4 Troubleshooting



The primary diagnostic software for troubleshooting the SBus expansion subsystem is built into the expansion adapter card PROM. Also useful is the SunDiag System Exerciser that is shipped on the compact disc with the device driver.

4.1 Powering on the Subsystem

Before powering on the SBus expansion subsystem, SPARCsystem or SPARCserver, and other devices, ensure that the SBus expansion cable is connected securely to the expansion adapter card and to the SBus expansion board connector.

Turn on the system in the following order:

    1. Devices connected to the SBus expansion board
    2. Devices connected to the SPARCsystem or SPARCserver
    3. SPARCsystem or SPARCserver
    4. Monitor (if applicable, then check the following:)
      a. Check if the mouse LED is lit: if not lit, contact your local service provider.
      b. Check that the monitor display is lit.
      c. Check that the banner screen is displayed. An example follows:

4.2 Testing the SBus Expansion Board Subsystem Hardware

Test the SBus expansion board subsystem hardware, including the expansion adapter card in the SPARCsystem or SPARCserver, by using the test command or the Sundiag System Exerciser described in Appendix A.

Test Command

To use the test command, type the following:

Note - The following screen displays are examples only. The actual messages displayed on the screen will depend on the software running on the system.

Note - For the following procedure, xbox is synonymous with xboard. 

-------------------------------------------------------------------

system% su
Password:(Type superuser password)
system# halt
Type b(boot), c(continue), or n(new command mode)
> n
ok test /sbus/SUNW,xbox@1	(If adapter card installed in slot 0)
ok test /sbus/SUNW,xbox@2	(If adapter card installed in slot 1)
ok test /sbus/SUNW,xbox@3	(If adapter card installed in slot 2)
ok old-mode
> b
(System reboots)

-------------------------------------------------------------------

To test the functionality of any SBus card installed in the SBus Expansion subsystem which has the test routine built into the SBus card PROM, determine the SBus slot numbers of the Expansion Adapter card and the SBus card to be tested.

    1. If you are in Unix mode, type the following:

%devinfo filename

The devinfo command displays known system devices, including the SBus card. The output will indicate the device name, unit number, and whether a system device driver has claimed the device. Use the more command or a text editor to view the results of devinfo. To use the test command to test the SBus cards, type the following: 

----------------------------------------------------------------------------------------

system% su
Password:(Type superuser password)
system# halt
Type b(boot), c(continue), or n(new command mode)
> n
ok test /sbus/SUNW,xbox@1/cardname@2	(If adapter card installed in slot 1 and the 
SBus card you are testing is in slot 2.)
ok test /sbus/SUNW,xbox@2/cardname@0	(If adapter card installed in slot 2 and the 
SBus card you are testing is in slot 0.)
ok test /sbus/SUNW,xbox@3/cardname@1	(If adapter card installed in slot 3 and the 
SBus card you are testing is in slot 1.)
ok old-mode
> b
(System reboots)

----------------------------------------------------------------------------------------
    2. If you are in Unix mode, do the following: 
----------------------------------------------------------------------------------------

system# halt
Type b(boot), c(continue), or n(new command mode)
> n
ok cd / <cr'>
ok ls <cr'>
ok /sbus/SUNW,xbox@1/cardname@2	(If adapter card installed in slot 1 and the SBus 
card you are testing is in slot 2.)
ok /sbus/SUNW,xbox@2/cardname@0	(If adapter card installed in slot 2 and the SBus 
card you are testing is in slot 0.)
ok /sbus/SUNW,xbox@3/cardname@1	(If adapter card installed in slot 3 and the SBus 
card you are testing is in slot 1.)
ok old-mode
> b
(System reboots)

----------------------------------------------------------------------------------------