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1. 发明授权

US08316066B1 Shadow directory structure in a distributed segmented file system 有权
标题翻译：分布式分段文件系统中的影子目录结构
公开(公告)号：US08316066B1
公开(公告)日：2012-11-20
申请号：US11841552
申请日：2007-08-20
申请人： Sudhir Srinivasan , Boris Zuckerman
发明人： Sudhir Srinivasan , Boris Zuckerman
IPC分类号： G06F7/00
CPC分类号： G06F17/30094 , Y10S707/99953 , Y10S707/99955
摘要： A file server is provided for use in an association of devices that implements a distributed-file system, the association of devices including file servers that each are configured to control separate segments of the distributed-file system. The file server includes a memory interface configured to communicate with a memory storing at least one of the segments of the distributed file system, and a processor coupled to the memory interface and configured to: identify a file system object that resides on a first segment in the distributed file system and that is directly pointed to by a first remote ancestor directory that resides on a second segment separate from the first segment; and store a first shadow tree entry in a selected segment other than the second segment, the first shadow tree entry providing a pointer to the file system object and being disposed in a shadow tree, where the first shadow tree entry provides an alternative to the first remote ancestor directory to access the file system object in the distributed file system.
摘要翻译：文件服务器被提供用于实现分布式文件系统的设备的关联，包括被配置为控制分布式文件系统的分段的文件服务器的设备的关联。文件服务器包括被配置为与存储分布式文件系统的至少一个段的存储器进行通信的存储器接口，以及耦合到存储器接口的处理器，并且被配置为：识别驻留在第一段上的文件系统对象分布式文件系统，并且由驻留在与第一段分开的第二段的第一远程祖代目录直接指向; 并且将第一影子树条目存储在除了所述第二片段之外的所选片段中，所述第一影子树条目提供指向所述文件系统对象的指针并被布置在影子树中，其中所述第一影子树条目提供所述第一影子树条目远程祖先目录访问分布式文件系统中的文件系统对象。

2. 发明授权

US08103639B1 File system consistency checking in a distributed segmented file system 有权
标题翻译：分布式分段文件系统中的文件系统一致性检查
公开(公告)号：US08103639B1
公开(公告)日：2012-01-24
申请号：US12435958
申请日：2009-05-05
申请人： Sudhir Srinivasan , Boris Zuckerman
发明人： Sudhir Srinivasan , Boris Zuckerman
IPC分类号： G06F17/00
CPC分类号： G06F17/30094 , Y10S707/99953 , Y10S707/99955
摘要： A method of performing a file system consistency check in a distributed, segmented file system, includes: analyzing primary objects of a first segment of the file system to determine if a first primary object points to a second primary object of a second segment separate from the first segment, storing, if the first primary object points to the second primary object of the second segment, a first indication indicating that the first primary object points to the second primary object of the second segment, the first indication indicating an expected location of the second primary object; analyzing a shadow directory of the selected segment to determine an expected location of a third primary object, and an expected pointer of the third primary object indicative of a location and a name of a fourth primary object, the third primary object being contained in a segment other than the first segment; and storing a second indication indicating the expected location of the third primary object and the expected pointer of the third primary object.
摘要翻译：在分布式分段文件系统中执行文件系统一致性检查的方法包括：分析文件系统的第一段的主要对象，以确定第一主要对象是否指向与第一段，如果所述第一主要目标指向所述第二段的所述第二主要目标，则存储指示所述第一主要目标指向所述第二分段的所述第二主要对象的第一指示，所述第一指示指示所述第二分段的预期位置第二主要对象分析所选择的段的影子目录以确定第三主要对象的预期位置，以及指示第四主要对象的位置和名称的第三主要对象的预期指针，第三主要对象被包含在段中除第一段外; 以及存储指示所述第三主要对象的预期位置和所述第三主要对象的预期指针的第二指示。

3. 发明授权

US08935307B1 Independent data access in a segmented file system 有权
标题翻译：分段文件系统中的独立数据访问
公开(公告)号：US08935307B1
公开(公告)日：2015-01-13
申请号：US10425927
申请日：2003-04-29
申请人： Sudhir Srinivasan , Boris Zuckerman , Steven A. Orszag , Philip Eric Jackson
发明人： Sudhir Srinivasan , Boris Zuckerman , Steven A. Orszag , Philip Eric Jackson
IPC分类号： G06F17/30
CPC分类号： G06F17/30194 , G06F3/0605 , G06F3/0632 , G06F3/067 , Y10S707/99953
摘要： A first file server for use with a distributed-file system includes a processor configured to determine that an incoming file system communication is associated with a first portion of the distributed-file system associated with a second file server, send a first authorization request to the second file server to request authorization to directly access the first portion of the distributed-file system, analyze a first authorization response from the second file server to determine at least one storage location associated with the first portion of the distributed-file system, determine that an incoming second authorization request received from a third file server is associated with a second portion of the distributed-file system associated with the first file server, obtain data indicative of the second portion of the distributed-file system, and send a second authorization response that includes the data.
摘要翻译：用于分布式文件系统的第一文件服务器包括处理器，其被配置为确定传入文件系统通信与与第二文件服务器相关联的分布式文件系统的第一部分相关联，向第二文件服务器发送第一授权请求第二文件服务器请求授权以直接访问分布式文件系统的第一部分，从第二文件服务器分析第一授权响应以确定与分布式文件系统的第一部分相关联的至少一个存储位置，确定从第三文件服务器接收的传入的第二授权请求与与第一文件服务器相关联的分布式文件系统的第二部分相关联，获得指示分布式文件系统的第二部分的数据，并发送第二授权响应包括数据。

4. 发明授权

US07836017B1 File replication in a distributed segmented file system 有权
标题翻译：文件复制在分布式分段文件系统中
公开(公告)号：US07836017B1
公开(公告)日：2010-11-16
申请号：US11772800
申请日：2007-07-02
申请人： Sudhir Srinivasan , Boris Zuckerman , Vitaly Oratovsky , Manny Ye , Dinesh Venkatesh , Kevin J. Shea , Shaji O. John
发明人： Sudhir Srinivasan , Boris Zuckerman , Vitaly Oratovsky , Manny Ye , Dinesh Venkatesh , Kevin J. Shea , Shaji O. John
IPC分类号： G06F17/30
CPC分类号： G06F17/30212
摘要： A system includes storage configured to store file system entities, including directories and files, residing in segments of a distributed, segmented single file system, file servers configured to implement the single file system with separate ones of the file servers controlling metadata of separate ones of the segments, and a controller configured to control storage of files in the file system such that for a master file stored in a first segment, a first replica of the master file will be stored in a second segment that is physically separate from the first segment, the controller being further configured to control storage of directories in the file system such that a single directory will include identifiers for the master file and the first replica.
摘要翻译：系统包括存储器，其被配置为存储位于分布式，分段的单个文件系统的段中的文件系统实体，包括目录和文件，被配置为实现单个文件系统的文件服务器，该单个文件系统具有控制单独文件系统的元数据的单独文件系统所述段和控制器被配置为控制所述文件系统中的文件的存储，使得对于存储在第一段中的主文件，所述主文件的第一副本将被存储在物理上与所述第一段分开的第二段中控制器被进一步配置为控制文件系统中的目录的存储，使得单个目录将包括主文件和第一副本的标识符。

5. 发明授权

US07890529B1 Delegations and caching in a distributed segmented file system 有权
标题翻译：分布式分段文件系统中的代理和缓存
公开(公告)号：US07890529B1
公开(公告)日：2011-02-15
申请号：US11676136
申请日：2007-02-16
申请人： Sudhir Srinivasan , Boris Zuckerman , Irina P. Slutsky
发明人： Sudhir Srinivasan , Boris Zuckerman , Irina P. Slutsky
IPC分类号： G06F17/30
CPC分类号： G06F17/30094 , Y10S707/99953 , Y10S707/99955
摘要： A system for implementing a distributed, segmented file system includes file servers that each are configured to control separate segments of the distributed-file system, the file servers including: a memory interface configured to communicate with a memory storing at least one of the segments of the distributed file system; a communication interface coupled to at least another of the file servers; and a processor coupled to the memory interface and the communication interface and configured to control, read, and write to file system objects stored in the memory. The system further includes means for transferring permission for access to a requested file system object from an owner server currently controlling a segment where a requested object resides to an access-requesting server.
摘要翻译：用于实现分布式分段文件系统的系统包括文件服务器，每个文件服务器被配置为控制分散文件系统的单独段，文件服务器包括：存储器接口，被配置为与存储器存储至少一个分布式文件系统; 耦合到所述文件服务器中的至少另一个的通信接口; 以及耦合到存储器接口和通信接口并被配置为控制，读取和写入存储在存储器中的文件系统对象的处理器。该系统还包括用于从当前控制所请求的对象驻留的段到所访问请求服务器的所有者服务器传送对所请求的文件系统对象的访问权限的装置。

6. 发明授权

US07650341B1 Data backup/recovery 有权
标题翻译：数据备份/恢复
公开(公告)号：US07650341B1
公开(公告)日：2010-01-19
申请号：US11615534
申请日：2006-12-22
申请人： Vitaly M. Oratovsky , Sudhir Srinivasan , Benjamin Levin , Kevin J. Shea , Shaji O. John , Boris Zuckerman , Steven A. Orszag
发明人： Vitaly M. Oratovsky , Sudhir Srinivasan , Benjamin Levin , Kevin J. Shea , Shaji O. John , Boris Zuckerman , Steven A. Orszag
IPC分类号： G06F17/30
CPC分类号： G06F11/1435 , G06F11/1451 , G06F11/1456 , G06F11/1464 , G06F11/1469 , G06F2201/82
摘要： An apparatus in a first device of an association of devices includes a processor configured to: communicate with a storage device storing segments of a distributed, segmented single first file system including file system entities residing in segments and including at least portions of one of files and directories, the association of devices including file servers that control metadata of separate segments of the single first file system, including metadata of file system entities residing in the segments; communicate with a backup module configured to backup file system data of a second file system different from a distributed, segmented file system; analyze data in the single first file system to determine data associated with different segments of the single first file system; and present data from the single first file system to the backup module in accordance with what data belong to which segment of the single first file system.
摘要翻译：设备关联的第一设备中的装置包括：处理器，被配置为：与存储分段的，分段的单个第一文件系统的段的存储设备进行通信，所述分段的，分段的单个第一文件系统包括驻留在段中的文件系统实体，并且包括至少部分文件和目录，包括控制单个第一文件系统的单独段的元数据的文件服务器的设备的关联，包括驻留在段中的文件系统实体的元数据; 与配置为备份与分布式分段文件系统不同的第二文件系统的文件系统数据的备份模块进行通信; 分析单个第一文件系统中的数据以确定与单个第一文件系统的不同段相关联的数据; 并根据什么数据属于单个第一文件系统的哪个段，将数据从单个第一文件系统呈现给备份模块。

7. 发明授权

US07546319B1 File system consistency checking in a distributed segmented file system 有权
标题翻译：分布式分段文件系统中的文件系统一致性检查
公开(公告)号：US07546319B1
公开(公告)日：2009-06-09
申请号：US10833355
申请日：2004-04-28
申请人： Sudhir Srinivasan , Boris Zuckerman
发明人： Sudhir Srinivasan , Boris Zuckerman
IPC分类号： G06F12/00
CPC分类号： G06F17/30094 , Y10S707/99953 , Y10S707/99955
摘要： A method of performing a file system consistency check in a distributed, segmented file system, includes: analyzing primary objects of a first segment of the file system to determine if a first primary object points to a second primary object of a second segment separate from the first segment, storing, if the first primary object points to the second primary object of the second segment, a first indication indicating that the first primary object points to the second primary object of the second segment, the first indication indicating an expected location of the second primary object; analyzing a shadow directory of the selected segment to determine an expected location of a third primary object, and an expected pointer of the third primary object indicative of a location and a name of a fourth primary object, the third primary object being contained in a segment other than the first segment; and storing a second indication indicating the expected location of the third primary object and the expected pointer of the third primary object.
摘要翻译：在分布式分段文件系统中执行文件系统一致性检查的方法包括：分析文件系统的第一段的主要对象，以确定第一主要对象是否指向与第一段，如果所述第一主要目标指向所述第二段的所述第二主要目标，则存储指示所述第一主要目标指向所述第二分段的所述第二主要对象的第一指示，所述第一指示指示所述第二分段的预期位置第二主要对象分析所选择的段的影子目录以确定第三主要对象的预期位置，以及指示第四主要对象的位置和名称的第三主要对象的预期指针，第三主要对象被包含在段中除第一段外; 以及存储指示所述第三主要对象的预期位置和所述第三主要对象的预期指针的第二指示。

8. 发明授权

US08131782B1 Shadow directory structure in a distributed segmented file system 有权
标题翻译：分布式分段文件系统中的影子目录结构
公开(公告)号：US08131782B1
公开(公告)日：2012-03-06
申请号：US12240873
申请日：2008-09-29
申请人： Sudhir Srinivasan , Boris Zuckerman
发明人： Sudhir Srinivasan , Boris Zuckerman
IPC分类号： G06F12/00
CPC分类号： G06F17/30094 , Y10S707/99953 , Y10S707/99955
摘要： Embodiments described herein describe a file server used in an association with devices to implement a distributed-file system. The file server includes processor that is operative to store a first shadow tree entry providing a pointer to a file system object, where the first shadow tree entry provides an alternative to a first remote ancestor directory to access the file system object in the distributed file system.
摘要翻译：本文描述的实施例描述了与用于实现分布式文件系统的设备相关联的文件服务器。所述文件服务器包括处理器，所述处理器用于存储提供指向文件系统对象的指针的第一影子树条目，其中所述第一影子树条目提供对所述分布式文件系统中的所述文件系统对象的第一远程祖先目录的替代。

9. 发明授权

US07430570B1 Shadow directory structure in a distributed segmented file system 有权
标题翻译：分布式分段文件系统中的影子目录结构
公开(公告)号：US07430570B1
公开(公告)日：2008-09-30
申请号：US10833924
申请日：2004-04-28
申请人： Sudhir Srinivasan , Boris Zuckerman
发明人： Sudhir Srinivasan , Boris Zuckerman
IPC分类号： G06F12/00
CPC分类号： G06F17/30094 , Y10S707/99953 , Y10S707/99955
摘要： Techniques are provided for producing a shadow directory structure for files or directories owned by servers whose parent directories are owned by different servers in a single distributed file system. For each file or directory whose parent directory resides on a remote server, the server owning the file or directory produces a shadow directory structure. The shadow structure may be used in a variety of ways, e.g., to access an orphan when the server owning the orphan's parent directory is offline (e.g., down, failed, or otherwise inaccessible), or to perform a partial file system consistency check (a partial fsck) to verify consistency of segments of the file system.
摘要翻译：提供了技术，用于为单个分布式文件系统中不同服务器拥有其父目录的服务器所拥有的文件或目录生成影子目录结构。对于父目录驻留在远程服务器上的每个文件或目录，拥有该文件或目录的服务器会生成一个影子目录结构。阴影结构可以以各种方式使用，例如，当拥有孤儿父目录的服务器脱机（例如，下载，失败或以其他方式不可访问）时，访问孤儿，或执行部分文件系统一致性检查（部分fsck）来验证文件系统段的一致性。

10. 发明授权

US08484259B1 Metadata subsystem for a distributed object store in a network storage system 有权
公开(公告)号：US08484259B1
公开(公告)日：2013-07-09
申请号：US12853191
申请日：2010-08-09
申请人： Gaurav Makkar , Sudhir Srinivasan , Ravi Kavuri
发明人： Gaurav Makkar , Sudhir Srinivasan , Ravi Kavuri
IPC分类号： G06F17/30
CPC分类号： G06F17/30979 , G06F17/30997
摘要： A network storage server system includes a distributed object store and a metadata subsystem. The metadata subsystem stores metadata relating to the stored data objects and allows data objects to be located and retrieved easily via user-specified search queries. It manages and allows searches on at least three categories of metadata via the same user interface and technique. These categories include user-specified metadata, inferred metadata and system-defined metadata. Search queries for the metadata can include multi-predicate queries.

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