Installing
SFP
modules
The
EXP100
requires
SFP
modules.
SFP
modules
convert
electrical
signals
to
optical
signals
that
are
required
for
Fibre
Channel
transmission
to
and
from
RAID
controllers.
After
you
install
the
SFP
modules,
you
use
fiber-optic
cables
to
connect
the
EXP100
to
a
DS4000.
Before
installing
SFP
modules
and
fiber-optic
cables,
read
the
following
information:
v
Do
not
mix
long-wave
SFPs
and
short-wave
SFPs
on
a
single
DS4000
storage
subsystem.
Use
either
long-wave
SFPs
or
short-wave
SFPs.
You
can
use
the
DS4000
Storage
Manager
client
to
view
the
Storage
Subsystem
Profile
in
order
to
verify
that
you
are
not
mixing
long-wave
and
short-wave
SFPs.
Attention:
In
addition,
do
not
use
long-wave
SFPs
or
GBICs
in
any
of
the
Fibre
Channel
ports
in
the
Fibre
Channel
drive
loops.
(Long-wave
SFPs
and
GBICs
are
not
supported
for
use
in
the
drive
ports
of
storage
expansion
enclosures.
Long-wave
SFPs
and
GBICs
are
only
supported
in
the
host
ports
of
the
DS4000
storage
subsystem).
v
The
SFP
module
housing
has
an
integral
guide
key
that
is
designed
to
prevent
you
from
inserting
the
SFP
module
improperly.
v
Use
minimal
pressure
when
inserting
an
SFP
module
into
an
SFP
port.
Forcing
the
SFP
module
into
a
port
could
cause
damage
to
the
SFP
module
or
to
the
port.
v
You
can
insert
or
remove
the
SFP
module
while
the
port
is
powered
on.
v
The
operational
or
redundant
loop
performance
is
not
affected
when
you
install
or
remove
an
SFP
module.
v
You
must
insert
the
SFP
module
into
a
port
before
you
connect
the
fiber-optic
cable.
v
You
must
remove
the
fiber-optic
cable
from
the
SFP
module
before
you
remove
the
SFP
module
from
the
port.
Refer
to
for
more
information.
Complete
the
following
steps
to
install
an
SFP
module:
Chapter
2.
Installing
the
EXP100
47
Summary of Contents for TotalStorage EXP100
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