Internal Health LED (IHLED)
The required front panel Internally Serviceable Server Health LED, called Internal Health LED,
indicates the status of the components internal to the system chassis. These components require the
user to open the system in order to be serviced. This LED will maintain its state when the system is
in standby mode (system power turned off but AC power still applied to the system).
On larger Integrity servers that have a Diagnostic LED board, this LED tells the service person that
she/he should view that board for more information about the server failure. If the Internal Health
LED is green, there is no fault information displayed on the Diagnostic LED board, and no fault
information displayed on LEDs that are inside the server.
The amber indicators on this LED must correspond to internal health conditions that will light other
LEDs in the box, indicating which component must be serviced to correct the fault. For example,
the Diagnostic LED board will have a fault indicator lit when this LED is in the Amber condition.
Failures that cause the Internal Health LED to light will not cause the External Health LED to light.
Table 43 displays information about the Internal Health LED states.
Table 43 Internal Health LED States
DefinitionFlash RateLED Color
Health good on all internal CRUs and system off.OffOff
Health good on all internal CRUs, and system firmware has passed
“BOOT_START”.
SteadyGreen
An internally accessible CRU failed (system is on or in standby mode). Check
the Diagnostic Panel or internal system LEDs.
Flash 1 HzAmber
The internal health LED will clear once all of the LEDs on the Diagnostic LED panel have been
cleared. For details on how each LED in the Diagnostic panel is cleared, see “Diagnostics Panel
LEDs” (page 144); also see the respective system specification for the server in question. Events that
cause each internal FRU (or Diagnostic Panel) LED to light are listed in the FRU section.
Amber supersedes Green. This LED is cleared when all failed internally accessible entities are
repaired and report that they are good, or on any AC/standby power cycle.
Table 44 describes the VFP Internal Health LEDs.
Table 44 VFP Internal Health Description
StateLED Color
None.Off
Internal parts, including CPUs and memory are healthy.Green
An internally accessible CRU failed. Check the Diagnostic
panel.
Flashing amber
System Health LED (SHLED)
This LED is used:
• To carry forward the ATTENTION functionality of legacy Integrity and HP 9000 front panel
designs
• To give an indication of whether the system is up or down. External and internal health LEDs
do not indicate if the system is booted.
• To cover the wide range of faults for which software/firmware is not completely sure that a
FRU must be reseated or replaced. External and internal health LEDs do not light unless software
or firmware makes a solid determination that a FRU must be reseated or replaced.
Troubleshooting Tools 143
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