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Z/VSE File Assignments

Even if you use a storage management tool such as CA-DYNAM, CA IDMS Schema Mapper requires an ASSGN statement for every file except SORTWKnn. This ASSGN is required because CA IDMS Schema Mapper has its own device-independent support which dynamically builds a DTF based on the device type indicated by the ASSGN. Unless the ASSIGN specifies VSAM or BDAM, the file may be defined with either DLBL or TLBL.