Conflict situations in connection with access to shared public/private volumes

A SOFTWARE DURATION value (volume occupied) more than 10% higher than the corresponding value for HARDWARE DURATION is a clear indication that other tasks are impeding processing (exception: asynchronous input/output, see the explanation of the ""Time" report of the DISK report group").

In this case, a task must wait for the volume before initiating the I/O operation, because the it is busy. The SM2 monitoring program TASK (with INFO=HIGH) indicates which other tasks are likewise occupying this volume with their I/O operations.

The problem can be solved by using the PAV function or file relocation.