On Fri, 18 Apr 2014 14:07:29 -0500, Paul Gilmartin wrote:

>Are there separate pools of real storage for above the bar and below the bar?

Pools? No. Pools are a software concept.

Real storage with real addresses < 2 GiB are below the bar.
Real storage with real addresses > 2 GiB are above the bar.

A GETMAIN request can specify whether the storage is to be backed by real 
storage < 16 M, <2 G, or anywhere.

-- 
Tom Marchant

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