CA Dynam for VSE User Guide

Processing of Equal File IDs
Processing of Equal File IDs
A permanent file is defined as a file with an expiration date of 2099/365 or
greater. Any file with an expiration date less than 2099/365 or the value
specified for AUTODTE in the DYNAM/D option record is considered
nonpermanent.
CA Dynam/D will always check for an equal file ID when allocating disk space
for an output file. If an equal file is found, and the file is nonpermanent, the
original file is immediately deleted from the VTOC without displaying an EQUAL
FILE-ID message on the operator's console.
For permanent files, if an equal file ID condition occurs, the CA Dynam/D
message CADD036D appears on the operator's console. For more information
about possible operator actions, see the Message Guide. At that point, the
operator can either CANCEL the job, DELETE the file and reallocate the new
file, or REWRITE the file using the existing extent limits as defined in the
VTOC.
CA Dynam/D will also attempt to find this permanent file on other volumes
(only if a pool or generic volume is specified), and the operator can either
DELETE the equal file found or IGNORE the file found.
Sending File-Dependent System Messages
There is often a need to communicate with your Operations staff concerning
specific processing for a certain file at a certain time. Supplementary Message
support provides a flexible means of defining your own messages and sending
them to the system console or printer at one or more of four points in file
processing.
These messages are defined in the Catalog by using the DYNCAT DEFINE or
ALTER functions. For more information, see the chapter "Maintaining the
Catalog—DYNCAT Program."
They will be issued automatically by the system at the indicated point in the
job.
For example,
DEFINE 'MASTER.FILE' OOMSG='ISAM MASTER RELOAD HAS BEGUN'
COMSG='ISAM MASTER RELOAD IS NOW COMPLETE'
would result in the following two messages for the output file:
CADD997I ISAM MASTER RELOAD HAS BEGUN
CADD999I ISAM MASTER RELOAD IS NOW COMPLETE
(issued at OPEN)
(issued at CLOSE)
Chapter 4: Disk File Management 4–45