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

FICON Administrator’s Guide 39

53-1002753-01

FMS mode and FICON CUP

For more information and example output from this command, refer to the Fabric OS Command

Reference Manual.

FMS mode and FICON CUP

Enabling FICON Management Server (FMS) mode in a Fabric OS environment allows the switch to

behave within the context of the FICON architecture and effectively creates a FICON director. For

Fabric OS 7.0 and later, a FICON CUP license is required to enable FMS mode. The FMS mode

setting can be changed whether the switch is disabled or enabled. If FMS mode is changed while

the switch is enabled, a device reset is performed for the control device and an RSCN is generated

with PID 0xDDFE00, where 0xDD is the domain ID of the switch.

Changing FMS mode from disabled to enabled triggers the following events:

• Access to switch configuration parameters is serialized.

• The active CUP configuration data, including the following, is initialized according to the IPL file:

- Port and switch names.

- Port “Block” and “Unblock” values.

- PDCM values.

• Brocade Advanced Zoning, if used, continues to be in force. If there are any differences

between the port-to-port connectivity restrictions defined by Brocade Advanced Zoning and

those defined by PDCMs, the most restrictive rules are automatically applied.

• RSCNs are sent to devices if PDCM changes result in changes to connectivity between a set of

ports that are zoned together.

• An RSCN for the CUP is generated to all mainframe FICON and FCP channels in the fabric.

Changing FMS mode from enabled to disabled triggers the following events:

• A device reset is performed on the control device.

• Prohibits are no longer enforced.

• RSCNs might be generated to some devices if PDCM removal results in changes to connectivity

between a set of ports that are zoned together.

• If a given port was set to “Block” or “Unblock,” that port remains disabled or enabled.

• The switch interface for host in-band management is no longer enabled.

• An RSCN for the CUP is generated to all mainframe FICON and FCP channels in the fabric.

NOTE

FMS mode cannot be enabled in a virtual fabric environment when a logical switch is using 10-bit

addressing mode.