Sun Microsystems SPARCstation 4, Service Manual

Page: 37 / 190

Chapter 2 Troubleshooting Overview 2-9
test disk
test disk0
test disk1
test disk2
test disk3
Tests internal or external SCSI
disks that have a self-diagnostic
program contained in the drive
controller (
disk0
= SCSI
address 0,
disk1
= SCSI
address 1,
disk2
= SCSI
address 2,
disk
and
disk3
=
SCSI address 3).
The drive must be spinning
before this test is executed
or the test will fail. Enter a
boot
<disk alias> command
to cause the drive to spin
up.
Disk drive does not
function properly.
(Does not apply to the
SPARC Xterminal 1
system.)
test tape
test tape0
test tape1
Tests the SCSI tape drive by
executing the drive self-test
program.
tape
and
tape 0
are
the first tape drive.
tape 1
is
the second tape drive.
Connect the tape drive to
the system and then turn on
the power. See description. (Does
not apply to the SPARC
Xterminal 1 system.)
test ttya
test ttyb
Outputs an alphanumeric test
pattern on the system serial
ports (
ttya
= serial port A,
ttyb
= serial port B).
Attach a terminal to the
serial port to observe the
output. Tests serial ports.
test keyboard
Executes the keyboard self- test.
The four LEDs on the keyboard
should flash on once, and the
message
Keyboard Presen
t is
displayed.
Keyboard must be
connected. See description.
test-memory
Tests all of the system main
memory if the
diag-switch
is
true
.
If
diag-switch
is set to
false
, it tests the memory
according to the number
specified in
selftest-#megs
.
None. See description.
test-all
Tests all devices in the system
(such as SBus cards) that have a
built-in test program. Hard
disks, tapes, and CD-ROMs are
not tested. Set the
diag-switch?
NVRAM parameter to
true
.
When a device driven
by an SBus card is not
functioning properly.
watch-clock
Displays seconds from the
system’s Time-of-Day chip. None. See description.
watch-net
Monitors broadcast Ethernet
packets on the Ethernet cable(s)
connected to the system. Connect the system to the
network via the desired
Ethernet port. See description.
watch-aui
Monitors broadcast Ethernet
packets (10Base5—Thicknet) on
the Ethernet cable(s) connected
to the system. Connect the system to the
network via the desired
Ethernet port. See description.
TABLE 2-4
Selected FORTH Diagnostic Tests (Continued)
Type of Test Description Preparation When to Use