RAID
controller
indicator
lights
Each
RAID
controller
has
ten
indicator
lights:
one
power,
one
fault,
and
eight
status
lights,
as
shown
in
Figure
64.
Note:
To
view
the
RAID
controller
indicator
lights,
remove
the
DS4500
storage
server
bezel.
Table
43
describes
the
RAID
controller
indicator
lights.
Table
43.
DS4500
RAID
controller
indicator
lights
Indicator
light
Color
Normal
operation
Problem
indicator
Possible
conditions
suggested
by
the
problem
indicator
1
Power
Green
On
Off
v
No
power
to
storage
subsystem
v
Cables
are
loose
or
the
switches
are
off
v
Power
supply
failed,
is
missing,
or
is
not
fully
seated
v
Overtemperature
condition
Fault
3
Amber
Off
On
Controller
failure;
controller
fault
condition
Heartbeat
Green
Blinking
Not
blinking
No
controller
activity
Status
(seven
lights,
not
including
Heartbeat)
Green
Various
patterns
depending
on
the
condition
2
Various
patterns
depending
on
the
condition
2
If
any
status
indicator
lights
are
lit
and
the
controller
is
not
offline,
a
memory
fault
indicates
that
the
controller
FRU
failed.
Fault-B
Amber light indicates
controller fault.
Normal status: Off
Problem status: On
Power
Green light indicates that
power is on.
Normal status: On
Problem status: Off
Heartbeat
Green light indicates that the
controller is working.
Normal status: On (blinking)
Problem status: On
Status
(8 lights including the Heartbeat)
Green lights indicate controller
status.
Controller status
indicator lights
Reset switch
Figure
64.
DS4500
RAID
controller
indicator
lights
96
IBM
TotalStorage
DS4000:
Hardware
Maintenance
Manual
Summary of Contents for System Storage DS4000
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