HP StorageWorks 8/80 HP StorageWorks Fabric OS 5.2.x administrator guide (5697 - Page 241
Types of FICON configurations, Control Unit Port (CUP), single-switch, switched point-to-point
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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. Fabric OS 5.2.x administrator guide 241