Using Hiperbatch

Hiperbatch is an extension of QSAM designed to improve performance in specific situations. Hiperbatch uses the data lookaside facility (DLF) services to provide an alternate fast path method of making data available to many batch jobs. Through Hiperbatch, applications can take advantage of the performance benefits of the operating system without changing existing application programs or the JCL used to run them.

Either Hiperbatch or extended-format data sets can improve performance, but they cannot be used for the same data set.

Related reading: See MVS Hiperbatch Guide for information about using Hiperbatch. See z/OS MVS System Commands for information about the DLF commands.

Hiperbatch	Striping
Uses Hiperspace	Requires certain hardware
Improved performance requires multiple reading programs at the same time	Performance is best with only one program at a time
Relatively few data sets in the system can use it at once	Larger number of data sets can be used at once
QSAM only	QSAM and BSAM