Connecting, External, Scsi – IBM Ultra320 User Manual
Page 20: Storage, Peripheral, Devices
Important
After
you
connect
the
card,
internal
cables,
and
backplane,
be
sure
to
record
which
set
of
hard
disk
drives
are
connected
to
channels
0
and
1.
The
management
software
identifies
the
physical
hard
disk
drives
by
channel
and
SCSI
ID.
To
properly
remove
or
add
physical
hard
disk
drives,
you
need
the
location
of
the
hard
disk
drive
that
was
removed
from
or
added
to
the
system.
5.
Return
the
system
to
the
operating
position
and
start
the
system
according
to
the
instructions
in
your
system
unit
documentation.
Connecting
External
SCSI
Storage
Peripheral
Devices
After
you
install
the
PCI-X
Dual
Channel
Ultra320
SCSI
RAID
Adapter
and
reinstall
the
cover
of
your
system
unit,
you
can
connect
the
external
storage
peripheral
devices.
This
adapter
has
two
68-pin
Very
High
Density
(VHD)
connectors.
If
you
are
using
a
regular
68-pin
cable,
you
may
need
an
interposer
cable.
Note:
Attachment
cables
are
usually
shipped
with
the
attaching
storage
peripheral
device.
To
connect
external
storage
peripheral
devices
using
the
VHD
interposer
cable,
do
the
following:
1.
Connect
the
68-pin
VHD
connector
of
the
interposer
cable
to
one
of
the
external
ports
(channel
0
or
1)
on
this
adapter.
Use
the
fastening
screws
on
the
cable
connector
to
securely
attach
the
connector
to
the
adapter.
2.
Connect
the
other
end
of
the
VHD
connector
to
the
SCSI
cable
going
to
your
external
storage
peripheral
device.
3.
Ensure
that
the
external
storage
peripheral
devices
and
system
unit
are
powered
on.
To
connect
external
storage
peripheral
devices
using
a
68-pin
Very
High
Density
Cable
Interconnection
connector,
do
the
following:
1.
Connect
one
end
of
the
68-pin
VHD
connector
to
one
of
the
external
ports
(channel
0
or
1)
on
this
adapter.
Use
the
fastening
screws
on
the
cable
connector
to
securely
attach
the
connector
to
the
adapter.
2.
Connect
the
other
end
of
the
68-pin
VHD
cable
to
your
external
storage
peripheral
device.
3.
Ensure
that
the
external
storage
peripheral
devices
and
system
unit
are
powered
on.
Notes:
v
The
SCSI
channels
0
and
1
should
never
be
interconnected.
Each
channel
must
operate
independently.
v
When
you
operate
with
more
than
one
adapter
in
a
system,
you
cannot
share
external
hard
disk
drives
between
the
adapters.
8
PCI-X
Dual
Channel
Ultra320
SCSI
RAID
Adapter:
Installation
and
Using
Guide