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公开(公告)号：US10296219B2
公开(公告)日：2019-05-21
申请号：US14724392
申请日：2015-05-28
Applicant: VMware, Inc.
Inventor： Wenguang Wang , Radu Berinde , Christos Karamanolis , Jorge Guerra Delgado , Srinath Premachandran
IPC: G06F3/06 , G06F16/174 , G06F17/30
Abstract: A method and system are disclosed for storing client data objects in a deduplicated storage system. Deduplicated data may be stored in a plurality of physical data blocks. A content map layer can provide a mapping between the physical data blocks to logical map objects associated with the client data objects. The deduplicated data may be mapped to logical data blocks that comprise the client data objects.
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公开(公告)号：US20170262465A1
公开(公告)日：2017-09-14
申请号：US15068988
申请日：2016-03-14
Applicant: VMware, Inc.
Inventor： Edward J. Goggin , Sandeep Rangaswamy , Kiran Joshi , Srinath Premachandran , Gopala Suryanarayana , Radu Berinde , Wenguang Wang , Jorge Guerra Delgado , Jin Zhang , Radhika Vullikanti
CPC classification number: G06F16/1748 , H04L67/1004 , H04L67/1097
Abstract: In accordance with the present disclosure, files may be deduplicated in a distributed storage system having a plurality of storage volumes. A uniqueness metric for each file may indicate a degree of deduplication of the respective data files in the given storage volume. The uniqueness metric may be used to identify files for rebalancing in the distributed storage system. The uniqueness metric may be efficiently calculated with enough accuracy using a sampling methodology.
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公开(公告)号：US11182344B2
公开(公告)日：2021-11-23
申请号：US15068988
申请日：2016-03-14
Applicant: VMware, Inc.
Inventor： Edward J Goggin , Sandeep Rangaswamy , Kiran Joshi , Srinath Premachandran , Gopala Suryanarayana , Radu Berinde , Wenguang Wang , Jorge Guerra Delgado , Jin Zhang , Radhika Vullikanti
IPC: G06F16/00 , G06F16/174 , H04L29/08
Abstract: In accordance with the present disclosure, files may be deduplicated in a distributed storage system having a plurality of storage volumes. A uniqueness metric for each file may indicate a degree of deduplication of the respective data files in the given storage volume. The uniqueness metric may be used to identify files for rebalancing in the distributed storage system. The uniqueness metric may be efficiently calculated with enough accuracy using a sampling methodology.
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公开(公告)号：US10031672B2
公开(公告)日：2018-07-24
申请号：US14726572
申请日：2015-05-31
Applicant: VMware, Inc.
Inventor： Wenguang Wang , Radu Berinde , Christos Karamanolis , Jorge Guerra Delgado , Srinath Premachandran
Abstract: A deduplication storage system with snapshot and clone capability includes storing logical pointer objects and organizing a first set of the logical pointer objects into a hierarchical structure. A second set of the logical pointer objects may be associated with corresponding logical data blocks of a client data object. The second set of the logical pointer objects may point to physical data blocks having deduplicated data that comprise data of the corresponding logical data blocks. Some of the logical pointer objects in the first set may point to the logical pointer objects in the second set, so that the hierarchical structure represents the client data object. A root of the hierarchical structure may be associated with the client data object. A snapshot or clone may be created by making a copy of the root and associating the copied root with the snapshot or clone.
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公开(公告)号：US10891264B2
公开(公告)日：2021-01-12
申请号：US14700615
申请日：2015-04-30
Applicant: VMware, Inc.
Inventor： Wenguang Wang , Radu Berinde
IPC: G06F16/182 , H04L29/08
Abstract: Techniques for implementing a distributed, scalable key-value store (DSKVS) across a plurality of nodes are provided. In one embodiment, each node in the plurality of nodes can store: (1) a hash table in a nonvolatile storage of the node, where the hash table is configured to hold a partition of a total set of key-value data maintained by the DSKVS; (2) a logical log in the nonvolatile storage, where the logical log is configured to hold transaction log records corresponding to key-value update operations performed on the node; and (3) a cache in a volatile memory of the node, where the cache is configured to hold key-value data that has been recently updated on the node via one or more of the key-value update operations.
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Patent Agency Ranking
公开(公告)号：US10419498B2
公开(公告)日：2019-09-17
申请号：US14956284
申请日：2015-12-01
Applicant: VMware, Inc.
Inventor： Eric Knauft , Luke Lu , Wenguang Wang , Pascal Renauld , Radu Berinde , Ruocheng Li
Abstract: Examples perform input/output (I/O) requests, issued by a plurality of clients to an owner-node, in a virtual storage area network (vSAN) environment. I/O requests are guaranteed, as all I/O requests are performed during non-overlapping, exclusive sessions between one client at a time and the owner node. The owner node rejects requests for simultaneous sessions, and duplicate sessions are prevented by requiring that a client refresh its memory state after termination of a previous session.
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公开(公告)号：US09892004B2
公开(公告)日：2018-02-13
申请号：US14857845
申请日：2015-09-18
Applicant: VMWARE, INC.
Inventor： Radu Berinde , Wenguang Wang
CPC classification number: G06F11/1469 , G06F3/0619 , G06F3/0629 , G06F3/0673 , G06F11/1402 , G06F11/1415 , G06F11/1471 , G06F2201/81 , G06F2201/84
Abstract: Techniques for efficiently storing the state of an in-memory table to persistent storage are described. In one embodiment, one or more requests to update an entry in an in-memory table with one or more values are received, wherein the in-memory table is stored in non-persistent memory. The one or more entries in the in-memory table are then updated with the one or more values and one or more recent redo log entries that correspond to the one or more entries and one or more values are generated. One or more historical entries in the table are selected and one or more historical redo log entries that correspond to the one or more historical entries are generated. The recent redo log entry and the one or more historical redo log entries are saved to a bounded redo log, wherein the bounded redo log is stored in persistent storage.
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公开(公告)号：US20160350325A1
公开(公告)日：2016-12-01
申请号：US14724392
申请日：2015-05-28
Applicant: VMware, Inc.
Inventor： Wenguang Wang , Radu Berinde , Christos Karamanolis , Jorge Guerra Delgado , Srinath Premachandran
IPC: G06F17/30
CPC classification number: G06F3/0608 , G06F3/0619 , G06F3/0641 , G06F3/065 , G06F3/067 , G06F17/30156
Abstract: A method and system are disclosed for storing client data objects in a deduplicated storage system. Deduplicated data may be stored in a plurality of physical data blocks. A content map layer can provide a mapping between the physical data blocks to logical map objects associated with the client data objects. The deduplicated data may be mapped to logical data blocks that comprise the client data objects.
Abstract translation: 公开了一种用于将客户端数据对象存储在重复数据删除的存储系统中的方法和系统。 重复数据可以存储在多个物理数据块中。 内容映射图层可以提供物理数据块与与客户端数据对象相关联的逻辑映射对象之间的映射。 重复数据删除的数据可以映射到构成客户数据对象的逻辑数据块。
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公开(公告)号：US10078549B2
公开(公告)日：2018-09-18
申请号：US14716740
申请日：2015-05-19
Applicant: VMware, Inc.
Inventor： Christos Karamanolis , Radu Berinde , Wenguang Wang
CPC classification number: G06F11/1076 , G06F3/0619 , G06F3/064 , G06F3/0689 , G06F11/14 , G06F11/16 , G06F2211/1028 , G06F2211/104
Abstract: Exemplary methods, apparatuses, and systems maintain hole boundary information by calculating a block attribute parity value. For example, a request is received to write to a first block of a stripe of data. A block attribute of a second block is determined. The block attribute of the second block indicates whether the second block includes written data or is a hole. A block attribute parity value is calculated based upon both the block attribute of the first block and the block attribute of the second block. The block attribute of the first block indicates the first block includes written data based upon the received request. The block attribute parity value and the data parity value are stored on one of the physical storage devices in response to the received write request. As a result, if a disk is lost, holes can be recovered using the block attribute parity value.
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10.发明申请公开(公告)号：US20160350006A1
公开(公告)日：2016-12-01
申请号：US14726572
申请日：2015-05-31
Applicant: VMware, Inc.
Inventor： Wenguang Wang , Radu Berinde , Christos Karamanolis , Jorge Guerra Delgado , Srinath Premachandran
IPC: G06F3/06
CPC classification number: G06F3/0608 , G06F3/0619 , G06F3/0641 , G06F3/065 , G06F3/067 , G06F17/30156
Abstract: A deduplication storage system with snapshot and clone capability includes storing logical pointer objects and organizing a first set of the logical pointer objects into a hierarchical structure. A second set of the logical pointer objects may be associated with corresponding logical data blocks of a client data object. The second set of the logical pointer objects may point to physical data blocks having deduplicated data that comprise data of the corresponding logical data blocks. Some of the logical pointer objects in the first set may point to the logical pointer objects in the second set, so that the hierarchical structure represents the client data object. A root of the hierarchical structure may be associated with the client data object. A snapshot or clone may be created by making a copy of the root and associating the copied root with the snapshot or clone.
Abstract translation: 具有快照和克隆功能的重复数据删除存储系统包括存储逻辑指针对象并将第一组逻辑指针对象组织成层次结构。 第二组逻辑指针对象可以与客户机数据对象的相应逻辑数据块相关联。 第二组逻辑指针对象可以指向具有包括相应逻辑数据块的数据的重复数据删除数据的物理数据块。 第一组中的一些逻辑指针对象可以指向第二组中的逻辑指针对象，使得层次结构表示客户端数据对象。 层次结构的根可以与客户端数据对象相关联。 可以通过创建根的副本并将复制的根与快照或克隆相关联来创建快照或克隆。
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