A Study on Hierarchical Storage System for Video Retrieval and Preview System

Abstract

Hierarchical storage system for video retrieval and preview system, used in broadcast center was studied. Performance of hierarchical storage system was studied with two parameters-average access time and occupied time. Average access time is time period from start accessing to library to start sending reference video data to HDD. Occupied time is time period from unloading the drive to end of sending reference video data. The result shows that hierarchical storage system with optical disk storage has shorter average access time, but has longer occupied time, compared to hierarchical storage system with tape storage.