HP 3PAR InForm OS 3.1.1 Messages and Operators Guide

NOTE: For further instructions on drive magazine allocation, see the HP 3PAR T-Class Storage
System Installation and Deinstallation Guide .
Power Supply Numbering
Cabinets are divided into upper and lower power domains that contain drive cages or controller
nodes and dedicated power supplies. Drive cages and controller nodes depend on these power
supplies, located at the rear of the system, to supply power from the PDUs at the bottom of the
cabinet.
When viewing the cabinet from the rear, the power supplies in each power domain are numbered
from 0 to 3, from left to right. Figure 19 (page 23) shows an expansion cabinet.
Figure 19 Numbering of Power Supplies within the Power Domains
Understanding Component Numbering 23