Implementation of a Campuswide Distributed Mass Storage Service: The Dream VersusReality

摘要

In 1990, a technical team at NASA Lewis Research Center, Cleveland, Ohio, begandefining a Mass Storage Service to provide long-term archival storage, short-term storage for very large files, distributed Network File System access, and backup services for critical data dw resides on workstations and personal computers. During the process of building the service from the commercial technologies available, our Mass Storage Team refined the original vision and learned from the problems and mistakes that occurred. We also enhanced some technologies to better meet the needs of users and system administrators. This report describes our team's journey from dream to reality, outlines some of the problem areas that still exist, and suggests some solutions.