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Chapter 24
Configuring FICON
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
Moving a FICON VSAN to an Offline State
Issue the ficon vsan vsan-id offline command in EXEC mode to log out all ports in the VSAN that needs
to be suspended.
Issue the EXEC-level ficon vsan vsan-id online command in EXEC mode to remove the offline
condition and to allow ports to log on again.
This command can be issued by the host if the host is allowed to do so (see the
Note
Offline"
Clearing FICON Device Allegiance
FICON requires serialization of access among multiple mainframes, CLI, and SNMP sessions be
maintained on Cisco MDS 9000 Family switches by controlling device allegiance for the currently
executing session. Any other session is denied permission to perform configuration changes unless the
required allegiance is available.
This task aborts the currently executing session.
Caution
You can clear the current device allegiance by issuing the clear ficon vsan vsan-id allegiance command
in EXEC mode.
switch# clear ficon vsan 1 allegiance
CUP In-Band Management
The Control Unit Port (CUP) protocol configures access control and provides unified storage
management capabilities from a mainframe computer. Cisco MDS 9000 FICON-enabled switches are
fully IBM CUP standard compliant for in-band management using the IBM S/A OS/390 I/O operations
console.
The CUP specification is proprietary to IBM.
Note
CUP is supported by switches and directors in the Cisco MDS 9000 Family. The CUP function allows
the mainframe to manage the Cisco MDS switches.
Host communication includes control functions such as blocking and unblocking ports, as well as
monitoring and error reporting functions.
OL-6973-03, Cisco MDS SAN-OS Release 2.x
section in this chapter).
Moving a FICON VSAN to an Offline State
"Host Moves the Switch
Cisco MDS 9000 Family Configuration Guide
24-27
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