Learning about repositories

Data repositories are implemented as VSAM data sets.

A master repository catalog keeps track of the VSAM data sets that are used for a subsystem. When you specify global parameters during initial setup, allocation and use of repository data sets are automated.

Repository data is organized into one of the following data groups:

  • ANALYSIS—user settings and database state information

  • ENVIRON—user settings and configuration data

  • STATS—statistical and historical data

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