CA Dynam for VSE User Guide

DYNCAT Commands
Index File Label Information
The INITIAL, DELETE, and BLDIX functions require that the label information
for the index files be available. We recommend that these labels be placed in
standard labels for ease of reference. CA Dynam/D may not be used to
allocate the VTOC index files. When the INITIAL function creates the files, they
are created with the standard file ID as shown, and with an expiration date of
2099/366.
We recommend that they be made data-secured files also. These files must
never be deleted except with the DYNCAT VTOC DELETE function, or the
results will be unpredictable.
Example
The following jobstream builds CA Dynam VTOC indexes on each of the three
DASD volumes: SYSWK1, 335001, and 337501. Note that the file ID and
expiration date are included in the DLBLs for the three files for documentation
purposes. These labels should be included in standard labels for the same
reason.
// JOB CREATE VTOC INDEX FILES
// DLBL SYSWK1,'DYNAM.VTOC.INDEX',2099/366,SD,DSF
// EXTENT SYS001,SYSWK1,1,0,01,9 * CYL 0 TRKS 1 THROUGH 9 *
// ASSGN SYS001,DISK,3330,VOL=SYSWK1,SHR
// DLBL V335001,'DYNAM.VTOC.INDEX',2099/366,SD,DSF
// EXTENT SYS002,335001,1,0,19,9 * CYL 1 TRKS 0 THROUGH 8 *
// ASSGN SYS002,DISK,3330,VOL=335001,SHR
// DLBL V337501,'DYNAM.VTOC.INDEX',2099/366,SD,DSF
// EXTENT SYS003,337501,1,0,7657,9 * CYL 403 TRKS 0 THROUGH 8 *
// ASSGN SYS003,DISK,3330,VOL=337501,SHR
// EXEC DYNCAT,SIZE=128K
VTOC INITIAL VOLSER=335001
VTOC INITIAL VOLSER=337501
VTOC BLDIX VOLSER=335001
VTOC DELETE VOLSER=SYSWK1
/*
/&
The standard name 'DYNAM.VTOC.INDEX' overrides whatever is specified by
the user. The selected logical units are used only to open the three files, not to
access them once built. These units must be properly assigned to the devices
described by the DLBL and EXTENT only for the duration of the DYNCAT job,
and may be subsequently assigned elsewhere.
8–94 User Guide