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1. 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.

2. 发明授权

US08099571B1 Logical block replication with deduplication 有权
标题翻译：具有重复数据删除的逻辑块复制
公开(公告)号：US08099571B1
公开(公告)日：2012-01-17
申请号：US12187305
申请日：2008-08-06
申请人： Alan S. Driscoll , Damarugendra Mallaiah , Gaurav Makkar , Balaji Rao
发明人： Alan S. Driscoll , Damarugendra Mallaiah , Gaurav Makkar , Balaji Rao
IPC分类号： G06F12/00
CPC分类号： G06F3/0613 , G06F3/0641 , G06F3/065 , G06F3/0689 , G06F11/2066 , G06F11/2074
摘要： Bandwidth consumption between a data replication source and destination and storage consumption at the destination are reduced, when logical block mirroring is used with source deduplication, by eliminating repeated transmission of data blocks from source to destination. A reference is created for each data block at the source, the reference being unique within a storage aggregate of the source. During a mirror update, the source initially sends only the references of modified data blocks to the destination. The destination compares those references against a data structure to determine whether the destination already has any of those data blocks stored. If the destination determines that it already has a data block stored, it does not request or receive that data block again from the source. Only if the destination determines that it has not yet received the referenced data block does it request and receive that data block from the source.
摘要翻译：当逻辑块镜像与源重复数据删除一起使用时，通过消除数据块从源到目的地的重复传输，减少了数据复制源和目的地之间的带宽消耗以及目的地的存储消耗。为源中的每个数据块创建引用，引用在源的存储集合中是唯一的。在镜像更新期间，源最初只将修改的数据块的引用发送到目的地。目的地将这些引用与数据结构进行比较，以确定目的地是否已经存储了这些数据块中的任何一个。如果目的地确定它已经存储了数据块，则它不再从源中请求或接收该数据块。只有当目的地确定尚未接收到引用的数据块时，它才从源头请求并接收该数据块。

3. 发明申请

US20140032595A1 CONTENTION-FREE MULTI-PATH DATA ACCESS IN DISTRIBUTED COMPUTE SYSTEMS 审中-公开
标题翻译：分布式计算机系统中的无连续多路数据访问
公开(公告)号：US20140032595A1
公开(公告)日：2014-01-30
申请号：US13558061
申请日：2012-07-25
申请人： Gaurav Makkar , Arthur Lent
发明人： Gaurav Makkar , Arthur Lent
IPC分类号： G06F17/30
摘要： The techniques introduced herein provide for systems and methods for creating and managing a contention-free multi-path access to a distributed data set in a distributed processing system. In one embodiment, a distributed processing system comprises a plurality of compute nodes. The compute nodes are assembled into compute groups and configured such that each compute group has an attached or local storage system. Various data segments of the distributed data set are stored in data storage objects on the local storage system. The data storage objects are cross-mapped into each of the compute nodes in the compute group so that any compute node in the group can access any of the data segments stored in the local storage system via the respective data storage object.
摘要翻译：本文介绍的技术提供了用于创建和管理对分布式处理系统中的分布式数据集的无竞争的多路径访问的系统和方法。在一个实施例中，分布式处理系统包括多个计算节点。计算节点被组合成计算组并被配置为使得每个计算组具有附接或本地存储系统。分布式数据集的各种数据段存储在本地存储系统上的数据存储对象中。数据存储对象被交叉映射到计算组中的每个计算节点中，使得组中的任何计算节点可以经由相应数据存储对象访问存储在本地存储系统中的任何数据段。

4. 发明授权

US08171064B2 Methods and systems for concurrently reading direct and indirect data blocks 有权
标题翻译：同时读取直接和间接数据块的方法和系统
公开(公告)号：US08171064B2
公开(公告)日：2012-05-01
申请号：US12552216
申请日：2009-09-01
申请人： Gaurav Makkar , Timothy C. Bisson
发明人： Gaurav Makkar , Timothy C. Bisson
IPC分类号： G06F17/30 , G06F15/16
CPC分类号： H04L67/1097
摘要： Methods and systems for concurrently reading direct and indirect data blocks of a data object stored in a network storage server system. In one embodiment, upon receiving a request to read a data object, the storage server identifies a location of an indirect data-block of the data object and a total number of direct data-blocks associated with the data object. Using this information, the storage server concurrently reads, using a single read operation, both the indirect data-block and a specific number of data blocks that are contiguous with the location of the indirect data-block. The specific number is commensurate with the total number of direct-data blocks associated with the data object. In one embodiment, the storage server verifies whether the data object is represented using a contiguous-mode layout scheme before performing the concurrent single-read operation to read the data object.
摘要翻译：同时读取存储在网络存储服务器系统中的数据对象的直接和间接数据块的方法和系统。在一个实施例中，在接收到读取数据对象的请求时，存储服务器识别数据对象的间接数据块的位置以及与数据对象相关联的直接数据块的总数。使用该信息，存储服务器使用单个读取操作同时读取与间接数据块的位置相邻的间接数据块和特定数量的数据块。具体数字与与数据对象相关联的直接数据块的总数相当。在一个实施例中，存储服务器在执行用于读取数据对象的并行单次读取操作之前验证是否使用连续模式布局方案来表示数据对象。

5. 发明申请

US20110055261A1 Methods and Systems for Concurrently Reading Direct and Indirect Data Blocks 有权
标题翻译：同时读取直接和间接数据块的方法和系统
公开(公告)号：US20110055261A1
公开(公告)日：2011-03-03
申请号：US12552216
申请日：2009-09-01
申请人： Gaurav Makkar , Timothy C. Bisson
发明人： Gaurav Makkar , Timothy C. Bisson
IPC分类号： G06F17/30 , G06F15/16
CPC分类号： H04L67/1097
摘要： Methods and systems for concurrently reading direct and indirect data blocks of a data object stored in a network storage server system. In one embodiment, upon receiving a request to read a data object, the storage server identifies a location of an indirect data-block of the data object and a total number of direct data-blocks associated with the data object. Using this information, the storage server concurrently reads, using a single read operation, both the indirect data-block and a specific number of data blocks that are contiguous with the location of the indirect data-block. The specific number is commensurate with the total number of direct-data blocks associated with the data object. In one embodiment, the storage server verifies whether the data object is represented using a contiguous-mode layout scheme before performing the concurrent single-read operation to read the data object.
摘要翻译：同时读取存储在网络存储服务器系统中的数据对象的直接和间接数据块的方法和系统。在一个实施例中，在接收到读取数据对象的请求时，存储服务器识别数据对象的间接数据块的位置以及与数据对象相关联的直接数据块的总数。使用该信息，存储服务器使用单个读取操作同时读取与间接数据块的位置相邻的间接数据块和特定数量的数据块。具体数字与与数据对象相关联的直接数据块的总数相当。在一个实施例中，存储服务器在执行用于读取数据对象的并行单次读取操作之前验证是否使用连续模式布局方案来表示数据对象。

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