Explanation
VTAM® initiated
an I/O operation with a LAN channel station, and start I/O timeout
occurred for one of the following reasons:
- An interrupt was not received in the time specified for that I/O
operation.
- Certain asynchronous events did not occur in the time specified
for that I/O operation.
- The LAN channel station did not respond to a channel request from VTAM.
device_address is the hexadecimal
address of the subchannel used to communicate with the LAN channel
station.
System action
Processing continues.
If the LAN channel
station does not respond in the defined interrupt interval, data will
be lost and all lines using this subchannel will become inoperative.
The default interrupt interval is 3 minutes. For more information,
see the description of the MIHTMOUT start option in the z/OS Communications Server: SNA Resource Definition
Reference.
Operator response
- If the LAN channel station was stopped, normal operation will
resume when you restart the LAN channel station.
- If the LAN channel station has failed, take the following actions:
- Deactivate all lines using this subchannel because the lines cannot
be used.
- Check for a hardware problem:
- Run your operating system service aid program to determine whether
MDR/OBR information has been recorded. See the EREP User's Guide
and Reference for more information on using EREP. If you use
a network management application such as the NetView® program, check to see whether an
alert was recorded for this problem.
- If you cannot determine the cause of the problem from the output
provided or need additional assistance, contact the IBM® hardware support center. If available, provide
the MDR/OBR information from your operating system service aid program
or the alert information recorded by your network management application.
Otherwise, no action is required.
System programmer response
Routing code
Descriptor code