The IDXDATBUF option determines the size of buffer used when accessing the data portion of a file with organization INDEXED.
IDXDATBUF=integer
integer | Round up the value that you enter to the next power of 2 that is greater or equal. |
0 | Do not use buffering. |
Default: | 0 |
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.