Figure 50 Diagnostic Panel LEDs
Table 47 lists the diagnostic panel LED states.
Table 47 Diagnostics Panel LED States
DefinitionFlash RateLED Color
CRU health is assumed good.LED OffOff
CRU health last known to be bad.SteadyAmber
Customer Replaceable Unit Health LEDs
In addition to the front panel diagnostic LEDs, customer replaceable units (CRUs) provide additional
diagnostic capability with LEDs, whose order or layout is product dependent.
NOTE: If multiple error conditions occur, all applicable CRU lights are activated. In such a case,
the most critical error will determine the front panel color.
Diagnostics
A suite of offline and online support tools are available to enable manufacturing, field support
personnel, and the customer to troubleshoot system problems. In general, if the operating system
(OS) is already running, it is not desirable to shut it down, and the online support tools should be
used.
If the OS cannot be booted, you must use the offline support tools resolve the problem. The offline
support tools are available either from the EFI partition, or from the IPF Offline Diagnostics and
Utilities CD (IPF systems only). Once the problem preventing booting has been resolved, the OS
should be booted, and the online support tools should be used for any further testing.
If it is not possible to reach EFI from either the main disk or from a CD, you must troubleshoot,
using the visual fault indicators, console messages, and system error logs that are available.
Troubleshooting Tools 145
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