This paper mainly introduced key techniques in design of OSCAR buffer manager including asynchronous I/O, page r/w checking, policy of page replacement and dynamically managing memory.

• 主要介绍在设计OSCAR缓冲区管理器中使用的关键技术，包括异步I/O、页面读写校验、页面替换策略及动态调整缓冲区物理内存技术。