switch
must
be
compatible
with
the
drive’s
SCSI
ID
connector
and
must
make
an
electrical
connection
between
the
same
pins
as
the
jumpers
to
achieve
the
same
corresponding
SCSI
ID.
Setting
the
SCSI
ID
through
the
LDI
Interface
If
the
drive
is
being
installed
into
a
tape
library,
a
command
can
be
issued
from
the
library
to
set
the
drive’s
SCSI
ID
through
the
LDI
interface.
Make
sure
that
the
SCSI
ID
is
set
to
15
(see
Figure
7
on
page
15).
When
configured
to
accept
its
SCSI
ID
through
the
LDI
interface,
the
drive
does
not
respond
to
SCSI
commands
until
it
receives
a
SET
™
CONFIGURATION
command
through
the
interface.
Supplying
TERMPOWER
(SCSI
Drive
Only)
To
supply
TERMPOWER
to
the
bus,
locate
one
of
the
five
jumpers
shipped
with
the
drive
and
place
it
on
the
SCSI
ID
connector
as
shown
in
the
following
figure.
Place
the
jumper
on
the
pins
that
are
shaded.
A67E0049
Attention
SCSI
termination
must
be
provided
externally
to
the
drive.
Setting
the
Arbitrated
Loop
Physical
Address
(Fibre
Channel
Drive
Only)
Each
device
on
a
Fibre
Channel
loop
must
have
an
Arbitrated
Loop
Physical
Address
(AL_PA)
to
communicate.
The
AL_PA
identifies
the
device
on
the
loop.
To
set
the
drive’s
AL_PA,
you
must
place
jumpers
on
specific
pins
in
the
drive’s
loop
identifier
(LID)/status
connector.
The
placement
of
the
jumpers
indicates
whether
you
want
to
choose
the
LID
yourself
(each
LID
corresponds
to
a
specific
AL_PA)
or
whether
you
want
the
drive
to
choose
the
AL_PA
by
arbitrating
it
with
other
devices
on
the
loop.
Valid
LIDs
and
their
corresponding
AL_PAs
are
provided
in
this
section.
Note:
A
Loop
ID
is
part
of
a
contiguous
range
of
values;
valid
AL_PA
values
are
not
in
a
contiguous
range.
In
addition
to
establishing
the
AL_PA,
by
moving
Feature
Switch
3
on
the
drive
to
ON
or
off
you
can
set
the
drive
so
that
it
provides
one
of
the
following
functions:
v
Status
about
the
Fibre
Channel
loop
(through
the
use
of
external
indicators
in
an
enclosure)
v
Additional
LIDs
The
sections
that
follow
describe
how
to
select
the
AL_PA.
They
also
describe
how
to
set
Feature
Switch
3
so
that
the
drive
gives
status
about
the
loop
or
provides
additional
LIDs.
Setting
the
Loop
ID
to
Provide
Status
About
the
Loop
If
Feature
Switch
3
on
the
drive
is
set
to
OFF
(see
1
in
Figure
8
on
page
17),
the
LID/status
connector
2
has
the
following
definition:
v
Pins
1,
2,
3,
4,
7,
and
8
are
inputs
and
are
used
to
set
the
LID.
v
Pins
5
and
6
are
used
as
outputs:
16
IBM
TotalStorage
Ultrium
Tape
Drive
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Содержание TotalStorage Ultrium T800
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