IBM prepares for the removal of support for user key common areas

I was presented with this PTF on our recent z/OS 2.2 Maintenance upgrade.
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UA94606
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The allocating, obtaining, or changing common areas of                virtual 
storage, such that the storage is in user key   
(8-15), will not be supported after z/OS V2R3.

                                           
In addition, setting the DIAGxx parmlib statement
VSM ALLOWUSERKEYCSA to YES will not be supported after
z/OS V2R3.  IBM strongly recommends specifying or
defaulting the ALLOWUSERKEYCSA statement to NO.


Paul V. D'Angelo
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