• Power Cooling Module is an integrated power supply, battery, and cooling fan. There are
two types of PCMs:
◦ The 580 W is used in the drive enclosures and does not include a battery.
◦ The 764 W (includes a replaceable battery) is used in the node enclosures. The PCMs
are located at the rear of the system, on either side of an enclosure.
There are two PCMs per enclosure that are numbered from 0 to 1, from bottom to top and
left to right.
NOTE: In the HP M6720 Drive Enclosure, there are two PCMs that are diagonally from one
another and the remaining PCM slots are filled with blank panels.
• The Power Distribution Units (PDU) are housed in the HP G3 rack. There are two Power
Distribution Units (PDUs) that are mounted horizontally at the bottom of the rack and are
numbered 0 to 1 from bottom to top.
NOTE: Depending on the configuration, PDUs can also be mounted vertically.
The various drive enclosure and controller nodes of the HP 3PAR StoreServ 7450 Storage system
are shown.
Figure 1 Front View of HP 3PAR StoreServ 7450
Figure 2 Rear View of HP 3PAR StoreServ 7450
8 System Components and Specifications
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