Brocade FICON Administrator’s Guide (Supporting Fabric OS v7.3.0) - Manual (Page 100)

• Verify the FICON CUP license is installed.
• Check the state of the CUP by running the ficonCupShow fmsmode command. If it is disabled,
enter the ficonCupSet fmsmode enable command to enable it. If the CUP is on a director, enter
the haFailover command to ensure both CPs are set correctly.
• Verify that the switch is using Fabric OS v6.1.0 or later.
• Ensure no device is plugged into port 254 on the Brocade DCX Backbone.
• Verify with the systems programmer that the CUP ports are defined properly.
FICON ports are defined as part of the sysgen process. The z/OS systems programmer can verify
if the CUP ports are defined properly.
• Verify that ports 254 and 255 display Disabled (FMS Mode) by entering the switchShow
command. If not, enter the portDisable command on the appropriate models for the related ports:
‐ On a Brocade 48000, disable 10/30 and 10/31.
‐ On a Brocade DCX Backbone, disable 12/30 and 12/31.
Troubleshooting NPIV
Gather all information as listed in General information to gather for all cases on page 95 and Gathering
additional information on page 97.
Be sure that NPIV licenses are installed if using Fabric OS v5.0.x. There is no license requirement for
Fabric OS v5.1.0 and later.
Troubleshooting NPIV
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