Simulation Analysis of the TBM Memory System: An On-Line Mass Storage System

摘要

The TBM (Trillion Bit Memory) System is an on-line, high density memory system with a capacity of up to three trillion bits. It is a cost efficient method of storing large data bases on-line with an effective response similar to disc storage, and uses two-inch wide video tape with address. Some features of the TBM Memory System are: (1) Complete system redundance; (2) Modular expansion; (3) Hardware and data transfer reliability; (4) Large data base on-line, (5) Rapid response; and (6) Low cost per bit. Major applications of a mass storage system are: (1) The replacement of large conventional on-line and off-line tape library systems; (2) Supplements to enlarge disc memory systems; and (3) the provision of on-line storage for large data bases. Since the TBM Memory System is indeed very complicated, a simulation model was developed to help the user understand the system and to predict the TBM performance under various configurations and loading conditions. In order to help the user select the proper configuration for his installation, a sensitivity analysis is also provided. (Author)