Server Controls, Leds, And Power; Front View - IBM System x3750 M4 Type 8722 Installation And Service Manual

Server controls, LEDs, and power

This section describes the controls and light-emitting diodes (LEDs) and how to
turn the server on and off. For the locations of other LEDs on the system board,
see "System-board LEDs" on page 31.

Front view

The following illustration shows the controls, LEDs, and connectors on the front of
the server.
v Rack release latches: Press the latch on each front side of the server to slide the
v Electrostatic-discharge connector: Connect an electrostatic-discharge wrist strap
v Drive status LEDs: These LEDs are on SAS or SATA hard disk drives and solid
v Drive activity LEDs: These LEDs are on SAS or SATA hard disk drives and solid
v CD/DVD eject button: Press this button to release a DVD or CD from the
v CD/DVD drive activity LED: When this LED is lit, it indicates that the
v Operator information panel: This panel contains controls and LEDs that provide
v Operator information panel release button: Press the blue release button and
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System x3750 M4 Types 8722 and 8733: Installation and Service Guide
server out of the rack.
to this connector when you work with static-sensitive devices.
state drives. When one of these LEDs is lit, it indicates that the drive has failed.
When this LED is flashing slowly (one flash per second), it indicates that the
drive is being rebuilt. When the LED is flashing rapidly (three flashes per
second), it indicates that the controller is identifying the drive.
state drives. Each hot-swap drive has an activity LED, and when this LED is
flashing, it indicates that the drive is in use.
CD/DVD drive.
CD-RW/DVD drive is in use.
information about the status of the server. For information about the controls
and LEDs on the operator information panel, see "Operator information panel"
on page 17.
pull out the light path diagnostics panel to view the light path diagnostics LEDs
and buttons. See "Light path diagnostics" on page 18, "Light path diagnostics"
on page 156, and "Light path diagnostics LEDs" on page 159 for more
information about light path diagnostics.