> -----Original Message-----
> From: IBM Mainframe Discussion List On Behalf Of john gilmore
>
> Bill Klein provided the necessary reference, to wit
>
>
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/igy3c130/3.4
>
> If you consult it, you will discover that the [COBOL]
> compiler needs to be authorized iff it is to occupy shared
> storage.
Though it certainly reads that way, I don't recall that z/OS (or MVS)
*requires* that a library or load module be authorized simply to reside
or execute in shared storage. Rather, load modules that reside in
(certain) shared storage attain authorization as a consequence of
residing therein (e.g.: LPA).
> [In my own experience it may be useful to put a
> compiler into shared storage in, for example, a
> testing/development LPAR.]
It's arguably better for many address spaces to share one copy of a
module in real storage than to have multiple copies of the same module
in real storage, each being used by a single address space.
-jc-
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