FW V06.XX/HAFM SW V08.02.00 HP StorageWorks SAN High Availability Planning Guide (AA-RS2DD-TE, July 2004)

Planning Considerations for Fibre Channel Topologies
118 SAN High Availability Planning Guide
—On the Configure Allow/Prohibit Matrix - Active dialog box, assigning
port names to logical port addresses is another practice that should be
followed. For example, the port name for all FCP devices could begin
with FCP or OS to indicate the associated port addresses attached to
open-systems devices. This information emphasize which ports are FCP
ports and which are FICON ports, and gives a user the ability to better
manage the connectivity matrix.
— Caution should be exercised when using a PDCM array to prohibit E_Port
connectivity. For additional information, refer to “PDCM Arrays” on
page 149.
7. Configure zoning — Well-behaved intermix environments require the
creation of separate zones for FCP and FICON devices. Group all FICON
devices into one zone, and then group FCP devices into multiple zones in
traditional fashion to facilitate typical open-systems communication.
— Be aware that FICON devices do not use the Fibre Channel name server,
therefore name server-based zoning does not affect FICON connectivity.
However, the name server does affect distribution of registered state
change notification (RSCN) service requests to FICON devices. If a
FICON device is not in the same zone as other devices, state changes are
not properly communicated.
— All FICON devices must be included in the same zone to facilitate proper
state change notification. This is achieved by creating a unique FICON
zone or using the default zone. It is best to disable the default zone and
explicitly create a unique zone for all FICON devices. Regardless of the
director or switch operating mode, FCP devices must be zoned in the
traditional fashion, and FICON devices must be zoned to provide
isolation from the FCP devices. All FICON devices must be included in
the same zone to facilitate proper state change communication.
— When establishing a zoning configuration, FICON devices must be
assigned to director or switch port addresses that correspond to port
HCD-assigned address definitions configured by the attached host.
Associated FICON devices must be connected to the ports as configured.
— Note the reciprocal nature of zoning configurations and PDCM arrays.
When configuring zoning, all FICON devices are placed in one zone and
FCP devices are zoned normally. When configuring definitions in a
PDCM array, all FCP devices are configured to allow communication
only with each other, and FICON devices are configured normally.