Abstract: SonD system is a new type computing environment based on network storage, which provides a simple method for deployment and management of computers in very large scale computing environment. The method of sharing cache between virtual storage devices in SonD system implements the memory cache sharing of the physical sharing data of virtual storage devices on file level, and efficiently avoids the problem of data consistency because of cache sharing. It is proved that the method improves the performance of SonD system efficiently.

Key words: SonD system, cache sharing, virtual storage device

摘要： 蓝鲸服务点播系统(SonD系统)是一个基于网络存储的新型计算环境，为大规模计算环境中计算机的部署和管理提供了有效手段。SonD系统中虚拟存储设备共享cache方法，在文件一级实现了对SonD系统中虚拟存储设备间物理共享数据在内存中cache的共享，有效地避免了共享cache后带来的数据的一致性问题。实验数据表明，虚拟存储设备共享cache方法提高了SonD系统的整体性能。

关键词: 蓝鲸服务点播系统, 共享cache, 虚拟存储设备

CLC Number: 

• TP311