Replacing the battery backplane and cables: 2145-SV1

You can replace the battery backplane and cables in a SAN Volume Controller 2145-SV1 node.

Before you begin

DANGER

Multiple power cords. The product might be equipped with multiple power cords. To remove all hazardous voltages, disconnect all power cords. (L003)

This service action assumes:

• The node is turned off. If you must turn off the node, ensure that hosts will not lose access to data in volumes, as described in MAP 5350: Powering off a node.
• The power cables are disconnected.
• The top covers are removed.
• The batteries are removed.
• The PCI express riser assemblies (1,2) and the air baffle are removed, if the battery backplane LPC cable must be replaced.

About this task

To replace the SAN Volume Controller 2145-SV1 battery backplane and the attached cables, complete the following steps. It is easier to connect all cables, except for the power cable, to the battery backplane before the backplane is fitted. Figure 1 shows the backplane and the cable connectors on the main board.

Figure 1. 2145-SV1 battery backplane and cable connectors

•  1  Low Pin Count (LPC) cable connector on the main board
•  2  Battery backplane power sense cable connector on the main board
•  3  Battery backplane power cable connector on the main board
•  4  Battery backplane power sense cable connector on the battery backplane
•  5  Battery backplane power cable connector on the battery backplane
•  6  Battery backplane LPC cable connector on the battery backplane

1. Attach the battery backplane LPC cable to the main board, if needed, as shown in Figure 2.
   Figure 2. 2145-SV1 battery backplane LPC cable
   
2. Attach the battery backplane LPC cable to the battery backplane, as shown in Figure 2.
3. Attach the battery backplane power sense cable to the main board, if needed, as shown in Figure 3.
   Figure 3. 2145-SV1 battery backplane power sense cable

   
4. Attach the battery backplane power sense cable to the battery backplane, as shown in Figure 3.
5. Attach the battery backplane power cable to the main board, if needed, as shown in Figure 4.
   Figure 4. 2145-SV1 battery backplane power cable

   
6. Fit the lower edge of the battery backplane into the chassis. Push the top into position until it locks in place, as shown in Figure 5.
   Figure 5. Battery backplane in the 2145-SV1 chassis

   
7. Connect the end of the power cable to the battery backplane.
8. If needed, replace the air baffle, as described in Replacing the air baffle: 2145-SV1.
9. If needed, replace the PCI express riser card assemblies in the original order, as described in Replacing a PCI express riser-card assembly: 2145-SV1.
10. Replace the top covers, as described in Replacing the top covers: 2145-SV1.
11. If you removed the node from the rack, replace it, as described in Replacing a node in a rack: 2145-SV1.
12. Reconnect any signal cables.
13. Turn on the node by reconnecting both power cords.