HP Brocade 8/12c FICON Administrator's Guide v6.4.0 (53-1001771-01, June 2010) - Page 52

Platforms supporting FICON extension over IP, FCIP configuration requirements for FICON extension

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4 FCIP configuration requirements for FICON extension FIGURE 12 Tape Read Pipelining Platforms supporting FICON extension over IP Fabric OS supports SAN extension between Brocade 7500 storage routers, or between FR4-18i blades. The Brocade 7500 and the FR4-18i blade both have 16 physical Fibre Channel ports and 2 physical GbE ports. FCIP configuration requirements for FICON extension FICON extension uses FCIP for transport. FCIP interfaces and tunnels used for FICON extension must be defined prior to configuring FICON emulation. Ports should remain persistently disabled until after FICON emulation is configured. Refer to Fibre Channel over IP Administrator's Guide for information about configuring FCIP interfaces, tunnels, and circuits. Configuration requirements for switches and directors There are three configuration issues to consider when a SAN router is connected to a switch in a FICON configuration: • Ensure enough buffer credits are configured to support extending the FICON channel over distance. • If you are creating a cascaded configuration (connecting two switches or directors with different domain IDs), be aware of IBM requirements for high integrity fabrics. • In configurations with ISLs, ensure that ISL paths are properly configured to meet FICON emulation requirements for a determinate path for FICON commands and responses. 40 FICON Administrator's Guide 53-1001771-01

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40
FICON Administrator’s Guide
53-1001771-01
FCIP configuration requirements for FICON extension
4
FIGURE 12
Tape Read Pipelining
Platforms supporting FICON extension over IP
Fabric OS supports SAN extension between Brocade 7500 storage routers, or between FR4-18i
blades. The Brocade 7500 and the FR4-18i blade both have 16 physical Fibre Channel ports and 2
physical GbE ports.
FCIP configuration requirements for FICON extension
FICON extension uses FCIP for transport. FCIP interfaces and tunnels used for FICON extension
must be defined prior to configuring FICON emulation. Ports should remain persistently disabled
until after FICON emulation is configured. Refer to
Fibre Channel over IP Administrator’s Guide
for
information about configuring FCIP interfaces, tunnels, and circuits.
Configuration requirements for switches and directors
There are three configuration issues to consider when a SAN router is connected to a switch in a
FICON configuration:
•
Ensure enough buffer credits are configured to support extending the FICON channel over
distance.
•
If you are creating a cascaded configuration (connecting two switches or directors with
different domain IDs), be aware of IBM requirements for high integrity fabrics.
•
In configurations with ISLs, ensure that ISL paths are properly configured to meet FICON
emulation requirements for a determinate path for FICON commands and responses.