Beginning with release 3.3, DFSORT offers File Management System options that offer improved handshaking with CA EPIC for z/VSE. On older releases of DFSORT or without the FMS=YES option (in the ILUINST macro), see the section on IBM SM-2 (below) for recommendations.
With the FMS=YES option, DFSORT users can take advantage of improved pre-open checking, LUB allocation for SORTWK files, and secondary allocation for SORTWK files. Unless EPIC reblocking of input files is required, you should be able to execute DFSORT directly to enjoy improved performance compared to TSIDSRT.
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