Data placement in video database system based on hierarchical storage
Zhu Zho · Ha'erbin gongye daxue xuebao · 2003
Multimedia application and storage technology development have presented many problems to mod- ern database system. How to place the video data efficiently in the tertiary storage library is a critical issue in that the video data is different from the traditional textual data. The video data placement based on hierarchical storage system with tape library as tertiary storage is discussed. It takes two steps to place the video data in the three-level hierarchical architecture. The first step is to layout the data to the proper level and position them according to their visiting frequencies and sizes. The second step is to address the tertiary storage workload balance that has been neglected now. This placement aims at improvement of capacity utilization and minimi- zing the storage cost. With this placement policy we can get a cost-effective hierarchical storage system with a workload balance tape library.