In a message dated 11/3/2007 9:49:47 A.M. Central Standard Time, [EMAIL PROTECTED] writes: >The "bar" is at 2G. But, there is a "dead zone" between 2G and 4G that will never be allocated by z/OS. For simplicity, some folks like to think of the z/OS virtual storage "bar" as being 2G thick. And, of course, there is no equivalent dead zone when working with real storage. And there is not necessarily any equivalent dead zone when working on a z/Architecture mainframe processor with any operating system other than z/OS, and such platforms may even allow virtual addressing in the z/OS-dead zone. Bill Fairchild Franklin, TN
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