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1. 发明申请

US20180203865A1 METHODS AND SYSTEMS FOR RESTORING A DATA CONTAINER ARCHIVED AT AN OBJECT-BASED STORAGE 审中-公开
公开(公告)号：US20180203865A1
公开(公告)日：2018-07-19
申请号：US15408736
申请日：2017-01-18
申请人： NETAPP, INC.
发明人： Kiran Nenmeli Srinivasan , Sumeeth Kyathanahalli , Sudhindra Tirupati Nagaraj
IPC分类号： G06F17/30 , G06F11/14 , H04L9/32 , H04L29/06
CPC分类号： G06F17/30073 , G06F11/1469 , G06F17/30097 , G06F17/30501 , H04L9/3247 , H04L63/0428
摘要： Methods and systems for an object based storage are provided. As an example, a method for generating a metadata object for an archive data container having a plurality of data containers is disclosed. The method includes generating a first metadata signature for the archive data container using an archive data container identifier, a number of data containers within the archive data container, and placement information of each data container within the archive data container; assigning a plurality of blocks for storing data for the plurality of data containers at an object based storage to an intermediate logical object; updating a payload signature with placement information of the plurality of blocks within the intermediate logical object; and placing the first metadata signature and the updated payload signature within the metadata object, wherein the metadata object is used to retrieve location information for a specific data container within the archive data container.

2. 发明授权

US09983945B2 Methods and systems for managing the replication of snapshots on a storage array 有权
公开(公告)号：US09983945B2
公开(公告)日：2018-05-29
申请号：US15388199
申请日：2016-12-22
申请人： HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
发明人： Varun Mehta , Rod Bagg , Vikas Gupta , Dan Leary , Ajay Singh , Hector Yuen
IPC分类号： G06F3/06 , G06F11/14 , G06F17/30
CPC分类号： G06F11/1451 , G06F3/0604 , G06F3/0619 , G06F3/065 , G06F3/0665 , G06F3/0673 , G06F3/0689 , G06F11/14 , G06F11/1461 , G06F17/30501 , G06F2201/84
摘要： A storage management application of a storage array is operable to create a new volume on the storage device array, and to automatically configure, responsive to user selection of an application protection profile, data protection services for application data to be stored on the volume, and/or, responsive to user selection of an application performance profile, application specific performance parameters. The application protection profile specifies scheduling and replication of snapshots for application data to be stored on the volume, and the application performance profile specifies performance parameters such as setting a block size, enabling or modifying a data caching algorithm, turning on or modifying data compression, etc. The scheduling, replication and/or application performance may be managed by a daemon associated with the storage management application which communicates with an agent associated with an application server on which the application executes.

3. 发明授权

US09922090B1 System and method for automatic vertical decomposition of a table for improving input/output and memory utilization in a database 有权
公开(公告)号：US09922090B1
公开(公告)日：2018-03-20
申请号：US13431890
申请日：2012-03-27
申请人： Marcin Zukowski , Hui Li
发明人： Marcin Zukowski , Hui Li
IPC分类号： G06F17/30
CPC分类号： G06F17/30501 , G06F17/30315 , G06F17/30339
摘要： A system and method for improving input/output and memory utilization in a database are described. The system may implement an automatic vertical table decomposition process to achieve the improved input/output, storage and memory utilization in a database.

4. 发明授权

US09916335B2 Row, table, and index decompression 有权
公开(公告)号：US09916335B2
公开(公告)日：2018-03-13
申请号：US15243789
申请日：2016-08-22
申请人： SYBASE, INC.
发明人： Xu-dong Qian , Leon Xiong
IPC分类号： G06F17/30
CPC分类号： G06F17/30312 , G06F17/30501
摘要： Methods, systems, and computer program products for decompressing data are described. An ordinal column number of columnar data to be accessed is obtained, the ordinal column number identifying a location of the columnar data in a corresponding uncompressed row, the columnar data being stored in a first data structure. A breakpoint value in a breakpoint field of the at least partially compressed row is determined, the breakpoint value indicating a location of an end of a common prefix in the corresponding uncompressed row, the common prefix being stored in a second data structure. The ordinal column number of the columnar data to be accessed and a column number indicated by the breakpoint value are compared, the comparison identifying one or more locations of the columnar data to be accessed.

5. 发明申请

US20170300515A1 EXPRESSION BASED SYNOPSIS OF DATABASE TABLES 审中-公开
公开(公告)号：US20170300515A1
公开(公告)日：2017-10-19
申请号：US15639202
申请日：2017-06-30
申请人： International Business Machines Corporation
发明人： Ian R. Finlay , Abhinav Goyal , Robin D. Grosman , Calisto P. Zuzarte
IPC分类号： G06F17/30
CPC分类号： G06F17/30315 , G06F17/30501
摘要： Although many techniques provide ways to answer queries very quickly by either avoiding joins and/or aggregation or avoiding expression computations in order to apply filtering predicates, these techniques have significant potential overhead for maintenance, and require a great deal of storage space. The present invention discloses the use of synopsis or zone tables to expressions to provide powerful filtering capabilities to base tables across joins, and aggregations on join results, thus allowing for highly effective region or stride filtering and ordering aggregate ranges to select the most likely candidate tuples for joining to produce top-N or bottom-N result sets for queries.

6. 发明授权

US09785674B2 Query-aware compression of join results 有权
公开(公告)号：US09785674B2
公开(公告)日：2017-10-10
申请号：US15368830
申请日：2016-12-05
申请人： International Business Machines Corporation
发明人： Christian A. Lang , Lipyeow Lim
IPC分类号： G06F17/30 , G06F3/06
CPC分类号： G06F17/30501 , G06F3/064 , G06F17/30135 , G06F17/30498 , G06F17/30569 , G06F17/30589
摘要： A method is provided for compressing results of a join query. A join order of a result set is determined from the join query, where the result set includes a plurality of tuples. A plurality of dictionary entries for the result set is received. A nested hierarchy of dictionaries is created based on the join order and the dictionary entries. A plurality of encoded tuples is received. The nested hierarchy of dictionaries is used by a processor to decode the plurality of encoded tuples so as to produce the plurality of tuples of the result set.

7. 发明授权

US09753984B2 Data access using decompression maps 有权
公开(公告)号：US09753984B2
公开(公告)日：2017-09-05
申请号：US14307838
申请日：2014-06-18
申请人： International Business Machines Corporation
发明人： Robert W. Lyle
IPC分类号： G06F17/30
CPC分类号： G06F17/30501 , G06F17/30153 , G06F17/30371 , G06F17/30424
摘要： Methods and apparatus, including computer program products, implementing and using techniques for decompressing data in a database system. A query is received, which pertains to a subset of data within a compressed set of data. One or more decompression strategies are evaluated using a cost model. The cost model includes an estimated filter factor. A low cost decompression strategy is selected based on the results of the evaluation of the one or more decompression strategies. One or more bytes representing the requested subset of data are located within the compressed set of data. Only a portion of the compressed data that corresponds to the subset of data is decompressed, using the selected decompression strategy, while leaving the remaining set of data in a compressed state.

8. 发明申请

US20170083582A1 QUERY-AWARE COMPRESSION OF JOIN RESULTS 有权
公开(公告)号：US20170083582A1
公开(公告)日：2017-03-23
申请号：US15368830
申请日：2016-12-05
申请人： International Business Machines Corporation
发明人： Christian A. Lang , Lipyeow LIM
IPC分类号： G06F17/30
CPC分类号： G06F17/30501 , G06F3/064 , G06F17/30135 , G06F17/30498 , G06F17/30569 , G06F17/30589
摘要： A method is provided for compressing results of a join query. A join order of a result set is determined from the join query, where the result set includes a plurality of tuples. A plurality of dictionary entries for the result set is received. A nested hierarchy of dictionaries is created based on the join order and the dictionary entries. A plurality of encoded tuples is received. The nested hierarchy of dictionaries is used by a processor to decode the plurality of encoded tuples so as to produce the plurality of tuples of the result set.

9. 发明授权

US09569494B2 Avoidance of intermediate data skew in a massive parallel processing environment 有权
标题翻译：避免大规模并行处理环境中的中间数据偏移
公开(公告)号：US09569494B2
公开(公告)日：2017-02-14
申请号：US14312879
申请日：2014-06-24
申请人： International Business Machines Corporation
发明人： Lukasz Gaza , Artur M. Gruszecki , Tomasz Kazalski , Grzegorz S. Milka , Konrad K. Skibski , Tomasz Stradomski
IPC分类号： G06F17/30
CPC分类号： G06F17/30466 , G06F17/3033 , G06F17/30469 , G06F17/30498 , G06F17/30501
摘要： A computer-implemented method for minimizing join operation processing time within a database system based on estimated joined table spread of the database system has been provided. The computer-implemented method includes estimating value distribution of data in a joined table, wherein the joined table is a result of join operation between two instances of tables of a database system. The computer-implemented method further includes determining boundaries for partitioning at least one range of attributes of the estimated value distribution, wherein the boundaries for partitioning at least one range of attributes of the estimated value distribution corresponds to a same number of rows of the joined table. The computer-implemented method further includes determining at least one assignment of the determined partition of the at least one range of attributes to processing units of the database system.
摘要翻译：已经提供了一种基于数据库系统的估计连接表扩展来最小化数据库系统内的连接操作处理时间的计算机实现的方法。计算机实现的方法包括估计联接表中的数据的值分布，其中所连接的表是数据库系统的两个表的实例之间的连接操作的结果。计算机实现的方法还包括确定用于划分估计值分布的属性的至少一个范围的边界，其中用于划分估计值分布的至少一个属性范围的边界对应于所连接的表的相同数量的行。计算机实现的方法还包括确定至少一个属性范围的所确定的分区的至少一个分配到数据库系统的处理单元。

10. 发明授权

US09569474B2 Data compression algorithm selection and tiering 有权
标题翻译：数据压缩算法选择和分层
公开(公告)号：US09569474B2
公开(公告)日：2017-02-14
申请号：US14220790
申请日：2014-03-20
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人： Michael R. Groseclose , Larry Juarez , David Montgomery , Jason L. Peipelman , Joshua M. Rhoades
IPC分类号： G06F17/30 , G06F3/06 , H03M7/30
CPC分类号： G06F17/30306 , G06F3/0608 , G06F3/0638 , G06F3/067 , G06F17/30501 , H03M7/30
摘要： A data storage subsystem having a plurality of data compression engines configured to compress data, each having a different compression algorithm. A data handling system is configured to determine a present rate of access to data; select at least one sample of data; determine the greatest degree of compression of said data compression engines; determine the compression ratios of the operated data compression engines with respect to the selected sample(s); compressing said selected at least one sample with a plurality of said data compression engines at said selected tier; operate a selected data compression engines with respect to the selected sample and determine the greatest degree of compression of the data compression engines; compress the data from which the sample was selected with one of the operated data compression engines determined to have the greatest degree of compression; and store the compressed data in data storage repositories.
摘要翻译：数据存储子系统具有多个数据压缩引擎，其被配置为压缩数据，每个具有不同的压缩算法。数据处理系统被配置为确定对数据的访问速率; 选择至少一个数据样本; 确定所述数据压缩引擎的最大压缩程度; 确定所操作的数据压缩引擎相对于所选择的样本的压缩比; 在所选择的层上用多个所述数据压缩引擎压缩所述选定的至少一个样本; 对所选择的样本操作选定的数据压缩引擎，并确定数据压缩引擎的最大压缩程度; 使用被确定为具有最大压缩程度的所操作的数据压缩引擎之一压缩选择样本的数据; 并将压缩数据存储在数据存储库中。

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