存储区域网络(Storage Area Network,SAN)的诞生,使存储空间得到更加充分的利用。FC-SAN是将存储设备连接光纤通道(Fibre Channel,FC)从而集成的一个高速网络,实现了数据的快速、高效、可靠传输。本文简要介绍了FC协议的基本结构,着重...存储区域网络(Storage Area Network,SAN)的诞生,使存储空间得到更加充分的利用。FC-SAN是将存储设备连接光纤通道(Fibre Channel,FC)从而集成的一个高速网络,实现了数据的快速、高效、可靠传输。本文简要介绍了FC协议的基本结构,着重分析了FC接口的功能和结构组成,通过FC接口字同步机维护、字同步、流控等功能实现了FC-SAN网络的稳定传输。展开更多
Fibre channel storage area networks (FC-SAN) are effective solutions to address storage man- agement problems caused by very large volumes of data. But the expense of fibre channel devices limits FC-SAN applications...Fibre channel storage area networks (FC-SAN) are effective solutions to address storage man- agement problems caused by very large volumes of data. But the expense of fibre channel devices limits FC-SAN applications. The use of IP networks instead of fibre channel networks will reduce SAN cost, but will also reduce the performance. Therefore, small computer system interface (SCSI) devices were consid- ered to replace FC disks to reduce the SAN cost. A driver for the FC network adapter and the FC target, de- signed and implemented to support this structure, obeys the SCSI protocol and works in target mode with 200 MB/s bandwidth. The FC target architecture and implementation were compared with the FC initiator. The SCSI command transfer process in the FC layer was described. The performance test results show that the maximum I/O throughput reachs 167 MB/s for read requests and 196 MB/s for write requests (FC band- width is 200 MB/s), verifying that the FC target is very efficient. The modularization, efficiency, and low cost of the FC target will enable SAN and fibre channel to be more widely used in applications.展开更多
文摘存储区域网络(Storage Area Network,SAN)的诞生,使存储空间得到更加充分的利用。FC-SAN是将存储设备连接光纤通道(Fibre Channel,FC)从而集成的一个高速网络,实现了数据的快速、高效、可靠传输。本文简要介绍了FC协议的基本结构,着重分析了FC接口的功能和结构组成,通过FC接口字同步机维护、字同步、流控等功能实现了FC-SAN网络的稳定传输。
基金Supported by the National High-Tech Research and Development Program (863) of China (No.2001AA111110)
文摘Fibre channel storage area networks (FC-SAN) are effective solutions to address storage man- agement problems caused by very large volumes of data. But the expense of fibre channel devices limits FC-SAN applications. The use of IP networks instead of fibre channel networks will reduce SAN cost, but will also reduce the performance. Therefore, small computer system interface (SCSI) devices were consid- ered to replace FC disks to reduce the SAN cost. A driver for the FC network adapter and the FC target, de- signed and implemented to support this structure, obeys the SCSI protocol and works in target mode with 200 MB/s bandwidth. The FC target architecture and implementation were compared with the FC initiator. The SCSI command transfer process in the FC layer was described. The performance test results show that the maximum I/O throughput reachs 167 MB/s for read requests and 196 MB/s for write requests (FC band- width is 200 MB/s), verifying that the FC target is very efficient. The modularization, efficiency, and low cost of the FC target will enable SAN and fibre channel to be more widely used in applications.
