VMS

After following the article published earlier, you ended up with two OpenVMS 7.3 systems running on SIMH VAX emulator instances. Networking was configured, both over DECnet and TCP/IP. Next up: clustering those two systems.

Last week, I decided to pick up a pet project I started once but never got around to finish succesfully; building my own OpenVMS cluster. OpenVMS is one of the oldest operating systems that is still actively developed; it was originally created as VMS by Digital Equipment Corp (DEC, in short), which was bought by Compaq, which was bought by Hewlett-Packard. While most people know Linux and its UNIX roots, this system is a totally different cup of tea.

Three different architectures of machines can run VMS: the oldest being VAX, which was replaced by Alpha, which was in turn replaced by Itanium (the HP Integrity line of machines). Getting that kind of hardware for home use is not impossible, but would be both costly to purchase and hurting your power bill - and they're not exactly quiet either. Emulation is the way to go. Hence, a new goal: getting an emulated VMS cluster up and running. In this article we'll create two VMS machines and prepare them for clustering.