Design and Analysis of a Smart Optical Storage Read Head for Relational Database Applications

摘要

The commercialization of CD ROM drives has clearly demonstrated the ability of optical storage devices to meet the growing demand for archival data storage. However, with the continued expansion of electronic information resources, storage capacity requirements are expected to approach the terabit level for personal users and exceed the petabit level for databases and data warehouse systems. Further, many data intensive applications will also require real time access data access rates. Thus. designers for the next generation of archival storage systems have the challenging task of providing storage capacities several orders of magnitude larger than existing systems while maintaining current data access times.