- Determine why the buffers are full and correct the problem.
Possible reasons are:
- A console is not ready because:
- An I/O error occurred.
- One or more consoles have a slow roll time.
- The console is in roll deletable (RD) mode but the screen is
filled with action messages.
- The buffer limit is too low to handle the message traffic in the
system. Either the MLIM value in the CONSOLxx parmlib member is
too low, or the system default is not sufficient.
- Also, do the following:
- Enter a DISPLAY CONSOLES,BACKLOG command. The display lists all
MCS and SMCS consoles that have any outstanding WTO messages.
- Look in the display for the CURR= and LIM= values
for messages where
- CURR=aaaa
- The number of WTO buffers in use
- LIM=bbbb
- The limit of WTO buffers
- If the buffer limit is not adequate, issue a CONTROL M,MLIM command
to increase the WTO buffer limit for the duration of the IPL.
- Issue K S,DEL=R to ensure that the console is in
Roll mode.
- Issue a K Q to delete the queue of messages on the
console. You may have to issue the K Q command multiple
times to clear the backlog. You should issue the K Q command for each
console that has a backlog.
- Notify the system programmer of the buffer problem,
if it was not caused by hardware. The system programmer may want to
increase the buffer limit before the next IPL.
When the number of buffers in use drops below 60% of
the limit specified at IPL time, the system issues the following message:
IEA406I WTO BUFFER SHORTAGE RELIEVED
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