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Types of data sets z/OS concepts |
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z/OS® has many different types of data sets. Data sets can be sequential or partitioned:
Partitioned data sets are often called libraries. By convention, libraries often have the letters "LIB" in the data set name. Also by convention, programs and procedures are stored in separate libraries; within a library, each program or procedure is stored as a separate member of the partitioned data set. Data sets can be permanent or temporary:
Data sets can be cataloged, which permits the data set to be referred to by name without specifying where the data set is stored. A catalog describes data set attributes and indicates the devices on which a data set is located. In z/OS, the master catalog and user catalogs store the locations of data sets. |
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