IBM DS4800 User, Installation And Maintenance Guide

Table 22. Power supply-fan LEDs
LED Color Normal Status Problem Status Procedure
Power Green LED On = Power
supply-fan is
providing power
Off = Power
supply-fan is not
providing power
Examine the power
supply-fan unit, connected
PDUs, and connected
power circuits for any of the
following conditions:
v The power supply-fan
unit power switch is off.
v A circuit breaker has
tripped in the controller
linked to this power
supply-fan unit is linked.
(The right power
supply-fan is linked to
Controller A; the left
power supply-fan is
linked to Controller B.)
v The connected PDUs are
turned off or have been
tripped.
v There is no power at the
wall circuit.
v The power supply-fan
unit is bad.
Battery 1
Charging
Green LED On = Battery
charged and
ready
Blinking =
Battery charging
Off = Battery
faulted,
discharged, or
missing
Battery 2
Charging
Green LED On = Battery
charged and
ready
Blinking =
Battery charging
Off = Battery
faulted,
discharged, or
missing
Needs
Attention
Amber LED Off On = Power
supply-fan needs
attention
“Troubleshooting the
storage subsystem” on
page 109
Service
Action
Allowed
Blue LED Off On = Safe to
remove
“Resetting the controller
circuit breakers” on page
124
“Replacing a power
supply-fan” on page 144
Interconnect-battery unit LEDs
Chapter 4. Operating the storage subsystem 119

IBM DS4800 Specifications

General

Brand	IBM
Model	DS4800
Category	Storage
Language	English