HP StorageWorks Fabric OS 6.x administrator guide (5697-7344, March 2008)

264 Administering FICON fabrics
Supported switches
FICON protocol is supported on the following HP StorageWorks models: DC SAN Backbone Director,
short name, DC Director (FC8-16, FC8-32 port blades, FR4-18i FCIP blade and FC10-6 10 Gbit/sec port
blade for ISL connections), the 4/256 SAN Director (FC4-16, FC4-32 port blades, FR4-18i FCIP blade and
FC10-6 10 Gbit/sec port blade for ISL connections), SAN Switch 4/32, 4/64 SAN Switch and SAN
Switch 4/32B switches. The 400 MP Router and FR4-18i blade (for the 4/256 SAN Director) provide
FICON over IP extension. The 400 MP Router and FR4-18i blade (for the 4/256 SAN Director) also
support direct FICON device switching in a single hop FICON configuration. The FC10-6 is supported for
10 Gbit/sec ISL links.
The following port blades can exist in a FICON environment; however, FICON device connection to ports
on these blades is not supported:
FC4-16IP
FC4-48
FC8-48
NOTE: The FC4-48 and FC8-48 port blades are not supported for connecting to System z environments
through FICON channels or through FCP zLinux on System z.
In an Admin Domain-enabled fabric, you should put all of the ports on the FC4-48, FC8-48, and FC4-16IP
blades in an Admin Domain other than the one used for FICON ports. The ports on these blades should
not belong to the zone in which FICON devices are present.
The port-based routing policy is required in either in a single-switch configuration, or a cascaded switch
configuration on switches in the fabric that have FICON devices attached (option 1 of the aptPolicy
command). Other switches in the fabric can use the default exchange-based routing policy (option 3 of the
aptPolicy command) only when Open Systems devices are attached to those switches.
Types of FICON configurations
There are two types of FICON configurations:
A single-switch configuration (called switched point-to-point) requires that the channel be configured to
use single-byte addressing. If the channel is set up for two-byte addressing, then the cascaded
configuration setup applies. This type of configuration is described in ”Configuring a single switch” on
page 267.
A cascaded configuration (known as a high integrity fabric) requires a list of authorized switches. This
authorization feature, called fabric binding is available through the Secure Access Control List feature.
The fabric binding policy allows a predefined list of switches (domains) to exist in the fabric and
prevents other switches from joining the fabric. This type of configuration is described in ”Configuring a
high-integrity fabric” on page 267.
Control Unit Port (CUP)
IMPORTANT: HP highly recommends installing and enabling CUP.
Control Unit Port (CUP) protocol is used by IBM mainframe management programs to provide in-band
management for FICON switches. When it is enabled, you can set up directors in a FICON environment to
be managed through IBM mainframe management programs. CUP is an optional licensed feature.
The following restrictions apply to FICON directors having at least 256 ports when FICON Management
Server mode (fmsmode) is enabled and CUP protocol is used to manage the switch:
The switch is advertised to the mainframe by CUP as a 256-port switch (due to CUP protocol limitation).
Port Information Block, PDCM, and port names are available for ports 0 through 254 only.
CUP is not supported on the FC4-48 port blade. Even though the FC4-48 port blade can be inserted in
the chassis, only FCP ports can be attached to it.