IBM 25R0012 User Guide - Page 40

Function

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3. Press and hold the Unload Button for three or more seconds, then release it to select the function. The SCD changes to a flashing C . 4. Insert a scratch (blank) data cartridge that is not write-protected (or the tape drive exits maintenance mode). The SCD changes to a flashing F . The tape drive runs the tests. Note: If you inserted an invalid or write-protected tape cartridge, 7 appears in the SCD. The tape drive unloads the cartridge and exits maintenance mode. v If no error is detected, the test will loop and begin again. To stop the loop, press the Unload Button for one second and release. When the loop ends, 0 temporarily appears in the SCD. The drive rewinds and unloads the tape, partially ejects the cartridge, then exits maintenance mode. The solid amber Status Light turns off. v If an error is detected, the Status Light flashes amber, the tape drive posts an error code to the SCD. To determine the error, locate the code in Table 9 on page 45. The tape drive unloads the cartridge and exits maintenance mode. To clear the error, turn the power off, then on again. Function Code H: Test Head Approximate Run Time = 10 minutes Total Number of Loops = 10 Function Code H performs tests to ensure that the tape drive's head and tape-carriage mechanics work correctly. The diagnostic loops ten times. To stop the diagnostic and exit maintenance mode, press the Unload Button once to abort the test. Attention For this test, insert only a scratch (blank) data cartridge or a cartridge that may be overwritten. During the test, the drive overwrites the data on the cartridge. 1. Place the drive in maintenance mode. For instructions, see "Entering Maintenance Mode" on page 15. 2. Press the Unload Button once per second until H appears in the SCD. (If you cycle past the desired code, press the Unload Button once per second until the code reappears.) 3. Press and hold the Unload Button for three or more seconds, then release it to select the function. The SCD changes to a flashing C . 4. Insert a scratch (blank) data cartridge that is not write-protected (or the tape drive exits maintenance mode). The SCD changes to a flashing H . The tape drive runs the tests. 24 IBM 400/800GB LTO3 Tape Drive User's Guide

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3.
Press
and
hold
the
Unload
Button
for
three
or
more
seconds,
then
release
it
to
select
the
function.
The
SCD
changes
to
a
flashing
C
.
4.
Insert
a
scratch
(blank)
data
cartridge
that
is
not
write-protected
(or
the
tape
drive
exits
maintenance
mode).
The
SCD
changes
to
a
flashing
F
.
The
tape
drive
runs
the
tests.
Note:
If
you
inserted
an
invalid
or
write-protected
tape
cartridge,
7
appears
in
the
SCD.
The
tape
drive
unloads
the
cartridge
and
exits
maintenance
mode.
v
If
no
error
is
detected,
the
test
will
loop
and
begin
again.
To
stop
the
loop,
press
the
Unload
Button
for
one
second
and
release.
When
the
loop
ends,
0
temporarily
appears
in
the
SCD.
The
drive
rewinds
and
unloads
the
tape,
partially
ejects
the
cartridge,
then
exits
maintenance
mode.
The
solid
amber
Status
Light
turns
off.
v
If
an
error
is
detected,
the
Status
Light
flashes
amber,
the
tape
drive
posts
an
error
code
to
the
SCD.
To
determine
the
error,
locate
the
code
in
Table
9
on
page
45.
The
tape
drive
unloads
the
cartridge
and
exits
maintenance
mode.
To
clear
the
error,
turn
the
power
off,
then
on
again.
Function
Code
H:
Test
Head
Approximate
Run
Time
=
10
minutes
Total
Number
of
Loops
=
10
Function
Code
H
performs
tests
to
ensure
that
the
tape
drive’s
head
and
tape-carriage
mechanics
work
correctly.
The
diagnostic
loops
ten
times.
To
stop
the
diagnostic
and
exit
maintenance
mode,
press
the
Unload
Button
once
to
abort
the
test.
Attention
For
this
test,
insert
only
a
scratch
(blank)
data
cartridge
or
a
cartridge
that
may
be
overwritten.
During
the
test,
the
drive
overwrites
the
data
on
the
cartridge.
1.
Place
the
drive
in
maintenance
mode.
For
instructions,
see
“Entering
Maintenance
Mode”
on
page
15.
2.
Press
the
Unload
Button
once
per
second
until
H
appears
in
the
SCD.
(If
you
cycle
past
the
desired
code,
press
the
Unload
Button
once
per
second
until
the
code
reappears.)
3.
Press
and
hold
the
Unload
Button
for
three
or
more
seconds,
then
release
it
to
select
the
function.
The
SCD
changes
to
a
flashing
C
.
4.
Insert
a
scratch
(blank)
data
cartridge
that
is
not
write-protected
(or
the
tape
drive
exits
maintenance
mode).
The
SCD
changes
to
a
flashing
H
.
The
tape
drive
runs
the
tests.
24
IBM
400/800GB
LTO3
Tape
Drive
User’s
Guide