Removing the SAN Volume Controller 2145-8G4 disk-drive backplane

Use the following information to remove the SAN Volume Controller 2145-8G4 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. Disconnect the two blue signal cables from the system board, shown in Figure 1, and disconnect the power cable from the power supply backplane card.
   Figure 1. The SAN Volume Controller 2145-8G4 disk-drive backplane connectors

   
9. Press the locking tab , which is shown in Figure 2, and lift the back plate out of the node slightly. Disconnect the power cable and remove the back plate.
   Figure 2. The SAN Volume Controller 2145-8G4 SATA disk drive and back plate
   • Locking tab
   • Mounting channel