Abstract: In order to meet the need of sharing network recorder， a new Networkattached Recorder Server(NRS) based on iSCSI protocol was designed. NRS combined virtual recorder technology with iSCSI protocol， realized the network transparent map of recorder， and improved the performance of the network share greatly. It adopted multithread and disc file buffer technology to share recorder of multiusers， and to short the response time of recorder. The design of NRS was described in detail， and the corresponding testing and performance analysis were carried out.

Key words: network-attached recorder server, iSCSI, SAMBA

摘要： 为了解决网络共享刻录机的需要，设计实现了一个新的基于iSCSI协议的附网刻录服务器(Networkattached Recorder Server，NRS)。NRS服务器采用虚拟刻录机技术同iSCSI协议相结合，既实现了刻录机的网络透明映射，也提高了网络共享的性能。采用多线程和磁盘文件缓存技术，使多用户可同时共享刻录机，也缩短了用户刻录的响应时间。详细介绍了这种NRS服务器的设计方案，并进行了相应的试验测试和性能分析。

关键词: 附网刻录服务器, iSCSI, SAMBA