2.
Links
are
initialized.
3.
Fabric
is
analyzed,
and
if
any
ports
are
connected
to
other
switches,
the
switch
participates
in
a
fabric
configuration.
4.
Switch
obtains
a
domain
ID
and
assigns
port
addresses.
5.
Unicast
routing
tables
are
constructed.
6.
Normal
port
operation
is
enabled.
Interpreting
POST
results
POST
is
a
system
check
that
is
performed
each
time
the
switch
is
powered
on,
rebooted,
or
reset,
and
during
which
the
LEDs
flash
amber
and
green.
Any
errors
that
occur
during
POST
are
listed
in
the
error
log.
To
determine
whether
POST
completed
successfully
and
whether
any
errors
were
detected:
1.
Verify
that
the
LEDs
on
the
switch
indicate
that
all
components
are
healthy
(see
the
tables
in
“LED
patterns”
on
page
23).
If
one
or
more
LEDs
do
not
display
a
healthy
state:
a.
Verify
that
the
LEDs
are
not
set
to
"beacon"
(this
can
be
determined
through
the
switchShow
command
or
Web
Tools).
For
information
about
how
to
turn
beaconing
on
and
off,
refer
to
the
Fabric
OS
Administrator’s
Guide
or
the
Web
Tools
Administrator’s
Guide
.
b.
Follow
the
recommended
action
for
the
observed
LED
behavior,
as
listed
in
the
tables
in
“LED
patterns”
on
page
23.
2.
Verify
that
the
switch
prompt
displays
on
the
terminal
of
a
computer
workstation
that
is
connected
to
the
switch.
If
the
prompt
does
not
display
when
POST
completes,
press
Enter
.
If
the
prompt
still
does
not
display,
open
another
Telnet
session
or
access
the
switch
through
another
management
tool.
If
this
is
not
successful,
the
switch
did
not
successfully
complete
POST;
contact
IBM
Service
for
repair.
3.
Review
the
switch
system
log
for
errors.
Any
errors
detected
during
POST
are
written
to
the
system
log,
which
is
accessible
through
the
errShow
command.
For
information
about
this
command,
refer
to
the
Fabric
OS
Command
Reference
.
For
information
about
error
messages,
refer
to
the
Fabric
OS
Message
Reference
.
Maintaining
the
switch
The
switch
does
not
require
any
regular
physical
maintenance
and
is
designed
for
high
availability
and
to
minimize
the
chance
of
failure.
To
help
prevent
failure
of
the
switch
due
to
distress
or
abuse,
ensure
that
the
environmental
conditions,
described
in
“Environment
considerations”
on
page
8,
are
met.
Other
maintenance
includes
diagnostic
tests
and
field-replaceable
units,
described
in
the
following
sections.
Installing
SFPs
The
switch
only
supports
Brocade-branded
SFPs.
If
you
use
an
unqualified
SFP,
the
switchShow
command
output
will
show
the
port
in
an
Mod_Inv
state.
Fabric
OS
will
also
log
the
issue
in
the
system
error
log.
Follow
these
instructions
to
install
an
SFP:
1.
Making
sure
that
the
bail
(wire
handle)
B
is
in
the
unlocked
position,
place
the
SFP
in
the
correctly
oriented
position
on
the
port,
as
shown
in
Figure
11
on
page
27
26
SAN40B-4
Installation,
Service,
and
User’s
Guide
Summary of Contents for SAN40B-4 - System Storage Switch
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