When I first joined, the company was Storage Technology Corp (STC)., but changed names to StorageTek (STK) halfway through my tenure. They were attempting to launch a mainframe to compete with IBM. I was part of the operating systems development team that including Mogens Pedersen, Robert J. Racer, and David Serls, where I programmed the the Initial Program Loader (IPL), scheduler/dispatcher module, and a collection of system utilities.
The project also included the Virtual Storage System (VSS) which drew on my experience with Pierce Data Systems. The VSS project attempted to optimize utilization of storage. The VSS system monitored data. Active files were migrate to closer and faster storage, less requested data moved to slower or offline storage. The content of DASDs was dynamically reorganized to achieve maximum density.
After $22 million and several insurmountable problems, the project was cancelled.