For OpenVMS users, scalability has always equated with clustering and with a maximum supported 96 nodes in a cluster. “OpenVMS is the most scalable operating system on the planet” - is that still true today? Yes and no.
As a strategist I am noticing a number of themes emerging when I talk with customers about why they are moving their applications to a virtualised infrastructure (generally within a Cloud environment). These themes are Flexibility, Scalability, Smart capabilities, Usability and Cost; from an OpenVMS perspective I can also add lack of skilled resources and proprietary hardware.