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众所周知,在信息时代,文件数据信息的广泛共享成为体现信息价值的一个标志。传统的文件共享平台——LAN级的文件服务,已经不能满足用户在更加广阔的空间进行数据交流、共享的需求。随着企业规模不断扩大,业务部门分散在全国,乃至世界各地,实现快速地通过WAN访问和共享文件成为迫切的需要。包括Microsoft Office在内的很多应用程序设计的局限,直接限制了在WAN上应用的效率。同时,采用在各地的部门搭建多个对等存储平台实现数据迁移方案的高成本也增加了实现的难度。与响应时间只有1～2ms且稳定的局域网(LAN)相比,响应时间长达60～1000ms的广域网(WAN)不是为文件服务而生的,而Brocade Tapestry广域文件服务(Wide Area File Services,WAFS)则专为解决这个问题而来。WAFS不仅采用异步写入方式缩短操作的响应时间,本地还有数百GB的磁盘阵列用于存储使用最频繁的内容,起到Cache的作用,博科称之为Storage Cache over IP,加之对传输的IP内容加以优化,尽可能地减小了WAN上传输的数据量,成倍提高了WAN上传输文件的性能。 Wide-Area File Services(WAFS)的出现使得在异地访问数据中心具有和本地访问相同的性能。鉴于这种优势,WAFS可以让商业企业、研究院所、政府的多个分支机构或部门实现实时地管理和数据备份。在其他方面WAFS也表现了其绝对的优势:支持所有用户对备份数据的即时、全天候地读写讯问,可以和LAN技术
As we all know, in the information age, the extensive sharing of file data and information has become a symbol of the value of information. The traditional file sharing platform - LAN-class file services, can no longer meet the needs of users in a broader space for data exchange and sharing. As enterprises grow in size and business units spread across the country and across the world, it is imperative to quickly access and share files over the WAN. Limitations of many application designs, including Microsoft Office, directly limit the efficiency of applications over the WAN. At the same time, the high cost of implementing data migration schemes by setting up multiple peer-to-peer storage platforms in various departments also increases the difficulty of implementation. Wide area networks (WANs) with response times as long as 60 to 1000 ms are not for file services compared to stable local area networks (LANs) that respond only 1 to 2 ms. Brocade Tapestry Wide Area File Services WAFS) is designed to solve this problem. WAFS not only uses asynchronous write mode to shorten the response time of the operation, there are hundreds of GB of local disk array used to store the most frequently used content, play the role of Cache, Brocade called Storage Cache over IP, coupled with the transmission IP content to optimize, as much as possible to reduce the amount of data transmitted over the WAN, doubling the performance of WAN transmission of files. The advent of Wide-Area File Services (WAFS) enables remote access to data centers with the same performance as local access. Given this advantage, WAFS enables real-time management and data backup across multiple branches or departments within a business enterprise, research institute, or government. Among other things, WAFS has its absolute advantage: All users are allowed to read and write real-time, 24/7 access to backup data, and LAN technology