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<img src='content_image/1007038.jpg'>

Note:  Figure 3-3 shows a single Fibre Channel cable going to the drive zones. However, generally you should have a second Fibre Channel cable for failover scenarios. This is the same reason why the zone that goes to the external storage unit has two Fibre Channel cables from 1 HBA on each server. 

This diagram should be used as a guide on how you would set up your own environment for best performances. This is one of many configurations. For instance, if you have more drives, you can add more tape drives per zone, or add more HBAs on each server and create a new zone. 

