Output books

Books contain a snapshot discovery and do not necessarily contain everything known about the environment. For example, if a subsystem is not active at the time of discovery, it is not discovered. There is no difference in what Create and Refresh books discover or include. What differs is that Refresh books include the string 'Refresh' in their file name. Create books do not include the string 'Create'. Meeting CDM rules, any book that does not include 'Refresh' is a Create book.

The DLA can be run to produce a single output file called ZOSALL. Using the ZOSALL option to combine all books into one ZOSALL book will not reduce the time required to load books into a consuming product.

Product support specialist teams that are responsible for managing discovery within their area typically determine when to perform discovery. By default, the DLA generates multiple books as members of a PDSE (partitioned data set extension) to support different teams performing discovery, including when the Refresh mode is used.

Depending on the configuration options that are specified and the subsystems that are active at the time of the discovery, the following members are generated:
  • A member called ZOSBASE that includes hardware, zSeries virtualization, and z/OS® details
  • A member called ZOSTASK that includes subsystems and address space details
  • A member for each Db2® Subsystem
  • A member for each IMS Subsystem
  • A member for each MQ Subsystem
  • A member for each CICS® region
  • A member for each WebSphere® Application Server
Note: z/OS DLA discovers and stores data into IdML without any changes. Ensure data sources are sufficiently scanned and pass security protocols.