Catalogs
Knowing where your data is stored is vital to perform any data-related tasks, from a simple open for I/O, to providing backups for availability management. Whether you are a small shop with a single LPAR and a few data sets, or a large system with dozens LPARs and millions of data sets to manage, catalogs provide you a simple, easy, and efficient way to organize information about your data sets.
In z/OS, catalogs are controlled by an embedded DFSMSdfp component that is called Catalog Management. Catalog Management has one address space ...
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