z/OS DFSMS Installation Exits
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DCB Open Installation Exit (IFG0EX0B)

z/OS DFSMS Installation Exits
SC23-6850-01

You can use the IFG0EX0B installation exit to:
  • Specify an installation-determined value for the number of buffers for QSAM DCBs.
  • Direct the system to determine the block size for an output data set.
  • Modify the JFCB to:
    • Request partial release of DASD space
    • Change the DASD secondary space request parameters.
Parent topic: Data Management Installation/Dynamic Exits

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