Note:
Each
DS4300
controller
type
has
a
different
FRU
number,
as
follows:
DS4300
storage
subsystem
type
Controller
FRU
part
number
(P/N)
Single-controller
(Model
6LU/6LX)
24P8961
Dual-controller,
standard
(Model
60U/60X)
24P8059
Dual-controller,
Turbo
option
with
1-GB
memory
(Model
60U/60X)
24P8225
Important:
Please
note
the
following
information.
v
The
cache
battery
is
not
included
with
the
controller
FRU.
v
Ensure
that
you
replace
the
failed
controller
with
the
appropriate
FRU.
There
are
no
protection
mechanisms
to
block
out
an
incorrect
FRU
from
being
inserted
into
DS4300
controller
slots.
Unpredictable
results
can
occur
when
nonmatching
controller
FRUs
are
present
in
a
single
DS4300
chassis.
v
After
the
new
controller
in
a
DS4300
single-controller
storage
subsystem
(Model
6LU/6LX)
completes
the
boot
process,
its
WWNN
will
change.
If
you
have
any
applications
that
rely
on
the
previous
WWNNs,
such
as
FC
switch
zoning
definitions,
you
must
update
the
applications
with
the
new
WWNNs.
For
information
about
the
RAID
controller
cache
memory
and
rechargeable
battery,
see
“Cache
memory
and
RAID
controller
battery”
on
page
101.
Replacing
a
RAID
controller
When
instructed
to
do
so
by
the
storage-management
software,
replace
a
RAID
controller
that
has
failed.
Important:
The
replacement
RAID
controller
CRU
does
not
come
with
a
RAID
controller
cache
battery
installed,
nor
the
mounting
hardware
that
holds
the
battery
in
place
inside
the
RAID
controller.
You
must
remove
the
cache
battery
that
is
inside
the
existing
RAID
controller
that
you
are
replacing,
and
install
that
battery
inside
the
replacement
RAID
controller
CRU,
using
the
battery
unit
mounting
hardware
taken
from
the
existing
controller.
The
steps
to
remove
and
replace
the
battery
are
included
in
the
following
procedure.
Battery-access panel (on bottom)
Levers
Ethernet address label
Figure
97.
RAID
controller
levers
and
labels
Chapter
5.
Installing
and
replacing
components
135
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