Hi Folks,
There are two programs on the CBT Tape that can change SL to NL.
These are: COPYSLNL which is a variant of the COPYFILE program, that is
on File 229. And COPYMODS from CBT Tape File 229 with PARM or SYSIN
option of STRIP can do it too. This is for an ENTIRE TAPE, with many
files on it.
Further, if, when you copied an SL tape to NL with COPYMODS using
PARM=STRIP, and you also dumped the images of all the labels using
PARM=LABLDUMP at the same time, you can then RECONVERT the NL tape back
to an SL tape, by sandwiching the dumped labels back, using the
PARM=LABADDIN option of COPYMODS. So you can go SL to NL, and then NL
to SL for an entire tape, with many files. Further, if you want to
change some of the labels in the meanwhile, you can edit the dumped
labels before splicing them back on the NL tape using a PARM or SYSIN of
LABADDIN under COPYMODS. Cool?
The difference between how COPYSLNL strips the labels and how
COPYMODS with PARM of STRIP strips the labels is a fundamental
difference. COPYSLNL does it by COUNTING files, assuming that Files 1,
3, 4, 6, 7, 9 etc., are labels, because of their position on the tape.
COPYMODS with the STRIP option does it by DETECTING the labels
themselves, as being labels, and NOT copying them. Therefore, a messed
up SL tape with labels in the wrong place, can be cleaned up using
COPYMODS with the STRIP option.
Do things NICELY. IEBGENER, bah!
All the best of everything to you and your families..........
Sincerely, Sam
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