When a disk drive LED lights steadily and is green, it indicates that the slot is populated and that the drive is receiving power. When an LED is green and flashing, it indicates that there is activity on the disk. Some applications use the LED to indicate a fault on the disk drive. In this case, the LED changes color to yellow and lights steadily. The disk drive LEDs retain their state when the system is
powered off. A yellow indicator also results in the yellow general fault indicator being lit on the system front panel.
7.12.1.5Error Messages
Error messages and other system messages are saved in the file /var/adm/ messages.
The two
7.12.2Software Commands
System software provides Solaris operating system commands that you can use to diagnose problems, and OBP commands that enable you to diagnose problems even if the Solaris operating environment is unavailable for any reason. For more information on Solaris commands, see the appropriate man pages. For additional information on OBP commands, see the OpenBoot 3.x Command Reference Manual. (An online version of the manual is included with the Solaris System Administrator AnswerBook that ships with Solaris software.)
7.12.2.1Solaris prtdiag Command
The prtdiag command is a UNIX shell command used to display system configuration and diagnostic information, such as:
System configuration, including information about clock frequencies, CPUs, memory, and I/O card types
4Diagnostic information
Failed
To run prtdiag, type:
%/usr/platform/sun4u/sbin/prtdiag
216 Sun Enterprise 220R Server Service Manual ♦ January 2000, Revision A
