Brocade FICON Administrator’s Guide (Supporting Fabric OS v7.3.0) - Manual (Page 99)

Cascaded topology checklist
Verify the following in your FICON environment to ensure proper functionality of the feature:
• Fabric OS v6.1.0 or later is installed Brocade switch or director.
• Appropriate management tool is used, such as EFCM v9.6x, DCFM, or Brocade Network Advisor.
• All required licenses are activated to enable your FICON configuration?
• The switch or director does not have a special mode setting enabled for FICON.
In addition to device-based routing, lossless, and in-order frame delivery (IOD), the dynamic load-
sharing feature is enabled.
• If you have a fabric for intermix mode of operations, separate zones for FICON and FCP devices
are configured.
• A maximum of one hop exists for both FCP and FICON devices (mainframe channel device
connectivity rule).
• The insistent domain ID flag is set to keep the domain ID of a fabric switch persistent.
• The CHPID link path is defined using the two-byte address format.
• The FICON channel connectivity to the storage CU port does not exceed one hop.
• Proper security policies are enabled. Refer to Configuring cascaded FICON on page 41.
• The Switch Connection Control (SCC) security policy is active.
• Brocade Advanced features software package (Trunking, Fabric Watch, Extended fabric) license is
activated.
Gathering additional information
Collect information for your support provider as mentioned in the Fabric OS Troubleshooting and
Diagnostics Guide. In addtion, gather the following FICON-specific information.
• Did the problem occur during an initial install or has was everything functioning prior to the
problem?
• What was changed immediately before the problem occurred.
• Is the switch properly configured for a FICON environment.
Refer to the most recent version of the Fabric OS Release Notes for notes on FICON setup and
configuration.
• Is this a switched point-to-point or cascaded environment.
• Is the FICON group enabled for supportShow.
Enter the supportShow command and verify that FICON is enabled under "supportshow groups
enabled". If it is not enabled, use supportShowCfgEnable ficon command.
CUP diagnostics
FICON CUP supports the IBM Health Checker for zOS to diagnose problems. Refer to the IBM
Redbooks website at
www.redbooks.ibm.com for details on using the IBM Health Checker for z/OS.
Troubleshooting FICON CUP
In addition to the information you collect for your support provider mentioned in Troubleshooting FICON
on page 95, also gather the following information which is specific to FICON CUP:
Cascaded topology checklist
FICON Administrator's Guide 97
53-1003144-01