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.
test cdrom Performs a self-test diagnostic on
the CD-ROM drive.
The CD-ROM must be set to
SCSI target 6 and have a CD
inserted in the drive or the
test will fail.
See description.
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.
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 Presentis
displayed.
Keyboard must be connected. See description.
test-memory Tests all of the system main
memory if the diag-switch? is
true.Ifdiag-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.
TABLE 2-4 Selected FORTH Diagnostic Tests (Continued)
Type of Test Description Preparation When to Use
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