How Big Is VMS?

Is there any reason to use VMS today other than for existing applications that cannot be migrated? I've heard its reliability is legendary, but I've never tried it myself. The 1 year licensed VM seems excessively annoying. Is it just old and esoteric, or does it still have practical use? At least with Linux, multiple vendors release and support distros and it is mainstream, whereas with VMS, you'd be stuck with VSI.

I was actually surprised to see that there's been a release in the last 12 months - I had thought it was dead.

I used it extensively in the late 90's early 00's and really liked it. As a newb sysadmin at the time, the built-in versioning on the fs saved me from more than one self-inflicted fsck up.

I can't imagine there would be any green-field deployments in the last 10 years or so - I'm guessing it's just supporting legacy environments.

MCP and MVS (now called z/OS) are all still supported. Not sure whether MCP still receives updates though.

Right, but z/OS is part of a larger longer-running hardware strategy that, with virtualization, serves the needs of mixed-OS workloads and multi-decade tenures overseeing 24/7 systems.

The corpse of OpenVMS on the other hand is being reanimated and tinkered with, presumably paid for by whatever remaining support contracts exist, and also presumably to keep the core engineers occupied with inevitably fruitless busywork while occasionally performing the contractually required on-call technomancy on the few remaining Alpha systems.

VMS is dead... and buried, deep.

It's a shame it can't be open-sourced, just like Netware won't be open-sourced, and probably has less chance of being used for new projects than RiscOS or AmigaOS.