IDXDATBUF

The IDXDATBUF option determines the size of buffer used when accessing the data portion of a file with organization INDEXED.

Syntax:
IDXDATBUF=integer
Parameters:
integer Round up the value that you enter to the next power of 2 that is greater or equal.
0 Do not use buffering.
Properties:
Default: 0
Comments:

A non-zero value can be beneficial while the file is being created. Otherwise, you might not achieve a gain in performance; in fact, performance can be degraded.

For those files where index and data are held in the same physical file, this option has no effect.