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    • 5. 发明申请
    • Single Instantiation Method Using File Clone and File Storage System Utilizing the Same
    • 使用文件克隆和文件存储系统的单实例化方法
    • US20130191350A1
    • 2013-07-25
    • US13387614
    • 2012-01-25
    • Tomonori EsakaTakaki NakamuraHitoshi KameiMasakuni Agetsuma
    • Tomonori EsakaTakaki NakamuraHitoshi KameiMasakuni Agetsuma
    • G06F17/30
    • G06F17/30156G06F17/30091H04L67/1097
    • In file de-duplication using hash value comparison, hash values of all target files must be calculated and actual data of all files must be read for hash value calculation, so that the processing time was long. The present invention provides a file storage system comprising a controller and a volume storing a plurality of files, the volume including a first directory storing a first file and a second file and a second directory storing a third file being created, wherein the controller migrates actual data of the second file to the third file, sets up a management information of the second file so that the third file is referred to when the second file is read, and if the sizes of actual data of the first file and the actual data of the third file are identical and the binaries of the actual data of the first file and the actual data of the third file are identical, sets up a management information of the first file to refer to the third file when reading the first file.
    • 在使用散列值比较的文件重复数据删除中,必须计算所有目标文件的散列值,并且必须读取所有文件的实际数据以进行哈希值计算,以便处理时间长。 本发明提供了一种包括控制器和存储多个文件的卷的文件存储系统,所述卷包括存储第一文件和第二文件的第一目录和存储正在创建的第三文件的第二目录,其中所述控制器迁移实际 将第二文件的数据提供给第三文件,建立第二文件的管理信息,以便在读取第二文件时参考第三文件,并且如果第一文件的实际数据的大小和实际数据的大小 第三文件是相同的,并且第一文件的实际数据和第三文件的实际数据的二进制文件是相同的,当读取第一文件时,设置第一文件的管理信息以引用第三文件。
    • 7. 发明授权
    • Information processing apparatus, information processing method and storage system using cache to reduce dynamic switching of mapping between logical units and logical devices
    • 信息处理装置,使用缓存的信息处理方法和存储系统来减少逻辑单元和逻辑设备之间的映射的动态切换
    • US07624230B2
    • 2009-11-24
    • US11593976
    • 2006-11-06
    • Hitoshi KameiTakaki Nakamura
    • Hitoshi KameiTakaki Nakamura
    • G06F12/00
    • G06F12/0871G06F3/0601G06F12/0873G06F2003/0697
    • An information processing system having a storage apparatus and a file sharing server. The storage apparatus comprises a plurality of storage devices for providing logical devices to store data; and a first processing unit for providing virtual logical units based on a mapping relation between the logical devices and the virtual logical units and being operative to switch the mapping relation dynamically according to an external request. The file sharing server comprises a cache memory including cache extents and a second processing unit controlled to provide the virtual logical units of the storage apparatus to a host system by using the cache extents, managing the mapping relation between the logical devices and the virtual logical units. The mapping between a logical unit and a logical device is dynamically switched as the logical devices store data provided from the host system according to external requests.
    • 一种具有存储装置和文件共享服务器的信息处理系统。 存储装置包括用于提供用于存储数据的逻辑设备的多个存储装置; 以及第一处理单元,用于基于逻辑设备和虚拟逻辑单元之间的映射关系提供虚拟逻辑单元,并且可操作以根据外部请求动态地切换映射关系。 文件共享服务器包括缓存区和缓存区的第二处理单元,第二处理单元通过使用高速缓存区,将存储装置的虚拟逻辑单元提供给主机系统,管理逻辑设备与虚拟逻辑单元之间的映射关系 。 当逻辑设备根据外部请求存储从主机系统提供的数据时,动态地切换逻辑单元和逻辑设备之间的映射。
    • 10. 发明申请
    • STORAGE SYSTEM AND FILE ACCESS DETERMINATION METHOD OF THE SAME
    • 存储系统和文件访问确定方法
    • US20120030242A1
    • 2012-02-02
    • US12811997
    • 2010-03-12
    • Takaki NakamuraHitoshi Kamei
    • Takaki NakamuraHitoshi Kamei
    • G06F17/30
    • G06F21/6218G06F17/3007G06F2221/2141
    • Problem: Providing a storage system which can be applied to a broad range of access forms to the file and, at the same time, in which the performance of file access control processing is improved. Solution: The storage system stores a part of the access control information of a variable size in the basic attribute area of the file, and stores the storage format information in the basic attribute area of the file or in the file system metadata area. At the time of processing the access to the file, with reference to the storage format information, the storage system decodes a part of the access control information into an access mask bit string as needed, and performs the preceding access control processing. If whether access is permitted or not can be determined through the preceding access control processing, the access control processing is performed while, whether access is permitted or not cannot be determined, performs the access control processing based on the extended attribute information.FigureFIG. 7
    • 问题:提供可应用于文件的广泛访问形式的存储系统,同时提高文件访问控制处理的性能。 解决方案:存储系统将可变大小的访问控制信息的一部分存储在文件的基本属性区域中,并将存储格式信息存储在文件的基本属性区域或文件系统元数据区域中。 在处理对文件的访问时,参考存储格式信息,存储系统根据需要将访问控制信息的一部分解码为访问掩码位串,并执行前述访问控制处理。 如果是否允许访问是否可以通过以前的访问控制处理来确定,则在无法确定是否允许访问的情况下执行访问控制处理,基于扩展属性信息执行访问控制处理。 图。 7