There have been several published studies showing that using a zero-based comparison, the z/Linux solution is cheaper. Check the archives. At least one person has stated this formally and offered his analysis to others. Unfortunately, I have misplaced my copy and can't tell you where the "break even" point is.
Mark Post is a also very good source. HTH, ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html