Troubleshooting Tools; Leds; Front Panel; External Health Led (Ehled) - HP Integrity rx6600 User's & Service Manual

Troubleshooting Tools

LEDs

Front Panel

The front panel of the system contains the Power Button/System Power LED, Internal and External
Health LEDs, System Health LED, Locator Switch/LED, and an INIT button. This server uses flashing
states (for example, flashing amber or red) on these LEDs to indicate a warning or an error.
There are a total of three buttons, arranged horizontally, with the UID button and the Power button
each having an integrated LED. In addition to the two integrated button/LEDs, there are three
health LEDs and an INIT button.
The health LEDs are arranged sequentially in line with the Power button/LED, and as the system
starts up, there will be more "green" the further the system proceeds in the startup process.
1. The power LED will turn green soon as the system starts to power up.
2. The external health indicator will turn green as soon as the BMC can light it.
3. The internal health indicator will turn green as soon as the BOOT_START event is received
from system firmware (BOOT_START can be determined by LED states on the I/O backplane
board).
4. The system health indicator will turn green when firmware leaves "exit boot services" and we
begin to boot an OS.
The health LEDs are driven by the BMC; the Power LED is driven solely by hardware. BMC code
determines the state of the Internal and External Health LEDs, while the iLO 2 MP code, examining
incoming events using its event dictionary, determines the state of the System Health LED.

External Health LED (EHLED)

The front panel Externally Serviceable Server Health LED, called the External Health LED, indicates
the status of the components that are externally serviceable. In most systems, this LED is only used
to monitor the power supply status and external fans. Whenever the external health LED is lit, the
corresponding FRU should be lit for the failed component.
Failures that cause the External Health LED to light will not cause the Internal Health LED to light.
These two LEDs cover failures of different components.
Table 41 displays information about the External Health LED states.
Table 41 External Health LED States
LED Color
Off
Green
Amber
Amber supersedes green. This LED is cleared when all failed externally accessible entities are
repaired and report that they are good, or on any AC/standby power cycle.
Table 42 describes the VFP External Health LEDs.
Table 42 VFP External Health Description
Off
On Green
Flashing Amber
142 Troubleshooting
Flash Rate
LED Off
Steady
Flash 1 Hz
<none>
External parts, including fans and power supplies, okay
A redundant, externally accessible FRU failed (check front/back LEDs)
Status
Health good on all external CRUs and system power is off.
System power is on; externally serviceable components (usually accessible
from front or back, such as fans and power supplies) are okay.
An externally accessible CRU failed (system is on or in standby mode).
Usually, this is a power supply or fan failure. Check front/back LEDs for
failed component.