CA Dynam for VSE User Guide

Processing Expired Files
Processing Expired Files
When CA Dynam/D is mapping a volume to perform allocation, any VTOC
entries containing expired dates will be deleted if—and only if—those entries
are for existing files created under the control of CA Dynam/D. Files are
considered to have been created under control if any of the facilities of CA
Dynam/D were invoked when the file was created (for example, AVR,
COMLUB, Device Independence, and so on), regardless of whether CA
Dynam/D allocated the file.
Retention and Expiration Date Criteria
The processing of expired files depends on the following factors:
• Whether the files are cataloged
• Whether you specify retention/expiration on the DLBL statement
• Whether you use certain retention defaults
The retention and expiration date criteria by which CA Dynam/D determines
how to process expired files are presented on the next two pages under
Retention and Expiration Date Processing.
Retention and Expiration Date Processing
CA Dynam/D analyzes your DLBL statement and any associated catalogdefined
information in order to determine the retention/expiration dates to be
used. To illustrate, consider the following cases:
• Without using the CA Dynam Catalog
• Using the CA Dynam Catalog
Without Catalog Use
In the following examples, the Catalog is not being used and DLBL and
EXTENT statements are supplied.
If the retention/expiration specification is omitted from the DLBL statement,
then the VSE default of seven (7) days retention is used by CA Dynam/D.
Example:
// DLBL DTF,'DSN',,SD
// EXTENT SYS001,VOLSER,,,1,100
Chapter 4: Disk File Management 4–43