STAT.BUFFER.ESDSDATA | STAT.BUFFER.KSDSINDX | STAT.BUFFER.KSDSDATA

This parameter specifies the number of buffers VSAM allocates for the statistics clusters. IBM® Connect:Direct® uses the values when generating VSAM access method control blocks (ACBs) for the statistics files. Generating these blocks provides a means of tuning VSAM performance for statistics file access in the DTF. IBM Connect:Direct specifies separate buffers for the index and data components for the key sequenced clusters. Each buffer is the size of the control interval of the specified component.

Note: These buffers are allocated above the 16 megabyte line.

The syntax for this parameter is as follows:

STAT.BUFFER.ESDSDATA = number of ESDS data buffers
STAT.BUFFER.KSDSINDX = number of KSDS index buffers
STAT.BUFFER.KSDSDATA = number of KSDS data buffers

The defaults are:

  • STAT.BUFFER.ESDSDATA = 6
  • STAT.BUFFER.KSDSINDX = 6
  • STAT.BUFFER.KSDSDATA = 6

Modifiable through MODIFY INITPARMS command: NO