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24-2 SPARC Enterprise M8000/M9000 Servers Service Manual • June 2010
24.1 Addition and Deletion of
Rack-mountable Dual Power Feed
This section explains the procedure for replacing a rack-mountable dual power feed
unit (RDPF). The sections below explain the following:
■ Section 24.1.1, “Overview of RDPF” on page 24-2
■ Section 24.1.2, “Addition and Deletion” on page 24-3
Turn off the server power before adding or deleting a rack-mountable dual power
feed option.
24.1.1 Overview of RDPF
This section provides an overview of rack-mountable dual power feed and describes
the mounting location.
Rack-mountable dual power feed is the M8000 dedicated option. It is mounted on
equipment rack of M8000. In case that M8000 uses the single-phase AC power input,
rack-mountable dual power feed enables it to receive the supply of power from the
separate independent external power supply and assures the power output to the
servers in time of errors of external power. A rack-mountable dual power feed
option is never a target of hot replacement because it is not a FRU.
FIGURE 24-1 shows the mounting location of rack-mountable dual power feed of
M8000.