Installation Guide
SPARC/CPU-5TE
Page 18
FORCE COMPUTERS
1.5.3
Diagnostics
At power on or after reset, the OpenBoot firmware executes POST. If the NVRAM
configuration parameter diag-switch? is true for each test, a message is displayed on a terminal
connected to the first serial port. In case the system is not working correctly, error messages
indicating the problem are displayed. After POST, the OpenBoot firmware boots an operating
system or enters the Forth Monitor if the NVRAM configuration parameter auto-boot? is false.
The Forth Monitor includes several diagnostic routines. These on-board tests let you check
devices such as network controller, SCSI devices, floppy disk system, memory, clock and
installed SBus cards. User installed devices can be tested if their firmware includes a selftest
routine.
The table below lists several diagnostic routines.
Table 4: Diagnostic Routines
To check the on-board SCSI bus for connected devices, type:
Command
Description
probe-scsi
Identify devices connected to the on-board SCSI bus
probe-scsi-all [
device-path
]
Perform probe-scsi on all SCSI buses installed in the
system below the specified device tree node. (If
device-path
is omitted, the root node is used.)
test
device-specifier
Execute the specified device’s selftest method.
device-specifier
may be a device path name or a
device alias.
For example:
test net - test network connection
test /memory - test number of megabytes specified in
the selftest-#megs NVRAM parameter or test all of
memory if diag-switch? is true
test-all [
device-specifier
]
Test all devices (that have a built-in selftest method)
below the specified device tree node. (If
device-path
is omitted, the root node is used.)
watch-clock
Monitor the clock function
watch-net
Monitor network connection
ok
probe-scsi
Target 3
Unit 0 Disk MICROP 1684-07MB1036511AS0C1684
ok
