Replacing the SAN Volume Controller 2145-CF8 disk-drive backplane

You can replace the SAN Volume Controller 2145-CF8 disk-drive backplane, which includes the SAS back plate.

1. Align the tabs on the disk-drive backplane with the slots on the backplane bracket.
2. Insert the disk-drive backplane tabs into slots on the backplane bracket and push the disk-drive backplane down until the backplane is fully seated and the tabs locked in place.

   You can reconnect the boot-disk cable to the connector on the left side (when viewed from the rear) of the back of the disk-drive backplane before installing the backplane onto the brackets, or you can connect the cable after you install the backplane, if that is easier for you.

   The other end of this cable attaches to the disk-controller and USB riser card assembly, as shown in Figure 2.

   If you are using solid-state drives (SSDs), you can connect the labelled end of the high-speed SAS cable to the connector in the middle of the back of the disk-drive backplane. The other end of this cable attaches to the high-speed SAS adapter at the rear of the node.

   Figure 1. The SAN Volume Controller 2145-CF8 disk backplane

   

   •  1  Disk-drive backplane
   •  2  Backplane tabs
   •  3  Backplane-bracket slots
3. Reconnect the cables to the disk-drive backplane.

   The boot-drive cable and the high-speed SAS-adapter cable are shown in Figure 2.

   Figure 2. Boot-disk SAS cable and the high-speed SAS cable connected to the disk backplane in the SAN Volume Controller 2145-CF8

   
   •  1  Boot-disk SAS cable that is plugged into the disk-drive backplane to support drive bay 4
   •  2  High-speed SAS-adapter cable that is plugged into the middle of the backplane to support drive bays 0, 1, 2, and 3
4. Reconnect the boot-disk SAS cable to the SAS disk controller.

   The boot-drive cable and the high-speed SAS-adapter cable are shown in Figure 3.

   Figure 3. Boot-disk SAS cable routed through the blue bulkhead clip and connected to the SAS disk controller in the SAN Volume Controller 2145-CF8

   
   •  1  Boot-disk SAS cable that is plugged into the disk-controller-and-USB-riser-card assembly
   •  2  Blue bulkhead clip with the high-speed SAS-adapter cable and the boot-disk SAS cable
5. Reinstall the fans, as described in Replacing the fans.
6. Reinstall the cover, as described in Replacing the top cover.
7. Reinstall the disk drives and drive-bay blank electromagnetic compatibility (EMC) filler assemblies, as described in Replacing the disk drive.
8. Replace the service controller, as described in Replacing the service controller.
9. 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.
   
10. 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.
    
11. If you removed the power cords, replace the power cords and the cable-retention brackets, as described in Replacing the cable-retention bracket.
    
12. Lift the locking levers ( 1  in Figure 4) on the slide rails and push the server  2  all the way into the rack until it clicks into place.
    Figure 4. Raising the SAN Volume Controller 2145-CF8 locking levers of the slide rails of the rack

    
13. Turn on the node.