IBM 86884RX Maintenance Manual - Page 61

Video, diagnostic, tests

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test requires fully written media to be installed in the device being tested. Partially written media will result in a read error at the end of data. If only blank media is available, use the SCSI Tape Write Test to write a test pattern onto the blank media. To run the SCSI Tape Read Test, complete the following steps: 1. From the main menu, select SCSI, and press Enter. 2. Select SCSI Tape Read Test, and press Enter. A default parameter screen appears: SSeleelcetcSt SCCSSI DI Disiksk OOvveerraalll%%PPaarraammeetteerrss 110000 SSCCSSII DDiisskk 00 CCOONNTTIINNUUEE Parameter overall % Common: SCSI Tape n Description Specifies drivewise % as set for each drive. Use the term % to specify all drives Specify an individual drive parameter. The following screen appears when you specify an individual drive: SSCCSSI ITTaappee RReeaadd TTeesstt TTeestsTt aTpaep0e 0 SECSECtnOantOdaNrdtBNrTBtBlIToBlNolcIolNUckockEUckkE : Y:EYSES : : 0000:: 02000000020208000002080000000000 A prompt for the percentage of the drive to be tested appears. 3. Specify the percentage of the drive to be tested, select CONTINUE, and press Enter. If the tape is not positioned at the beginning of the starting block, a tape rewind command is issued before the test begins. v SCSI Tape Rewind Test Use this test to make sure that the SCSI tape drive can rewind a tape. To run the SCSI tape rewind test, complete the following steps. Note: A fully written tape must be installed to run this test. 1. From the main menu, select SCSI, and press Enter. 2. Select SCSI Tape Rewind Test, and press Enter. v SCSI Tape Write Test Use this test to verify the ability of the SCSI tape drive to write data correctly to a tape. Use a tape that you know is good for this test. This test is normally hidden from view because it erases the data on the tape. Select the tape drives to be tested, and run the test. Attention: This test erases all data on the disk. Video diagnostic tests Select this choice to run diagnostic tests on the display and the video controller. Chapter 3. Diagnostics 51

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test
requires
fully
written
media
to
be
installed
in
the
device
being
tested.
Partially
written
media
will
result
in
a
read
error
at
the
end
of
data.
If
only
blank
media
is
available,
use
the
SCSI
Tape
Write
Test
to
write
a
test
pattern
onto
the
blank
media.
To
run
the
SCSI
Tape
Read
Test,
complete
the
following
steps:
1.
From
the
main
menu,
select
SCSI
,
and
press
Enter.
2.
Select
SCSI
Tape
Read
Test
,
and
press
Enter.
A
default
parameter
screen
appears:
Select SCSI Disk
Overall % Parameters
100
SCSI Disk 0
CONTINUE
Parameter
Description
overall
%
Specifies
drivewise
%
as
set
for
each
drive.
Common:
Use
the
term
%
to
specify
all
drives
SCSI
Tape
n
Specify
an
individual
drive
parameter.
The
following
screen
appears
when
you
specify
an
individual
drive:
SCSI Tape Read Test
Test Tape 0
Start Block
End Block
CONTINUE
: YES
: 000000000
: 002028000
A
prompt
for
the
percentage
of
the
drive
to
be
tested
appears.
3.
Specify
the
percentage
of
the
drive
to
be
tested,
select
CONTINUE
,
and
press
Enter.
If
the
tape
is
not
positioned
at
the
beginning
of
the
starting
block,
a
tape
rewind
command
is
issued
before
the
test
begins.
v
SCSI
Tape
Rewind
Test
Use
this
test
to
make
sure
that
the
SCSI
tape
drive
can
rewind
a
tape.
To
run
the
SCSI
tape
rewind
test,
complete
the
following
steps.
Note:
A
fully
written
tape
must
be
installed
to
run
this
test.
1.
From
the
main
menu,
select
SCSI
,
and
press
Enter.
2.
Select
SCSI
Tape
Rewind
Test
,
and
press
Enter.
v
SCSI
Tape
Write
Test
Use
this
test
to
verify
the
ability
of
the
SCSI
tape
drive
to
write
data
correctly
to
a
tape.
Use
a
tape
that
you
know
is
good
for
this
test.
This
test
is
normally
hidden
from
view
because
it
erases
the
data
on
the
tape.
Select
the
tape
drives
to
be
tested,
and
run
the
test.
Attention:
This
test
erases
all
data
on
the
disk.
Video
diagnostic
tests
Select
this
choice
to
run
diagnostic
tests
on
the
display
and
the
video
controller.
Chapter
3.
Diagnostics
51