Protection Against Loss Of Memory Contents (epo) Patents (Class 711/E12.103)
  • Patent number: 12093152
    Abstract: A data transfer request can be received by each of multiple deployments; however, only a primary deployment can process the request. The data transferred by the primary deployment may be replicated in the secondary deployments. In response to a failover event, one of the secondary deployments can be designated as the new primary development and continue the data transfer based on the data transfer request and the replication information received from the old primary deployment prior to the failover.
    Type: Grant
    Filed: January 24, 2023
    Date of Patent: September 17, 2024
    Assignee: Snowflake Inc.
    Inventors: Abdullah Al Mahmood, Ruta Dhaneshwar, Xin Huang, Ganeshan Ramachandran Iyer, Jiaxing Liang, Nithin Mahesh, Raghav Ramachandran, Purav B. Saraiya, Yanyi Zhang
  • Patent number: 12093552
    Abstract: An apparatus comprises a processing device configured to generate a predicted data access frequency trend pattern of a storage object for a designated period of time, the storage object being stored in a first storage tier in a clustered storage system. The processing device is also configured to classify the storage object based on the predicted data access frequency trend pattern, and to determine a given storage tier in the clustered storage system to utilize for storage of the storage object during the designated period of time based on the predicted data access frequency trend pattern. The processing device is also configured, responsive to the given storage tier being different than the first storage tier, to select a type of data movement based on the classification of the storage object and to utilize the selected type of data movement to move the storage object to the given storage tier.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: September 17, 2024
    Assignee: Dell Products L.P.
    Inventors: Chi Chen, Hailan Dong
  • Patent number: 12066985
    Abstract: A method is provided, comprising: receiving, at a source system, a first copy instruction, the first copy instruction being associated with a token that represents one or more data items, the first copy instruction instructing the source system to copy the one or more data items from a first volume to a second volume; in response to the first copy instruction, retrieving one or more hash digests from a snapshot that is associated with the token, each of the one or more hash digests being associated with a different one of the one or more data items; and transmitting, to a target system, a second copy instruction that is associated with the one or more hash digests, the second copy instruction instructing the target system to copy the one or more data items to a replica of the second volume that is stored at the target system.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: August 20, 2024
    Assignee: EMC IP Holding Company LLC
    Inventors: Xiangping Chen, David Meiri
  • Patent number: 12061575
    Abstract: Embodiments for providing adaptive namespace verification with high efficiency. The verification process is used in modern filesystems to check the integrity of key data structures, such for backup systems where providing thorough and efficient mechanisms for verification is critical. Embodiments accelerate the verification process by selectively applying continuous, differential, and integral verification techniques for startup and runtime repair purposes to overcome present problems for system capacities that exceed the petabyte range and impose significant time requirements using existing verification methods. Embodiments work with both single-node and distributed filesystems.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: August 13, 2024
    Assignee: Dell Products L.P.
    Inventors: Charles J. Hickey, Shashikanth Lakshmikantha, Murthy V. Mamidi
  • Patent number: 12047472
    Abstract: An improved information management system that implements a staging area or cache to temporarily store primary data in a native format before the primary data is converted into secondary copies in a secondary format is described herein. For example, the improved information management system can include various media agents that each include one or more high speed drives. When a client computing device provides primary data for conversion into secondary copies, the primary data can initially be stored in the native format in the high speed drive(s). If the client computing device then submits a request for the primary data, the media agent can simply retrieve the primary data from the high speed drive(s) and transmit the primary data to the client computing device. Because the primary data is already in the native format, no conversion operations are performed by the media agent, thereby reducing the restore delay.
    Type: Grant
    Filed: April 11, 2023
    Date of Patent: July 23, 2024
    Assignee: Commvault Systems, Inc.
    Inventors: Ramachandra Reddy Ankireddypalle, Manoj Kumar Vijayan, Pratima Bapusaheb Kudale, Anuradha Talur, Manivannan Subramaniam
  • Patent number: 12039182
    Abstract: Techniques for creating identical snapshots can include: performing synchronous replication between a first storage object of a first system and a second storage object of a second system; enabling change tracking for the first storage object that records in a log which portions of the first storage object are written or modified; responsive to enabling change tracking, creating a snapshot S2 of the second storage object of the second system; responsive to creating the snapshot S2 of the second storage object; creating a snapshot S1 of the first storage object of the first system; responsive to creating the snapshot S1 of the first storage object, disabling change tracking for the first storage object; and copying written or modified content of the first storage object as identified in the log to the snapshot S2 of the second storage object of the second system.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: July 16, 2024
    Assignee: Dell Products L.P.
    Inventors: Nagasimha G. Haravu, Alan L. Taylor, Girish Sheelvant, Nagapraveen Veeravenkata Seela
  • Patent number: 12032445
    Abstract: Described is a system (and method) for specialized data management when performing incremental backups to a cloud-based object storage. When backing up client data, the server may utilize incremental backups to conserve the amount of storage space required on the object storage. However, the server may implement a configuration that enables full reconstruction of the client data at the time of recovery. To provide such capabilities, the server may leverage a specialized metadata database. The metadata database may be an embedded database maintained by the server. The server may leverage the metadata database to provide further storage efficiencies by storing certain incremental backup data exclusively within the metadata database. Accordingly, the server may implement a data management configuration as part of a backup service that conserves storage usage, and as a result, storage costs when using on a third-party cloud-based object storage.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: July 9, 2024
    Assignee: EMC IP Holding Company LLC
    Inventors: Sunil Yadav, Shelesh Chopra, Ravi Vijayakumar Chitloor, Tushar Dethe, Amarendra Behera, Deependra Singh, Jigar Bhanushali, Himanshu Arora, Prabhat Kumar Dubey
  • Patent number: 12032845
    Abstract: A compute system includes an execution unit (e.g. of a CPU) with a memory controller providing access to a hybrid physical memory. The physical memory is “hybrid” in that it combines a cache of relatively fast, durable, and expensive memory (e.g. DRAM) with a larger amount of relatively slow, wear-sensitive, and inexpensive memory (e.g. flash). A hybrid controller component services memory commands from the memory controller component and additionally manages cache fetch and evict operations that keep the cache populated with instructions and data that have a high degree of locality of reference. The memory controller alerts the hybrid controller of available access slots to the cache so that the hybrid controller can use the available access slots for cache fetch and evict operations with minimal interference to the memory controller.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: July 9, 2024
    Assignee: Rambus Inc.
    Inventors: Frederick A. Ware, John Eric Linstadt
  • Patent number: 12026177
    Abstract: In some examples, a computing device may store a first snapshot of a state of data in a first partition at a first point in time. The computing device may create a second partition and a third partition to each receive a portion of the data, the second partition and the third partition each including a metrics schema, and may determine information for the metrics schemas based on information in the first snapshot. During the determining of the information for the metrics schemas, the computing device may receive a write to the first partition. The computing device may update the first partition based on the write and may add a split update command to a data structure based on the write. In addition, the computing device may update at least one of the metrics schemas in the second partition or the third partition based on the split update command.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: July 2, 2024
    Assignee: HITACHI VANTARA LLC
    Inventors: Kevin Canuette Grimaldi, Joshua Jen Monzon
  • Patent number: 11977452
    Abstract: A method for a storage system to process input and output operations. The method includes receiving writes over time to an address at a base virtual volume, storing each of the writes in a physical storage at a new location that is without existing data, tagging each stored write with a different generation number to distinguish between different versions of data written to the address at the base virtual volume, receiving a read of the address at the base virtual volume, and, in response to the read of the address at the base virtual volume, returning one of the stored writes that is tagged with a newer generation number than a remainder of the stored writes.
    Type: Grant
    Filed: January 26, 2023
    Date of Patent: May 7, 2024
    Assignee: Nvidia Corporation
    Inventors: Jin Wang, Siamak Nazari
  • Patent number: 11977783
    Abstract: A method for performing data access control of a memory device with aid of a predetermined command and associated apparatus are provided. The method may include: utilizing the memory controller to receive a first single command from a host device through a transmission interface circuit of the memory controller; and in response to the first single command conforming to a predetermined format of the predetermined command, utilizing the memory controller to perform a series of operations according to the first single command, wherein the first single command represents a first duplicate command, for duplicating from a first source logical address to a first destination logical address. The series of operations may include: reading first data at the first source logical address; and writing the first data at the first destination logical address.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: May 7, 2024
    Assignee: Silicon Motion, Inc.
    Inventor: Tzu-Yi Yang
  • Patent number: 11966296
    Abstract: A master-slave architecture deployment method based on snapshot includes: restoring a core library corresponding to a MySQL database at any point in snapshot time, where the core library is a virtual library of the MySQL database; querying out at least one piece of configuration information necessary for master-slave configuration of the MySQL database by using the core library as baseline; taking a snapshot on the core library by using a snapshot technology; creating and cloning at least one copy library corresponding to the core library respectively based on the snapshot and the at least one piece of configuration information necessary for master-slave configuration; and configuring a master-slave relationship and a master library and a slave library corresponding to the master-slave relationship for the core library and the at least one copy library. A master-slave architecture deployment device based on snapshot is further provided.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: April 23, 2024
    Assignee: SHANGHAI SUNINFO INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Zhilong Guang, Fei Chen, Qing Du
  • Patent number: 11954354
    Abstract: A method for performing a backup operation includes obtaining, by a backup server, a backup request, wherein the backup request specifies a virtual machine to be backed up, wherein the virtual machine is hosted by a production host, and in response to the backup request: obtaining classification data from the backup agent, initiating a backup classification on an unprocessed backup associated with the virtual machine based on the classification data to obtain a sensitivity tag, and initiating a data processing on the unprocessed backup based on the sensitivity tag.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: April 9, 2024
    Assignee: EMC IP Holding Company LLC
    Inventors: Mahesh Reddy Appireddygari Venkataramana, Gururaj Kulkarni, Swaroop Shankar D H
  • Patent number: 11953993
    Abstract: Systems and methods for creating a live copy of a data object from a production system for use by third party applications. The systems and methods include receiving at least one request for a copy of production data from an application; creating a live backup copy; creating a flash copy of the live backup copy, and a flash copy bitmap; creating a modified version of the live backup copy by changing a subset of data in the live backup copy; recording the changed subset of data using the flash copy bitmap; mounting, the modified version of the live backup copy to the application; and transforming the modified version of the live backup copy back to the live backup copy when unmounting the modified version of the live backup copy of the production data from the application by applying changes associated with the flash copy bitmap to the live backup copy.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: April 9, 2024
    Assignee: Google LLC
    Inventors: Yeganjaiah Gottemukkula, Madhav Mutalik, Siddhartha Karnik, Tracy Melbourne Taylor
  • Patent number: 11940887
    Abstract: Systems, apparatus and methods are provided for performing cache program operations in a non-volatile storage system. A method may comprise issuing a first cache program operation from a storage controller to a non-volatile storage device to write data to a first regular block, writing the data to the first regular block and a copy of the data to a backup block, determining that a program error has occurred while writing the data to the first regular block, asserting the program error to the storage controller, retrieving a mapping between the first regular block and the backup block, issuing a read operation to read the copy of the data from the backup block, reading the copy of the data from the backup block and issuing a second cache program operation to write the data to a second regular block and marking the first regular block as defective.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: March 26, 2024
    Assignee: Innogrit Technologies Co., Ltd.
    Inventors: Gang Zhao, Lin Chen, Jie Chen, Qun Zhao
  • Patent number: 11934278
    Abstract: A data storage library is described that protects against a malware attack by providing a scheduled write window of time where archive data can be written to tape cartridges in the tape library on behalf of a client. At times outside of the write window, the tape library is disabled from writing any archive data to any of the tape cartridges in the tape library. Accordingly, the tape library is protected from a malicious entity attempting to download malware to tape cartridges in the tape library outside of the designated write windows. The tape library is configured to provide or otherwise read archived data from a tape cartridge both in the write window and outside of the write window.
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: March 19, 2024
    Assignee: Spectra Logic Corporation
    Inventors: Nathan Christopher Thompson, Matthew Thomas Starr, Matthew Ninesling, Walter Wong
  • Patent number: 11907083
    Abstract: A command is received by a data protection agent to conduct a file system-consistent backup of a virtual machine (VM) having a copy service. A first request is issued to the copy service indicating that all files of the VM are to be backed up and that archive attributes of all the files should remain unchanged. A second request is issued to a snapshot data mover for a snapshot of the VM. The snapshot request is passed to a virtual machine manager. Upon the snapshot data mover receiving an identifier identifying the snapshot from the virtual machine manager, the snapshot identifier is passed to the data protection agent, thereby allowing the agent to locate the snapshot and conduct the backup.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: February 20, 2024
    Assignee: Dell Products L.P.
    Inventors: Krishnendu Bagchi, Vipin Kaushal, Sudha Hebsur, Amarendra Behera, Pallavi Prakash
  • Patent number: 11894999
    Abstract: Client status pairs are obtained for clients. Each of the client status pairs includes a first client status assigned by a first network entity and a second client status assigned by a second network entity. Mismatched client status pairs are identified from the client status pairs. Each mismatched client status pair includes a discrepancy between the first and second client status. A data structure is generated that stores the mismatched client status pairs in a portion of the data structure. The portion is associated with a unique type of mismatched client status pair. A script configured for the unique type is executed. For each mismatched client status pair stored in the portion, the script modifies a data store associated with the first network entity to replace the first client status with the second client status.
    Type: Grant
    Filed: May 10, 2023
    Date of Patent: February 6, 2024
    Assignee: Charter Communications Operating, LLC
    Inventor: Matthew Aaron Pagan
  • Patent number: 11860738
    Abstract: Embodiments provide systems, methods, and computer program products for enabling user authorization to perform a file level recovery from an image level backup of a virtual machine without the need for access control by an administrator. Specifically, embodiments enable an access control mechanism for controlling access to stored image level backups of a virtual machine. In an embodiment, the virtual machine includes a backup application user interface that can be used to send a restoration request to a backup server. The restoration request can include a machine identifier and a user identifier of the user logged onto the virtual machine. The backup server includes a backup application that determines whether or not the machine identifier contained in the restoration request can be matched to a machine identifier of a virtual machine present in one of the virtual machine backups stored on the backup server.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: January 2, 2024
    Assignee: VEEAM SOFTWARE AG
    Inventor: Anton Gostev
  • Patent number: 11838382
    Abstract: Provided are systems, methods, and computer-program products for a proxy network that can determine, for a set of objects, an initial differential, where the initial differential is determined using a rules data store of a host network. The proxy network can further determine a supplemental differential for the set of objects. The proxy network can further determine a final differential that is the sum of the initial differential and the supplemental differential. The proxy network can further determine a final sum for the set of objects that is the object value less the final differential. The proxy network can further generate an outbound data packet that includes values corresponding to the set of objects and the final sum. When the host network receives the outbound data packet, the host network can modify an object data store using the values corresponding to the set of objects and the final sum.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: December 5, 2023
    Assignee: LOOP COMMERCE, INC.
    Inventors: Roy Erez, Alex Sirota, Gabriel Saunkeah
  • Patent number: 11829250
    Abstract: A computer-implemented method for efficiently backing up large datasets may include (i) identifying data on an application server to be deduplicated by a deduplication server and then stored on a backup server, (ii) dividing the data into subsets, and (iii) for each subset of data subsequent to an initial subset of data, (a) transferring the subset of data to the deduplication server in response to detecting that a previous subset of data has completed transfer to the deduplication server, (b) deduplicating the subset of data in response to detecting that the previous subset of data has completed deduplication, and (c) transferring a deduplicated version of the subset of data to the backup server in response to detecting that the subset of data has completed deduplication and the previous subset of data has completed transfer to the backup server. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: November 28, 2023
    Assignee: Veritas Technologies LLC
    Inventors: Vaijayanti Bharadwaj, Chirag Dalal
  • Patent number: 11829307
    Abstract: Memory controllers, devices, modules, systems and associated methods are disclosed. In one embodiment, an integrated circuit (IC) memory device is disclosed. The memory device includes an array of storage cells and command interface circuitry to receive an internal transfer command. In response to the internal transfer command, transfer logic reads data from a first portion of the array of storage cells, transfers the data as on-chip transfer data, and writes the on-chip transfer data to a second portion of the array of storage cells. In response to the command interface circuitry receiving an interrupt command, the transfer logic pauses the internal transfer operation, and carries out an unrelated memory access operation involving at least the first portion of the array of storage cells or the second portion of the array of storage cells.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: November 28, 2023
    Assignee: Rambus Inc.
    Inventors: Liji Gopalakrishnan, Frederick A. Ware, Brent S. Haukness
  • Patent number: 11816000
    Abstract: A data access recovery apparatus includes: a transceiver; a memory; and a processor communicatively coupled to the transceiver and the memory and configured to: receive a request to restore backed-up unstructured data files associated with the request; send active data files, of the backed-up unstructured data files, to a data-access server in response to receiving the request; receive an indication of a particular data file of the backed-up unstructured data files; and send, in response to receiving the indication, the particular data file to the data-access server before the particular data file would be sent, if at all, absent receiving the indication.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: November 14, 2023
    Assignee: restor Vault, LLC
    Inventor: Jesse Paul Charfauros
  • Patent number: 11816005
    Abstract: Aspects of the present disclosure enable data protection operations including differential and incremental backups by performing changed-block tracking in network or cloud computing systems with architectures that do not natively support changed-block tracking or do not expose changed-block tracking functionality to an information management system. In certain aspects, an identity of changed blocks may be obtained by using a hypervisor configured to interface with the cloud computing architecture. The identified changed blocks may be used to generate a map of the changed blocks. The maps of the changed blocks can be used by a virtual server agent to extract the changed blocks from a copy of a virtual machine disk and backed up to perform a differential or incremental backup.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: November 14, 2023
    Assignee: Commvault Systems, Inc.
    Inventors: Sanjay Kumar, Sumedh Pramod Degaonkar
  • Patent number: 11789617
    Abstract: A data storage system uses erasure coding in combination with hashgraph to organize stored data and recover that data in a computing environment.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: October 17, 2023
    Assignee: Acronis International GmbH
    Inventors: Alexander Tormasov, Serguei Beloussov, Stanislav Protasov
  • Patent number: 11782905
    Abstract: A method and system for streaming data from portable storage devices. Specifically, the disclosed method and system implement iterative data streaming from a portable storage device for remote storage operations, while requiring zero over-provisioning storage space for buffering incoming write operations to the portable storage device.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: October 10, 2023
    Assignee: iodyne, LLC
    Inventor: Jeffrey S. Bonwick
  • Patent number: 11765109
    Abstract: A system and a method for overcoming a partial failure of an application in a telephony communication system are provided. The method includes: receiving information indicating that a first application has experienced a partial failure; receiving, from each of a plurality of applications, metadata that relates to a corresponding ordered priority of partitions, a corresponding Availability Zone from among a plurality of Availability Zones in which the respective application is located, and a corresponding instance index within the corresponding Availability Zone; sorting the received metadata with respect to the corresponding Availability Zone and with respect to the corresponding instance index; and reassigning, based on a result of the sorting, the first application to an instance index within the Availability Zone in which the first application is located such that a number of the partitions within instance indexes in the corresponding Availability Zone is balanced.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: September 19, 2023
    Assignee: JPMORGAN CHASE BANK, N.A.
    Inventors: Rajeshwari Edamadaka, Diarmuid Leonard
  • Patent number: 11748208
    Abstract: Techniques are provided for implementing a persistent memory storage tier to manage persistent memory of a node. The persistent memory is managed by the persistent memory storage tier at a higher level within a storage operating system storage stack than a level at which a storage file system of the node is managed. The persistent memory storage tier intercepts an operation targeting the storage file system. The persistent memory storage tier retargets the operation from targeting the storage file system to targeting the persistent memory. The operation is transmitted to the persistent memory.
    Type: Grant
    Filed: January 16, 2022
    Date of Patent: September 5, 2023
    Assignee: NetApp, Inc.
    Inventors: Ananthan Subramanian, Ram Kesavan, Matthew Fontaine Curtis-Maury, Mark Smith
  • Patent number: 11740810
    Abstract: This application discloses a mirrored memory configuration method and apparatus, and a computer storage medium, and belongs to the field of information processing technologies. The method includes the following: After a computer apparatus is started, if the computer apparatus is currently in an OS state and obtains a mirrored memory establishment request, the computer apparatus may switch from the OS state to a BIOS state through system interruption. Then the computer apparatus configures a mirroring relationship in the BIOS state, and switches to the OS state again after configuring the mirroring relationship, to reconfigure a mirrored memory.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: August 29, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Gang Liu, Fei Zhang
  • Patent number: 11733874
    Abstract: Techniques are provided for managing replication journals in a distributed replication system. A data replication system assigns an associated replication journal volume to each replication component operating on a storage node. Each replication component is configured to handle a portion of a replication workload which is distributed among the replication components, and to write journal data in the associated replication journal volume of the replication component. The data replication system performs a recovery process in response to detecting a failed replication component. The recovery process includes designating at least one replication component as a recovery replication component, designating the associated replication journal volume of the failed replication component as a recovery journal volume, and assigning the recovery journal volume to the recovery replication component to enable the recovery replication component to recover journal data in the recovery journal volume.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: August 22, 2023
    Assignee: EMC IP Holding Company LLC
    Inventors: Rivka Matosevich, Roman Spiegelman, German Goft, Lior Zilpa
  • Patent number: 11726691
    Abstract: When a communication protocol is changed, the I/O function can be appropriately provided. In a computer system, a storage node includes a CPU and a storage control program that performs communication relating to data I/O. The storage control program has a first storage control program that is capable of using a first communication protocol, and a second storage control program that is capable of using the first communication protocol and a second communication protocol. The control node the control node causes, when any storage node of the plurality of storage nodes is capable of executing the first storage control program alone, all storage nodes to perform communication using the first communication protocol. The control node causes, after all storage nodes of the plurality of storage nodes are enabled to execute the second storage control program, the all storage nodes to perform communication using the second communication protocol.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: August 15, 2023
    Assignee: Hitachi, Ltd.
    Inventors: Sachie Tajima, Takahiro Yamamoto, Shintaro Ito, Masakuni Agetsuma
  • Patent number: 11720484
    Abstract: A method, computer program product, and computer system for identifying, by a computing device, content in a first bucket in a first cache. It may be determined that a first portion of the content in the first bucket is a duplicate, wherein a second portion of the content in the first bucket may be unique. The first portion of the content in the first bucket may be deduplicated from the first cache. The second portion of the content may be stored in a second bucket in a second cache.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: August 8, 2023
    Assignee: EMC IP Holding Company, LLC
    Inventors: Bar Harel, Maor Rahamim, Uri Shabi
  • Patent number: 11720457
    Abstract: Techniques for implementing RDMA-based recovery of dirty data in remote memory are provided. In one set of embodiments, upon occurrence of a failure at a first (i.e., source) host system, a second (i.e., failover) host system can allocate a new memory region corresponding to a memory region of the source host system and retrieve a baseline copy of the memory region from a storage backend shared by the source and failover host systems. The failover host system can further populate the new memory region with the baseline copy and retrieve one or more dirty page lists for the memory region from the source host system via RDMA, where the one or more dirty page lists identify memory pages in the memory region that include data updates not present in the baseline copy. For each memory page identified in the one or more dirty page lists, the failover host system can then copy the content of that memory page from the memory region of the source host system to the new memory region via RDMA.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: August 8, 2023
    Assignee: VMware, Inc.
    Inventors: Keerthi Kumar, Halesh Sadashiv, Sairam Veeraswamy, Rajesh Venkatasubramanian, Kiran Dikshit, Kiran Tati
  • Patent number: 11716382
    Abstract: An embodiment method creates, at a first data center, a first storage volume for an application that is started at the first data center, communicates with a second data center for creating a second storage volume for the application at the second data center to replicate the first storage volume, and sends information identifying the application to the second data center. The second data center creates the second storage volume, and establishes a mapping between the application and the second storage volume using the information identifying the application, where the second data center identifies the second storage volume for the application using the mapping when the application is migrated from the first data center to the second data center.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: August 1, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Vadim Longinov, Serge Kornfeld, Ning Wu, Xiali He
  • Patent number: 11709630
    Abstract: A memory system includes a nonvolatile memory and a controller. The nonvolatile memory has first regions in which data writes and data reads can be executed in parallel. Each of the first regions has second regions which are each a data write/read unit. The controller acquires first values indicating a data write load for each of the first regions, detects a first region having a first value greater than or equal to a first threshold, acquires second values indicating a data write load for each of the plurality of second regions in the detected first region, detects a second region having a second value greater than or equal to a second threshold but less than or equal to a third threshold that is higher than the second threshold, and then move data from the detected second region to a second region in another first region.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: July 25, 2023
    Assignee: Kioxia Corporation
    Inventor: Akiyuki Kaneko
  • Patent number: 11681584
    Abstract: An interface between an existing local file system and a data store generates and exports to the data store a versioned file system. The state of the local file system at a given point in time can be determined using the versioned file system. In operation, the interface creates and exports to the data store structured data representations, which correspond to versions of the local file system, as well as actual file system data that these structured data representations represent. A cache associated with the interface stores recently used data and metadata, as well as all write data and metadata waiting to be transferred to the data store. Prior to transfer, one or more data transformations may be applied to the data and metadata. In one embodiment, the data store comprises one or more cloud storage service providers. A content control system is used to configure and manage the interface.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: June 20, 2023
    Assignee: Nasuni Corporation
    Inventors: Robert S. Mason, Jr., Andres Rodriguez
  • Patent number: 11669465
    Abstract: This disclosure is directed to a computing system that performs techniques relating to the secure storage, maintenance, and retrieval of data. Techniques described in this disclosure may prevent, limit, or otherwise insulate the data from unauthorized access by hackers, rogue devices, and unauthorized users. In some examples, a computing system may store a file by fracturing the file into multiple data blocks, encrypting the data blocks or the data stored within the data blocks, and storing the data blocks in scattered locations on a network. Further, the computing system may occasionally move at least some of the stored data blocks, and may, upon moving such data blocks, reencrypt the moved data blocks with a different encryption key. Still further, the computing system may inject fake data and/or fake data blocks into the system.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: June 6, 2023
    Assignee: Wells Fargo Bank, N.A.
    Inventors: Basil F. Nimry, Nicholas Gillis, Ankush Bhatia
  • Patent number: 11669252
    Abstract: A storage system that can achieve a cryptographic operation circuit that supports multiple types of cryptographic operation formats. The cryptographic operation circuit is provided that encrypts data according to the format determined by the processor based on a request by the host terminal for writing the data into the storage device, and decrypts the encrypted data on the data stored in the storage device according to the format determined by the processor based on a request by the host terminal for reading the data from the storage device.
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: June 6, 2023
    Assignee: HITACHI, LTD.
    Inventors: Shumpei Morita, Tomoyuki Kamazuka, Hideaki Monji, Yuusaku Kiyota
  • Patent number: 11656949
    Abstract: In some examples, a method comprises: receiving a request to read data within a specified range from a backup file storing at least one base snapshot and at least one incremental snapshot; looking up the specified range in range filters from the backup file, the range filters corresponding to snapshots stored in the backup file and each range filter comprising bits indicating whether data exists at respective ranges within the snapshot corresponding to the respective range filter; and in response to the looking up, reading the requested data from the looked-up range in the backup file.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: May 23, 2023
    Assignee: Rubrik, Inc.
    Inventors: Vijay Karthik, Abdullah Reza
  • Patent number: 11659064
    Abstract: An improved information management system that implements a staging area or cache to temporarily store primary data in a native format before the primary data is converted into secondary copies in a secondary format is described herein. For example, the improved information management system can include various media agents that each include one or more high speed drives. When a client computing device provides primary data for conversion into secondary copies, the primary data can initially be stored in the native format in the high speed drive(s). If the client computing device then submits a request for the primary data, the media agent can simply retrieve the primary data from the high speed drive(s) and transmit the primary data to the client computing device. Because the primary data is already in the native format, no conversion operations are performed by the media agent, thereby reducing the restore delay.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: May 23, 2023
    Assignee: Commvault Systems, Inc.
    Inventors: Ramachandra Reddy Ankireddypalle, Manoj Kumar Vijayan, Pratima Bapusaheb Kudale, Anuradha Talur, Manivannan Subramaniam
  • Patent number: 11656950
    Abstract: Techniques involve: acquiring a first source snapshot for a source storage object stored in a source storage device; determining first difference data between the first source snapshot and the source storage object or a second source snapshot for the source storage object, creation time of the first source snapshot being associated with creation time of the second source snapshot; and sending the first difference data to a destination storage device to enable the destination storage device to create a first destination snapshot for a destination storage object stored in the destination storage device based on the first difference data. Such techniques can migrate snapshots more efficiently to improve storage management efficiency.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: May 23, 2023
    Assignee: EMC IP Holding Company LLC
    Inventors: Jian Kang, Chenglin Li, Ruiyang Zhang, Mingyi Luo, Hongyuan Zeng
  • Patent number: 11630686
    Abstract: Novel tools and techniques are provided for implementing virtual machine (“VM”) management, and, more particularly, to methods, systems, and apparatuses for implementing VM management using hardware compression. In various embodiments, a computing system might identify one or more first virtual machines (“VM's”) among a plurality of VM's that are determined to be currently inactive and might identify one or more second VM's among the plurality of VM's that are determined to be currently active. The computing system might compress a virtual hard drive associated with each of the identified one or more first VM's that are determined to be currently inactive. The computing system might also perform or continue to perform one or more operations using each of the identified one or more second VM's that are determined to be currently active.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: April 18, 2023
    Assignee: CenturyLink Intellectual Property LLC
    Inventor: Ronald A. Lewis
  • Patent number: 11614879
    Abstract: A technique replicates an index of an operations log (oplog) from a primary node to a secondary node of a cluster in the event of failure. The oplog functions as a staging area to coalesce random write operations directed to a virtual disk (vdisk) stored on a backend storage tier. The oplog temporarily caches write data as well as metadata describing the write data. The metadata includes descriptors to the write data corresponding to offset ranges of the vdisk and are used to identify ranges of write data for the vdisk that are cached in the oplog. To facilitate fast lookup operations of whether write data is cached in the oplog, an oplog index provides a state of the latest data for offset ranges of the vdisk that enables fast failover of metadata used to construct the oplog index in memory without downtime or significant metadata replay.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: March 28, 2023
    Assignee: Nutanix, Inc.
    Inventors: Alok Nemchand Kataria, Niranjan Sanjiv Pendharkar, Pete Wyckoff, Rishi Bhardwaj, Rohit Jain, Shubham Shukla, Tabrez Parvez Memon
  • Patent number: 11599290
    Abstract: Embodiments of the present disclosure provide a data storage method, an electronic device, and a computer program product. The method includes: determining the number of at least one first storage apparatus of a storage system, each first storage apparatus being persistent and storing a log that includes record entries of to-be-stored data; and writing, if it is determined that the number is greater than a threshold number, the to-be-stored data into a corresponding memory table from the log where the to-be-stored data is located, wherein data in the memory table will be written to a second storage apparatus of the storage system. In this way, the storage efficiency of the storage system can be improved.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: March 7, 2023
    Assignee: EMC IP HOLDING COMPANY LLC
    Inventors: Yong Yang, Yunhai Gong
  • Patent number: 11593160
    Abstract: In some embodiments, a method for cluster resource scheduling, includes determining at least one load score; determining a memory score; determining an IO score; and monitoring a message bus for candidate messages when each of the at least one load score, memory score, and IO score is less than a pre-determined health threshold. In some embodiments, a host computer system for hosting a plurality of virtual machines (VMs), includes: a memory; a network adapter for communicating with the cluster by way of a message bus; a processor in electronic communication with the memory and the network adapter, wherein the processor is programmed to: determine at least one load score; determine a memory score; determine an IO score; and monitor the message bus for candidate messages when each of the at least one load score, memory score, and IO score is less than a pre-determined health threshold.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: February 28, 2023
    Assignee: HiveIO Inc.
    Inventors: Ofer Bezalel, Pratik Gaikwad, Ian Reinhart Geiser, John Joseph Mullen
  • Patent number: 11567925
    Abstract: Aspects of the present disclosure relate to managing concurrent updates on data. A transactional update on at least one record within a data set is detected. A log is generated for the transactional update, the log including an image of the at least one record within the data set before the transactional update. A batch update is detected. A determination is made whether the batch update collides with the transactional update by referencing the log. In response to determining that the batch update collides with the transactional update, a collision policy is referenced. A collision action indicated in the collision policy is then issued.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: January 31, 2023
    Assignee: International Business Machines Corporation
    Inventors: Kam Ho Ho, Lawrence Loong-Tak Law, Helen Maria Witter, Clifford Peter Chan, Patricia Hatami Mejia
  • Patent number: 11561722
    Abstract: A processing device, operatively coupled with a memory device, is configured to perform a write operation on a page of a plurality of pages of a data unit of a memory device, to store host data in the page of the data unit. The processing device further generates a parity page for the host data stored in the page of the data unit and adds the parity page to parity data stored at a parity data storage location. Responsive to determining that a first size of the stored parity data satisfies a first condition, the processing device initiates execution of a compression algorithm to compress the stored parity data. Responsive to determining that a second size of the parity data resulting from the execution of the compression algorithm satisfies a second condition, the processing device performs a scan operation to release at least a subset of the stored parity data.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: January 24, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Harish R Singidi, Ashutosh Malshe, Vamsi Pavan Rayaprolu, Kishore Kumar Muchherla
  • Patent number: 11556268
    Abstract: A method and system for cache-based flow of a simple copy command is disclosed. The present disclosure generally relates to methods and systems for executing a simple copy command in a manner that mitigates additional latency in the device. According to certain embodiments, a copy command manager that includes one or more copy command slots is provided. When a simple copy command is received from a host, a copy command slot is allocated to the command, and the simple copy command is copied into the copy command slot. Upon copying the simple copy command to the copy command slot, an overlap table of the data storage device controller is updated to indicate the copy has been completed, and the completion is posted to the host. After posting, the simple copy command is carried out in the background through completion.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: January 17, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Shay Benisty, Judah Gamliel Hahn, Ariel Navon
  • Patent number: 11531487
    Abstract: Creating a replica of a storage system, including: receiving, by a first storage system from a computing device, data to be stored on the first storage system; reducing, by the first storage system, the data using one or more data reduction techniques; sending, from the first storage system to the second storage system, the reduced data, wherein the reduced data is encrypted; and sending, from the second storage system to a third storage system, the reduced data, wherein the reduced data is encrypted.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: December 20, 2022
    Assignee: PURE STORAGE, INC.
    Inventors: Ronald Karr, Constantine Sapuntzakis, John Colgrove
  • Patent number: 11516050
    Abstract: Technologies are disclosed for monitoring network traffic using traffic mirroring. According to some examples, traffic mirroring allows customers to monitor traffic at different sources within a VPC. For example, a source may be any Elastic Network Interface (ENI) in their VPC, including elastic network interfaces (ENIs) on virtual machine instances, Network Address Translation (NAT) Gateways, Load Balancers, VPC endpoints, Internal Gateways, Transit Gateways, and more. Filters can be utilized to determine the network traffic to mirror. A customer may also configure to monitor real-time traffic with a monitoring appliance of their choice. With traffic mirroring, data traffic may be identified and sent to one or more target devices. Customers may monitor traffic within a VPC for content inspection, forensic analysis, troubleshooting, record keeping, and the like.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: November 29, 2022
    Assignee: Amazon Technologies, Inc.
    Inventors: Anoop Dawani, Joseph Elmar Magerramov, Zachary Brandes, Apoorv Mittal, Bharadwaj Avva, Ryan James Schaefer, Kiran Venkat Sayeeram Karpurapu, Ajay Jha, Steven Bruce Richards, Richard H Galliher