Locator LED:
This LED can be lit remotely by the system administrator to aid in
visually locating the system-board tray. In an IPMI environment, the system
administrator can light the LED by using the IPMI
chassis identify
command.
Hard disk drive activity LED:
When this LED is lit or flashing, it indicates that an
associated hard disk drive is in use.
In configurations that contain hot-swap hard disk drives, each hot-swap hard disk
drive has the following LEDs.
v
Hot-swap hard disk drive activity LED:
When this LED is flashing, it indicates
that the drive is in use.
v
Hot-swap hard disk drive status LED:
When this LED is lit, it indicates that the
drive has failed.
Power-on LED:
The states of the power-on LED are as follows:
v
Off:
AC power is not present, or the power supply or the LED itself has failed.
v
Flashing rapidly (4 times per second):
The system-board tray is turned off and
is not ready to be turned on. The power-control button is disabled.
v
Flashing slowly (once per second):
The system-board tray is turned off and is
ready to be turned on. You can press the power-control button to turn on the
system-board tray.
v
Lit:
The system-board tray is turned on.
v
Fading on and off:
The system-board tray is in a reduced-power state. To wake
the system-board tray, press the power-control button or use the IMM Web
interface.
Note:
If this LED is off, it does not mean that no electrical power is present. The
LED might be burned out. To remove all electrical power, you must remove
the system-board tray from the chassis, remove the chassis from the rack, or
disconnect the power cord from the power source.
Rear view
The following illustration shows the connector on the rear of the 2U chassis. The 3U
chassis is similar.
Power-cord connector:
Connect the power cord to this connector. When the
chassis is installed in an iDataPlex rack, it is automatically connected to power
through a power cord that is mounted to the rack rail.
Chapter 2. Introduction
9
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