56 Implementing the IBM Storwize V7000 with IBM Spectrum Virtualize V8.2.1
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.