v
Power
cabling:
The
storage
expansion
enclosure
uses
two
standard
power
cables.
You
can
connect
the
power
cables
to
a
primary
power
unit
inside
the
rack
cabinet,
such
as
a
properly
grounded
ac
distribution
unit
or
uninterruptible
power
supply
(UPS).
You
can
also
connect
the
power
cable
to
an
external
source,
such
as
a
properly
grounded
electrical
outlet.
Installing
SFP
modules
The
storage
expansion
enclosure
requires
SFP
modules.
SFP
modules
are
used
to
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
will
use
fiber-optic
cables
to
connect
the
storage
expansion
enclosure
to
a
DS4000
storage
server.
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
storage
server.
Use
either
long-wave
SFPs
or
short-wave
SFPs.
You
can
use
the
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
FC
ports
in
the
FC
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
server).
v
The
SFP
module
housing
has
an
integral
guide
key
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
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:
Statement
3:
32
IBM
TotalStorage
DS4000
EXP700
and
EXP710
Storage
Expansion
Enclosures:
Installation,
User’s,
and
Maintenance
Guide
Summary of Contents for TotalStorage DS4000 EXP710
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