In order to copy a load module library to a progam object library
I used ISPF Data Set Utility to allocate the new library with
DSNTYPE=LIBRARY.  Believing that "SDB knows best," I left BLKSIZE
blank.  ISPF warned me.  I told it, "Trust me."  I went to Move/Copy
Utility and tried the copy.  It failed: can't deal with BLKSIZE=0.
Curious, I deleted and re-created with BLKSIZE=1(!?) and retried
the copy.  Succeeded, and as a side effect set BLKSIZE to 4096.

Is there any rationale to this logic, that BLKSIZE=0, which is supposed
to defer the choice to SDB, fails, while the absurd BLKSIZE=1 succeeds
and SDB operates?

-- gil

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