It's nearly 2022 and the *nix world still doesn't have the seamless clustering support that VMS had in the 80s. K8s gets close, but it's not there quite yet.
I never used it myself, but I was told DEC had transplanted at least part of the clustering tech to Tru64.
Of course, that got cancelled after HP bought Compaq/DEC and did not want to support two Unix systems. IIRC, they promised to port the cluster stuff to HP-UX, but it looks like that never happened.
Nowadays the only thing close to VMS in spirit is Windows, although it requires a good dosis of Windows Internals and MSDN/Technet archelogy to get that point.
Naturally it is only as inspiration, for the real deal OpenVMS.
I keep seeing this a lot. What spirit of VMS survived in Windows ? Security in windows is a disaster, clustering nonexistent, filesystem is edges behind.