Replacing the disk-drive backplane: 2145-DH8

You can replace the SAN Volume Controller 2145-DH8 disk-drive backplane, which includes the SAS backplane.

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)

or

or

This service action assumes that the following conditions exist:

• 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 cover is removed.

To replace the SAN Volume Controller 2145-DH8 disk-drive backplane, complete the following steps:

Figure 1. The 2145-DH8 disk drive backplane

1. Connect the power and signal cables to the replacement backplane.
2. Align the backplane with the backplane slot in the chassis and the small slots on top of the hard disk drive cage.
3. Lower the backplane into the slots on the chassis.
4. Rotate the top of the backplane until the front tab clicks into place into the latches on the chassis.
5. Reinstall the fans if you removed them.
6. Reinstall the cover.
7. Reinstall the disk drives and drive-bay blank electromagnetic compatibility (EMC) filler assemblies.
8. Replace the service controller.
9. If you removed the node from the rack, replace the node in the rack.
10. If you removed any Fibre Channel or Ethernet cables, use the labels on each cable to replace them in the same ports from which they were removed.
11. If you removed the power cords, replace the power cords.
12. 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 2145-DH8 locking levers of the slide rails of the rack

    
13. Turn on the node.