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2.5
Installing and Removing a Hot-swappable
Redundant Power Supply Module
The power subsystem consists of a power backplane and hot-swappable power
supply modules. These components are held in place by a metal rack enclosure.
The backplane and the rack allow installation of up to three 430-watt power
supply modules in a hot-swappable redundant configuration.
power configuration enables a fully-configured system to continue running even
if one power supply fails. The remaining two power supply modules still satisfy
the minimum 860-watt system power requirement.
The power subsystem provides a standby electric current and a remote on and off
feature to support remote cold reboot. See the Remote Diagnostic Manager (RDM)
User's Guide for more information.
The power supply subsystem should supply a minimum 860W (2 power supply
modules) DC power to the whole system. An additional power supply module
can also be added for fail-safe redundancy.
If a power supply module fan fails to operate,
the power supply module will shut down. The
power status LED indicator of the power
supply module will be turned off. The fan
module failure LED indicator will light up.
If the fans are functioning properly and the
power supply fails, the fans will keep
operating.
Some configurations of the Altos 21000
system have two power supply modules
while others have three power supply
modules.
Chapter 2 - System Housing 2-29
A redundant
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