HP ProLiant DL185 Dynamic Power Capping TCO and Best Practices White Paper (EM
HP ProLiant DL185 - G5 Server Manual
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- HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 1
Setting Dynamic Power Caps for rack-mount servers 8 Setting Dynamic Power Cap with HP BladeSystem infrastructure 10 Conclusion...12 Appendix: TCO Test Configurations and Supported Servers 13 Test Configuration 1-HP ProLiant DL380 G5 Server 13 Test Configuration 2-HP ProLiant BL460c G1 Server 13 - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 2
Power Capping. Delivered only with HP ProLiant and HP BladeSystem, Dynamic Power Capping helps customers reclaim trapped power capacity by safely limiting peak power for a 1 megawatt of power and cooling capacity.1 The requirement to provide continuous access to IT services with almost no downtime, - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 3
to deliver IT services. Also, starting in mid-December, 2008, HP will deliver Dynamic Power Capping, a solution that allows systems administrators to reclaim trapped power and cooling capacity by safely limiting the amount of power consumed by one or more ProLiant servers or HP BladeSystem c7000 - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 4
power capacity (per faceplate) Allocated power Allocated power capacity (per power calculator) reclaimed Hard cap of aggregate power with Dynamic Power Capping Actual aggregate power usage over time Time (hrs) At the Rack Level Dynamic Power Capping operates within each HP ProLiant server. In an HP - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 5
budgeting power via three methods: power supply faceplate, HP Power Calculator or HP BladeSystem Sizer, and Dynamic Power Capping. Comparisons were run using the three power budgeting methods for the ProLiant DL 380 G5 server, ProLiant BL460c G1 server, and ProLiant BL460c G5 server. The difference - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 6
cost to drop from $30,714 per server to $9,348 per server, a decrease of 69%. Table 1. HP ProLiant DL 380 G5 Power and Costs Projections Faceplate Power Calculator Server Power Maximum Number of Servers in Circuit Power Provisioning Cost Per Server @ $25k per kW 1,193 W 7 $29,825 435 - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 7
438 per server to $7,679 per server, a decrease of 39%. For the ProLiant BL460c G5 server, Dynamic Power Capping causes the per server power infrastructure cost to drop from $13,438 per server to $6,719 per server, a decrease of 49%. Table 2. HP ProLiant BL460c G1 Server Power and Costs Projections - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 8
describes the Dynamic Power Capping configuration process for rack-mount servers using the ProLiant DL380 G5 server as an example. The second portion of this section described the same process for HP BladeSystem infrastructure using the ProLiant BL 460c G1 and G5 servers and the HP BladeSystem c7000 - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 9
Dynamic Power Caps should always be done in conjunction with your facilities department. • First, download and apply the following updates to your HP ProLiant server (see Appendix for list of supported servers): Table 4. Component Requirement for Rack-Mount Servers Required Component ROM BIOS iLO - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 10
HP ProLiant server (see Appendix for list of supported servers): Table 6. Component Requirement for BladeSytem Servers Required Component ROM BIOS the HP BladeSystem Sizer to calculate how many servers will fit in each enclosure, using the given power budget. For the BL460c G1 configuration used - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 11
comparison, we were able to fit 14 BL460c G1 servers in each enclosure for a total of 28 servers for the 8.6 kW circuit. . • Finally, continue to observe power usage for each c7000 enclosure using HP Insight Control Environment. If the Dynamic Power Cap for the enclosure is invoked too frequently - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 12
the life of existing data center facilities. HP Insight Control Environment helps IT and facilities administrators accurately measure power consumption on one or more ProLiant servers or BladeSystem c7000 enclosures. With the addition of Dynamic Power Capping to Insight Control Environment, it is - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 13
HP ProLiant BL460c G1 Server 16 HP ProLiant BL460c G1 Servers 2 Intel® Xeon® Processor L5450 4 4GB PC2-5300 DDR2 Fully Buffered Low-Power DIMMs 2 Hot Plug SFF SAS 10K 72GB Hard Drives in a RAID 1 Configuration ROM Revision: I15 iLO 1 HP BladeSystem c7000 Enclosure 10 Fans (Rev D, 48v) 6 Power Supply - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 14
HP ProLiant BL460c G5 Servers 2 Intel® Xeon® Processor L5430 4 4GB PC2-5300 DDR2 Fully Buffered Low-Power DIMMs 2 Hot Plug SFF SAS 10K 72GB Hard Drives in a RAID 1 Configuration ROM Revision: I23 9/29/08 iLO Revision: v1.70 pass 11 1 HP BladeSystem c7000 Enclosure 10 Fans (Rev F, 12v) 4 Power Supply - HP ProLiant DL185 | Dynamic Power Capping TCO and Best Practices White Paper (EM - Page 15
BladeSystem c7000 Enclosures Tech Brief Technology for remote management of power distribution Web address http://h20000.www2.hp.com/bc/docs/support/SupportManu al/c01543629/c01543629.pdf http://h20000.www2.hp.com/bc/docs/support/SupportManu al/c01503903/c01503903.pdf Feedback Send comments about
Dynamic Power Capping TCO and Best
Practices White Paper
Executive Summary
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Introduction
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Poor Power Planning Results in Trapped Power Capacity
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Thermal Logic and Dynamic Power Capping Reclaim Trapped Power Capacity
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At the Rack Level
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At Blade Enclosure Level
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The results of the data-gathering exercise appear in the following section
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Case 1.
HP ProLiant DL380 G5 Server
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Case 2.
HP ProLiant BL460c G1 and G5 Servers
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Best Practices for Implementing Dynamic Power Capping
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Setting Dynamic Power Caps for rack-mount servers
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Setting Dynamic Power Cap with HP BladeSystem infrastructure
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Conclusion
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Appendix:
TCO Test Configurations and Supported Servers
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Test Configuration 1—HP ProLiant DL380 G5 Server
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Test Configuration 2—HP ProLiant BL460c G1 Server
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Test Configuration 3—HP ProLiant BL460c G5 Server
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Supported Servers and Enclosures
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For more information
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Feedback
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