Dc Input Power - HP Integrity rx7620 Installation Manual

Cable Connections

DC Input Power

DC Input Power
The HP Integrity rx7620 Server has two fast hot-pluggable DC bulk power supplies that provide 2N
redundancy.
The power configuration is passed to the operating system using the pwrgrd (Power Grid) command. Each of
the four selections in the pwrgrd command matches one of the configurations. The appropriate option should
be selected for the actual line cord configuration. With the correct configuration selected, the LEDs should be
green. When the pwrgrd command is invoked, the following menu is displayed.
IMPORTANT Options 1 and 2 are for HP internal use only. Do not select these options.
prompt> pwrgrd
Power grid configuration preference.
1. Grid A only (Cords A0,A1 required)
2. Grid B only (Cords B0,B1 required)
3. Grids A & B (Cords A0,A1,B0,B1 required)
4. Cords A0 & B0 only
5. Cords A1 & B1 only
Select Option:
If two separate power sources are available, the two power supplies can be plugged into the separate power
sources, increasing system reliability.
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Chapter 4