| PACS临床应用中常见故障的系统解决方案探讨 |
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| 引用本文： | 郭晋蜀,邱庆春.PACS临床应用中常见故障的系统解决方案探讨[J].中国医疗器械杂志,2008,32(4). |
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| 作者姓名： | 郭晋蜀 邱庆春 |
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| 作者单位： | 汕头大学医学院,物理学与信息学教研室,广东,汕头,515031 |
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| 摘 要： | 为应对PACS临床应用中发生率较高的故障,构建了三重模块冗余配置的持续可用影像服务器,通过其中的TMR表决器实现服务器核心的失效备援,由具有失效备援功能的超宽带或快速宽带SCSI接口分别连接双镜像硬盘、双RAID控制器和双DLT控制器以形成CA影像服务器的完整系统架构,再用CA影像服务器取代PACS中可能的单一故障点(single point of failure,SPOF)组件,使整个PACS具有了99.999%的最高系统可用性比率。TMR类CA影像服务器的诸多优势,使其非常适宜于大型医学影像网络和数据库的应用。
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| 关 键 词： | PACS 故障 失效备援 CA影像服务器 |
A Solution to Common Failures of the PACS |
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| GUO Jin-shu,QIU Qing-chun Physics and Informatics.A Solution to Common Failures of the PACS[J].Chinese Journal of Medical Instrumentation,2008,32(4). |
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| Authors: | GUO Jin-shu QIU Qing-chun Physics and Informatics |
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| Institution: | GUO Jin-shu,QIU Qing-chun Physics and Informatics Department,Medical College of Shantou University,Shantou,Guangdong Province,515031 |
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| Abstract: | Aiming at the frequent failures in the PACS clinical applications, a continuous availability(CA) image server with triple modular redundancy (TMR) is designed and used for failover at the CPU/memory level. The TMR voter, which is included in the CA image server, is applied to detection of failures. Through UW or FW SCSI interfaces, two mirror- image disks, two RAID controllers and two DLT controllers are respectively connected to the modules in the TMR and a complete CA image server is brought into being. The CA image server will replace the potential single point of failure (SPOF) in the PACS and increases its availability rate to 99.999%. The advantages of the TMR CA image server make itself well suitable for large-scale medical image network and database applications. |
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| Keywords: | PACS failure failover CA image server |
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