IBM 17011RS Maintenance Manual - Page 24

Storage, subsystem, controls

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Storage subsystem controls and LEDs The following sections show the DS300 storage subsystem controls and LEDs. Front view The following illustration shows the LEDs on the front of the DS300 storage subsystem. Power-on LED Locator LED Storage subsystem fault LED Hard disk drive activity LED Hard disk drive status LED Figure 6. DS300 storage subsystem front LEDs For information about installing and replacing hard disk drives, see "Installing a hot-swap hard disk drive" on page 38 and "Replacing a hot-swap hard disk drive" on page 39. For more information about the LEDs, see "Front view." Rear view The following sections show the LEDs, controls, and connectors on the components at the rear of the storage subsystem. Power supply: The following illustration shows the LEDs, controls, and connectors on the power supply. Power OK LED Fault LED AC power connector AC power switch Figure 7. DS300 power supply LEDs, controls, and connectors Power cord connector Connect the power cord to this connector. AC power on/off switch Use this switch to turn the power supply on and off. Power OK LED (green) When this LED is lit, it indicates that the power supply is turned on. Fault LED (amber) When this LED is lit, there is a fault with either the power supply or a fan. 10 IBM TotalStorage DS300 and DS400: Hardware Maintenance Manual

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Storage
subsystem
controls
and
LEDs
The
following
sections
show
the
DS300
storage
subsystem
controls
and
LEDs.
Front
view
The
following
illustration
shows
the
LEDs
on
the
front
of
the
DS300
storage
subsystem.
For
information
about
installing
and
replacing
hard
disk
drives,
see
“Installing
a
hot-swap
hard
disk
drive”
on
page
38
and
“Replacing
a
hot-swap
hard
disk
drive”
on
page
39.
For
more
information
about
the
LEDs,
see
“Front
view.”
Rear
view
The
following
sections
show
the
LEDs,
controls,
and
connectors
on
the
components
at
the
rear
of
the
storage
subsystem.
Power
supply:
The
following
illustration
shows
the
LEDs,
controls,
and
connectors
on
the
power
supply.
Power
cord
connector
Connect
the
power
cord
to
this
connector.
AC
power
on/off
switch
Use
this
switch
to
turn
the
power
supply
on
and
off.
Power
OK
LED
(green)
When
this
LED
is
lit,
it
indicates
that
the
power
supply
is
turned
on.
Fault
LED
(amber)
When
this
LED
is
lit,
there
is
a
fault
with
either
the
power
supply
or
a
fan.
Hard disk drive activity LED
Hard disk drive status LED
Power-on LED
Locator LED
Storage subsystem
fault LED
Figure
6.
DS300
storage
subsystem
front
LEDs
AC power
connector
AC power
switch
Power OK LED
Fault LED
Figure
7.
DS300
power
supply
LEDs,
controls,
and
connectors
10
IBM
TotalStorage
DS300
and
DS400:
Hardware
Maintenance
Manual