HP StorageWorks Fabric OS 5.2.x administrator guide (5697-0014, November 2009)

Fabric OS 5.2.x administrator guide 241
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 244.
• A
cascaded configuration (known as a high integrity fabric ) requires a list of authorized switches. This
authorization feature (called
fabric binding ) is available through Secure Fabric OS. 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 244.
Control Unit Port (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 optionally licensed feature
available with Fabric OS v4.4.0 or later.
NOTE: At the time of printing, IBM Fibre Connections (FICON) is not supported on HP B-Series Fibre
Channel switches. Please refer to http://www.hp.com
for a list of current supported features.
CUP functionality is present on the SAN Switch 2/32 and SAN Director 2/128 models running Fabric OS
v4.4.0 or later. CUP functionality is also present on the SAN Switch 4/32 and 4/256 SAN Director
models running Fabric OS v5.0.1b or later.
For Fabric OS 5.2.x and higher, the following restrictions apply to the 4/256 SAN Director when FICON
Management Server mode (fmsmode) is enabled and CUP protocol is used to manage the switch:
• The switch is advertised to the mainframe via 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.
• The FC4-48 port blade must not be inserted in slot 10 of the chassis. Slot 10 is reserved for the CUP
port.
• For FR4-18i and FC4-16IP port blades, FICON channels and control units (CUs) can be attached only to
the FC ports on these blades. These blades are advertised to the mainframe as 16-port and 8-port
blades respectively.
NOTE: At the time of this document’s release, HP does not support the FC4-16IP blade. Consult
http://www.hp.com
for the latest, updated information.