Service manual

3-28 SPARC Enterprise T1000 Server Service Manual • April 2007
3.4.3.2 Diagnosing the System Hardware
You can use POST as an initial diagnostic tool for the system hardware. In this case,
configure POST to run in maximum mode (diag_mode=service, setkeyswitch=
diag, diag_level=max) for thorough test coverage and verbose output.
3.4.4 Running POST in Maximum Mode
This procedure describes how to run POST when you want maximum testing, as in
the case when you are troubleshooting a server or verifying a hardware upgrade or
repair.
1. Switch from the system console prompt to the sc> prompt by issuing the #. escape
sequence.
2. Set the virtual keyswitch to diag so that POST will run in Service mode.
3. Reset the system so that POST runs.
There are several ways to initiate a reset. The following example uses the
powercycle command. For other methods, refer to the SPARC Enterprise T1000
Server Administration Guide.
ok #.
sc>
sc> setkeyswitch diag
sc> powercycle
Are you sure you want to powercycle the system [y/n]? y
Powering host off at MON JAN 10 02:52:02 2000
Waiting for host to Power Off; hit any key to abort.
SC Alert: SC Request to Power Off Host.
SC Alert: Host system has shut down.
Powering host on at MON JAN 10 02:52:13 2000
SC Alert: SC Request to Power On Host.