Replacing the SAN Volume Controller 2145-CF8 system board

All the components that were removed when you removed the system board are reused during the installation of the new system board.

Ensure that you have a monitor and USB keyboard available because they are required during this procedure. You also need a power cable so that you can turn on the node while it is out of the rack, if necessary.

You must remove and replace the microprocessor when you replace the system board. Ensure that you have alcohol wipes and thermal grease available to correctly perform this task.

Note: When you reassemble the components in the node, be sure to route all cables carefully so that they are not exposed to excessive pressure.

DANGER

Multiple power cords. The product might be equipped with multiple power cords. To remove all hazardous voltages, disconnect all power cords.

This service action assumes that:

The node is turned off.
The power cables are disconnected.
The top cover is removed.
The system board is removed.

Perform the following steps to install the system board:

Place the side of the system board assembly that is farther from the power supply units beneath the catches. Lower the opposite side of the system board until it is flat in the chassis. Align the rear connectors with the holes in the rear of the server and slide the system board towards the rear of the node, as shown in Figure 1.
Figure 1. Removing and replacing the SAN Volume Controller 2145-CF8 system board
- 1 System-board handle
- 2 Fan-assembly bracket
Grasp the fan assembly brackets and rotate them down toward the chassis.
Replace all of the cables that were removed previously.
Reinstall the hot-swap fans, as described in Replacing the SAN Volume Controller 2145-CF8 fans.
Reinstall the microprocessor and heat sink, as described in Replacing the SAN Volume Controller 2145-CF8 microprocessor.
Reinstall the DIMMs, as described in Replacing the memory modules (DIMM).
Reinstall the white plastic air baffles.
Reinstall the power supply units, as described in Replacing a SAN Volume Controller 2145-CF8 power supply.
Replace the disk-controller and USB riser-card assembly, as described in Replacing the SAN Volume Controller 2145-CF8 disk-controller and USB riser-card assembly.
Replace the optional high-speed SAS-adapter and riser-card assembly, as described in Replacing the SAN Volume Controller 2145-CF8 high-speed SAS adapter assembly.
Replace the fibre-channel adapter and riser card. See Replacing the fibre-channel adapter assembly.
Make sure that all cables, adapters, and other components are installed and seated correctly and that you have not left loose tools or parts inside the node. Make sure that all internal cables are correctly routed. If you disconnected the fibre-channel and Ethernet cables, make sure that each cable is reconnected to the same port from which it was removed.
Replace the top cover. See Replacing the top cover.
If you removed the node from the rack, replace the node in the rack, as described in Replacing the SAN Volume Controller in a rack.
If you removed any fibre-channel or Ethernet cables, use the labels you placed on each cable to replace all fibre-channel and Ethernet cables in the same ports from which they were removed.
If you removed the power cords, replace the power cords and the cable-retention brackets, as described in Replacing the cable-retention bracket.
Lift the locking levers ( 1 in Figure 2) on the slide rails and push the server 2 all the way into the rack until it clicks into place.
Figure 2. Raising the SAN Volume Controller 2145-CF8 locking levers of the slide rails of the rack
Turn on the node. Wait for the front panel display to remain stable for at least five minutes before taking any further action.
- 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.
- 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 using the SAN Volume Controller Console 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 for more information.
- If any other message is shown on the front panel, use MAP 5000: Start 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.
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:
1. Start the command-line interface (CLI). See Accessing the SAN Volume Controller CLI.
2. 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.
3. 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.
4. 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.