performance requirements
Per-processor basis as a percentage of maximum frequencyPlatform is responsible for delivering requested performance
In some cases, like a power budget condition, the platform may deliver less than the requested amount
Interface is described via ACPIThis enables the OS and the platform to innovate and add value in their respective domains
Enhanced Power Management Logo
Windows Server 2008 R2 will include an optional Additional Qualification logo for “Enhanced Power Management” Indicates support for the following features:
Windows processor power management enabledFirmware support for power metering and budgeting
AQ hardware will take full advantage of the power management features in Windows Server 2008 R2 and compatible with the System Center Power Management Pack
Summary
Windows Server 2008 R2 delivers real energy savings for the data centerNew features deliver enhanced power efficiency and better manageability
Improvements to idle operating efficiencyManagement of power policy via WMI
Power metering support provides energy consumption information from within Windows
www.microsoft.com/teched
Sessions On-Demand & Community
http://microsoft.com/technet
Resources for IT Professionals
http://microsoft.com/msdn
Resources for Developers
www.microsoft.com/learningMicrosoft Certification and Training Resources
www.microsoft.com/learning
Microsoft Certification & Training Resources
Resources
Related Content
WhitepapersWindows Server 2008 Power Savings http://download.microsoft.com/download/4/5/9/459033a1-6ee2-45b3-ae76-a2dd1da3e81b/Windows_Server_2008_Power_Savings.docx
Recommendations for Power Budgeting with Windows Server http://www.microsoft.com/whdc/system/pnppwr/powermgmt/Svr_PowerBudget.mspx
Other Resources Windows Hardware Developer Central – Power Management http://www.microsoft.com/whdc/system/pnppwr/
Email: Server Power Feedback ([email protected])
Windows Server Resources
Learn More about Windows Server 2008 R2: www.microsoft.com/WindowsServer2008R2
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