v
Four
indicator
lights
on
a
mini-hub
provide
status
information.
If
an
SFP
module
fails,
the
corresponding
SFP
port
bypass
indicator
will
be
lit
on
the
mini-hub.
For
more
information
about
indicator
lights,
see
“Mini-hub
indicator
lights”
on
page
33.
v
If
you
replace
the
SFP
module
and
still
experience
problems,
the
DS4400
Storage
Server
might
have
defective
components
or
connections.
Check
the
storage-management
software
for
indications
of
other
component
failures.
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
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.
Replacing
a
failed
SFP
module
When
instructed
by
the
storage-management
software,
complete
the
following
steps
to
replace
an
SFP
module
from
the
mini-hub.
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.
Attention:
To
avoid
damage
to
the
cable
or
SFP
module,
make
sure
you
remove
the
LC-LC
Fibre
Channel
cable
before
you
remove
the
SFP
module.
1.
Remove
the
LC-LC
Fibre
Channel
cable
from
the
SFP
module
that
has
failed.
For
more
information,
see
“Handling
fiber-optic
cables”
on
page
5
and
“Removing
an
LC-LC
Fibre
Channel
cable”
on
page
10.
2.
Replace
the
protective
caps
on
the
LC-LC
Fibre
Channel
cables.
Chapter
3.
Replacing
DS4400
Storage
Server
components
59
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