battery
access
panel
toward
the
back
until
you
can
reinsert
the
screw
that
holds
the
battery
access
panel
to
the
RAID
controller
bottom
panel.
Do
not
overtighten.
19.
You
must
reconnect
the
battery
harness
to
the
two-pin
connector
on
the
controller
board.
Note:
The
connector
is
keyed
so
that
there
is
only
one
way
to
attach
the
harness
to
the
connector.
Do
not
force
fit.
20.
Flip
the
RAID
controller
bottom
panel
over
and
carefully
place
it
on
the
controller
sides.
Push
the
RAID
controller
bottom
panel
toward
the
front
to
latch
it
to
the
side
panels.
If
the
controller
bottom
panel
is
placed
correctly,
you
should
be
able
to
access
the
mounting
holes
for
the
six
screws
that
you
removed
from
step
6
on
page
138.
Reinsert
the
six
screws.
Do
not
overtighten.
21.
Install
the
new
RAID
controller,
as
follows:
a.
Slide
the
RAID
controller
all
the
way
into
the
empty
slot.
b.
Close
both
levers
until
the
latch
locks
into
place.
Attention:
When
you
replace
the
failed
RAID
controller,
the
storage-management
software
automatically
synchronizes
the
firmware
between
the
existing
controller
and
the
new
controller.
After
you
replace
a
controller,
always
use
the
storage-management
software
to
verify
the
firmware
levels
and
NVSRAM
files.
22.
Insert
the
SFPs
according
to
the
instructions
in
“Installing
SFP
modules”
on
page
33.
23.
Connect
the
fibre-channel
cables
to
their
original
locations,
according
to
the
instructions
in
Chapter
3,
“Cabling
the
storage
subsystem,”
on
page
29.
24.
Wait
approximately
one
minute,
and
then
check
the
green
Host
Loop
LED,
green
Expansion
Loop
LED,
and
amber
Fault
LED
on
the
new
RAID
controller.
v
If
the
Host
Loop
LED
or
the
Expansion
Loop
LED
is
off,
the
RAID
controller
might
not
be
inserted
correctly.
Remove
the
CRU
and
reinsert
it.
v
If
the
Fault
LED
is
on,
the
Host
Loop
LED
and
the
Expansion
Loop
LED
stay
off,
or
any
other
Fault
LED
is
on,
see
the
Storage
Manager
client
for
problem
determination,
or
contact
IBM
support.
25.
See
the
Storage
Manager
client
online
Help
for
instructions
on
bringing
the
controller
online.
Replacing
the
battery
in
the
RAID
controller
Each
RAID
controller
contains
a
rechargeable
battery
that
maintains
the
data
in
the
cache
memory
for
three
days
without
power
to
the
unit.
Important:
If
you
are
replacing
the
battery
in
a
DS4300
single-controller
storage
subsystem
(Model
6lU/6LX),
complete
the
following
steps
before
beginning
the
replacement
procedure:
v
Schedule
down
time
for
the
battery
replacement,
because
the
disk
will
not
be
available
during
the
procedure.
v
Complete
any
necessary
server
preparation
tasks.
v
Save
the
configuration/profile.
v
Use
the
Storage
Manager
client
to
flush
and
disable
the
cache
on
the
controller,
using
the
following
steps.
Either
check
that
the
cache
LED
on
the
back
of
the
controller
is
off,
or
wait
two
to
three
minutes.
140
IBM
TotalStorage
DS4300
Fibre
Channel
Storage
Subsystem:
Installation,
User’s,
and
Maintenance
Guide
Содержание TotalStorage DS4300 Turbo
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