This LED indicates the overall health state of the system, including the state of system firmware and
the OS. If the LED is Amber or Red, the system needs attention, and the event logs should be
examined for details of the problem.
Table 45
describes the System Health LED states.
Table 45 System Health LED States
State
Flash Rate
LED Color
System is off, or system is booting firmware with no failures, since SEL logs last
examined.
Off
Off
System has left the firmware boot, and an OS is booting or running with no
failures, since SEL logs last examined.
Steady
Green
A warning or critical failure has been detected and logged.
Flash 1 Hz
Amber
A fatal fault has been detected and logged.
Flash 2 Hz
Red
Table 46
displays the following strings in its virtual front panel for the four states of this LED
Table 46 VFP System Health Description
State
LED Color
None.
Off
The OS is booting or running.
Green
Warning or critical fault. Check the logs for details.
Flashing amber
Fatal fault. The system crashed or cannot boot. Check the
logs for details.
Flashing red
Locator Switch/LED (Unit Identifier or UID)
The Locator Switch/LED allows a specific system to be identified in a rack or data center
environment. One Locator Switch/LED is located in the front panel, and a second is located in the
rear of the chassis. LEDs are incorporated inside the pushbutton to minimize space. Both switches
are toggle switches, meaning you push it once to turn on the LED, and you push it again to turn
off the LED. Pressing the front panel Switch/LED, or entering the iLO 2 MP and LOC commands,
lights the rear panel LED, and vice versa.
•
Off = Off
•
Blue (Not flashing) = Identification
Diagnostics Panel LEDs
The Diagnostics Panel improves serviceability by allowing you to look in a single location for the
LEDs that provide failing FRU locating/mapping information. These amber LEDs are only lit when
a failure occurs; otherwise, they are off. A label on the panel is oriented in a fashion analogous
to the orientation of the components within the server: a diagnostic LED exists for each FRU in the
system, including all DIMMs.
LED locations are presented in
Figure 50
.
144 Troubleshooting