>From the z/OS 2.2 JCL manual. All this could be different if you have an exit >in place to influence REGION size.
A value equal to 0K or 0M gives the step all the storage available 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 is set to NOLIMIT. A value greater than 0K or 0M and less than or equal to 16,384K or 16M - establishes the size of the private area below 16 megabytes. If the region size specified is not available below 16 megabytes, the job step abnormally ends with an ABEND822. The extended region size is the default value of 32 megabytes. A value greater than 16,384K or 16M and less than or equal to 32,768K or 32M - gives the job step all the storage available below 16 megabytes. The resulting size of the region below 16 megabytes depends on system options and what system software is installed. The extended region size is the default value of 32 megabytes. A value greater than 32,768K or 32M and less than or equal to 2,096,128K or 2047M - gives the job step all the storage available below 16 megabytes. The resulting size of the region below 16 megabytes depends on system options and what system software is installed. The extended region size is the specified value. If the region size specified is not available above 16 megabytes, the job step receives whatever storage is available above 16 megabytes, up to the requested amount, and the resulting size of the region above 16 megabytes depends on system options and what system software is installed. Thanks.. Paul Feller AGT Mainframe Technical Support -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Jerry Whitteridge Sent: Wednesday, January 04, 2017 15:08 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] On Behalf Of Frank Swarbrick Sent: Wednesday, January 4, 2017 1:58 PM To: 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 <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Jerry Whitteridge <jerry.whitteri...@safeway.com> Sent: Wednesday, January 4, 2017 11:39 AM To: 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 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 lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
