CA Dynam for VSE User Guide

Basic Components
Some of the disk file characteristics you can specify in the Catalog File include
the following:
• Number of tracks for primary and secondary allocation
• Disk volumes to be used for space allocation
• Disk volumes on which the file currently resides
• Expiration, retention dates, or both
• Option or disposition codes for a file
• Password for a file
• Generation data set definition
• File creation and usage statistics
The Catalog File acts as the central source of information which CA Dynam/D
uses when creating and accessing disk files. In this way, all the information
relating to user disk files can be organized in one central location to provide
secure and efficient disk file processing.
Catalog Management
With the Catalog Management Facility of CA Dynam/D, you can easily control
DASD file allocation and access.
These components are provided to enable you to perform the following:
• Create a Catalog file.
• Define, alter, and delete entries in the Catalog.
• Display the attributes of files defined in the Catalog.
• BACKUP/RESTORE the Catalog File using a tape device.
A file defined in the CA Dynam Catalog can be accessed simply by specifying
that file's ID on a DLBL statement and omitting all EXTENT statements. For
example, to access the cataloged file DISK.FILE, use the following JCL:
// JOB ACCESS FILE
// DLBL USER,'DISK.FILE'
// EXEC PROGRAM
/*
The CA Dynam/D system locates the DISK.FILE entry in the Catalog and
creates EXTENT information for it. If the data set is not found in the Catalog,
CA Dynam/D searches all mounted volumes in PUB order to find it.
Chapter 4: Disk File Management 4–7