About 10 years ago I was working at a firm in Southern California. They hired a new VP over the technology area. His goal in life was to get off the mainframe. He convinced the powers above that he could run the entire workload currently on a S/390 on a quad processor running Windows, saving the company tons of money. One of the many things people who suggest migration off of mainframes fail to realize is that you can run big iron at 100% all day long with no real impact. You can run a Windows or Unix box at only about 50% max, maybe 60%.
128 quad processors later, and an increase in the budget of almost $2M over the mainframe, they still could not handle the workload. I have no idea where the insanity ended (I left the firm for another job, having no interest becoming a Windows admin as opposed to an IBM s/p). The last I heard some years ago, they were still running z/OS on a small box because one of the major systems written in assembler absolutely could not be replaced/reproduced in any software that provided the response times required for that application. Wonder where they are now and what the IT budget is. Ramsey On Tue, May 11, 2021 at 6:45 AM Colin Paice <[email protected]> wrote: > It would be interesting to see the true cost after migrating to the new > systems. 20 years ago I remember seeing a comparison which showed going > off the main frame was going to save Mega bucks for someone. When you dug > into it little things like > > 1. They had configured a top of the range z/OS box and it ran at 10% > The mid range boxes were spec'ed just right. > 2. With the mainframe the costs included backing up data, and taking > tapes off site etc. The midrange did no backups. > > And so on... But let's not look at the facts too closely ... the director > said "let us look Strategically!" I met people from the company a few > years later. They were not happy bunnies - "with z/OS it just worked" > they sighed into their beer. > > On Tue, 11 May 2021 at 12:12, Robert Prins <[email protected]> > wrote: > > > > > > https://www.infoworld.com/article/3617936/how-companies-are-moving-on-from-cobol.html > > > > Commenting on the many very questionable claims is of course not > possible, > > sigh.... > > -- > > Robert AH Prins > > robert.ah.prins(a)gmail.com > > The hitchhiking grandfather - https://prino.neocities.org/ > > Some REXX code for use on z/OS - > > https://prino.neocities.org/zOS/zOS-Tools.html > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to [email protected] with the message: INFO IBM-MAIN > > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
