Replacing A Raid Controller - IBM TotalStorage DS300 Hardware Installation And User's Manual

Figure 52. Inserting a DIMM into the connector
10. Install the RAID controller in the storage subsystem:
11. Reconnect the Ethernet cables that you removed in step 6 on page 70.
12. For a Fibre Channel RAID controller only: Install the SFP modules and the
13. For a storage subsystem with only one controller installed: Turn on the
14. For a storage subsystem with two controllers installed: Move the I/O data

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
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Hardware Installation and User's Guide
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.
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.
fiber-optic cables that you removed in step 7 on page 70.
power-supply switches on the rear of the storage subsystem.
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 70, 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.
DIMM installed. You must remove the cache battery and cache DIMM that are