IBM 17011RS Maintenance Manual - Page 62

Replacing, controller

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Figure 28. Inserting a DIMM into the connector e. Insert the DIMM into the connector by aligning the edges of the DIMM with the slots at the ends of the DIMM connector. Firmly press the DIMM into the connector by applying pressure on both ends of the DIMM simultaneously. The retaining clips snap into the locked position when the DIMM is firmly seated in the connector. If there is a gap between the DIMM and the retaining clips, the DIMM has not been correctly inserted; open the retaining clips, remove the DIMM, and then reinsert it. 10. Install the RAID controller in the storage subsystem: a. Make sure that the lever on each side of the controller is down as far as it will go. b. Push the controller into the bay until it meets resistance (approximately 6 mm [0.25 in.] from the end of the chassis). c. While squeezing together the latch and lever, push both latches up as far as they will go. The controller will slide the rest of the way into the bay. 11. Reconnect the Ethernet cables that you removed in step 6 on page 46. 12. For a Fibre Channel RAID controller only: Install the SFP modules and the fiber-optic cables that you removed in step 7 on page 46. 13. For a storage subsystem with only one controller installed: Turn on the power-supply switches on the rear of the storage subsystem. 14. For a storage subsystem with two controllers installed: Move the I/O data back to the original controller: a. Open a Telnet session and connect to the alternate controller management port IP address. If the Telnet session is open from step 5a on page 46, go to step 14d. b. At the command prompt, enter admin. c. Enter the administrator password. d. Enter controller peer enable. e. Enter controller info. Information about the controller is displayed on the screen. If the information shows that the peer controller status is Not Ready, repeat this step until the status is Ready. f. Enter array failback. The I/O data is moved back to the original controller. Replacing a RAID controller When instructed to do so by the ServeRAID Manager program, replace a RAID controller that has failed. Notes: 1. The replacement RAID controller does not come with a cache battery or cache DIMM installed. You must remove the cache battery and cache DIMM that are 48 IBM TotalStorage DS300 and DS400: Hardware Maintenance Manual

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e.
Insert
the
DIMM
into
the
connector
by
aligning
the
edges
of
the
DIMM
with
the
slots
at
the
ends
of
the
DIMM
connector.
Firmly
press
the
DIMM
into
the
connector
by
applying
pressure
on
both
ends
of
the
DIMM
simultaneously.
The
retaining
clips
snap
into
the
locked
position
when
the
DIMM
is
firmly
seated
in
the
connector.
If
there
is
a
gap
between
the
DIMM
and
the
retaining
clips,
the
DIMM
has
not
been
correctly
inserted;
open
the
retaining
clips,
remove
the
DIMM,
and
then
reinsert
it.
10.
Install
the
RAID
controller
in
the
storage
subsystem:
a.
Make
sure
that
the
lever
on
each
side
of
the
controller
is
down
as
far
as
it
will
go.
b.
Push
the
controller
into
the
bay
until
it
meets
resistance
(approximately
6
mm
[0.25
in.]
from
the
end
of
the
chassis).
c.
While
squeezing
together
the
latch
and
lever,
push
both
latches
up
as
far
as
they
will
go.
The
controller
will
slide
the
rest
of
the
way
into
the
bay.
11.
Reconnect
the
Ethernet
cables
that
you
removed
in
step
6
on
page
46.
12.
For
a
Fibre
Channel
RAID
controller
only:
Install
the
SFP
modules
and
the
fiber-optic
cables
that
you
removed
in
step
7
on
page
46.
13.
For
a
storage
subsystem
with
only
one
controller
installed:
Turn
on
the
power-supply
switches
on
the
rear
of
the
storage
subsystem.
14.
For
a
storage
subsystem
with
two
controllers
installed:
Move
the
I/O
data
back
to
the
original
controller:
a.
Open
a
Telnet
session
and
connect
to
the
alternate
controller
management
port
IP
address.
If
the
Telnet
session
is
open
from
step
5a
on
page
46,
go
to
step
14d.
b.
At
the
command
prompt,
enter
admin
.
c.
Enter
the
administrator
password.
d.
Enter
controller
peer
enable
.
e.
Enter
controller
info
.
Information
about
the
controller
is
displayed
on
the
screen.
If
the
information
shows
that
the
peer
controller
status
is
Not
Ready,
repeat
this
step
until
the
status
is
Ready.
f.
Enter
array
failback
.
The
I/O
data
is
moved
back
to
the
original
controller.
Replacing
a
RAID
controller
When
instructed
to
do
so
by
the
ServeRAID
Manager
program,
replace
a
RAID
controller
that
has
failed.
Notes:
1.
The
replacement
RAID
controller
does
not
come
with
a
cache
battery
or
cache
DIMM
installed.
You
must
remove
the
cache
battery
and
cache
DIMM
that
are
Figure
28.
Inserting
a
DIMM
into
the
connector
48
IBM
TotalStorage
DS300
and
DS400:
Hardware
Maintenance
Manual