Completely Erasing DASD

IBM describes how to completely erase all data and programs from DASD 
in Knowledgebase item 17402046 at 
http://www-912.ibm.com/s_dir/SLKBase.nsf/1ac66549a21402188625680b0002037e/5f48b9883b62d0d386256807007b5b90  .

Thanks to Rob Berendt for the above tip.

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