December 2001
Intermediate to advanced
506 pages
10h 4m
English
book
IBM eServer Certification Study Guide - pSeries AIX System Administration
by Christian Pruett, Kristian Strickland, Scott Vetter
Content preview from IBM eServer Certification Study Guide - pSeries AIX System Administration
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2.3. Power on sequence, LEDs, and audio signals
Several MCA based RS/6000 systems have LED displays to show what phase of the boot process the system is going through. If something goes wrong, you can interpret the LED codes and take the appropriate action to rectify the problem.
Tip
As a specialist, memorizing the error codes enables you to quickly get to the heart of critical system problems. Therefore, it is one of the sections of the exam that requires memorization.
PCI RS/6000 systems use sounds and graphics to show the different phases of the boot process. For example, as soon as you power on the system, an audio beep is produced when the processor is found to be active, the PowerPC logo is shown (or text is presented) when the system ...
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