Technical data

7-10 Fabric OS Administrator’s Guide
Publication Number: 53-0000518-09
Using FICON CUP
7
The fmsmode setting can be changed whether the switch is offline or online. If fmsmode is changed
while the switch is online, 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).
When FICON Management Server mode is on, the Fabric OS CLI commands listed here return a
“switch busy” response if they are issued when the host-based management tool is performing a write
operation. This serialization prevents interference from local switch commands when a host-based
management program is being used to administer the switch.
Changing fmsmode from disabled to enabled triggers the following events:
• Access to switch parameters is serialized.
• The active CUP configuration data is established as follows:
- Port and switch names are not read from the IPL; they remain as previously set.
- Port “Block” and “Unblock” values are not read from the IPL; they remain as previously set
with the portEnable and portDisable commands.
- PDCM values are read from the IPL; the default is “Allow All.”
• Brocade Advanced Zoning, if used, continues to be in force. If there are any differences in
restrictions set up with Brocade Advanced Zoning and PDCM, the most restrictive rules are
automatically applied.
• RSCNs are sent to devices if PDCM results in changes to connectivity between a set of ports.
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.
bladeDisable slotOff
bladeEnable slotOn
portDisable switchCfgPersistentDisable
portEnable switchDisable
portName switchEnable
portShow switchName
portSwap switchShow
N
ote
You cannot use the portCfgPersistentEnable and portCfgPersistentDisable commands to persistently
enable and disable ports when FICON Management Server mode is on. Refer to the procedure
“Persistently Enabling/Disabling Ports” on page 7-13.