CA Dynam for VSE User Guide

Defining File ID Option Codes
The following list describes the file ID option codes you can specify on the
DLBL statement.
A
Align on cylinder boundary
Dynamically allocated area must be on a cylinder boundary. ALIGN is the
default setting only for ISAM prime EXTENT files.
B
Bypass AVR
Causes AVR to be bypassed for a specified file. DASD device-independence is
also bypassed.
C
Catalog data set
Catalogs a data set. Remember that C is not a default option and must be
specified in order to catalog a data set from Job Control.
Note that only CA Dynam/D-controlled files (relative starting track containing
the trigger value) can be cataloged using the C code.
D
Delete file at input CLOSE
Deletes the VTOC entry when closing an input SD (sequential disk), ISAM
(indexed sequential), or a DA (Direct Access) file.
Note that D is not the default and must be specified for deletion to take place.
The D option applies only to CA Dynam/D-controlled files.
DL
D1
Delete the incore label for the file at close.
Diagnostic trace
Traces CA Dynam/D's internal activities in processing a disk file. For more
information, see the Programming Guide.
E
Enqueue File
The E option is used to enqueue files opened for input, update or output. This
file, once opened, cannot be accessed by any other job which executes in the
system or in other systems sharing the same IBM Lock file. When an
enqueued file is closed, it becomes accessible to other programs. The enqueue
facility is available to CA Dynam/D users with or without Catalog Management
support.
Note that the E option applies to both CA Dynam/D-controlled and
noncontrolled files. The E option must be specified for all files where enqueue
validation/processing is desired. If omitted, it is possible to successfully access
a file which is currently enqueued by another program.
Chapter 4: Disk File Management 4–15