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公开(公告)号：US10102057B2
公开(公告)日：2018-10-16
申请号：US14716756
申请日：2015-05-19
Applicant: VMware, Inc.
Inventor： Christos Karamanolis , Wenguang Wang , Kiran Joshi , Sandeep Rangaswamy
Abstract: Exemplary methods, apparatuses, and systems include a first layer of a virtual storage area network (VSAN) module receiving a write request from a data compute node. The write request includes data to be written and the VSAN module is distributed across a plurality of computers to provide an aggregate object store using storage attached to each of the plurality of computers. The first layer of the VSAN module calculates a checksum for the data to be written and passes the data to be written and the checksum to a second layer of the VSAN module. The second layer of the VSAN module calculates a first verification checksum for the data to be written. The data and the checksum are written to persistent storage in response to determining the first verification checksum matches the checksum passed by the first layer of the VSAN module.
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公开(公告)号：US20170264684A1
公开(公告)日：2017-09-14
申请号：US15191228
申请日：2016-06-23
Applicant: VMware, Inc.
Inventor： Richard Spillane , Yunshan Luke Lu , Wenguang Wang , Maxime Austruy , Christos Karamanolis , Rawlinson Rivera
CPC classification number: H04L67/1095 , G06F9/45558 , G06F16/128 , G06F16/178 , G06F2009/45562 , G06F2009/4557 , G06F2009/45595
Abstract: Examples disclosed herein relate to propagating changes made on a file system volume of a primary cluster of nodes to the same file system volume also being managed by a secondary cluster of nodes. An application is executed on both clusters, and data changes on the primary cluster are mirrored to the secondary cluster using an exo-clone file. The exo-clone file includes the differences between two or more snapshots of the volume on the primary cluster, along with identifiers of the change blocks and (optionally) state information thereof. Just these changes, identifiers, and state information are packaged in the exo-clone file and then exported to the secondary cluster, which in turn makes the changes to its version of the volume. Exporting just the changes to the data blocks and the corresponding block identifiers drastically reduces the information needed to be exchanged and processed to keep the two volumes consistent.
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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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34.发明申请公开(公告)号：US20170177574A1
公开(公告)日：2017-06-22
申请号：US14973415
申请日：2015-12-17
Applicant: VMware, Inc.
Inventor： Richard P. Spillane , Yunshan Lu , Wenguang Wang
CPC classification number: G06F17/2235 , G06F16/11 , G06F16/1865
Abstract: System and method for supporting a user-level file system transaction use cloned files of original existing files specified in the user-level file system transaction to perform file system operations on at least one of the original existing files using the cloned files, which include metadata of the original existing files. After at least one of the cloned files have been modified, a batch rename operation is executed to atomically commit every modified cloned file of the user-level file system transaction.
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公开(公告)号：US20170061146A1
公开(公告)日：2017-03-02
申请号：US14839815
申请日：2015-08-28
Applicant: VMware, Inc.
Inventor： Yunshan Lu , Wenguang Wang
CPC classification number: G06F21/6218 , G06F21/604 , G06F21/6272
Abstract: System and method for accessing a distributed storage system uses a storage-level access control process at a distributed file system that interfaces with the distributed storage system to determine whether a particular client has access to a particular first file system object using an identifier of the particular client and storage-level access control rules in response to a file system request from the particular client to access a second file system object in the particular first file system. The storage-level access control rules are defined for a plurality of clients and a plurality of first file system objects of the distributed storage system to allow the particular client access to the second file system object in the particular first file system only if the particular client has been determined to have access to the particular first file system object according to the storage-level access control rules.
Abstract translation: 用于访问分布式存储系统的系统和方法使用与分布式存储系统接口的分布式文件系统的存储级别访问控制过程，以确定特定客户端是否可以使用特定的标识符的标识符访问特定的第一文件系统对象 响应于来自特定客户端的文件系统请求访问特定第一文件系统中的第二文件系统对象的客户端和存储级访问控制规则。 存储级访问控制规则是针对分布式存储系统的多个客户端和多个第一文件系统对象定义的，以允许特定客户端访问特定第一文件系统中的第二文件系统对象，只有当特定客户端 已经被确定为根据存储级访问控制规则访问特定的第一文件系统对象。
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Patent Agency Ranking
公开(公告)号：US20160328299A1
公开(公告)日：2016-11-10
申请号：US14706879
申请日：2015-05-07
Applicant: VMware, Inc.
Inventor： Wenguang Wang , Yunshan Lu
CPC classification number: G06F3/0649 , G06F3/0611 , G06F3/0643 , G06F3/0665 , G06F3/067 , G06F3/0689
Abstract: A virtual file system and method for performing virtual file system operations uses a vnode descriptor to access a vnode for a vnode operation. If the vnode is not found in a vnode cache using the vnode descriptor, the vnode is reconstructed using information regarding the vnode found outside of the vnode cache using the vnode descriptor.
Abstract translation: 用于执行虚拟文件系统操作的虚拟文件系统和方法使用vnode描述符来访问vnode操作的vnode。 如果使用vnode描述符在vnode缓存中未找到vnode，则使用vnode描述符使用关于vnode缓存外部的vnode的信息来重构vnode。
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公开(公告)号：US12130791B2
公开(公告)日：2024-10-29
申请号：US18144797
申请日：2023-05-08
Applicant: VMware, Inc.
Inventor： Hardik Singh Negi , Wenguang Wang , Eric Knauft
IPC: G06F16/22 , G06F16/23 , G06F16/2455 , G06F16/28 , G06F16/901
CPC classification number: G06F16/2246 , G06F16/2343 , G06F16/24552 , G06F16/288
Abstract: A method for modifying key-value pairs of a B+ tree is provided. The method receives a request to modify a particular key-value pair. Each node of the tree has a modification number. The method traverses a path on the tree from the root node toward the particular node. The traversing includes upon reaching a parent node of the path, acquiring a shared lock on both the parent node and a child node one level below the parent node. Upon determining that the child node is the particular node, the method stores the modification number of the particular node, releases the shared lock on the particular node, compares a current modification number of the node with its stored number, and acquires an exclusive lock on the node if the numbers are the same. The method increments the current modification number of the node and modifies it while in the exclusive lock.
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公开(公告)号：US12021981B2
公开(公告)日：2024-06-25
申请号：US17684432
申请日：2022-03-02
Applicant: VMware, Inc.
Inventor： Wenguang Wang , Abhay Kuamr Jain , Ruiling Dou , Tao Xie , Xin Li , Chandrakanth Gadhiraju , Kevin Rayfeng Li , Satish Pudi
CPC classification number: H04L9/0891 , G06F21/602
Abstract: An example method for a first host, being an owner of an object stored in a virtual storage area network (vSAN) cluster, to perform encryption and decryption operations during a rekey in the vSAN cluster is disclosed. The method includes obtaining a first encryption key and a first key identifier (ID) of the first encryption key; transmitting the first key ID and an active key index to a second host; using the first encryption key to perform encryption and decryption operations; and in response to a determination of receiving a key change notification from a master node of the vSAN cluster, terminating a connection with the second host.
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公开(公告)号：US11860736B2
公开(公告)日：2024-01-02
申请号：US17644618
申请日：2021-12-16
Applicant: VMware, Inc.
Inventor： Enning Xiang , Pranay Singh , Junlong Gao , Hardik Singh Negi , Wenguang Wang
CPC classification number: G06F11/1407 , G06F11/1474 , G06F16/128 , G06F16/2246
Abstract: A method for resumeable snapshot deletion is provided. A method for deletion of nodes maintained in an ordered data structure for a first snapshot includes processing the nodes maintained in the ordered data structure according to a defined order, setting a node path cursor with a pointer to a node and an indication of the deletion of the node; storing the node path cursor in a persistent storage; and during processing of the nodes: detecting a failure; after the failure, checking the pointer of the node path cursor; and resuming processing of the nodes starting from the first node indicated by the pointer.
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公开(公告)号：US20230421462A1
公开(公告)日：2023-12-28
申请号：US17954431
申请日：2022-09-28
Applicant: VMware, Inc.
Inventor： Tao Xie , Ruiling Dou , Wenguang Wang , Zongliang Li , Zhao Jin
IPC: H04L41/40 , H04L41/342 , H04L9/08
CPC classification number: H04L41/40 , H04L41/342 , H04L9/0822
Abstract: The present disclosure relates to bootstrapping an encrypted single node VSAN cluster. One method includes receiving a request to create an encrypted VSAN cluster from a single host in a software-defined datacenter, deploying a virtual server on a VSAN datastore of the software-defined datacenter, registering a native key provider (NKP) in the virtual server, creating an empty VSAN cluster encrypted by the NKP, adding the single host to the encrypted empty cluster to create a one-host encrypted cluster, registering a KMIP KMS in the virtual server, switching encryption of the one-host encrypted cluster from the NKP to the KMIP KMS, and adding another host to the one-host encrypted cluster to create the encrypted cluster.
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