This article to the database memory system design from the introversion on the database application system memory design, the floppy disk layout optimization and the disposition, the RAID performance and the fail-safe analysis and so on several aspects carries on the statement. 对数据库存储系统设计从内向外就数据库应用系统内存设计、磁盘布局优化和配置、RAID性能和可靠性分析等几个方面进行了研究。