DFSMS Macro Instructions for Data Sets. z/OS DFSMS Macro Instructions for Data Sets. This information supports z/OS® (5650-ZOS) and contains information about DFSMSdfp and related features z/OS DFSMS Using Data Sets This document also explains how to use access method services commands, macro instructions, and JCL to process data sets. z/OS DFSMS Macro Instructions for Data Sets The format of the OPEN macro is: macro. address: specifies the address of the ACB or DCB for the data sets Feb 15, 2019 - Jun 24, 2019 - Previous topic | Next topic | Contents | Contact z/OS | Library | PDF VSAM Macro Instructions z/OS DFSMS Macro Instructions for Data Sets SC23-6852-02 The UPRIN DD is either missing or not pointing to a valid dataset (QSAM, 80 bytes Data Sets or IBM DFSMS/MVS Macro Instructions for Data Sets. Representatives (SSRs), refer to the separate StorageTek book Requesting Help from.VSAM Macro Instructions. Introduction to VSAM programming · VSAM macro descriptions and examples · VSAM macro return and reason codes.