Updating a table, even if it is in there as a load module, that happens to be in the NUC is one thing. Replacing a module in the NUC is a whole different thing. I could see loading a replacement module into fixed CSA and changing a pointer to it, assuming the address for it is in a system vector or control block. Updating the NUC itself while it is running? Not happening.
Chris Blaicher Technical Architect Mainframe Development P: 201-930-8234 | M: 512-627-3803 E: cblaic...@syncsort.com Syncsort Incorporated 2 Blue Hill Plaza #1563 Pearl River, NY 10965 www.syncsort.com Data quality leader Trillium Software is now a part of Syncsort. -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Edward Gould Sent: Wednesday, September 13, 2017 3:42 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Reload nucleus module dynamically > On Sep 13, 2017, at 12:11 PM, Peter Hunkeler <p...@gmx.ch> wrote: > >> What modules do you want to reload? If that is in LPA and/or Linklist, you >> better be careful before issuing commands to refresh them. Of course YMMV. > > > Well, the nucleus is the nucleus, LPA is the LPA, and the linklist is the > linklist. They are different beasts. The first two are different areas in the > virtual address space map, the third is noting but a list of data set to be > searched for load modules. The OP asked about dynamically updating the > nucleus, and this is nothing that MVS supports up to date. > > > -- > Peter Hunkeler Peter: Long time ago and when MVS first came out, we used to do this quite often (once a week). A product we had called DUO (DOS under MVS). DUO maintained a table in the nucleus for which dos jobs were running. They had a bug in their code that would not delete entries. We had to go in and blank out the job names that were not running(so as not to have to IPL). We finally got tired of doing this and wrote a program that did it. Worked like a charm. They asked for the program and we were not in a good mood so we said no. It took them a year to figure out how to do it.My memory is hazy here but I think the degression was “duo” -> went to some company in Dallas? and then a year or two later CA bought them out. By then we had gotten rid of all the jobs. One of the long time contributors to IBM-Main used to work for the company if he hasn’t retired maybe he could speak up? Ed > > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ________________________________ ATTENTION: ----- The information contained in this message (including any files transmitted with this message) may contain proprietary, trade secret or other confidential and/or legally privileged information. Any pricing information contained in this message or in any files transmitted with this message is always confidential and cannot be shared with any third parties without prior written approval from Syncsort. This message is intended to be read only by the individual or entity to whom it is addressed or by their designee. If the reader of this message is not the intended recipient, you are on notice that any use, disclosure, copying or distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the sender and/or Syncsort and destroy all copies of this message in your possession, custody or control. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
