ITschak Mugzach wrote: >I wonder if anyone (vendors, maybe) has an insight into the mainframe market >...
(And then after various discussion): >Strange it is so hard to collect this information. Why? It's proprietary information for IBM about their market. As a vendor for the last 35 years, I've wished for this information, but was never surprised that it wasn't available. Why would they want to release it? Sure, in boom times - at one point they said there were 20,000 VM installations. But that was a long time ago, and many of those were probably 9370s in a closet that were never really used. Now? All it would do is provide fodder for folks saying "See, the mainframe business is shrinking". (Whether that's true or not is irrelevant: the number of licenses is surely shrinking, as companies consolidate and few if any new z shops are created.) Best guesses I've seen in recent years: low thousands for z/OS; fewer for z/VM (still > 1K; I think); fewer still for z/VSE; and 150 max for z/TPF (perhaps half that). -- ...phsiii Phil Smith III Senior Architect & Product Manager, Mainframe & Enterprise Distinguished Technologist Micro Focus (Voltage) ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
