Explanation
VTAM® issues
this message when a WRITE, READ, DATA, or TRACE path
to or from an adjacent node is no longer active. It provides information
about potential problems and may be issued prior to the deactivation
of a line.
device_address is the hexadecimal
address of the WRITE, READ, DATA, or TRACE subchannel
that is displayed.
resource_name is either:
- The name of a leased line defined for a type 5 physical unit.
- The name of an element in the active transport resource list,
also called a TRLE name.
System action
Operator response
- If resource_name is a transport resource list
element (TRLE) name, you might want to deactivate the resource that
is using this TRLE, and then activate the resource again. If resource_name is
a line, you might want to take the line down and restart the line.
If resource_name is neither a TRLE name or a line,
no action is necessary. Note that the efficiency of data transfer
might be affected.
- If the inoperative subchannel path is critical to your network,
save the system log for problem determination.
- Message IOS000I or other related messages may be issued and can
provide additional information.
- If there are no available paths and the line is deactivated, VTAM issues additional error messages.
Also check for messages on the console log of the VTAM on the other side of the multipath channel.
- Check for any FFST™ probe
output. See the z/OS Communications Server: SNA Diagnosis Vol
2, FFST Dumps and the VIT for information about FFST and for a description of FFST probes.
- 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.
System programmer response
If the output does not indicate a
hardware problem, and you cannot determine the cause of the problem,
take the following actions:
Routing code
Descriptor code