FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availability Planning Guide (AA-RS2DC-TE, June 2003)

Planning Considerations for Fibre Channel Topologies
64 SAN High Availability Planning Guide
Figure 24: Private device connectivity
Private devices only communicate with other devices on the same arbitrated
loop, and interconnected public and private devices can communicate with
each other. Such intermixed devices establish operating parameters and loop
topology configuration through a port login (PLOGI) command exchange,
rather than through the switch’s name server.
Be aware that public device-to-private device communication may cause
problems. For example, it is often critical to separate servers and storage
devices with different operating systems, because accidental transfer of
information from one to another can delete or corrupt data. Plan to implement
security provisions for the switch, such as partitioning attached devices into
restricted-access groups (zoning), providing server-level access control
(persistent binding), or providing storage-level access control. Refer to
“Security Provisions” on page 131 for additional information.