Note: DIV data sets are also referred
to as VSAM linear data sets.
The HSSAVE default provides
the best protection from data loss during programming. During execution
of tested programs, you might want to improve performance by specifying
NOHSSAVE. The performance improvement results from a decrease in the
number of I/O operations to the DIV data set. However, you should
not specify NOHSSAVE unless you are willing to risk losing changes.
You might lose changes if the library is not closed before a job terminates
abnormally.