Brocade Fabric OS Troubleshooting and Diagnostics Guide v6.2.0 (53-1001187-01, April 2009)

Fabric OS Troubleshooting and Diagnostics Guide 91
53-1001187-01
Troubleshooting FICON
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• Supportshow data is only valid if run within about 30 minutes of the failure in order for the data
to be valid.
• Provide the IOCDS mainframe file.
This will define how all mainframe ports are configured.
• Type of mainframe involved. Need make, model, and driver levels in use.
• Type of actual Storage array installed. Many arrays will emulate a certain type of IBM array and
we need to know the exact make, model, and firmware of the array in use.
• Read Brocade Release Notes for specific version of Fabric OS being installed.
The following sources provide useful problem-solving information:
• The standard support commands (portLogDump, supportSave, supportShow) or the Fabric
Manager Event Log.
• Other detailed information for protocol-specific problems:
- Display port data structures using the ptDataShow command.
- Display port registers using the ptRegShow command.
Identifying ports
The ficonShow rlir command displays, among other information, a tag field for the switch port. You
can use this tag to identify the port on which a FICON link incident occurred. The tag field is a
concatenation of the switch domain ID and port number, in hexadecimal format. The following
example shows a link incident for the switch port at domain ID 120, port 93 (785d in hex):
switch:admin> ficonshow rlir
{
{Fmt Type PID Port Incident Count TS Format Time Stamp
0x18 F 785d00 93 1 Time server Thu Apr 22 09:13:32 2004
Port Status: Link not operational
Link Failure Type: Loss of signal or synchronization
Registered Port WWN Registered Node WWN Flag Node Parameters
50:05:07:64:01:40:16:03 50:05:07:64:00:c1:69:ca 0x10 0x200115
Type number: 002064
Model number: 103
Manufacturer: IBM
Plant of Manufacture: 02
Sequence Number: 0000000169CA
tag: 155d
Switch Port WWN Switch Node WWN Flag Node Parameters
20:5d:00:60:69:80:45:7c 10:00:00:60:69:80:45:7c 0x00 0x200a5d
Type number: SLKWRM
Model number: 24K
Manufacturer: BRD
Plant of Manufacture: CA
Sequence Number: 000000000078
tag: 785d
}
}
The Local RLIR database has 1 entry.