CA Dynam for VSE User Guide

Changing File Characteristics
SORTWRK=
Specifies the file name (maximum of 5 characters) of the label information to
be used as the CA SRAM work file. The file name value is limited to a
maximum of 5 characters. SYSnnn is the logical unit to be used in accessing
the file. If more than one dynamically sorted file is processed in a single
program, this parameter must be used to define the CA SRAM work files.
Naturally, more than one task cannot use the same DASD work space at the
same time.
Default: (WORK1,SYS001)
SYSxxx
Specifies an explicit logical unit. Use this option if you're using unit record
simulation when the program DTF is DTFDI.
Default: Program-defined logical unit
Examples
Changes the block size to 8000 bytes (BLKSZ=8000) and the tape labeling to
standard label processing (SL).
// TLBL FILEA,'FILE-ID',0,BLKSZ=8000,FIOPT=(SL)
Changes the block size to "optimal" blocking (BLKSZ=OPT), rewinds and
unloads the tape at close (RUN), and forces double buffering I/O (DB).
// TLBL FILEB,'FILE-ID',0,BLKSZ=OPT,FIOPT=(RUN,DB)
Forces the use of logical unit SYS018 (SYS018), changes the record format to
fixed-blocked (FB) and the record length to 80 bytes (LRECL=80).
// TLBL FILEC,'FILE-ID',,SYS018,RECFM=FB,LRECL=80
DLBL Statement
// DLBL filename,'dataset-name' [ ,retention ]
[ ,type ]
[ ,IBM DLBL options ]
[ ,BLKSZ= {nnnnn|OPTimize } ]
[ ,CONCAT ]
[ ,CONCAT= {ALL|nn } ]
[ ,FIOPT=(options) ]
[ ,FIVSAM|,NOFIVSAM ]
[ ,IGNORE ]
[ ,LRECL=nnnnn ]
[ ,MAXCI=nnnnn ]
[ ,NOFI ]
[ ,NOTAPE ]
[ ,RECFM=xx ]
[ ,SRTCORE=nnnnnn ]
Chapter 6: Controlling File Independence 6–15