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General Guidance z/OS DFSMS Using Data Sets SC23-6855-00 |
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You can identify user-written exit routines for use with non-VSAM access methods. These user-written exit routines can perform a variety of functions for non-VSAM data sets, including error analysis, requesting user totaling, performing I/O operations for data sets, and creating your own data set labels. These functions are not for use with VSAM data sets. Similar VSAM functions are described in Coding VSAM User-Written Exit Routines. The DCB and DCBE macros can be used to identify the locations of
exit routines:
The exit addresses can be specified in the DCB or DCBE macro, or you can complete the DCB or DCBE fields before they are needed. Table 1 summarizes the exits that you can specify either explicitly in the DCB or DCBE, or implicitly by specifying the address of an exit list in the DCB.
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Copyright IBM Corporation 1990, 2014
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