Ficon and blade support for addressing modes, Port swap limitations, Disabling and enabling ports - persistent states – Brocade FICON Administrator’s Guide (Supporting Fabric OS v7.3.0) User Manual
Page 48: Created, Disabling and enabling ports - persistent, States
NOTE
To access all parameters controlled by the configure command, you must disable the switch. Any
configuration change to a logical switch that requires disabling the switch also requires disabling FMS
mode.
1.
Disable FMS mode using the ficonCupSet fmsmode disable command.
2.
Disable the switch using the switchDisable command.
3.
Change the address mode using the configure command.
The configure command runs in interactive mode and presents you with a series of hierarchical
menus. To change the address mode, select the Fabric parameters menu, then select the
Enable a 256 Area Limit field and enter appropriate option values. For more information on this
command and an example of command output, refer to the Fabric OS Command Reference.
4.
Enable the switch using the switchEnable command.
5.
Enable FMS mode using the ficonCupSet fmsmode enable command.
FICON and blade support for addressing modes
Note the following considerations about FICON and blade support on logical switches in DCX
systems:
•
On default logical switches (and non-Virtual Fabrics switches), FICON is not supported if
addressing Mode 1 is enabled.
•
Addressing Mode 1 is not supported if FICON CUP is enabled on the default logical switch.
•
On default logical switches with an addressing mode other than Mode 1, any 48-port and 64-port
blades are disabled.
Port swap limitations
For limitations for port swapping on logical switches and when FMS mode is enabled, refer to
Disabling and enabling ports - persistent states
You cannot issue the portCfgPersistentDisable command if FMS mode is enabled. When FMS
mode is enabled, persistently enabled or disabled configuration states are saved in the CUP's IPL file.
When FMS mode is enabled and Active=Saved Mode (ASM) is ON, the user can achieve persistent
port configuration states by using the portDisable and portEnable command. IBM CUP literature
refers to these persistent configuration states as blocked and unblocked.
The persistent configuration state depends on the following factors:
•
If ASM is set to one (1) and you change the port's enabled state to block, unblock, enable, or
disable in the CUP Active Configuration, then that setting will update the IPL file and will be in a
persistent configuration state.
•
If ASM is set to zero (0) and you change the port's enabled state to block, unblock, enable, or
disable in the CUP Active Configuration, then that setting will not update the IPL file and will not
be in a persistent configuration state.
FICON and blade support for addressing modes
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FICON Administrator's Guide
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