Cabling between the partner filer and disk shelf 0

Channel B loop cabling between an F740 and disk shelf 0

F740 with FC7/FC8 disk shelves

This configuration has three FC-AL interfaces in each filer, with two FC-AL interfaces on the local filer (filer on the left) labeled Channel A and one FC-AL interface labeled Channel B. On the partner filer (filer on the right), there are two FC-AL interfaces labeled Channel B and one FC-AL interface labeled Channel A.

The dashed blue line in this figure between the disk shelves on the left and the partner filer on the right illustrates the first completed Channel B loop in this cluster.

The dashed red line in this figure between the disk shelves in the middle and the partner filer on the right illustrates the second completed Channel B loop in this cluster.

The dashed green line in this figure between the disk shelves on the lower right and the local filer on the left illustrates the third completed Channel B loop in this cluster.

F740 with FC9 disk shelves

This configuration has three FC-AL interfaces in each filer. The local filer (filer on the left) has two Channel A FC-AL interfaces and one Channel B FC-AL interface. The partner filer (filer on the right) has two Channel B FC-AL interfaces and one Channel A FC-AL interface.

The dashed blue line in this figure between the disk shelves on the left and the partner filer illustrates the first completed Channel B loop in this cluster.

The dashed red line in this figure between the disk shelves in the middle and the partner filer illustrates the second completed Channel B loop in this cluster.

The dashed green line in this figure between the disk shelves on the lower right and the local filer illustrates the third completed Channel B loop in this cluster.