Removing the SAN Volume Controller 2145-8A4 disk-drive backplane

Use the following information to remove the SAN Volume Controller 2145-8A4 disk-drive backplane.

1. Read the safety precautions in Safety and environmental notices.
   
2. Turn off the node while ensuring that its data is mirrored and synchronized. See MAP 5350: Powering off a SAN Volume Controller node for more information.
   
3. Remove the cable-retention bracket and disconnect the power cable from the node. See Removing the cable-retention bracket.
   
4. Remove the node from the rack and place it on a flat, static-protective surface. See Removing the SAN Volume Controller from a rack.
   
5. Remove the service controller. See Removing the service controller.
   
6. Pull the hard disk drive out of the node slightly to disengage it from the back plate.
   
7. Remove the top cover. See Removing the top cover.
   
8. Notice where the two SATA cables that are connected to the back plate are connected to the system board, as shown in Figure 1. Then disconnect the two SATA cables from the system board.
   Figure 1. SAN Volume Controller 2145-8A4 SATA cable connectors
9. Rotate (lift) the air deflector out of the way, as shown in Figure 2.
   Figure 2. Air deflector for the SAN Volume Controller 2145-8A4 power supply
10. Slightly lift the back plate out of the node. Disconnect power cable connectors P2 and P3 , shown in Figure 3, and remove the back plate.
    Figure 3. SAN Volume Controller 2145-8A4 power supply connectors