HP StorageWorks Fabric OS 5.3.x administrator guide (5697-0244, November 2009)

276 Administering FICON fabrics
Changing fmsmode from enabled to disabled triggers the following events:
1. A device reset is performed on the control device.
2. PDCM is no longer enforced.
3. RSCNs might be generated to some devices if PDCM removal results in changes to connectivity
between a set of ports.
4. If a given port was set to “Block” or “Unblock,” that port remains disabled or enabled.
5. Serialized access to switch parameters ceases.
Setting up CUP when FICON management server mode is enabled
Fmsmode may be enabled and in use on a switch without a CUP License. The transition from fmsmode
disabled to fmsmode enabled with the CUP license installed triggers the notification to the host systems
that the CUP feature is available. Without this notification the host systems will never know the CUP feature
is available, and consequently will never try to communicate with it. Hence, it is possible that fmsmode
may already be enabled on the switch.
If FICON Management Server mode is already enabled, set up CUP as follows:
1. Verify that FICON Management Server mode is enabled by entering the ficoncupshow fmsmode
command.
If FICON Management Server mode is not enabled, refer to ”Enabling and disabling FICON
management server mode” on page 275.
CAUTION: If fmsmode is already enabled, disabling it might be disruptive to operation because ports
that were previously prevented from communicating will now able to do so.
2. If FICON Management Server mode is enabled, then disable it by entering the ficoncupset
fmsmode disable command.
Install a CUP license key as described in ”Adding and removing FICON CUP licenses” on page 279.
3. Enter the ficoncupsetfmsmode enable command.
Displaying the fmsmode setting
The ficoncupshow fmsmode command displays the effective fmsmode setting for the switch.
switch:admin> ficoncupshow fmsmode
fmsmode for the switch: Enabled