Hi All,

     Who remembers how to "ripple core" on a 360/75J?   Back in the day, I was 
taught that it "wrote un-digit zeros" to all storage locations (main + LCS) on 
the box.   If course, an IPL was required after this was done.

     Not sure how widely it was used.   A simple yes or no is OK if you cannot 
provide details.    😊

Thanks!
BobL

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