John, Have you thought about how to signal updates to pages in the LDS to other jobs and LPARs?
Hiperbatch is a great way to accomplish what you are trying to do, but there is exposure if you share the data set. Ron -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Allan Staller Sent: Tuesday, February 20, 2018 8:13 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: [IBM-MAIN] Any way -- DIV map LDS into data space? Look up HIPERBATCH (been around since MVS/ESA). It is pretty much exactly what you are looking for. -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of John McKown Sent: Tuesday, February 20, 2018 9:55 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Any way -- DIV map LDS into data space? I know that it is possible to use DIV (Data In Virtual) to "map" an LDS into an address space. And then use "windowing services" to move the "window" around within the LDS. What I would really like to do is have an LDS. And, somehow, have an API which would take this LDS and create a data space for me which simply "maps" the entire LDS into the data space. Basically making the LDS a "private page dataset". I would also like to have a way to "harden" all the changed pages in the data space into the LDS (e.g. force pageout changed). And, of course, it would write all the changed pages (and delete the data space) when I request that the LDS be "closed". I just don't see a way to do this. Not even in the 2.3 books. But I'm hoping that I missing something. And, if you're interested, this idea/desire was triggered by the UNIX "mmap()" type functions which map a regular UNIX file as a range of memory. Seems to me that IBM has basically "functionally stabilised" DIV. Like an idea that just didn't pan out. -- I have a theory that it's impossible to prove anything, but I can't prove it. Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ::DISCLAIMER:: -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects. -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------- 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
