I don't have VMS experience, but rather AS/400 and iSeries experience. The difference vs generic purpose OS (Linux, Windows, OSX) is that the AS/400, and I'm g

I don't have VMS experience, but rather AS/400 and iSeries experience. The difference vs generic purpose OS (Linux, Windows, OSX) is that the AS/400, and I'm going to assume VMS since they operated in similar markets, had these features baked in by the manufacturer. OS/400 on the AS/400 was a menu based system. If the menu option existed, the feature was available, and it was as simple as flipping the bit to YES to enable a feature. Enable clustering? Select Yes, add the information of the cluster and you were done. It just worked. Did it work well? I guess. There was no way to know if it could be done better since it was a manufacturer's enabled feature. Of course Linux, Windows, OSX can do the same thing as OS/400 on AS/400 but with a lot of configuration, and a lot of jumping through hoops [it's not called Hadoop for nothing ;-)].