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51. 发明申请

US20140337685A1 DISPERSED STORAGE HAVING A PLURALITY OF SNAPSHOT PATHS AND METHODS FOR USE THEREWITH 有权
标题翻译：分散存储有多种SNAPSHOT PATHS及其使用方法
公开(公告)号：US20140337685A1
公开(公告)日：2014-11-13
申请号：US14444058
申请日：2014-07-28
申请人： CLEVERSAFE, INC.
发明人： Andrew Baptist , Ilya Volvovski , Wesley Leggette
IPC分类号： G06F11/14 , G06F11/10
CPC分类号： G06F11/1448 , G06F11/1008 , G06F11/1076 , G06F17/30194 , G06F17/30212 , G06F17/30215 , G06F2201/805 , G06F2201/84 , G06F2211/1028 , H04L67/1097
摘要： A directory file includes a plurality of entries, wherein an entry of the plurality of entries includes a file or directory name field, and a snapshot list field that includes a snapshot list in accordance with one of a plurality of snapshot paths of a snapshot tree. A new snapshot identifier (ID) is determined for a data file. The directory file is updated to produce an updated directory file, wherein the updating includes updating the snapshot list field associated with the data file to include the new snapshot ID in the snapshot list in accordance with the one of a plurality of snapshot paths of the snapshot tree.
摘要翻译：目录文件包括多个条目，其中多个条目的条目包括文件或目录名称字段，以及快照列表字段，其包括根据快照树的多个快照路径之一的快照列表。为数据文件确定新的快照标识符（ID）。目录文件被更新以产生更新的目录文件，其中更新包括根据快照的多个快照路径之一更新与数据文件相关联的快照列表字段以将新快照ID包括在快照列表中树。

52. 发明授权

US08812801B2 Method of data replication in a distributed data storage system and corresponding device 有权
标题翻译：分布式数据存储系统和相应设备中的数据复制方法
公开(公告)号：US08812801B2
公开(公告)日：2014-08-19
申请号：US13200021
申请日：2011-09-15
申请人： Alexandre Van Kempen , Erwan Le Merrer , Nicolas Le Scouarnec
发明人： Alexandre Van Kempen , Erwan Le Merrer , Nicolas Le Scouarnec
IPC分类号： G06F12/16 , G06F3/06 , H04L29/08
CPC分类号： G06F3/067 , G06F3/065 , G06F17/30215 , G06F17/30578 , H04L29/08 , H04L41/0668 , H04L43/0811
摘要： A replication set of k storage devices is defined, that stores a particular data item. Each device in the replication set has an associated timer for which a timeout value for disconnection is determined based on individual downtime data distribution of the device. A new device for storing the data item is added to the replication set when the timer expires for a device in the replication set, and if the number of devices in the replication set that are still connected is below a predetermined threshold. Timeout values are adapted according to a factor of criticalness determined for the replication set, resulting in a more reactive, or on the contrary, a less reactive replacement of devices in the replication set. The factor of criticalness is determined according to a difference between the connected devices in the replication set and the predetermined number k.
摘要翻译：定义k个存储设备的复制集，其存储特定的数据项。复制集中的每个设备都有一个关联的定时器，根据设备的个别停机时间数据分配，确定断开连接的超时值。如果复制集中的设备的定时器到期，并且仍在连接的复制集中的设备数量低于预定阈值，则将新数据项存储的新设备添加到复制集中。超时值根据为复制集确定的关键程度的因素进行调整，从而产生更多的反应性，或相反，复制集中设备的反应性较小。关键性因素根据复制集中连接的设备与预定数量k之间的差异来确定。

53. 发明授权

US08799414B2 Archiving data for a distributed filesystem 有权
标题翻译：存档分布式文件系统的数据
公开(公告)号：US08799414B2
公开(公告)日：2014-08-05
申请号：US13725751
申请日：2012-12-21
申请人： Panzura, Inc.
发明人： John Richard Taylor , Randy Yen-pang Chou , Andrew P. Davis
IPC分类号： G06F15/16
CPC分类号： G06F17/30215 , G06F17/30221
摘要： The disclosed embodiments provide a system that archives data for a distributed filesystem. Two or more cloud controllers collectively manage distributed filesystem data that is stored in one or more cloud storage systems; the cloud controllers cache and ensure data consistency for the stored data. During operation, a cloud controller determines that a cloud file in a previously stored data snapshot is no longer being actively referenced in the distributed filesystem. The cloud controller transfers this cloud file from the (first) cloud storage system to an archival cloud storage system, thereby reducing storage costs while preserving the data in the cloud file in case it is ever needed again.
摘要翻译：所公开的实施例提供了归档用于分布式文件系统的数据的系统。两个或多个云控制器共同管理存储在一个或多个云存储系统中的分布式文件系统数据; 云控制器缓存并确保存储数据的数据一致性。在操作期间，云控制器确定先前存储的数据快照中的云文件不再在分布式文件系统中被主动引用。云控制器将云文件从（第一个）云存储系统传输到存档云存储系统，从而降低存储成本，同时保留云文件中的数据，以防再次需要。

54. 发明申请

US20140172930A1 FAILURE RESILIENT DISTRIBUTED REPLICATED DATA STORAGE SYSTEM 有权
标题翻译：故障恢复分布式数据存储系统
公开(公告)号：US20140172930A1
公开(公告)日：2014-06-19
申请号：US13715519
申请日：2012-12-14
申请人： DataDirect Networks, Inc.
发明人： Donald J. Molaro , David Fellinger , Adam Fried-Gintis , Dan Olster
IPC分类号： G06F17/30
CPC分类号： G06F11/1076 , G06F17/30215 , H03M13/1515 , H03M13/373 , H04L67/1097
摘要： A failure resilient distributed replicated data storage system is described herein. The storage system includes zones that are independent, and autonomous from each other. The zones include nodes that are independent and autonomous. The nodes include storage devices. When a data item is stored, it is partitioned into a plurality of data objects and a plurality of parity objects calculated. Reassembly instructions are created for the data item. The data objects and parity objects are spread across all nodes and zones in the storage system. Reassembly instructions are also spread across the zones. When a read request is received, the data item is prepared from the lowest latency nodes according to the reassembly instructions. This provides for data resiliency while keeping the amount of storage space required relatively low.
摘要翻译：本文描述了故障弹性分布式复制数据存储系统。存储系统包括彼此独立的并且彼此自主的区域。这些区域包括独立和自主的节点。节点包括存储设备。当存储数据项时，将其划分为多个数据对象，并计算多个奇偶校验对象。为数据项创建重新组装说明。数据对象和奇偶校验对象分布在存储系统中的所有节点和区域之间。重新组装说明也分布在各个区域之间。当接收到读取请求时，根据重新组装指令从最低延迟节点准备数据项。这提供了数据弹性，同时保持所需的存储空间量相对较低。

55. 发明申请

US20140172792A1 FILE SERVER, INFORMATION SYSTEM, AND CONTROL METHOD THEREOF 有权
标题翻译：文件服务器，信息系统及其控制方法
公开(公告)号：US20140172792A1
公开(公告)日：2014-06-19
申请号：US13806935
申请日：2012-12-17
申请人： HITACHI, LTD.
发明人： Shigeyuki Kabano , Nobuyuki Saika , Takayuki Fukatani
IPC分类号： G06F17/30
CPC分类号： G06F17/30215 , G06F17/30171 , G06F17/30221 , G06F17/30578
摘要： A file server is coupled to a plurality of user terminals and a remote file server. The file server, stores, in a storage device, data of files received from the plurality of user terminals, replicates the files to the remote file server, stubs the files stored in the storage device, and, upon receiving an access request from the user terminal, reads out data of the file from the storage device and transmits the data to the user terminal if a file related to the access request is not stubbed, and, recall data of the file from the remote file server and transmits data of the file to the user terminal if a file related to the access request is stubbed. The file server replicates, to the remote file server, data of a user who performs a session disconnection request to the file server within a certain time in preference to another user.
摘要翻译：文件服务器耦合到多个用户终端和远程文件服务器。文件服务器在存储装置中存储从多个用户终端接收到的文件的数据，将文件复制到远程文件服务器，存储存储在存储装置中的文件，并且在接收到来自用户的访问请求时终端，从存储装置读出文件的数据，并且如果与访问请求相关的文件没有被保留，则将数据发送到用户终端，并且从远程文件服务器回收该文件的数据并发送该文件的数据如果与访问请求相关的文件被扼杀，则发送给用户终端。文件服务器在远程文件服务器中将优先于另一用户的特定时间内执行会话断开请求的用户的数据复制到文件服务器。

56. 发明申请

US20140149351A1 DISTRIBUTED DATA STORAGE 有权
标题翻译：分布式数据存储
公开(公告)号：US20140149351A1
公开(公告)日：2014-05-29
申请号：US14169699
申请日：2014-01-31
申请人： COMPUVERDE AB
发明人： Stefan Bernbo , Christian Melander , Roger Persson , Gustav Petersson
IPC分类号： G06F17/30
CPC分类号： G06F17/30575 , G06F11/1662 , G06F11/2094 , G06F17/30215 , H04L67/1095 , H04L67/1097 , H04L69/40
摘要： The present invention relates to a distributed data storage system comprising a plurality of storage nodes. Using unicast and multicast transmission, a server application may read and write data in the storage system. Each storage node may monitor reading and writing operations on the system as well as the status of other storage nodes. In this way, the storage nodes may detect a need for replication of files on the system, and may carry out a replication process that serves to maintain a storage of a sufficient number of copies of files with correct versions at geographically diverse locations.
摘要翻译：本发明涉及包括多个存储节点的分布式数据存储系统。使用单播和多播传输，服务器应用程序可以在存储系统中读取和写入数据。每个存储节点可以监视系统上的读取和写入操作以及其他存储节点的状态。以这种方式，存储节点可以检测对系统上的文件的复制的需要，并且可以执行复制过程，其用于在地理上不同的位置维持具有正确版本的足够数量的文件副本的存储。

57. 发明申请

US20140115282A1 WRITING DATA FROM HADOOP TO OFF GRID STORAGE 有权
标题翻译：将数据从HADOOP写入关闭存储
公开(公告)号：US20140115282A1
公开(公告)日：2014-04-24
申请号：US13656510
申请日：2012-10-19
申请人： YAHOO! INC.
发明人： Michael Natkovich , Ravi Sankuratri
IPC分类号： G06F12/16
CPC分类号： G06F12/16 , G06F11/2094 , G06F17/30215
摘要： In one embodiment, data generated via a map process and/or reduce process may be obtained. A request message may be sent to a server, where the request message indicates a request for a location in storage at which the data is to be stored. Upon receiving the location from the server, the data may be copied to the location in the storage. A commit message may be sent to the server, where the commit message indicates that the data has been copied to the location. In addition, the data may be deleted.
摘要翻译：在一个实施例中，可以获得经由地图处理和/或缩小处理生成的数据。请求消息可以被发送到服务器，其中请求消息指示要存储数据的存储中的位置的请求。在从服务器接收到位置后，可将数据复制到存储器中的位置。提交消息可以发送到服务器，其中提交消息指示数据已被复制到该位置。此外，数据可能会被删除。

58. 发明申请

US20140089346A1 METHODS AND APPARATUS FOR IMPLEMENTING SEMI-DISTRIBUTED LOCK MANAGEMENT 有权
标题翻译：实施半分布式管理的方法和装置
公开(公告)号：US20140089346A1
公开(公告)日：2014-03-27
申请号：US13627808
申请日：2012-09-26
申请人： ORACLE INTERNATIONAL CORPORATION
发明人： Fulu LI
IPC分类号： G06F17/30
CPC分类号： G06F21/6218 , G06F17/30215 , G06F17/30348 , G06F21/6227
摘要： Disclosed is an improved approach for performing lock management. A semi-distributed Lock Management (SDLM) system is provided utilizing RDMA and an acyclic time-dependent dependency graph that can lead to higher system performance while maintaining higher flexibility and autonomy for each process at each compute node in the given cluster, in particular for distributed database applications.
摘要翻译：公开了一种用于执行锁管理的改进方法。使用RDMA和非循环时间依赖关系图提供半分布式锁定管理（SDLM）系统，这可以导致更高的系统性能，同时为给定集群中的每个计算节点的每个进程保持更高的灵活性和自主性，特别是分布式数据库应用程序。

59. 发明申请

US20140032200A1 Systems and Methods of Simulating the State of a Distributed Storage System 有权
标题翻译：模拟分布式存储系统状态的系统和方法
公开(公告)号：US20140032200A1
公开(公告)日：2014-01-30
申请号：US14037298
申请日：2013-09-25
申请人： Google Inc.
发明人： Yonatan Zunger , Alexandre Drobychev , Alexander Kesselman , Rebekah C. Vickrey , Frank Clare Dachille , George Datuashvili
IPC分类号： G06G7/62
CPC分类号： G06F17/30215 , G06F11/2094 , G06F11/3457 , H04L67/1095 , H04L67/1097
摘要： A distributed storage system has a plurality of instances. A computer system simulates the state of the distributed storage system. The system obtains a current state of the distributed storage system and replication policies for objects in the distributed storage system. Each replication policy specifies criteria for placing copies of the relevant objects among the plurality of instances. The system receives proposed modifications to the state of the distributed storage system and simulates the state of the distributed storage system over time based on the current state of the distributed storage system, current statistical trends in the state of the distributed storage system, the replication policies for the objects in the distributed storage system, and the proposed modifications to the state of the distributed storage system. One or more reports are generated relating to time evolution of the state of the distributed storage system based on the simulation.
摘要翻译：分布式存储系统具有多个实例。计算机系统模拟分布式存储系统的状态。系统获取分布式存储系统的当前状态和分布式存储系统中对象的复制策略。每个复制策略指定在多个实例中放置相关对象的副本的标准。系统接收对分布式存储系统状态的建议修改，并根据分布式存储系统的当前状态，分布式存储系统状态下的当前统计趋势，复制策略，模拟分布式存储系统随时间的状态对于分布式存储系统中的对象，以及对分布式存储系统状态的建议修改。基于模拟，生成与分布式存储系统的状态的时间演化相关的一个或多个报告。

60. 发明申请

US20130325895A1 COMPUTER SYSTEM AND PROCESS FOR TRANSFERRING MULTIPLE HIGH BANDWIDTH STREAMS OF DATA BETWEEN MULTIPLE STORAGE UNITS AND MULTIPLE APPLICATIONS IN A SCALABLE AND RELIABLE MANNER 有权
公开(公告)号：US20130325895A1
公开(公告)日：2013-12-05
申请号：US13932225
申请日：2013-07-01
申请人： AVID TECHNOLOGY, INC.
发明人： Eric C. Peters , Stanley Rabinowitz , Herbert R. Jacobs , Peter J. Fasciano
IPC分类号： G06F17/30
CPC分类号： H04L67/1097 , G06F11/1076 , G06F11/1662 , G06F11/2094 , G06F11/2097 , G06F17/30194 , G06F17/30212 , G06F17/30215 , G06F17/30781 , G06F2211/1028 , H04L65/4084 , H04L67/1002 , H04L67/1029 , H04L67/16 , H04L67/42 , H04N7/17336 , H04N21/2182 , H04N21/23103 , H04N21/23116 , H04N21/2312 , H04N21/2315 , H04N21/232 , H04N21/2393 , H04N21/2396 , H04N21/2405 , H04N21/241 , H04N21/262 , H04N21/44004 , H04N21/442 , H04N21/47202 , H04N21/8456 , Y10S707/99953 , Y10S707/99956
摘要： Multiple applications request data from multiple storage units over a computer network. The data is divided into segments and each segment is distributed randomly on one of several storage units, independent of the storage units on which other segments of the media data are stored. At least one additional copy of each segment also is distributed randomly over the storage units, such that each segment is stored on at least two storage units. This random distribution of multiple copies of segments of data improves both scalability and reliability. When an application requests a selected segment of data, the request is processed by the storage unit with the shortest queue of requests. Random fluctuations in the load applied by multiple applications on multiple storage units are balanced nearly equally over all of the storage units. This combination of techniques results in a system which can transfer multiple, independent high-bandwidth streams of data in a scalable manner in both directions between multiple applications and multiple storage units.

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