Tuning Your Applications › DASD Management Delays

DASD Management Delays

This section describes the various types of DASD management delays, and the possible reasons for them.

Insufficient space allocated initially for the data set

Indicates one of the following reasons:

If the job JCL allocates too little space for a data set, z/OS allocates secondary extents as necessary to hold all the data.

The data set allocated should be large enough to hold all of the data initially, preventing unnecessary allocations from taking place.