Adjusting OSAM and VSAM database buffers in DFSVSMxx

To adjust OSAM and VSAM database buffers, change the control statements that specify buffer size and number and place the control statements in the appropriate member of the IMS PROCLIB data set.

Put the new control statements in the:
  • DFSVSAMP data set in batch and utility environments
  • IMS.PROCLIB data set with the member name DFSVSMxx in IMS TM and DBCTL environments