text: Figure 3-4 Overview of four-path host zoning 
  
  When possible, use the minimum number of paths that are necessary to achieve a sufficient 
  level of redundancy. For the Storwize V7000 environment, no more than four paths per I/O 
  Group are required to accomplish this layout. 
  
  All paths must be managed by the multipath driver on the host side. Make sure that the 
  multipath driver on each server can handle the number of paths required to access all 
  volumes mapped to the host. 
  
  For hosts that use four HBAs/ports with eight connections to an I/O Group, use the zoning 
  schema that is shown in Figure 3-5 on page 57. You can combine this schema with the 
  previous four-path zoning schema. 