![background image](http://html2.mh-extra.com/html/ibm/system-storage-ds4000/system-storage-ds4000_hardware-maintenance-manual_3312302110.webp)
completes
its
power
up
before
you
check
for
faults.
It
can
take
up
to
15
minutes
for
the
battery
to
complete
its
self-test
and
up
to
24
hours
to
fully
charge,
particularly
after
an
unexpected
power
loss
of
more
than
a
few
minutes.
The
indicator
lights
for
the
components
of
the
DS4400
storage
server
are
described
in
the
following
sections.
Storage
server
indicator
lights
The
storage
server
has
five
indicator
lights,
as
shown
in
Figure
56.
To
view
the
storage
server
indicator
lights,
you
do
not
have
to
remove
the
DS4400
storage
server
bezel.
Table
35
describes
the
storage
server
indicator
lights.
Table
35.
DS4400
storage
server
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
DS4400
storage
server
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
in
DS4400
storage
server
v
Overtemperature
condition
Power
supply
fault
Amber
Off
On
v
Power
supply
failed
or
if
the
Power
supply
is
turned
off,
disconnected,
or
not
fully
seated
in
DS4400
storage
server
v
Overtemperature
v
No
power
to
DS4400
storage
server
or
storage
subsystem
(all
indicator
lights
are
off)
FAStT700
Power
Green light indicates power is on.
Normal status: On
Problem status: Off
Power suppl y
Amber light indicates a power supply fault.
Normal status: Off
Problem status: On
Fan
Amber light indicates a fan fault.
Normal status: Off
Problem status: On
Contr oller
Amber light indicates a controller fault.
Normal status: Off
Problem status: On
Fast Write Cac he
Green light indicates data in cache.
Figure
56.
DS4400
storage
server
indicator
lights
82
IBM
TotalStorage
DS4000:
Hardware
Maintenance
Manual
Summary of Contents for System Storage DS4000
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