Brocade FICON Administrator’s Guide (Supporting Fabric OS v7.3.0) - Manual (Page 96)

Symptom Probable cause and recommended action
Channel path with two-byte addressing does not come
online. The fabric may not be configured properly, cable
connections are not correct, or cable is wrong type.
Find out what CHPID the operator is attempting to bring
online. In FICON environments, only the egress ports
are defined in the IOCDS. The CHPID number of the
channel appears in the node list, but only if the channel
path has logged in. If the channel path will not come
online, it may not have completed a Fibre Channel
fabric login. If this is the case, you will have to rely on
customer documentation to determine the switch port to
which the channel is connected.
Next, find out what type of error message the operator
is getting. An IOS error message is reported when there
is an error external to the host; an IEE error message
indicates something is wrong internal to the host.
Fabric Not Configured Properly
• Make sure that the insistent domain ID is set and
the domain IDs are unique for all switches in the
fabric.
• Make sure that the same binding method is used
on all switches in the fabric.
• Scroll through the node list and make sure there
are no invalid attachments.
• Make sure that the re-routing delay is turned off.
Cabling
Validate that cables are connected where intended.
When using multimode fiber, make sure that all fiber is
either all 50u or all 62.5u. A common mistake is to mix
50u and 62.5u fiber cables, which causes errors at
patch panels.
Example of a Boxed Channel
In the following example, the CHPIDs with two-byte
addressing did not come online. In response, the
CHPID was configured offline and then reconfigured
back online.
MVS console commands and responses (lines
beginning with "IEE" are responses and all other lines
are entries).
CF CHP(60),OFFLINE
IEE503I CHP(60),OFFLINE
IEE712I CONFIG PROCESSING COMPLETE
CF CHP(60),ONLINE
IEE754I NOT ALL PATHS BROUGHT ONLINE
WITH CHP(60)
IEE502I CHP(60),ONLINE
IEE712I CONFIG PROCESSING COMPLETE
The following line displays the status of the CHPID with
the "D M =" command. All other lines are responses.
D M=CHP(60)
IEE174I 03.29.45 DISPLAY M 021
CHPID 60: TYPE=1D, DESC=FICON
INCOMPLETE, ONLINE
DEVICE STATUS FOR CHANNEL PATH 60
0 1 2 3 4 5 6 7 8 9 A B C D E F
006 . $@ . . . . . . . . . . . . . .
Maintaining and Troubleshooting FICON
94 FICON Administrator's Guide
53-1003144-01