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

42 FICON Administrator’s Guide
53-1002753-01
Mode register bit settings
3
After a nondisruptive upgrade from Fabric OS v6.4.0 to v7.0.0 or later, the following events
occurs:
NOTE
These only occur on platforms released prior to Fabric OS v7.0.0.
- You can manage port connectivity using the Allow/Prohibit Matrix in Brocade Network
Advisor and Web Tools. Note that these applications are not available unless you install a
FICON CUP license. The Mode Register is accessible via Web Tools and the Fabric OS
commands.
- Inband Management is enabled, provided you do not disable FMS mode, disable then
enable the switch, or power-cycle the switch.
- If you disable FMS, a FICON CUP license is required to re-enable the feature.
Port swap limitations
Following are limitations for swapping ports or blades using CLI commands or Brocade Network
Advisor options. Note that some of these constraints apply to logical switches in general, and are
not necessarily limited to switches enabled for FMS mode.
• A port may be swapped with only one other port at a time.
• Ports cannot be swapped if one of the ports has a value of 0xFE or 0xFF in the Fibre Channel
Port ID (FC ID) field.
• The logical switch addressing mode can’t be changed if the logical switch contains swapped
ports.
• LSCFG operations cannot operate on swapped ports.
• You cannot swap ports that are in two different logical switches.
• Swapped Ports cannot be moved out of a logical switch.
• The portaddress - -bind command is not allowed on swapped ports.
• The wwnaddress - -bind command is not allowed on swapped ports.
Mode register bit settings
A mode register controls the behavior of the switch with respect to CUP itself, and with respect to
the behavior of other management interfaces. The mode register bits are described in Table 5.
TABLE 5 FICON CUP mode register bits
ACP Alternate control prohibited. Because the Fabric OS CLI, Web Tools, and Brocade Network
Advisor are considered to be switch consoles, this bit has no effect on their operation. Attempts
to set CUP parameters through SNMP are denied when this bit is set on. The default setting is 1
(on).
ASM Active=Saved mode. When this bit is set on, all CUP configuration parameters are persistent,
meaning that they will be saved in nonvolatile storage in the IPL file that is applied upon a cold
reboot or a power cycle. The default setting is 1 (on).
DCAM Switch clock alert mode. When this bit is set on, a warning is issued when the date,
tsClockServer, or tsTimeZone commands are entered to set the time and date on the switch. The
default setting is 0 (off).