Brocade FICON Administrator's Guide v7.1.0 (53-1002753-01, March 2013)

FICON Administrator’s Guide 33
53-1002753-01
Chapter
3
Configuring FICON CUP
•Control Unit Port overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
•Port and switch naming standards for FMS mode . . . . . . . . . . . . . . . . . . . . 36
•Configuring FICON CUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
•Determining physical port assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
•FMS mode and FICON CUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
•Mode register bit settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
•Setting the MIHPTO value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
•Persistently enabling and disabling ports for CUP . . . . . . . . . . . . . . . . . . . . 46
Control Unit Port overview
The Control Unit Port (CUP) provides an in-band management interface defined by IBM that defines
the Channel Command Words (CCWs) that the FICON host can use for managing the switch. The
protocol used is the IBM version of the ANSI FC-SB3 single-byte command code specification,
which defines the protocol used for transporting CCWs to the switch, and for the switch to direct
data and status back. The CUP is an optional licensed feature.
The CUP provides an interface for host in-band management and collection of FICON switch
performance metrics using the RMF 74-7 record, more commonly known as the FICON Director
Activity Report. Host-based management programs manage the FICON switches by sending
commands to the switch Control Unit defined in the IOCDS and Hardware Configuration Definition
(HCD). A FICON switch that supports CUP can be controlled by one or more host-based
management programs or switch consoles. Control of the FICON switches can be shared between
these options. CUP commands, or CCWs, monitor and control FICON switch functions. CUP
commands are oriented towards management of a single switch, even though the use of CUP in a
cascaded FICON environment is fully supported.
NOTE
The CUP port address will always be xxFExx. Port Addresses xxFE and xxFF are unavailable to assign
to physical ports when FMS is enabled. For more information, refer to “Disabling ports 0xFE and
0xFF” on page 38.
FICON Management Server mode (FMS mode) must be enabled on the switch to enable CUP
management features. For more information, refer to “FMS mode and FICON CUP” on page 39.