CA Dynam for VSE User Guide

Tape File Management Utilities
TDYNASN prints control statements on SYSLST only if // OPTION LOG is in
effect.
Tape Copy Utility—TDYNCOPY
TDYNCOPY is a tape-to-tape copy program. The tapes can be either labeled or
unlabeled. TDYNCOPY can be used to do the following:
• Copy single or multiple files, multifile volumes, and multivolume files
• Reblock fixed length files
• Output one file on the same volume, from multiple input files on separate
volumes
• Output multiple files on separate volumes, from multiple input files on the
same volume
• Output multiple files on the same volume, from multiple input files on
separate volumes
TDYNCOPY uses the Filename UIN for input files on SYS004 and the Filename
UOUT for output files on SYS005. If SYS005 is assigned to IGNORE, processing
for the output file is bypassed.
Storage Requirements
TDYNCOPY no longer requires execution with a SIZE=128K parameter.
TDYNCOPY will allocate storage for I/O buffers from partition GETVIS storage.
A 64 KB buffer will be needed to accommodate the largest physical block that
can be written to a tape. The file can copy blocks up to 65535 bytes, because
it is copied with physical I/O.
Determining Block and Record Size
TDYNCOPY determines the block and record size inline. A second I/O area will
be allocated from the partition GETVIS to do the reblocking. The size of the
second I/O area will be the NEW blocksize. Valid output blocksize is up to
65535 bytes.
TDYNCOPY conditionally supports multiple input files of different formats (that
is, fixed, variable, and so on) to multiple output files. This support is activated
by using MODON 10. Care must be taken when using this feature, especially
when copying multiple input files to stacked output, (UPSI combination of
1xxx1xxx).
3–8 User Guide