Sun Microsystems Netra CT 410, Руководство по обслуживанию

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4-16 Netra CT Server Service Manual • February 2007
For more information on these and other tests in the SunVTS test suite, refer to the
Computer Systems Release Notes Supplement for Sun Hardware document or the
SunVTS documentation on the Solaris on Sun Hardware Answerbook, both included
with your Solaris operating environment.
4.4 Troubleshooting the System Using the
Power-On Self Test (POST)
When you first power-up the Netra CT server, some or all of the green Power LEDs
on the system status panel flash on and off for several seconds. The green Power
LED for the I/O slot holding the host board (slot 1 in the Netra CT 810 server and
slot 3 in the Netra CT 410 server) lights solid green while the green Power LEDs for
the remaining components are flashing on and off; this status is an indication that
the CPU board passed the power-on self test (POST).
Before any processing occurs on a system, the system must successfully complete the
POST. Messages are displayed for each step in the POST process. If there is a critical
failure, the system does not complete POST and does not boot. To monitor this
process, you must be connected to the TTY A port on the CPU board or rear
transition module. See
Section 5.2.1, “Logging In to the Netra CT Server” on
page 5-5 .
OpenBoot PROM (OBP) variables control the console port. The variables and their
possible settings are described as follows.
To see the console output device, enter:
The screen displays output similar to the following:
The possible settings for this variable are as follows:
■
ttya
(default)
■ ttyb
■
screen
■ rsc
ok printenv output-device
output-device ttya