I would be interested in any additional insight on this as the following is from the V2R2 JCL Reference Page 446. The asterisks are just to enclose the info. The BOLD characters would be relative to the IEFUSI and IEALIMIT or, possibly, some similar 3rd party product that does the same.
******************************************************************** value=0M or 0K A value equal to 0K or 0M gives the step all the storage available below the 2 GB bar. This includes below and above 16 megabytes. The resulting size of the region below and above 16 megabytes depends on system options and what system software is installed. When REGION=0K/0M is specified, the MEMLIMIT value is set to NOLIMIT. ******************************************************************** John T. Abell Tel: 800-295-7608 Option 4 President International: 1-416-593-5578 Option 4 E-mail: john.ab...@intnlsoftwareproducts.com Fax: 800-295-7609 International: 1-416-593-5579 International Software Products www.ispinfo.com This email may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, retention, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive on behalf of the named recipient), please contact the sender by reply email and delete all copies of this message. Also,email is susceptible to data corruption, interception, tampering, unauthorized amendment and viruses. We only send and receive emails on the basis that we are not liable for any such corruption, interception, tampering, amendment or viruses or any consequence thereof. -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Jerry Whitteridge Sent: Wednesday, January 04, 2017 4:08 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: EXTERNAL: REGION=0 It did - for below the line storage, but (and Gil informs me this has changed in newer releases) only allocated 32M above the line. I'm not sure which release that changed in. Jerry Whitteridge Manager Mainframe Systems & Storage Albertsons - Safeway Inc. 623 869 5523 Corporate Tieline - 85523 If you feel in control you just aren't going fast enough. -----Original Message----- From: IBM Mainframe Discussion List [ <mailto:IBM-MAIN@LISTSERV.UA.EDU> mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Frank Swarbrick Sent: Wednesday, January 4, 2017 1:58 PM To: <mailto:IBM-MAIN@LISTSERV.UA.EDU> IBM-MAIN@LISTSERV.UA.EDU Subject: EXTERNAL: REGION=0 Can you explain that? I thought REGION=0M (or 0K) allowed you to allocate storage up to "whatever is available" (or something like that). ________________________________ From: IBM Mainframe Discussion List < <mailto:IBM-MAIN@LISTSERV.UA.EDU> IBM-MAIN@LISTSERV.UA.EDU> on behalf of Jerry Whitteridge < <mailto:jerry.whitteri...@safeway.com> jerry.whitteri...@safeway.com> Sent: Wednesday, January 4, 2017 11:39 AM To: <mailto:IBM-MAIN@LISTSERV.UA.EDU> IBM-MAIN@LISTSERV.UA.EDU Subject: Re: EXTERNAL: Re: SHOWMVS ASMA972U Error Also consider that REGION=0M gives you all storage below the line and 32M above the line. You may want to specify a larger region size and see if that helps. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to <mailto:lists...@listserv.ua.edu> lists...@listserv.ua.edu with the message: INFO IBM-MAIN ________________________________ Warning: All e-mail sent to this address will be received by the corporate e-mail system, and is subject to archival and review by someone other than the recipient. This e-mail may contain proprietary information and is intended only for the use of the intended recipient(s). If the reader of this message is not the intended recipient(s), you are notified that you have received this message in error and that any review, dissemination, distribution or copying of this message is strictly prohibited. If you have received this message in error, please notify the sender immediately. ________________________________ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to <mailto:lists...@listserv.ua.edu> lists...@listserv.ua.edu with the message: INFO IBM-MAIN --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN