2
Left disk signal cable connector
3
Fan 1 connector
4
Fan 2 connector
14.
Replace the left disk drive cable in the front socket and the right disk drive cable in the rear socket.
15.
Replace the riser card that you removed from adapter slot 2. Push it into its connector.
16.
Replace the fibre-channel adapter and riser card. See “Replacing the fibre-channel adapter assembly”
on page 168.
17.
Replace the top cover. See “Replacing the top cover” on page 72.
18.
Place the node in the rack. See “Replacing the SAN Volume Controller in a rack” on page 48.
19.
Turn on the node. Wait for the front panel display to remain stable for at least five minutes before
taking any further action.
v
If the repair has been successful and if the node was able to save its state data before shutting
down, the node starts and rejoins the cluster. The front panel displays
Cluster:
and a cluster
name if the node has rejoined a cluster.
v
If the repair has been successful but the node was not able to save its state data before shutting
down, the node displays node error 578. Follow the procedures in "Deleting a node from a cluster"
in the
IBM System Storage SAN Volume Controller 2145 Troubleshooting Guide
to delete the node from
the cluster and then add it back into the cluster. If more than one node has failed, ensure that the
node is added back into its original I/O group. See "Adding a node to a cluster" in the
IBM
System Storage SAN Volume Controller 2145 Troubleshooting Guide
for more information.
v
If any other message is shown on the front panel, use MAP 5000 to resolve the problem.
Note:
It is essential that you perform all the stages of the next step to ensure that the replacement
system is set to the serial number of the original machine. Failure to do this might invalidate the
customer's warranty or service agreement.
20.
After you make sure that the node is operating as part of the cluster, perform the following steps to
restore the original machine serial number to the new system board:
a.
Start the command-line interface (CLI). See "Accessing the SAN Volume Controller CLI" in the
IBM System Storage SAN Volume Controller 2145 Troubleshooting Guide
.
b.
Write down the 7-character serial number from the serial number label that is on the front of the
node. Ignore any hyphens (-) in the serial number.
c.
On the front-panel display, press and release the down button until the Node panel is displayed.
Write down the node name that is shown on the bottom line.
d.
Issue the following command, substituting the values for
nodeserialnumber
and
nodename
that you
wrote in the previous steps:
svctask writesernum -sernum
nodeserialnumber nodename
where
nodeserialnumber
is the serial number on the front of the node and
nodename
is the name of
the node.
For example, to write the machine serial number to the system board when the serial number is
“13-FEDCB” and the node name is “ZYXW3,” you would issue the following command:
svctask writesernum –sernum
13FEDCB ZYXW3
Note:
The node will restart as soon as the serial number has been written to it.
Removing the redundant ac-power switch
Use this topic when you need to remove a redundant ac-power switch.
Chapter 2. Removing and replacing parts
267
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