Sun Microsystems Netra T5220, Service Manual

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Chapter 1 Server Diagnostics 1-3
The LEDs, ILOM, Solaris OS PSH, and many of the log files and console messages are
integrated. For example, a fault detected by the Solaris software will display the
fault, log it, pass information to ILOM where it is logged, and depending on the
fault, might light one or more LEDs.
The diagnostic flowchart in
FIGURE 1-1
and
TABLE 1-1
describes an approach for using
the server diagnostics to identify a faulty field-replaceable unit (FRU). The
diagnostics you use, and the order in which you use them, depend on the nature of
the problem you are troubleshooting. So you might perform some actions and not
others.
The flowchart assumes that you have already performed some rudimentary
troubleshooting such as verification of proper installation, visual inspection of cables
and power, and possibly performed a reset of the server (refer to the
s erver
installation guide and server administration guide for details).
Use this flowchart to understand what diagnostics are available to troubleshoot
faulty hardware. Use
TABLE 1-1
to find more information about each diagnostic in this
chapter.