Cabling Node B to DS14mk2 or DS14mk4 disk shelves
To cable Node B, you must use the Fibre Channel ports you previously identified and cable the disk shelf loops owned by the node to these ports.
- This procedure uses multipath HA, required on all systems.
- This procedure does not apply to SAS disk shelves.
For cabling SAS disk shelves in an HA pair , see the Universal SAS and ACP Cabling Guide.
Review the cabling diagram before proceeding to the cabling steps.
- The circled numbers in the diagram correspond to the step numbers in the procedure.
- The location of the Input and Output ports on the disk shelves vary depending on the disk shelf models.
Make sure that you refer to the labeling on the disk shelf rather than to the location of the port shown in the diagram.
- The location of the Fibre Channel ports on the controllers is not representative of any particular storage system model; determine the locations of the ports you are using in your configuration by inspection or by using the Installation and Setup Instructions for your model.
- The port numbers refer to the list of Fibre Channel ports you created.
- The diagram only shows one loop per node and one disk shelf per loop.
Your installation might have more loops, more disk shelves, or different numbers of disk shelves between nodes.
- Cable Port B1 of Node B to the Channel B Input port of the first disk shelf of Node A loop 1. Both channels of this disk shelf are connected to the same port on each node. This is not required, but it makes your HA pair easier to administer because the disks have the same ID on each node. This is true for Step 5 also.
- Cable the disk shelf Channel B Output port to the Channel B Input port of the next disk shelf in loop 1.
- Repeat Step 3 for any remaining disk shelves in loop 1.
- Cable the Channel B Output port of the last disk shelf in the loop to Fibre Channel port A4 of Node A. This provides the redundant multipath HA connection for Channel B.
- Cable Fibre Channel port B2 of Node B to the Channel A Input port of the first disk shelf of Node B loop 1.
- Cable the disk shelf Channel A Output port to the Channel A Input port of the next disk shelf in loop 1.
- Repeat Step 7 for any remaining disk shelves in loop 1.
- Cable the Channel A Output port of the last disk shelf in the loop to Fibre Channel port A3 of Node A. This provides the redundant multipath HA connection for Channel A.
- Repeat Steps 2 to 9 for each pair of loops in the HA pair , using ports 3 and 4 for the next loop, ports 5 and 6 for the next one, and so on.
Node B is completely cabled.