Complete
the
following
steps
to
replace
an
SFP
module:
1.
Use
the
DS4200
Storage
Manager
client
software
to
a
new
storage
subsystem
profile.
2.
Using
the
Recovery
Guru,
identify
the
failed
component
that
needs
to
be
replaced.
3.
Check
the
Fault
LEDs
to
locate
the
failed
SFP
module.
If
a
fault
is
detected,
the
amber
Fault
LED
is
on.
Attention:
Potential
loss
of
data
access
-
To
prevent
loss
of
access
to
data,
remove
only
the
SFP
module
that
has
a
failed
status
in
the
storage
management
software
and
has
Port
Bypass
LED
lit.
4.
Put
on
antistatic
protection.
5.
Unpack
the
new
SFP
module.
Verify
that
it
is
the
same
type
of
module
you
are
replacing.
If
it
is
not,
contact
IBM
Customer
and
Technical
Support.
Attention:
v
The
speed
of
the
SFP
module
determines
the
maximum
operating
speed
of
the
fibre
channel
port
in
which
the
SFP
is
installed.
For
example,
a
2-Gbps
SFP
that
is
plugged
into
a
4-Gbps
capable
port
will
limit
the
speed
of
that
port
to
a
maximum
of
2
Gbps.
v
Handle
and
install
fiber-optic
cables
properly
to
avoid
degraded
performance
or
loss
of
communications
with
devices.
For
specific
handling
guidelines,
see
the
IBM
System
Storage
DS4200
Storage
Server
Installation,
User's
and
Maintenance
Guide
.
6.
Disconnect
the
interface
cables
from
the
SFP
module.
7.
Remove
the
failed
SFP
module
from
the
controller.
8.
Install
the
new
SFP
module
into
the
controller.
9.
Reconnect
the
interface
cable.
10.
Check
the
Bypass
and
Fault
LEDs
for
the
new
SFP
module.
11.
Based
on
the
status
of
the
Bypass
and
Fault
LEDs,
choose
one
of
the
following
steps:
v
Bypass
LED
or
Fault
LED
is
on
-
Reinstall
the
SFP
module
and
cables,
and
verify
that
the
SFP
module
and
cables
are
securely
connected.
Use
the
fibre
channel
loopback
and
the
LC-LC
connector
to
perform
path
diagnostics
to
Fiber-optic cable
(Host interface cable)
SFP
Transceiver
ESM Fault Light
ESM
Figure
39.
Replacing
an
SFP
module
Chapter
12.
Field
replacement
117
Summary of Contents for DR550
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