-
公开(公告)号:US09292620B1
公开(公告)日:2016-03-22
申请号:US11855700
申请日:2007-09-14
申请人: Christopher Edward Hoover , Eric A. Anderson , Charles E. Christian, Jr. , Tim Reddin , Robert J. Souza , Xiaozhou Li
发明人: Christopher Edward Hoover , Eric A. Anderson , Charles E. Christian, Jr. , Tim Reddin , Robert J. Souza , Xiaozhou Li
IPC分类号: G06F17/30
CPC分类号: G06F17/30949 , G06F17/3048 , G06F17/30545 , G06F17/30864
摘要: Embodiments include methods, apparatus, and systems for retrieving data from multiple locations in storage systems. One embodiment includes a method that determines that data is stored in multiple locations remote to a computer, estimates a latency to retrieve the data from the multiple locations, and requests the data from the plural locations.
摘要翻译: 实施例包括用于从存储系统中的多个位置检索数据的方法,装置和系统。 一个实施例包括确定数据存储在远离计算机的多个位置的方法,估计从多个位置检索数据的等待时间,并从多个位置请求数据。
-
公开(公告)号:US08181180B1
公开(公告)日:2012-05-15
申请号:US11855682
申请日:2007-09-14
申请人: Eric A. Anderson , Christopher Edward Hoover , Charles E. Christian, Jr. , Tim Reddin , Robert J. Souza , Xiaozhou Li
发明人: Eric A. Anderson , Christopher Edward Hoover , Charles E. Christian, Jr. , Tim Reddin , Robert J. Souza , Xiaozhou Li
IPC分类号: G06F9/46
CPC分类号: G06F9/52
摘要: Embodiments include methods, apparatus, and systems for managing jobs in a shared file system. One embodiment includes a method that intercepts file accesses within a job on a client to a storage device in a shared file system, detects when a file associated with the job changes, and sends the client a message of the change.
摘要翻译: 实施例包括用于管理共享文件系统中的作业的方法,装置和系统。 一个实施例包括将客户端上的作业中的文件访问截取到共享文件系统中的存储设备的方法,检测与作业相关联的文件何时改变,并向客户端发送该更改的消息。
-
公开(公告)号:US09411682B2
公开(公告)日:2016-08-09
申请号:US12687361
申请日:2010-01-14
申请人: Eric A. Anderson , Xiaozhou Li , Mehul A. Shah , John J. Wylie
发明人: Eric A. Anderson , Xiaozhou Li , Mehul A. Shah , John J. Wylie
CPC分类号: G06F11/1076 , G06F2211/104 , G06F2211/1088
摘要: A method is provided for scrubbing information stored in a data storage system where the information is stored as a plurality of encoded fragments across multiple storage devices. The method includes maintaining on a first storage device a list of metadata entries corresponding to values that are stored in the data storage system at an At Maximum Redundancy (AMR) state, verifying that encoded fragments associated with each of the metadata entries are stored on a second storage, verifying that a corresponding metadata entry is stored on the first storage device for each encoded fragment that is stored on the second storage device, and scheduling for recovery any missing encoded fragments and/or any missing metadata entry.
摘要翻译: 提供了一种用于擦除存储在数据存储系统中的信息的方法,其中信息作为多个编码片段存储在多个存储设备中。 该方法包括在第一存储设备上以与At值最大冗余(AMR)状态存储在数据存储系统中的值相对应的元数据条目的列表,验证与每个元数据条目相关联的编码片段被存储在 第二存储器,验证对于存储在第二存储设备上的每个编码片段,相应的元数据条目存储在第一存储设备上,以及调度恢复任何丢失的编码片段和/或任何丢失的元数据条目。
-
公开(公告)号:US08108620B2
公开(公告)日:2012-01-31
申请号:US12400991
申请日:2009-03-10
IPC分类号: G06F13/00
CPC分类号: G06F12/0813
摘要: A method of caching data in a global cache distributed amongst a plurality of computing devices, comprising providing a global cache for caching data accessible to interconnected client devices, where each client contributes a portion of its main memory to the global cache. Each client also maintains an ordering of data that it has in its cache portion. When a remote reference for a cached datum is made, both the supplying client and the requesting client adjust their orderings to reflect the fact that the number of copies of the requested datum now likely exist in the global cache.
摘要翻译: 一种在分布在多个计算设备之间的全局高速缓存中缓存数据的方法,包括提供用于缓存互连的客户端设备可访问的数据的全局高速缓存,其中每个客户端将其主存储器的一部分贡献给全局高速缓存。 每个客户端还维护其在其高速缓存部分中具有的数据的排序。 当进行缓存数据的远程引用时,供应客户端和请求客户端都会调整其顺序,以反映所请求数据的副本数量现在可能存在于全局缓存中的事实。
-
公开(公告)号:US20100235581A1
公开(公告)日:2010-09-16
申请号:US12400991
申请日:2009-03-10
IPC分类号: G06F12/08
CPC分类号: G06F12/0813
摘要: A method of caching data in a global cache distributed amongst a plurality of computing devices, comprising providing a global cache for caching data accessible to interconnected client devices, where each client contributes a portion of its main memory to the global cache. Each client also maintains an ordering of data that it has in its cache portion. When a remote reference for a cached datum is made, both the supplying client and the requesting client adjust their orderings to reflect the fact that the number of copies of the requested datum now likely exist in the global cache.
摘要翻译: 一种在分布在多个计算设备之间的全局高速缓存中缓存数据的方法,包括提供用于缓存互连的客户端设备可访问的数据的全局高速缓存,其中每个客户端将其主存储器的一部分贡献给全局高速缓存。 每个客户端还维护其在其高速缓存部分中具有的数据的排序。 当进行缓存数据的远程引用时,供应客户端和请求客户端都会调整其顺序,以反映所请求数据的副本数量现在可能存在于全局缓存中的事实。
-
公开(公告)号:US08707098B2
公开(公告)日:2014-04-22
申请号:US13259221
申请日:2010-01-14
申请人: Eric A. Anderson , Xiaozhou Li , Mehul A. Shah , John J. Wylie
发明人: Eric A. Anderson , Xiaozhou Li , Mehul A. Shah , John J. Wylie
IPC分类号: G06F11/00
CPC分类号: G06F11/2094 , G06F11/106 , G06F2211/1088
摘要: A method of recovering a value in a data storage system includes maintaining a list of entries corresponding to values that have been inserted into the data storage system, determining whether the values are at an At Maximum Redundancy (AMR) state, and if not, the converging the values to the AMR state.
摘要翻译: 恢复数据存储系统中的值的方法包括维护与已经插入到数据存储系统中的值相对应的条目列表,确定值是否处于At最大冗余(AMR)状态,如果不是,则 将值收敛到AMR状态。
-
公开(公告)号:US20110173162A1
公开(公告)日:2011-07-14
申请号:US12687361
申请日:2010-01-14
申请人: Eric A. Anderson , Xiaozhou Li , Mehul A. Shah , John J. Wylie
发明人: Eric A. Anderson , Xiaozhou Li , Mehul A. Shah , John J. Wylie
CPC分类号: G06F11/1076 , G06F2211/104 , G06F2211/1088
摘要: A method is provided for scrubbing information stored in a data storage system where the information is stored as a plurality of encoded fragments across multiple storage devices. The method includes maintaining on a first storage device a list of metadata entries corresponding to values that are stored in the data storage system at an At Maximum Redundancy (AMR) state, verifying that encoded fragments associated with each of the metadata entries are stored on a second storage, verifying that a corresponding metadata entry is stored on the first storage device for each encoded fragment that is stored on the second storage device, and scheduling for recovery any missing encoded fragments and/or any missing metadata entry.
摘要翻译: 提供了一种用于擦除存储在数据存储系统中的信息的方法,其中信息作为多个编码片段存储在多个存储设备中。 该方法包括在第一存储设备上以与At值最大冗余(AMR)状态存储在数据存储系统中的值相对应的元数据条目的列表,验证与每个元数据条目相关联的编码片段被存储在 第二存储器,验证对于存储在第二存储设备上的每个编码片段,相应的元数据条目存储在第一存储设备上,以及调度恢复任何丢失的编码片段和/或任何丢失的元数据条目。
-
8.
公开(公告)号:US20100192018A1
公开(公告)日:2010-07-29
申请号:US12359190
申请日:2009-01-23
IPC分类号: G06F11/28
CPC分类号: G06F11/008 , G06F11/28
摘要: A method for measuring consistability of a distributed storage system is disclosed. The method includes determining at least one consistency level that the distributed storage system can provide. A plurality of failure classes can be determined for the distributed storage system. A probability of the distributed storage system to be in each of the plurality of failure classes can be measured. Each failure class can be mapped to the at least one consistency level. The probability of each failure class for each consistency level can be summed to determine an expected portion of time that the distributed storage system provides each consistency level.
摘要翻译: 公开了一种用于测量分布式存储系统的可组合性的方法。 该方法包括确定分布式存储系统可以提供的至少一个一致性级别。 可以为分布式存储系统确定多个故障等级。 可以测量分布式存储系统处于多个故障等级中的每一个中的概率。 每个故障类可以映射到至少一个一致性级别。 可以将每个一致性级别的每个故障类的概率相加以确定分布式存储系统提供每个一致性级别的预期部分时间。
-
公开(公告)号:US08458513B2
公开(公告)日:2013-06-04
申请号:US12847203
申请日:2010-07-30
申请人: John J. Wylie , Joseph A. Tucek , Eric A. Anderson , Xiaozhou Li , Mustafa Uysal
发明人: John J. Wylie , Joseph A. Tucek , Eric A. Anderson , Xiaozhou Li , Mustafa Uysal
IPC分类号: G06F11/00
CPC分类号: G06F11/2094 , G06F11/1076
摘要: A method is provided for efficiently recovering information in a distributed storage system where a list of values that should be stored on a storage device is maintained. A first convergence round is scheduled to be performed on the list of values to bring each value to an At Maximum Redundancy (AMR) state. A second convergence round is scheduled to be performed on the list by selecting a wait time interval from a predefined range of wait time intervals between starts of convergence rounds.
摘要翻译: 提供一种用于在分布式存储系统中有效地恢复信息的方法,其中应保存存储在存储设备上的值列表。 第一个收敛轮被安排在值列表上执行,以使每个值达到At Maximum Redundancy(AMR)状态。 通过从收敛轮开始之间的等待时间间隔的预定义范围中选择等待时间间隔,调度在列表上执行第二收敛轮。
-
公开(公告)号:US20120030511A1
公开(公告)日:2012-02-02
申请号:US12847203
申请日:2010-07-30
申请人: John J. Wylie , Joseph A. Tucek , Eric A. Anderson , Xiaozhou Li , Mustafa Uysal
发明人: John J. Wylie , Joseph A. Tucek , Eric A. Anderson , Xiaozhou Li , Mustafa Uysal
IPC分类号: G06F11/14
CPC分类号: G06F11/2094 , G06F11/1076
摘要: A method is provided for efficiently recovering information in a distributed storage system where a list of values that should be stored on a storage device is maintained. A first convergence round is scheduled to be performed on the list of values to bring each value to an At Maximum Redundancy (AMR) state. A second convergence round is scheduled to be performed on the list by selecting a wait time interval from a predefined range of wait time intervals between starts of convergence rounds.
摘要翻译: 提供一种用于在分布式存储系统中有效地恢复信息的方法,其中应保存存储在存储设备上的值列表。 第一个收敛轮被安排在值列表上执行,以使每个值达到At Maximum Redundancy(AMR)状态。 通过从收敛轮开始之间的等待时间间隔的预定义范围中选择等待时间间隔,调度在列表上执行第二收敛轮。
-
-
-
-
-
-
-
-
-