.-IOMSGLIM--=--100---------------------. >>-+--------------------------------------+-------------------->< '-IOMSGLIM--=--number_of_message_pairs-'
range: | 1–100 |
Limits the number of pairs of IST530I and IST1436I messages that are written for individual subareas by the IOPD facility. If the number of pending I/O operations for a subarea is greater than the value specified, then the IOPD facility writes only one message pair for each type of pending I/O operation for that subarea instead of one message pair per pending operation. The default value ensures that a message pair is written for each pending I/O operation.
You can change the value of IOMSGLIM with the MODIFY VTAMOPTS command while VTAM® is running.