HP 3000 Enterprise Virtual Array - Manual (Page 131)

Storage System Hardware Components
131 Enterprise Virtual Array 3000 User Guide
PDMs
There are eight PDMs mounted in the rear of each rack:
■ Four mounted on the left vertical rail connect to PDU 1.
■ Four mounted on the right vertical rail connected to PDU 2.
Each PDM has six AC receptacles and two thermal circuit breakers. See
Figure 58 . The PDMs distribute the AC power from the PDUs to the enclosures.
Two power sources exist for each controller pair and drive 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.
1
Power receptacles
2
Thermal circuit breakers
3
IEC309 AC power connector
Figure 58: Enterprise Rack PDM
CXO7568B
1
2
3