This paper studies the general function of storage management software based on SAN. Firstly, the wait control table function and timeout function is adpated to the system of backup and recovery so that they improve the performance and availablity.

• 本文研究了基于SAN的存储管理软件整体功能，提出了等待控制表机制和进程间的超时机制，应用于备份和恢复管理系统中，提高了备份和恢复管理系统的性能和可靠性。