HP EVA P6000 Storage - Manual (Page 32)

A PDU 2 failure:
•
Disables the power distribution circuit
•
Removes power from the right side of the PDM pairs
•
Disables drive enclosures PS 2
•
Disables the controller PS 2
PDMs
Depending on the rack, there can be up to eight PDMs mounted in the rear of the rack:
•
The PDMs on the left side of the PDM pairs connect to PDU 1.
•
The PDMs on the right side of the PDM pairs connect to PDU 2.
Each PDM has seven AC receptacles. The PDMs distribute the AC power from the PDUs to the
enclosures. Two power sources exist for each controller pair and disk enclosure. If a PDU fails, the
system will remain operational.
CAUTION: The AC power distribution within a rack ensures a balanced load to each PDU and
reduces the possibility of an overload condition. Changing the cabling to or from a PDM could
cause an overload condition. HP supports only the AC power distributions defined in this user
guide.
Figure 13 Rack PDM
1. Power receptacles
2. AC power connector
32 P63x0/P65x0 EVA hardware