Table
25.
FAStT500
RAID
controller
indicator
lights
(back
panel)
Indicator
light
Color
Normal
Operation
Problem
Indicator
Possible
conditions
suggested
by
the
problem
indicator
(1)
Fan
and
communications
module
Fan
and
communication
fault
Amber
Off
On
v
Fan
and
communications
module
failed
or
is
installed
incorrectly
v
Overtemperature
condition
Power
supply
Power
supply
Green
On
Off
v
No
power
to
controller
unit
v
No
power
to
storage
subsystem
v
Power
supply
failed
v
Overtemperature
condition
1.
Always
use
the
storage
management
software
to
identify
the
failure.
The
mini
hub
indicator
lights
on
the
back
of
the
controller
unit
are
shown
in
Figure
33.
Table
26
on
page
51
describes
the
mini
hub
indicator
lights.
OUT
IN
Fault
Bypass
(upper port)
Bypass
(lower port)
Loop
good
Mini-hub indicator lights
Figure
33.
FAStT500
RAID
controller
mini
hub
indicator
lights
50
IBM
TotalStorage
DS4000:
Hardware
Maintenance
Manual
Summary of Contents for System Storage DS4000
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