Thank you for your concern.

But the issue is still how to make the change.

On Fri, 27 Sep 2024 10:51:09 -0500 Paul Feller
<[email protected]> wrote:

:>If I may, one thing to keep in mind.  The UCB is located in the SQA or ESQA.
:>So, depending on how many devices you have setting LOCANY to YES could have
:>an impact on your ESQA area.  This is also something to think about at IPL
:>time.  I believe there is a time thing related to when the UCBs are loaded
:>and the full ESQA is allocated.  That is part of the reason I added the
:>INITSQA parameter to the LOAD member for my lpars.
:>
:>The full write up for INITSQA can be found in the MVS Initialization and
:>Tuning Reference.  Also in that manual is some information related to what
:>happens with SQA/ESQA related to UCBs and the IPL process.
:>
:>
:>Paul
:>
:>-----Original Message-----
:>From: IBM Mainframe Discussion List <[email protected]> On Behalf Of
:>Binyamin Dissen
:>Sent: Friday, September 27, 2024 7:03 AM
:>To: [email protected]
:>Subject: Re: Which option(s) tells zOS to use 31 bit UCB addresses?
:>
:>OK, I created a HCD.PROFILE and specified the option.
:>
:>/* ****************************************************************** */
:>/*                                                                    */
:>/* HCD Profile                                                        */
:>/* Created :  2024-09-27  14:57:36  by user : B1D                     */
:>/*                                                                    */
:>/* ****************************************************************** */
:>/* ****************************************************************** */
:>/*                                                                    */
:>/*    HCD Profile Section for Standard Profile Options                */
:>/*                                                                    */
:>/* ****************************************************************** */
:>OS_PARM_DEFAULT = LOCANY,YES                                            
:>
:>What steps are required before the IPL?
:>
:>1.  Build production I/O definition file       
:>2.  Build IOCDS                                
:>3.  Build IOCP input data set                  
:>4.  Create JES3 initialization stream data     
:>5.  View active configuration                  
:>6.  Activate or verify configuration           
:>    dynamically                                
:>7.  Activate configuration sysplex-wide        
:>8.  (no longer supported)                      
:>9.  (no longer supported)                      
:>10. Build I/O configuration data               
:>11. Build and manage processor cluster         
:>    IOCDSs, IPL attributes and dynamic I/O     
:>    changes                                    
:>12. Build validated work I/O definition file   
:>
:>On Fri, 27 Sep 2024 18:07:34 +1000 Attila Fogarasi
:><[email protected]
:><mailto:[email protected]> > wrote:
:>
:>:>HCD specifying LOCANY yes.  Note z/OS provides "captured UCB" which gives
:>:>24 bit view of the 31 bit UCB to allow old programs to work (IOSCAPU
:>:>macro).  Works surprisingly well.
:>:>
:>:>On Fri, Sep 27, 2024 at 1:21?AM Binyamin Dissen <
:>:>[email protected]
:><mailto:[email protected]> > wrote:
:>:>
:>:>> Went thru the Init & Tuning Reference and no luck.
:>:>>
:>:>> --
:>:>> Binyamin Dissen <[email protected]
:><mailto:[email protected]> > :>> http://www.dissensoftware.com :>>
:>:>> Director, Dissen Software, Bar & Grill - Israel :>> :>>
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--
Binyamin Dissen <[email protected]>
http://www.dissensoftware.com

Director, Dissen Software, Bar & Grill - Israel

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