IOMan:一种支持多操作系统远程启动和运行的I/O管理方法

IOMan: An I/O Management Method Supporting Multi-OS Remote Boot and Running

为了降低用户使用和维护计算机系统的成本,基于透明计算模式提出了一种工作在局域网环境下的I/O管理方法:IOMan.IOMan只是用软件方法在客户端设置磁盘I/O重定向机制,按需动态下载数据,而不需要修改当前常用的操作系统如Windows的启动机制,也不影响其他I/O操作,能够支持多种操作系统的远程启动和应用程序的运行.IOMan基于客户机/服务器模型,包括I/OClient和I/OServer两个部分,其中I/OClient工作在客户端,I/OServer工作在服务器端.I/OClient通过重新定义访问磁盘的BIOS中断处理程序以及创建虚拟本地磁盘,将I/O请求发送给服务器;I/OServer响应客户端请求,读写服务器上存储的虚拟硬盘文件,然后以扇区形式将数据发送给I/OClient.

To reduce the cost of users using and maintaining computer systems, based on transparence computing, an I/O management method, IOMan, is presented, which works on a LAN environment. IOMan only uses software solution to setup a disk access redirection mechanism which needn＇t modify the boot mechanism of commodity operating systems such as Windows, and also doesn＇t affect the other I/O operations, to support multi-OS remote boot and applications running in LAN. IOMan is constructed as client/server architecture, including two parts： I/0 client and I/0 server. 1/0 client runs on the cnent, ano I/0 server works on the server. I/O client redefines the processing program of BIOS interrupt accessing the disk, and creates a virtual local disk, to send I/O requests to I/O server. I/O server responses I/O requests from the clients and accesses the virtual disk files stored on the server, and then sends the data to the clients in the form of sectors.