中心节点可迁移的医学影像存储网络软RAID系统的设计

目的:研究一种满足我院医学影像存储网络需求的网络分布式存储系统. 方法:按照医学影像存储网络的高可用性要求,利用网络软RAID和中心节点迁移技术,本文设计并实现了基于Linux操作系统的中心节点可迁移的网络软RAID系统-PACS RAID系统. 结果:使用Markov过程建立高可用性分析模型进行性能分析,与原有的基于中心节点的医学影像存储网络软RAID系统相比,中心节点可迁移的PACS RAID系统的可用性要高得多. 结论:PACS RAID系统可用性高,灵活性强,扩展方便,能有效地满足我院医学影像采集与传输系统存储网络的临床工作需求.

Design of network soft-RAID system based on center-node transplantation in medical image storage network

AIM: To develop a distributed network storage system in order to satisfy the demands of the medical image storage network in our hospital. METHODS: In accordance with the high-availability demands of medical image storage network, by the use of network soft-RAID and center-node transplantation technologies, and on the basis of the Linux operating system, this article designed and implemented the network soft-RAID system based on center-node transplantation-PACS RAID system. RESULTS: The Markov process to build a high-availability model for performance analysis was used, and it was found that the high-availability demands of the PACS RAID system was more effective compared with that of the network soft RAID system based on center-node. CONCLUSION: Because of high availability, strong flexibility and convenient extensibility, the PACS RAID system can meet effectively the demands of the storage network with the medical image collection and transmission system in our hospital.