Ed Gould wrote:
I always used IEBDG to create the binary zero blocks of data. I don't
have the control cards handy but its a quick 5 minute read and 1
minute in ISPF.
Perhaps I'm missing something here, and I don't remember 3590 hardware
details, but for my 3480 cartridges I've always used EXCP with CCW
opcode X'97' - Data Security Erase, chained to one Erase Gap. Works like
a charm.
Gerhard Postpischil
Bradford, VT
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