HP 3rd User's Manual
Contents
1. Figure 3 compares the efficiency of the HP 750 W CS Platinum Plus power supply under these three scenarios As indicated by Curve A a single 750 watt power supply supporting the entire load of the server can achieve the highest efficiency when operating in the middle range of its capacity although redundancy is not provided For redundant 750 watt supplies operating in Load Balanced Mode the default mode the load is shared equally between the two supplies As shown by Curve B Load Balanced Mode results in a significant efficiency penalty over much of the server s operating range compared to a single power supply supporting the entire load When High Efficiency Mode is enabled for redundant supplies each power supply in the server is designated as either a primary or secondary supply and the entire server load is shifted to the primary power supply This allows the primary power supply to operate at higher efficiency points on the load curve while the secondary power supply operates in idle mode providing no output power and consuming very little energy typically two to four watts per supply The result as shown by Curve C is that High Efficiency Mode achieves efficiency levels that come close to those of a single supply system Figure 3 Efficiency comparison of single and redundant HP 750W CS Platinum Plus power supplies As indicated in Figure 3 High Efficiency Mode with 750 watt supplies is beneficial for loads up to approximately 452. Technology brief HP Common Slot power supply technology 3rd edition Table of contents Abstract 2 Introduction 2 HP Common Slot power supplies 2 Load Balanced and High Efficiency Modes 7 Right sizing the power supply 8 Reducing hardware cost 8 Avoiding trapped power capacity 8 HP Power Advisor 8 HP Power Discovery Services 10 Installation considerations with HP Common Slot power supplies 10 Conclusion 11 For more information 11 Click here to verify the latest version of this document Created September 2012 2 Abstract Energy directly consumed by data center equipment the resulting heat produced and the energy that it takes to provide cooling can account for a majority of overall operating costs in today s data centers making it a top concern for IT and facilities managers worldwide Energy efficiency is also a driver of overall data center utilization as inefficient systems cannot be deployed as densely due to available power per rack and requisite airflow reducing the expectations of longevity for the facility Utilized across ProLiant Integrity BladeSystem and even certain HP Storage platforms HP Common Slot power supplies help IT data centers to achieve optimum power efficiencies by right sizing the power output for each system Additionally HP Common Slot power supplies reduce administrative costs by improving power management and providing a common form factor that reduces operat
3. Note Most common load point Figure 2A Efficiency curves for HP CS Platinum Plus power supplies 86 0 88 0 90 0 92 0 94 0 96 0 98 0 0 200 400 600 800 1000 1200 Efficiency Power 460W Platinum Plus 750W Platinum Plus 1200W Platinum Plus Peak efficiencyrange for 460W supply Peak efficiencyrange for 750W supply Peak efficiencyrange for 1200W supply 6 Figure 2B Efficiency curves for HP CS Platinum power supplies Figure 2C Efficiency curves for HP CS 460W Gold 750W Gold and 1200W Silver power supplies 86 0 88 0 90 0 92 0 94 0 96 0 98 0 0 200 400 600 800 1000 1200 Efficiency Power 460W Platinum 750W Platinum 1200W Platinum Peak efficiencyrange for 460W supply Peak efficiencyrange for 750W supply Peak efficiencyrange for 1200W supply 86 0 88 0 90 0 92 0 94 0 96 0 98 0 0 200 400 600 800 1000 1200 Efficiency Power 460W Gold 750W Gold 1200W Silver Peak efficiencyrange for 460W supply Peak efficiencyrange for 750W supply Peak efficiencyrange for 1200W supply 7 Load Balanced and High Efficiency Modes An HP ProLiant server configured with the HP 460 watt 750 watt or 1200 watt CS power supply supports the following three scenarios A Operating with a single supply B Operating with redundant supplies in Load Balanced Mode C Operating with redundant supplies in High Efficiency Mode
4. 0 watts In general Load Balanced Mode offers better efficiency for loads requiring more than 60 of the primary power supply capacity High Efficiency Mode is enabled through the server s ROM Based Setup Utility RBSU under System options Redundancy options When enabling High Efficiency Mode the user can specify that the odd or even power supplies will be designated manually or automatically as secondary supplies This flexibility allows users to balance the load across a rack manually or automatically 8 Right sizing the power supply The availability of HP CS power supplies in multiple capacities allows IT technicians to match the power supply capacity to the actual load of a server configuration that is to select the right size power supply In addition to increased efficiency right sizing the power supply also offers two immediate benefits reducing hardware cost and avoiding trapped power capacity Reducing hardware cost Smaller capacity supplies cost less to purchase than larger capacity supplies Nevertheless IT infrastructure designers often configure servers with larger than necessary supplies to allow for future expansion or upgrades When purchasing a significant number of servers the savings from ordering only the capacities actually required can be significant Avoiding trapped power capacity The amount of equipment that can be deployed in a given location such as a rack is in direct relation to the size of the
5. 48 VDC Power Supply 48 VDC n a Note 1 All HP CS power supplies designed for AC input are 80 PLUS certified To earn 80 PLUS certification a power supply must be proven through independent testing to be 80 or greater energy efficient when delivering 20 50 and 100 of the rated load capacity with a true power factor of 0 9 or greater Power supply ratings include 80 PLUS Bronze 80 PLUS Silver 80 PLUS Gold and 80 PLUS Platinum certification HP Common Slot power supplies share a common electrical and physical design that allows for installation into server and storage platforms with a Common Slot power supply bay Figure 1 HP Common Slot power supplies are compatible with over 90 of HP ProLiant G6 and G7 Gen 8 servers as well as with select HP Integrity and HP storage systems 1 DC DC power supplies such as the HP 1200 W CS 48 VDC power supply do not receive 80 PLUS certification 4 Figure 1 HP platforms that support HP Common Slot power supplies over several generations of products The ability to use HP CS power supplies across multiple platforms simplifies maintenance for an IT department Using a common power supply form factor requires fewer maintenance spares and decreases inventory costs and facility space requirements Common Slot power supplies are qualified with specific HP products based on actual power output requirements These qualifications are defined in the section Installation consideration with Common Slot
6. A power supply mismatch or an unsupported power supply will result in an error indication as described in Table 4 Table 4 HP CS power supply compatibility with HP PDS Condition System insight display indication Description Power supply mismatch detected during boot Power supply LED all supplies blinking amber BIOS ROM will power up power supply 1 and then halt Power supply mismatch detected during runtime Power supply LED added supply only blinking amber iLO will detect the mismatch and not allow the added power supply to turn on Unsupported power supply detected during boot Power supply LED added supply only blinking amber BIOS ROM will detect an unsupported power supply installation BIOS ROM will halt at POST with a failure message and will light the appropriate LED The LED will reset when the unsupported supply has been removed and system is restarted HP CS power supplies are hot pluggable hot swappable on ProLiant servers under the following conditions The server must already be configured with redundant power supplies The removed and replacement power supplies must be of the same type same part number For all other situations the ProLiant server should be powered down before a power supply is removed or installed Conclusion The common slot power supply bay allows over 90 of the ProLiant server line to use 80 PLUS certified power supplies By using IT equipment that suppor
7. P s new high efficiency Platinum Plus Common Slot power supplies energy savings at the processing level server storage and networking equipment can result in the greatest reduction in power requirements making the power supply a key element in achieving energy efficient IT operations HP Common Slot power supplies HP Common Slot CS power supplies are designed to allow IT administrators to implement a Converged Infrastructure using energy efficient inter changeable and manageable components HP CS power supplies are available in three power ratings 460 watts 750 watts and 1200 watts Table 1 allowing you to right size a power supply to a specific server or storage configuration HP s latest set of CS power options Platinum Plus meet 80 PLUS requirements for Platinum certification 3 Table 1 HP CS power supplies Name Input 80 PLUS Certification HP 460W CS Gold Power Supply 100 240 VAC Gold HP 460W CS Platinum Power Supply 100 240 VAC Platinum HP 460W CS Platinum Plus Power Supply 100 240 VAC Platinum HP 750W CS Gold Power Supply 100 240 VAC Gold HP 750W CS Platinum Power Supply 100 240 VAC Platinum HP 750W CS Platinum Plus Power Supply 100 240 VAC Platinum HP 750W CS 48VDC Power Supply 48VDC n a1 HP 1200W CS Silver Power Supply 100 240 VAC Silver HP 1200W CS Platinum Power Supply 100 240 VAC Platinum HP 1200W CS Platinum Plus Power Supply 100 240 VAC Platinum HP 1200W CS
8. circuit that is provisioned Often more equipment can be deployed than nominally available through the use of power capping but that can also result in performance capping when used aggressively Additionally depending on local regulations large data centers may be required by law to size their power circuit that is their availability of power to the location based on the servers maximum power supply output rating or regulatory plate rating This method of provisioning can quickly use up the data center power budget Most servers even fully configured and operating at 100 utilization will typically require only 70 of the power supply capacity Even if only 70 of power at the most will ever be used the data center will not be able to expand because the power circuit is trapped based on the required method of provisioning When using power supplies that more closely match the required power the trapped capacity can be reclaimed to power more equipment while staying in the same power budget HP Power Advisor The HP Power Advisor utility removes much of the guesswork from estimating the power requirements of a particular HP server configuration Developed from actual measurement data collected from HP servers running under heavy load the Power Advisor allows the IT facilities technician to build a virtual server system and accurately pre calculate the power needs of the server configuration without having to assemble and run the hardware F
9. igure 4 shows a typical screen from a Power Advisor calculation for a ProLiant DL380p Gen8 server The Power Advisor allows the user to select precise configuration parameters such as processor type memory size and drives As the configuration is being made the Power Advisor continuously calculates the Current Wattage and Circuit Sizing requirements for the configuration A Utilization slider control allows the user to set the projected degree of server utilization Note The Power Advisor allows users to avoid initial configuration mistakes such as using an under rated power supply The Power Advisor should also be consulted before reconfiguring a server The HP Power Advisor can be downloaded from the following URL http www hp com go hppoweradvisor As shown in Figure 4A if a redundant supply has not been added the Power Advisor generates a message suggesting a power supply addition If the server configuration exceeds the capacity of the power supply an error message is displayed Figure 4B 9 Figure 4A Configuration display with redundancy reminder message Figure 4B Configuration display showing message when power supply capacities have been exceeded The HP Power Advisor allows IT architects to choose the right size power supply for a given server configuration This saves money in the initial acquisition by allowing the purchase of less expensive smaller capacity supplies This efficient operation results in additi
10. ional costs for spares when deploying a mix of HP Server and Storage solutions This technology brief describes how HP Common Slot power supplies help to increase compute capacity and reduce operating costs by improving power efficiency in the data center Introduction The demand for computing storage and networking capacity has been continuously increasing For many organizations this has created an IT resource sprawl that can be costly in terms of energy consumption and management With Converged Infrastructure HP is transforming IT technology silos into interoperable shared pools of resources A key component of this is the next generation HP ProLiant servers with the ProActive Insight architecture and its technologies for automated energy optimization These technologies reduce the power and airflow needed to operate ProLiant Gen8 servers enabling you to reclaim limited space power and cooling resources for needed workloads Additionally they reduce the need for error prone manual processes associated with asset tracking checking and documenting with regards to power and rack configurations The automated energy optimization capabilities in the new ProLiant family are enabled by HP 3D Sea of Sensor technologies With embedded intelligence across three dimensions sense of location power utilization and thermal demand you gain a unique level of visibility and control over the energy efficiency of your data center With the addition of H
11. ment For more information on HP PDS refer to the website referenced in the For More Information section of this document Installation considerations with HP Common Slot power supplies Although the common slot power supply design is shared by a number of platforms enabling cross platform power supply installation HP has qualified select ProLiant Integrity and HP storage products to work with specific HP CS power supplies An interactive online compatibility guide for HP products is referenced in the For More Information section of this document Table 3 shows which HP CS power supplies support HP Power Discovery Services All HP CS Platinum and Platinum Plus power supplies support HP PDS functionality Table 3 HP CS Power supply supporting HP Power Discovery Services Power supply type HP ProLiant server 460W CS Platinum 460W CS Platinum Plus ProLiant G6 G7 DL160 DL180 DL360 DL380 DL385 ProLiant Gen8 DL160 DL320e DL360e DL360p DL380e DL380p DL385p ML350e ML350p 750W CS Platinum 750W CS Platinum Plus ProLiant G6 G7 DL180 DL360 DL380 DL385 ProLiant Gen8 DL160 DL360e DL360p DL380e DL380p DL385p ML350e ML350p 1200W CS Platinum 1200W CS Platinum Plus ProLiant G7 DL380 DL385 DL580 DL585 DL980 ProLiant Gen8 DL360e DL360p DL380e DL380p DL385p DL560p ML350p 11 HP ProLiant servers that support redundant power supplies only allow installation of same type supplies
12. onal energy savings 10 HP Power Discovery Services As a feature of Automated Energy Optimization HP Power Discovery Services PDS formerly HP Intelligent Power Discovery is the first technology to create an automated energy aware network between IT systems and facilities HP PDS allows users to reclaim millions of dollars in wasted power capacity and downtime across data centers HP PDS combines the HP Intelligent Power Distribution Unit iPDU HP CS Platinum or Platinum Plus power supplies and HP Insight Control software to automatically track new server installations and provide higher precision control and automation to power distribution HP PDS automatically discovers newly deployed HP servers maps them to the power source verifies power redundancy and ensures all power sources are connected correctly When configured with HP CS Platinum or Platinum Plus power supplies which feature an embedded serial communication technology HP servers can automatically provide identification information such as server name UUID number and IP address to the Intelligent PDU and to HP Insight Control power management software This reduces the amount of time needed to configure the power distribution software and hardware Additionally HP PDS intuitively detects redundant power supplies to ensure they are running on different PDUs This helps reduce unscheduled down time and the possibility of human error the biggest challenges of data center manage
13. power supplies Table 2 and Figures 2A 2B and 2C compares and illustrates the efficiency of HP Platinum Plus HP Platinum and HP Gold CS power supplies as tested internally with the internal fans as part of the efficiency calculation The 80 Plus certification agency data reflected in Table 2 does not include power consumed by the fans as part of the efficiency calculation ProLiant DL100 G6 series amp HP P4000 G2 SAN ProLiant DL300 G6 G7 Gen8 series amp HP x3800 Network Storage ProLiant DL580 and DL585 G7 servers ProLiant c3000 enclosure ProLiant ML300 100 G6 series ML370 ML350 ML330 ML150 ProLiant SL6000 and S6500 series ProLiant DL785 and DL980 servers HP Common Slot power supply ProLiant DL1000 and DL2000 series Integrity rx2800 i2 series 5 Table 2 Operating efficiencies of 80 PLUS certified HP CS power supplies Percent of efficiency Power supply type 10 load 20 load 50 load 100 load HP 460W CS Gold 85 02 90 39 92 43 91 57 HP 460W CS Platinum 86 50 91 20 94 37 93 91 HP 460W CS Platinum Plus 88 58 92 05 94 42 93 07 HP 750W CS Gold 87 58 90 58 92 90 91 54 HP 750W CS Platinum 88 85 92 04 94 55 93 67 HP 750W CS Platinum Plus 89 37 92 47 94 69 93 41 HP 1200W CS Silver 78 43 86 84 91 75 91 19 HP 1200W CS Platinum 88 74 92 53 94 34 93 21 HP 1200W CS Platinum Plus 90 37 93 24 94 44 91 92
14. ssions contained herein TC1208930 Created in September 2012
15. ts common slot power supplies IT and facilities administrators can reduce spares inventory costs and space requirements while reducing energy consumption costs and reclaiming data center power capacity For more information Visit the URLs listed below if you need additional information Resource description Web address HP Power Supplies http h18004 www1 hp com products servers rackandpower pow ersupplies index html HP ProLiant servers www hp com go proliant HP ProLiant Energy Efficient Solutions http h71028 www7 hp com enterprise cache 600307 0 0 0 121 html Automated Energy Optimization http h20195 www2 hp com V2 GetPDF aspx 4AA3 9650ENW pdf HP Power Advisor utility www hp com go hppoweradvisor 80 PLUS program www 80plus org HP interactive online compatibility guide www hpproliantoptions com index aspx HP Intelligent Power Discovery Power Discovery Services www hp com go ipd 12 Get connected hp com go getconnected Current HP driver support and security alerts delivered directly to your desktop Copyright 2012 Hewlett Packard Development Company L P The information contained herein is subject to change without notice The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omi
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