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Chapter
3.
Cabling
the
storage
subsystem
After
the
storage
subsystem
is
installed
in
its
permanent
location,
you
must
cable
it
to
hosts,
drives,
and
other
external
devices,
depending
on
your
hardware
configuration.
This
chapter
provides
fibre
channel
and
power
cabling
information
for
the
storage
subsystem.
It
also
provides
information
about
configuring
the
storage
subsystem.
This
chapter
addresses
the
following
cabling
and
configuration
topics:
v
v
v
v
v
v
v
Working
with
SFPs
and
fiber-optic
cables
Each
RAID
controller
has
four
single-ported
host
channel
connections
and
two
dual-ported
drive
channel
connections.
You
use
a
small-form
factor
pluggable
transceiver
(SFP)
to
connect
each
host
channel
port
and
drive
channel
port
to
hosts
and
storage
expansion
enclosures.
The
SFP
is
inserted
into
the
port,
and
then
a
fiber-optic
cable
is
inserted
into
the
SFP.
The
other
end
of
the
fiber-optic
cable
connects
to
an
external
device.
SFPs
are
laser
products.
Statement
3
CAUTION:
When
laser
products
(such
as
CD-ROMs,
DVD
drives,
fiber
optic
devices,
or
transmitters)
are
installed,
note
the
following:
v
Do
not
remove
the
covers.
Removing
the
covers
of
the
laser
product
could
result
in
exposure
to
hazardous
laser
radiation.
There
are
no
serviceable
parts
inside
the
device.
v
Use
of
controls
or
adjustments
or
performance
of
procedures
other
than
those
specified
herein
might
result
in
hazardous
radiation
exposure.
Danger
Some
laser
products
contain
an
embedded
Class
3A
or
Class
3B
laser
diode.
Note
the
following.
Laser
radiation
when
open.
Do
not
stare
into
the
beam,
do
not
view
directly
with
optical
instruments,
and
avoid
direct
exposure
to
the
beam.
©
Copyright
IBM
Corp.
2006,
2007
47
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