McDATA StorageWorks 2/140 - Director Switch Planning Manual page 133

— When using inband director or switch management, either (or
both) of the FMS or OSMS features can be enabled. When
either (or both) features are enabled, the director or switch can
be set to open systems or FICON management style.
3. Upgrade fabric elements to a common feature set - Ensure a
common set of PFE-keyed optional features (refer to
Feature Keys) is installed on each fabric element. This reduces
errors due to director or switch incompatibility. In addition, the
SANtegrity Binding feature (with Enterprise Fabric Mode enabled)
is required to support FICON cascading.
4. Logically assign ports - To organize devices into manageable
groups for zoning, director or switch ports should be logically
assigned to FCP port groups and FICON port groups. Although
FICON devices can be zoned by device WWN, they must also be
assigned logical port addresses that correspond to the port
addresses configured by the attached host HCD. FICON devices
must be attached to these assigned ports. In addition, PDCM
arrays affect port connections at the hardware level, so a range of
port addresses must be established for FCP device use, and a
separate range of port addresses must be established for FICON
device use. FCP ports should always be configured to allow
communication with each other but disallow communication
with FICON ports, and vice versa.
5. Configure FICON cascading - Configure and enable FICON
cascading for all fabric elements. Refer to
Practices for instructions. As part of this step, ensure the
SANtegrity Binding feature key is installed and Enterprise Fabric
Mode enabled for all directors and switches.
— In conjunction with the SANtegrity Binding feature (fabric
and switch binding), consider enabling port binding from a
director or switch's Element Manager application. Port
binding explicitly defines (by WWN or nickname) the device
allowed to attach to a Fibre Channel port and provides
additional security when logically allocating ports to FCP and
FICON groups. Although this process creates additional
configuration overhead, port binding is useful for
implementations that require protection from accidental
misconfigurations.
Planning Considerations for Fibre Channel Topologies
Planning Considerations for Fibre Channel Topologies
FICON Cascading Best
3
Optional
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