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.
Replacing the IFG0EX0B Exit Routine
Characteristics of the IFG0EX0B Exit Routine
Registers on Return from the IFG0EX0B Exit Routine
Example of the IFG0EX0B Exit Routine
Parent topic:
Data Management Installation/Dynamic Exits
Copyright IBM Corporation 1990, 2014