会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明授权
    • Single instance store for file systems
    • 文件系统的单实例存储
    • US06477544B1
    • 2002-11-05
    • US09354624
    • 1999-07-16
    • William J. BoloskyJohn R. DouceurScott M. CutshallRichard F. RashidNathan P. MyhrvoldDavid A. Goebel
    • William J. BoloskyJohn R. DouceurScott M. CutshallRichard F. RashidNathan P. MyhrvoldDavid A. Goebel
    • G06F1730
    • G06F17/3015Y10S707/99931Y10S707/99933Y10S707/99953
    • A method and system for storing the data of files having duplicate content, by maintaining a single instance of the data, and providing logically separate links to the single instance. Files of duplicate content have their data stored in a common store file by a single instance store (SIS) facility, which also converts the original file or files to links to that common store file and creates additional links thereto as needed. The SIS facility may reside above a file system as a filter driver. File system requests directed to the link file (e.g., open, write, read, close and delete) reach the SIS filter, which then transparently handles each request as if the link file was a normal file. To preserve logical separation, writes to a SIS link file are to the link file, and the written portion recorded as dirty. The SIS filter intercepts SIS read requests, and reads clean portions from the common store file and any dirty portions from the link file. When the link file is closed, the common store file also may be closed, and, if the link file has been written, the non-dirtied portions of the link file are filled in with clean data from the common store file, and the link file reconverted to a normal file. Security is provided to prevent unauthorized access to the common store files, as is a volume check facility that repairs any inconsistencies in SIS metadata.
    • 一种用于通过维护单个数据实例来存储具有重复内容的文件的数据的方法和系统,以及向单一实例提供逻辑上分离的链接。 重复内容的文件通过单一实例存储(SIS)设施将其数据存储在公共存储文件中,该设备还将原始文件或文件转换为该通用存储文件的链接,并根据需要创建其他链接。 SIS工具可以作为过滤器驱动程序驻留在文件系统之上。 指向链接文件(例如打开,写入,读取,关闭和删除)的文件系统请求到达SIS过滤器,然后透明地处理每个请求,就像链接文件是正常文件一样。 为了保留逻辑分隔,对SIS链接文件的写入是链接文件,写入的部分记录为脏。 SIS过滤器拦截SIS读取请求,并从公共存储文件读取干净的部分以及链接文件中的任何脏部分。 当链接文件被关闭时,公共存储文件也可以被关闭,并且如果链接文件已被写入,链接文件的非污染部分用来自公共存储文件的干净的数据填充,并且链接 文件重新转换为正常文件。 提供安全性以防止对公用存储文件的未经授权的访问,以及修复SIS元数据中的任何不一致的卷检查工具。
    • 10. 发明授权
    • File server system and method for scheduling data streams according to a distributed scheduling policy
    • 用于根据分布式调度策略调度数据流的文件服务器系统和方法
    • US06401126B1
    • 2002-06-04
    • US09266194
    • 1999-03-10
    • John R. DouceurWilliam J. Bolosky
    • John R. DouceurWilliam J. Bolosky
    • G06F1516
    • H04N21/2326H04L29/06H04L67/10H04L67/32Y10S707/99937
    • A distributed file server system has multiple data servers connected to stream data files continuously over a network to multiple clients. Data files are distributed across the data servers so that data blocks of the data files are stored at manage distributed portions of a schedule. Each data server sees a different portion of the schedule, but no one data server sees the whole schedule. The scheduler facilitates service of requested data streams from its corresponding data server according to a schedule portion that is available to the data server. The scheduler determines whether to insert a new data stream into the current slot it presently owns in its schedule portion, or to wait for a subsequent slot in the schedule based on a thrifty policy.
    • 分布式文件服务器系统具有多个数据服务器连接,可通过网络将数据文件连续流式传输到多个客户端。 数据文件分布在数据服务器上,使得数据文件的数据块被存储在调度表的管理分布式部分。 每个数据服务器看到调度的不同部分,但没有一个数据服务器看到整个调度。 调度器根据可用于数据服务器的调度部分便利来自其对应数据服务器的请求数据流的服务。 调度器确定是否将新数据流插入其当前在其调度部分中拥有的当前时隙中,或者基于节俭策略等待该调度中的后续时隙。