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Alejandro: Try this. To add new records to the end of a file that already exists, you must: * Open the file OUTPUT, * Then in your JCL, the DD statement for the file needs to have

Hi folks. So I'm trying to append records to an existing dataset with COBOL... wich should be quite straight forward: OPEN EXTEND MY-FILE But it seems the compiler does not support that opening

Hi Dagfinn, In TK4, ZP60038 is probably not applied. Please consider to migrate to MVS-TK5. https://www.prince-webdesign.nl/tk5 Here is the user's guide with the migration

Hi I am trying to implement GETDTE on my TK4 UPD 8 system. I get an error in JOB4 in the installation process. I suspect this is related to missing usermods. Where are the usermod library

Hello Fish, Am 26.02.2024 um 19:25 schrieb Fish Fish <david.b.trout@...>: Yes, because I've not seen any adverse effects. In contrast, sending a SIGTERM to Hercules does leave the disk files

Hello Chris, Am 26.02.2024 um 11:15 schrieb cjar1950 via groups.io <cjar1950@...>: OS/390. :wq! PoC

Sorry, I had assumed you had a running system already. The absolute simplest way to get a driving system up is to use Customized Offerings Driver (COD).? It's a single volume z/OS at V2.4 (or 2.3),

Hi Shixinlong, Have a look at wwwunterse, it runs on windows platforms and Linux also https://www.ap4zlabs.com/wwunterse There is a Download button on the web page, which will ask you for some name

Hi Brian, Thanks so much for your time and detail steps. Two more questions per your reply: The first? is about pre-allocate datasets on hercules. Can i use dasdinit64 command to create it? or

This procedure works 100% of the time. On the source system, (the real mainframe in your case): This first step uses DFdss to dump the volume to a temporary dataset that we will process with TRS to

https://blog.mainframe.dev/2019/01/how-to-dump-all-disks-on-zos-system.html CCKDDUMP program on actual system. -- Mike A Schwab, Springfield IL USA Where do Forest Rangers go to get away from it

Hi Brian, yes i followed the step on the hercules home page. i converted the backup tape to aws format. and want to load it to the dasd inited. after i restored the resident volume i can ipl the zos

For serious entertainment I recommend running a Cobol compile on a ICT 1501 (with tape drives only - as no disk available). Even a smallish program say 2000 cards took over 30 minutes but the tape

The LEOs.? Fabulous machines.? Multiprogramming way, way back. We used a compiler language called CLEO.? It was a bit like COBOL but came out years before COBOL, I think. I can remember playing

Thanks for responding Tom... It is just a for-fun exercise to generate load and stress the system. I can certainly wait.

Hi Daniel, Could I suggest as an interim measure that you only generate and sort 9,999,999 records? The 7 digit limit was inherited from the original OS/360 S/M code that I should have addressed when

Hi Clem, I'm not sure if the dd option LIKE is available at your mvs level, if it is then an iefbr14 step before your copy would allocate the new dataset with minimal jcl Step 1 exec iefbr14 //newds?

Joe: Indeed, using your recommended blocking sped up the generate step by about 1/3 and the sort step by about 1/4. Thanks.

How about fixing your blocking to a more efficient blocksize? For a 3390, the tracksize is 56,664 bytes per track, 15 tracks per cylinder, and the optimal blocking is half-track. However, there is

Hi Alejandro, I have E35 exit code that can drop duplicates. Please correspond with me offline too avoid to many messages in the group and I can most likely amend it to fit your requirements. At