7.
Continue
to
press
the
Unload
Button
until
the
ten
error
codes
have
been
displayed.
After
you
display
the
tenth
error
code,
the
drive
automatically
exits
maintenance
mode.
To
redisplay
the
error
codes,
repeat
steps
1
through
7.
Resolving
Problems
Reported
by
the
Server
The
procedure
for
fixing
SCSI
bus
errors
varies,
depending
on
whether
the
error
is
consistent
or
intermittent,
and
whether
your
configuration
contains
single
or
multiple
drives.
The
sections
that
follow
describe
how
to
fix
each
type
of
error.
Fixing
SCSI
Bus
Errors
Note:
If
you
are
using
a
Storage
Area
Network
(SAN)
Data
Gateway
to
convert
a
drive
with
a
SCSI
interface
to
a
Fibre
Channel
interface,
ensure
that
the
problem
is
occurring
between
the
SAN
Data
Gateway
and
the
drive
by
running
the
SCSI
wrap
test
on
the
drive
and
running
the
SCSI
loopback
test
on
the
SAN
Data
Gateway.
(To
run
the
SCSI
wrap
test,
see
“Function
Code
6:
Run
SCSI
Wrap
Test”
on
page
20;
to
run
the
SCSI
loopback
test,
refer
to
the
section
about
that
test
in
the
IBM
Storage
Area
Network
Gateway
Module
Setup,
Operator,
and
Service
Guide
.)
Fixing
a
Consistent
Error
with
a
Single
Drive
on
a
SCSI
Bus:
1.
Ensure
that
the
power
is
on
to
the
drive.
2.
Ensure
that
the
drive’s
SCSI
address
is
the
same
as
the
SCSI
address
assigned
by
the
server.
3.
Run
the
SCSI
wrap
test
(see
“Function
Code
6:
Run
SCSI
Wrap
Test”
on
page
20).
v
If
the
test
fails,
replace
the
SCSI
terminator
first,
then
the
SCSI
cable
and
the
interposer
(if
installed).
Repeat
the
operation
that
caused
the
error.
If
you
replaced
the
SCSI
terminator
or
SCSI
cable
and
the
problem
persists,
the
fault
is
with
the
server’s
hardware
or
software.
To
isolate
the
cause
of
the
failure,
refer
to
the
server’s
service
documentation.
v
If
the
test
fails
again,
replace
the
drive.
v
If
the
test
is
successful,
refer
to
your
enclosure
documentation
for
additional
troubleshooting
information.
Fixing
a
Consistent
Error
with
Multiple
Drives
on
a
SCSI
Bus:
When
a
consistent
error
occurs
in
a
configuration
that
has
multiple
drives
on
the
SCSI
bus,
you
must
determine
if
the
problem
exists
with
more
than
one
drive.
If
the
problem
is
with
all
of
the
devices
on
the
SCSI
bus,
the
bus
is
stuck
in
a
SCSI
phase
and
cannot
change
to
another
phase
or
the
SCSI
cable
from
the
server
to
the
first
device
is
defective.
1.
Ensure
that
the
SCSI
cable
from
the
server
to
the
first
device
is
connected.
2.
Disconnect
all
but
the
first
drive
on
the
SCSI
bus.
Move
the
terminator
to
the
first
SCSI
device.
3.
Run
a
device
driver
utility
to
determine
whether
the
error
will
occur.
v
If
the
error
occurs,
run
the
SCSI
wrap
test
on
the
first
drive
(see
“Function
Code
6:
Run
SCSI
Wrap
Test”
on
page
20).
–
If
the
test
runs
successfully,
replace
the
SCSI
terminator
first,
then
the
SCSI
cable
and
the
interposer
(if
installed)
to
the
first
drive.
Repeat
the
operation
that
caused
the
error.
If
you
replaced
the
SCSI
terminator
or
50
IBM
400/800GB
LTO3
Tape
Drive
User’s
Guide
Summary of Contents for 39M5657
Page 1: ...IBM 400 800GB LTO3 Tape Drive User s Guide...
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Page 3: ...IBM 400 800GB LTO3 Tape Drive User s Guide...
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