IBM 8480 Hardware Maintenance Manual - Page 56

Cabling, adapter, single, channel, using, hot-swap, drive, backplane

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Cabling a RAID adapter or single SCSI channel using one hot-swap drive SCSI backplane You can install an optional RAID adapter in your server to control the internal hot-swap hard disk drives. The illustrations in this section show the cabling for internal hot-swap hard disk drives. You can also cable a RAID adapter to external hard disk drives. See your RAID adapter option documentation for complete instructions for installing a RAID adapter in your server and for additional information about RAID adapters. One end of the SCSI cable is attached to the connector on the standard SCSI backplane, and the other end is attached to the internal SCSI channel connector on the PCI extender board or RAID adapter. If you are connecting the server to more than two SCSI channels, you might need to purchase additional SCSI cables. Consult your IBM marketing representative or reseller for additional information about the number and types of cables that your server configuration requires. The following procedure describes the single-channel cable routing that is necessary when you install a RAID adapter. The illustrations in this section are examples. The cabling that you use for your server depends on your system configuration. Notes: 1. See the documentation that comes with your adapter for any cabling instructions. 2. Cable identifiers are printed on the cables that come with your server and options. Use these identifiers to connect the cables to the correct connectors. For example, the hard disk drive cables are labeled "HDD option." Complete the following steps to cable a single SCSI channel on an installed RAID adapter using the standard hot-swap drive SCSI backplane: 1. Determine the number of SCSI channels that you want to use on the RAID adapter. 2. Review the information in "Installation guidelines" on page 37 and "Safety information" on page 119. 3. Turn off the server and peripheral devices and disconnect all power cords and external cables; then, remove the side cover (see "Removing the side cover" on page 40). 4. If your server comes with a SCSI connector on the PCI extender board, disconnect the SCSI cable from the internal SCSI connector on the PCI extender board. Attention: When you route the SCSI cable, observe these precautions: v Do not block the ventilated space in front of the fan assembly. v Do not route the SCSI cable over the memory board assembly. 46 IBM xSeries 205 Type 8480: Hardware Maintenance Manual and Troubleshooting Guide

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Cabling
a
RAID
adapter
or
single
SCSI
channel
using
one
hot-swap
drive
SCSI
backplane
You
can
install
an
optional
RAID
adapter
in
your
server
to
control
the
internal
hot-swap
hard
disk
drives.
The
illustrations
in
this
section
show
the
cabling
for
internal
hot-swap
hard
disk
drives.
You
can
also
cable
a
RAID
adapter
to
external
hard
disk
drives.
See
your
RAID
adapter
option
documentation
for
complete
instructions
for
installing
a
RAID
adapter
in
your
server
and
for
additional
information
about
RAID
adapters.
One
end
of
the
SCSI
cable
is
attached
to
the
connector
on
the
standard
SCSI
backplane,
and
the
other
end
is
attached
to
the
internal
SCSI
channel
connector
on
the
PCI
extender
board
or
RAID
adapter.
If
you
are
connecting
the
server
to
more
than
two
SCSI
channels,
you
might
need
to
purchase
additional
SCSI
cables.
Consult
your
IBM
marketing
representative
or
reseller
for
additional
information
about
the
number
and
types
of
cables
that
your
server
configuration
requires.
The
following
procedure
describes
the
single-channel
cable
routing
that
is
necessary
when
you
install
a
RAID
adapter.
The
illustrations
in
this
section
are
examples.
The
cabling
that
you
use
for
your
server
depends
on
your
system
configuration.
Notes:
1.
See
the
documentation
that
comes
with
your
adapter
for
any
cabling
instructions.
2.
Cable
identifiers
are
printed
on
the
cables
that
come
with
your
server
and
options.
Use
these
identifiers
to
connect
the
cables
to
the
correct
connectors.
For
example,
the
hard
disk
drive
cables
are
labeled
“HDD
option.”
Complete
the
following
steps
to
cable
a
single
SCSI
channel
on
an
installed
RAID
adapter
using
the
standard
hot-swap
drive
SCSI
backplane:
1.
Determine
the
number
of
SCSI
channels
that
you
want
to
use
on
the
RAID
adapter.
2.
Review
the
information
in
“Installation
guidelines”
on
page
37
and
“Safety
information”
on
page
119.
3.
Turn
off
the
server
and
peripheral
devices
and
disconnect
all
power
cords
and
external
cables;
then,
remove
the
side
cover
(see
“Removing
the
side
cover”
on
page
40).
4.
If
your
server
comes
with
a
SCSI
connector
on
the
PCI
extender
board,
disconnect
the
SCSI
cable
from
the
internal
SCSI
connector
on
the
PCI
extender
board.
Attention:
When
you
route
the
SCSI
cable,
observe
these
precautions:
v
Do
not
block
the
ventilated
space
in
front
of
the
fan
assembly.
v
Do
not
route
the
SCSI
cable
over
the
memory
board
assembly.
46
IBM
xSeries
205
Type
8480:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide