Chapter 3. cabling the storage server, Working with sfps and fiber-optic cables, Handling fiber-optic cables – IBM Partner Pavilion DS4100 User Manual
Page 77: Chapter, Cabling, Storage, Server, Working, With, Sfps
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
for
the
initial
startup
of
the
storage
server.
Working
with
SFPs
and
fiber-optic
cables
Each
RAID
controller
has
two
host
ports
and
one
expansion
port.
You
use
a
small-form
factor
pluggable
transceiver
(SFP)
to
connect
each
host
port
and
expansion
port
to
hosts
and
expansion
units.
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.
Handling
fiber-optic
cables
Before
you
use
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.
v
Route
the
cable
away
from
places
where
it
can
be
snagged
by
other
devices
in
the
rack
cabinet.
©
Copyright
IBM
Corp.
2004
45