Справочник Пользователя для IBM Ultra320
Determining
Your
Cable
Requirements
You
must
use
the
correct
SCSI
cables
to
properly
attach
SCSI
hard
disk
drives
and
subsystems.
If
you
install
an
Ultra320
SCSI
hard
disk
drive
or
subsystem
that
can
transfer
data
at
up
to
320
MB/s,
the
maximum
cable
length
is
limited
to
20
meters
(approximately
60
feet).
For
more
information
about
connecting
SCSI
hard
disk
drives
to
the
PCI-X
Dual
Channel
Ultra320
SCSI
RAID
Adapter,
see
and
refer
to
the
PCI-X
SCSI
RAID
Controller
Reference
Guide
for
AIX,
order
number
SA23-1323
or
PCI-X
SCSI
RAID
Controller
Reference
Guide
for
Linux,
order
number
SA23-1327.
Internal
Cabling
If
you
plan
to
install
internal
SCSI
hard
disk
drives,
you
must
obtain
the
necessary
cables
for
your
system
unit.
Refer
to
your
system
unit
documentation
for
information
about
installing
internal
SCSI
backplanes,
hard
disk
drives,
and
cables.
A
SCSI
terminator
must
be
located
at
the
end
of
the
internal
cable.
Terminators
are
built
into
the
backplane
within
the
computer.
External
Cabling
External
SCSI
hard
disk
drives
and
subsystems
have
a
variety
of
connectors.
Ensure
that
you
have
cables
with
the
correct
connectors
for
each
planned
external
SCSI
attachment.
To
externally
attach
hard
disk
drives
and
subsystems
to
the
PCI-X
Dual
Channel
Ultra320
SCSI
RAID
Adapter,
you
may
need
a
68-pin
SCSI
Very
High
Density
Connector
Interface
to
standard
68-pin
SCSI
standard
connector
interposer
cable.
In
most
cases,
the
cabling
is
delivered
with
the
attaching
subsystem.
4
PCI-X
Dual
Channel
Ultra320
SCSI
RAID
Adapter:
Installation
and
Using
Guide