HP SL6000 - Manual (Page 18)

Power supply options
Common slot power supplies come in multiple power ratings and have achieved efficiency ratings of
up to 92 percent. Three power supply options are available for the SL6000 Scalable System:
•
460W AC up to 92% efficiency
• 750W AC up to 92% efficiency
• 1200W AC up to 90% efficiency
Common slot power supplies provide improved power delivery and the advantage of reclaiming lost
power. With the exception of the 1200W power supply, they meet Climate Savers Gold
requirements. The 1200W power supply meets Climate Savers Silver requirements. The power
loading efficiency curve for the 750W power supply (Figure 14) provides an example of the high
levels of power efficiency achieved by power supplies used in ProLiant G6 servers.
Figure 14. Power/Efficiency curve for the 750 W HP power supply
Oversized and lightly loaded power supplies do not run as efficiently as those that are heavily
loaded. Therefore, HP recommends using the HP Power Advisor to identify the optimal power supply
for each SL6000 configuration. With a choice of three power supplies of different wattage, customers
can choose the power supply option that meets, but does not exceed their needs.
The HP Power Advisor is available online at
www.hp.com/go/hppoweradvisor .
Redundant power operation
The SL6000 Scalable System has four redundancy modes: User configurable, full AC or DC
redundant, AC redundant with throttling, and no redundancy mode.
The user configurable mode can be used to allocate power levels to each chassis, ensuring that total
power is within the data center budget. The Power Management Controller monitors the chassis
power and uses HP power capping technology to limit the AC input power. This feature is enabled as
part of the LO100i Advanced Pack software license for the nodes.
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