HP ProLiant DL388e HP Power Regulator for ProLiant servers
HP ProLiant DL388e Manual
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- HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 1
for ProLiant servers technology brief, 4th edition Abstract...2 Introduction...2 Processor P-states...2 Power Regulator technology...3 Power Regulator modes ...3 HP Static High Performance mode...4 HP Static Low Power mode...4 HP Dynamic Power Savings mode...4 Configuring Ultra Low Power state - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 2
used, and its relationship to other power management tools. It is assumed that the reader is familiar with ProLiant servers and the Integrated Lights-Out (iLO) management processor. Introduction Enterprise server systems place large demands on facility power and cooling resources. Expanding these - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 3
(RBSU), Integrated Lights-Out (iLO) browser, or the iLO command line. Multi-server setup is supported using the iLO scripting interface with batch processes, the Rapid Deployment Pack, or HP Insight Power Manager. Power Regulator modes System administrators can configure Power Regulator for any of - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 4
Because Power Regulator runs from system firmware, changes between HP modes take effect immediately. A system reboot is required when changing into or out of OS Control mode. Not all Power Regulator modes are supported on all ProLiant servers and processor models. Beginning with G5 servers, however, - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 5
the OS-based power management feature. If the operating system does not support dynamic power management, or if the feature has not been configured through the operating system, the processor will always run in its highest power and performance state. NOTE: Some earlier ProLiant servers refer to - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 6
have performed extensive tests to characterize performance on systems operating in different Power Regulator modes. As an example, Figures 2 and 3 display the power and performance results for both an HP ProLiant DL380 G5 server and an HP ProLiant DL385 G5 under different levels of application load - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 7
mode vs. Static High Performance mode on a DL385 G5 server configured with two AMD 2356 2.3 GHz processors Power Savings in Percent Perf Delta (Iterations/s) DL385 G5 Power Savings and Performance Impact Ultra Static Low vs. Static High % Load 0 10 20 30 40 50 60 70 80 90 100 30.00% 0.00% 25 - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 8
Savings mode vs. Static High Performance mode on a DL385 G5 server configured with two Quad-core AMD Opteron 2356 2.3 GHz processors Power Savings (Watts) DL385 G5 Power Savings and Performance Impact Dynamic vs. Static High % Load 0 10 20 30 40 50 60 70 80 90 100 0.2 0.00% 0.18 -1.00% Perf - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 9
comparison of Static High Performance vs. Static Low Power modes running a memory bound application on ProLiant DL380 server Power Savings (Percent) Perf Delta (Percent) DL380 G5 Power Savings and Performance Impact Static Low vs. Static High Memory bound application 10.00% 9.00% 8.00% 7.00% 6.00 - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 10
used to manage HP Power Regulator settings. Insight Power Manager Insight Power Manager (IPM) is a ProLiant Essentials product that is part of HP Systems Insight Manager. The IPM product provides graphing and historical analysis of key power and thermal data for supported ProLiant servers. IPM can - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 11
data center temperatures in different parts of the data center or the temperature change for servers in a rack. Insight Power Manager also supports changing the Power Regulator mode for one to many ProLiant servers. System Administrators can make Power Regulator changes interactively through the - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 12
Integrated Lights-Out 2 (iLO 2) Both the iLO and iLO2 management processors can be used to control Power Regulator. The iLO reporting and management tools are limited to individual server management. Management Power Regulator can be managed using the iLO user interface. Power Regulator features are - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 13
as database, Exchange, file and print, web server, and OLTP. Consider the effect of Power Regulator on an HP ProLiant DL385 G5 server running a database with an average processor load of 50 percent. The application involved a mixture of cache, memory, arithmetic, and floating point activities. The - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 14
275 250 225 200 175 0 10 20 30 40 50 60 70 80 90 100 Processor Utilization (%) Static High Dynamic Static Low Table 3. Calculated annual power cost savings for an HP ProLiant DL385 G5 server running a database with an average processor load of 50 percent Parameter (at 50% load reduction - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 15
performance in cluster environments. Figure 10 indicates the difference in system power consumption for Static High Performance, Dynamic Power Savings, and Static Low Power modes of Power Regulator over varying loads. The same server configuration used in the previous test was used to gather this - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 16
broader solution set than OS-based power management. Compatibility with other HP management products such as HP Integrated Lights-Out (iLO), Integrated Lights-Out 2 (iLO 2) and Insight Power Manager (IPM) makes the HP Power Regulator an integral part of a complete enterprise management solution. 16 - HP ProLiant DL388e | HP Power Regulator for ProLiant servers - Page 17
For more information For more information visit the Power Regulator website at http://www.hp.com/servers/powerregulator. Call to action Send comments about this paper to [email protected]. © 2007, 2008 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change
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Power Regulator for ProLiant servers
technology brief, 4th edition
Abstract
..............................................................................................................................................
2
Introduction
.........................................................................................................................................
2
Processor P-states
.................................................................................................................................
2
Power Regulator technology
..................................................................................................................
3
Power Regulator modes
....................................................................................................................
3
HP Static High Performance mode
......................................................................................................
4
HP Static Low Power mode
................................................................................................................
4
HP Dynamic Power Savings mode
......................................................................................................
4
Configuring Ultra Low Power state
.....................................................................................................
4
OS Control mode
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4
Power Regulator and Dynamic Power Savings
.........................................................................................
5
Measuring CPU utilization
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5
Processor granularity
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5
Power consumption and system performance
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6
Power management and reporting
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10
Insight Power Manager
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10
Integrated Lights-Out (iLO) and Integrated Lights-Out 2 (iLO 2)
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12
Management
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12
Reporting
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12
Typical uses for Power Regulator
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13
Reducing power and cooling cost
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13
Increasing server density and performance per watt
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15
Ensuring uptime
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15
Summary
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16
For more information
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17
Call to action
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17