Chapter
3.
Cabling
the
storage
server
This
chapter
provides
Fibre
Channel
and
power
cabling
information
for
the
storage
server.
After
you
attach
the
storage
server
power
cables,
use
the
instructions
that
are
provided
in
“Turning
the
storage
server
on
and
off”
on
page
45
for
the
initial
startup
of
the
storage
server.
Working
with
SFPs
and
fiber-optic
cables
Each
RAID
controller
CRU
contains
ports
for
SFP
modules
that
connect
to
the
fiber-optic
cables.
Two
of
the
SFP
ports
are
for
host
server
attachment.
On
the
DS4300
Model
60U/60X,
each
RAID
controller
also
has
an
additional
port
that
connects
DS4000
EXP
storage
expansion
enclosures
to
the
storage
server.
First,
insert
the
SFP
into
the
port,
and
then
a
insert
a
fiber-optic
cable
into
the
SFP.
The
other
end
of
the
fiber-optic
cable
connects
to
an
external
device.
Note
that
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.
Handling
fiber-optic
cables
Before
using
fiber-optic
cables,
read
the
following
precautions.
Attention:
To
avoid
damage
to
the
fiber-optic
cables,
follow
these
guidelines:
v
Do
not
route
the
cable
along
a
folding
cable-management
arm.
v
When
attaching
to
a
device
on
slide
rails,
leave
enough
slack
in
the
cable
so
that
it
does
not
bend
to
a
radius
of
less
than
38
mm
(1.5
in.)
when
extended
or
become
pinched
when
retracted.
©
Copyright
IBM
Corp.
2005
33
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