Compaq DL360 Critical factors in intra-rack power distribution planning for hi
Compaq DL360 - ProLiant - Photon Manual
UPC - 720591252670
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- Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 1
types...4 Power consumption ...5 Space issues...6 Segmented power distribution ...7 Redundant power distribution ...8 Power circuit monitoring ...9 Other considerations ...9 Sample power distribution solutions ...10 Rack configurations for distributing power to HP ProLiant c-Class servers 10 Rack - Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 2
needs for a rack of high-density servers requires considering the following factors: • Voltage level provided by the facility • Type of power connectors to be used • Estimated power consumption • Power redundancy • System expansion • Serviceability Failure to account for these factors can - Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 3
depending on which level is supplied to the rack. Most HP server equipment features auto-sensing input circuitry that automatically detects and adjusts to the input voltage range. High-line voltage is the favored choice for electrical equipment requiring high power consumption. As determined by Ohm - Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 4
more common in other regions. For more information on AC power connector types refer to the HP technology brief "Selecting power cords and jumper cables for use with HP ProLiant servers" at the following URL: http://h18004.www1.hp.com/products/servers/technology/whitepapers/datacenter.html 4 - Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 5
(s) to use. HP provides online power calculators for making accurate power consumption estimates for most ProLiant servers. Each calculator (Figure 2) allows the IT infrastructure designer to predetermine the power requirements for a server chassis according to configuration parameters entered into - Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 6
Space issues The 1U and blade server form factors allow for high-density installations that can occupy 100 percent of the front U space in a rack. This leaves only rear U or side ("zero U") space for mounting power distribution components. HP has designed components to address space issues that are - Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 7
PDUs that individually support multiple load segments (Figure 5B). In either case, a circuit breaker is associated with each load segment (LS). Figure 5. Segmented power distribution A. Segmenting with HP Modular PDU components LS1 Ext. Strip PS A PS B HP ProLiant servers 1 thru 8 LS2 Ext - Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 8
Redundant power distribution Redundant power systems require two power distribution circuits, one for each power bus. Redundant operation requires configuring servers with redundant power supplies, each capable of supporting the full load of a server, if necessary. For redundant operation, the PDU - Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 9
HP Systems Insight Manger (SIM) that can receive and log SNMP traps (alerts) to manage alarm conditions. Other considerations An effective power subjects, refer to the HP technology papers web site at the following URL: http://h18004.www1.hp.com/products/servers/technology/whitepapers/index.html 9 - Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 10
Enclosure uses auto-ranging power supplies and supports redundant power supply configurations. Up to four BladeSystem c7000 enclosures can be installed in a standard 42U rack. Figure 7. HP ProLiant c-Class system and power distribution components HP c7000 Enclosure with server blades Modular PDU - Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 11
Table 2. Power distribution configurations for using one to four HP BladeSystem c7000 enclosures in a standard rack No. of c7000 through the URL provided in the "For more information" section. [2] Configuration requires optional 600mm rack extension kit (P/N AF058A). [3] Redundant operation requires - Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 12
power supply and supports power redundancy when used in the 1 + 1 power supply configuration option. These configurations use monitored PDUs and fixed cord extension bars (Figure 8). Figure 8. HP ProLiant DL360 G5 system and power distribution components HP ProLiant DL360 G5 server Monitored - Compaq DL360 | Critical factors in intra-rack power distribution planning for hi - Page 13
server systems that draw significant amounts of facility power require careful consideration to ensure that safety, availability, and manageability are not compromised. The variety of power distribution products available from HP allows an almost unlimited number of power distribution configurations
Critical factors in intra-rack power distribution planning
for high-density systems
technology brief, 2
nd
edition
Abstract
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2
Introduction
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2
Key factors of power distribution in high-density racks
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3
Power level and phase
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3
Connector types
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4
Power consumption
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5
Space issues
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6
Segmented power distribution
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7
Redundant power distribution
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8
Power circuit monitoring
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9
Other considerations
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9
Sample power distribution solutions
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10
Rack configurations for distributing power to HP ProLiant c-Class servers
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10
Rack configurations for distributing power to HP ProLiant DL servers
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12
Conclusion
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13
For more information
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Call to action
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