Patents Assigned to NetApp, Inc.
  • Patent number: 12079177
    Abstract: Systems, methods, and data structures for providing a file system with object versioning support are provided. Rather than adding object records for each version of an object to a chapter record, in one example, the chapter record may be limited to a single object record for the object including: (i) an object name of the object; (ii) an object file handle identifying an index of a file containing data of a current version of the multiple versions of the object; and (iii) a version table file handle identifying an index of a file containing a version table. In this manner, enumeration of objects associated with a given chapter may be performed more efficiently and prior versions of objects may be maintained within the version table without disproportionate growth of chapter records and without increasing the search depth with objects that are not referenced by the search at issue.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: September 3, 2024
    Assignee: NetApp, Inc.
    Inventors: Dhairesh Oza, Roger W. Cox
  • Patent number: 12079519
    Abstract: Techniques are provided for implementing a distributed control plane to facilitate communication between a container orchestration platform and a distributed storage architecture. The distributed storage architecture hosts worker nodes that manage distributed storage that can be made accessible to applications within the container orchestration platform through the distributed control plane. The distributed control plane includes control plane controllers that are each paired with a single worker node of the distributed storage architecture. The distributed control plane is configured to selectively route commands to control plane controllers that are paired with worker nodes that are current owners of objects targeted by the commands. If ownership of an object has changed from one worker node to another worker node, then subsequent commands will be re-routed to a control plane controller paired with the other worker node now owning the object.
    Type: Grant
    Filed: October 16, 2023
    Date of Patent: September 3, 2024
    Assignee: NetApp, Inc.
    Inventors: Praveen Kumar Hasti, Christopher Alan Busick
  • Patent number: 12079242
    Abstract: Systems and methods for scaling application and/or storage system functions of a distributed storage system based on a heterogeneous resource pool are provided. According to one embodiment, the distributed storage system has a composable, service-based architecture that provides scalability, resiliency, and load balancing. The distributed storage system includes a cluster of nodes each potentially having differing capabilities in terms of processing, memory, and/or storage. The distributed storage system takes advantage of different types of nodes by selectively instating appropriate services (e.g., file and volume services and/or block and storage management services) on the nodes based on their respective capabilities. Furthermore, disaggregation of these services, facilitated by interposing a frictionless layer (e.g.
    Type: Grant
    Filed: October 19, 2022
    Date of Patent: September 3, 2024
    Assignee: NetApp, Inc.
    Inventors: Arindam Banerjee, Daniel McCarthy, Christopher Cason, Ananthan Subramanian
  • Patent number: 12079193
    Abstract: In one embodiment, distributed data storage systems and methods are described for integrating a change tracking manager with scalable databases. According to one embodiment, a computer implemented method comprises managing storage of objects and continuously tracking changes of the objects in a distributed object storage database, creating a record for an object having an object name, the object being stored in a bucket of the distributed object storage database, linking the bucket to a peer bucket based on a directive, generating a peer marker field for the record to store one peer marker of multiple different peer markers depending on a relationship between the bucket and the peer bucket; and automatically adding a work item for the object to the secondary index of a chapter database based on the record being created in the bucket and the peer marker for the peer bucket.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: September 3, 2024
    Assignee: NetApp, Inc.
    Inventor: Richard Parvin Jernigan, IV
  • Publication number: 20240289240
    Abstract: Systems and methods that make use of cluster-level redundancy within a distributed storage system to address various node-level error scenarios are provided. Rather than making use of a generalized one-size-fits-all approach in an effort to reduce complexity, an approach tailored to the node-level error scenario at issue may be performed to avoid doing more than necessary. According to one embodiment, responsive to identification of a failed RAID stripe by a node of a cluster of a distributed storage management system, for each block ID of multiple block IDs associated with the failed RAID stripe, a data block is restored corresponding to the block ID by reading the data block from another node of the cluster having a redundant copy of the data block; and writing the redundant copy of the data block to a storage area of the node that is unaffected by the failed RAID stripe.
    Type: Application
    Filed: May 1, 2024
    Publication date: August 29, 2024
    Applicant: NetApp, Inc.
    Inventors: Wei Sun, Anil Paul Thoppil, Anne Marie Vasu
  • Publication number: 20240289207
    Abstract: Systems and methods for automated remediation of deviations from best practices in the context of a data management storage system are provided. Deployed assets of a storage solution vendor may periodically deliver telemetry data to the vendor. The telemetry data may be processed by an AIOps platform to perform predictive analytics and arrive at “community wisdom” from the vendor's installed base. In one embodiment, an insight-based approach is used to facilitate risk detection and remediation including proactively addressing deviations from best practices before they turn into more serious problems. Based on the community wisdom and making a rule set and a remediation set derived therefrom available for use by auto-healing service associated with a customer's storage system, a risk (e.g., a deviation from a best practice) to which the storage system is exposed may be determined and a corresponding remediation may be deployed to address or mitigate the risk.
    Type: Application
    Filed: April 25, 2024
    Publication date: August 29, 2024
    Applicant: NetApp, Inc.
    Inventors: Nibu Habel, Jeffrey Scott MacFarland
  • Patent number: 12073091
    Abstract: One or more techniques and/or computing devices are provided for resynchronization. For example, a request may be received to create pseudo snapshots of a first consistency group, hosted by a first storage controller, and a second consistency group, hosted by a second storage controller, having a synchronous replication relationship with the first consistency group. Incoming client write requests are logged within an intercept tracking log at the first storage controller. After a first drain without hold of incoming write requests is performed, a first pseudo common snapshot of the second consistency group is created. After a second drain without hold of incoming write operations is performed, a second pseudo common snapshot of the first consistency group and the intercept tracking log is created. The pseudo snapshots and the intercept tracking log (e.g., indicating a delta between the pseudo snapshots) are used to resynchronize the first and second consistency groups.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: August 27, 2024
    Assignee: NetApp, Inc.
    Inventors: Akhil Kaushik, Ripulkumar Hemantbhai Patel, Vrishali Dattatray Hajare, Andrew Eric Dunn, Rithin Kumar Shetty
  • Patent number: 12073123
    Abstract: Techniques are provided for compacting indirect blocks. For example, an object is represented as a structure comprising data blocks within which data of the object is stored and indirect blocks comprising block numbers of where the data blocks are located in storage. Block numbers within a set of indirect blocks are compacted into a compacted indirect block comprising a base block number, a count of additional block numbers after the base block number in the compacted indirect block, and a pattern of the block numbers in the compacted indirect block. The compacted indirect block is stored into memory for processing access operations to the object. Storing compacted indirect blocks into memory allows for more block numbers to be stored within memory. In this way, the block numbers are read from memory is faster than loading the block numbers from disk.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: August 27, 2024
    Assignee: NetApp, Inc.
    Inventors: Ananthan Subramanian, Kumaran Nagappan, Sriram Venketaraman, Szu-Wen Kuo, Yong Eun Cho
  • Patent number: 12073117
    Abstract: Techniques are provided for combining data block and checksum block I/O into a single I/O operation. Many storage systems utilize checksums to verify the integrity of data blocks stored within storage devices managed by a storage stack. However, when a storage system reads a data block from a storage device, a corresponding checksum must also be read to verify integrity of the data in the data block. This results in increased latency because two read operations are being processed through the storage stack and are being executed upon the storage device. To reduce this latency and improve I/O operations per second, a single combined I/O operation corresponding to a contiguous range of blocks including the data block and the checksum block is processed through the storage stack instead of two separate I/O operations. Additionally, I/O operation may be combined into a single request that is executed upon the storage device.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: August 27, 2024
    Assignee: NetApp, Inc.
    Inventors: James Alastair Taylor, Suhas Girish Urkude
  • Patent number: 12066907
    Abstract: The disclosed technology enables quicker initialization of a new master node for a cluster when a previous master node fails by tracking node state in the cluster prior to being designated the new master node. In a particular example, a method includes, in a first node, designated as a current master node for the cluster, managing the cluster based on states of the nodes determined by the first node. While the first node is designated the master node, the method includes each of the nodes collecting, and storing locally, the states of the nodes. In response to a failure of the first node, the method includes selecting a second node of the nodes a new master node. Upon being designated the new master node, the method includes the second node managing the cluster of nodes based on the states of the nodes that the second node collected and stored locally.
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: August 20, 2024
    Assignee: NetApp, Inc.
    Inventors: Daniel McCarthy, Lisa Week
  • Patent number: 12066897
    Abstract: Techniques are provided for persistent memory file system reconciliation. As part of the persistent memory file system reconciliation, high level file system metadata associated with a persistent memory file system of persistent memory is reconciled. Client access to the persistent memory file system is inaccessible until reconciliation of the high level file system metadata has completed. A first scanner is executed to traverse pages of the persistent memory in order to fix local inconsistencies associated with the pages. A local inconsistency of a first set of metadata or data of a page is fixed using a second set of metadata or data of the page. The first scanner is executed asynchronously in parallel with processing client I/O directed to the persistent memory file system.
    Type: Grant
    Filed: April 18, 2023
    Date of Patent: August 20, 2024
    Assignee: NetApp, Inc.
    Inventors: Matthew Fontaine Curtis-Maury, Ram Kesavan, Ananthan Subramanian, Abdul Basit, Vinay Devadas, Yash Hetal Trivedi
  • Patent number: 12066933
    Abstract: Systems and methods are described for a streamlined garbage collection process during which data integrity checking is also performed for a distributed key-value (KV) store utilized by a distributed storage management system. According to one embodiment, by making use of full or truncated block IDs (rather than an intermediate probabilistic data structure, such as a Bloom filter) for garbage collection, data integrity checking can be performed concurrently almost for free. During garbage collection, a block ID compare list is compared to block IDs within the distributed KV store. If a particular block ID is present in the distributed KV store but is missing from the block ID compare list, the corresponding data block represents garbage to be collected. If the particular block ID is present in the block ID compare list but missing from the distributed KV store, a data integrity error has been identified.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: August 20, 2024
    Assignee: NetApp, Inc.
    Inventors: Wei Sun, Mark David Olson, Anil Paul Thoppil
  • Patent number: 12067256
    Abstract: A technique is configured to provide various data protection schemes, such as replication and erasure coding, for data blocks of volumes served by storage nodes of a cluster configured to perform deduplication of the data blocks. Additionally, the technique is configured to ensure that each deduplicated data block complies with data redundancy guarantees of the data protection schemes, while improving storage space of the storage nodes. In order to satisfy the data integrity guarantees while improving available storage space, the storage nodes perform periodic garbage collection for data blocks to optimize storage in accordance with currently applicable data protection schemes.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: August 20, 2024
    Assignee: NetApp, Inc.
    Inventors: Christopher Clark Corey, Daniel David McCarthy, Sneheet Kumar Mishra, Austino Nicholas Longo
  • Publication number: 20240273186
    Abstract: Systems and methods for creation and retention of immutable snapshots to facilitate ransomware protection are provided. According to one embodiment, multiple use cases for retention of snapshots are supported, including (i) maintaining a locked snapshot on a source volume of a first storage system on which it was originally created for at least an associated immutable retention time; (ii) replicating the locked snapshot to a destination volume of a second storage system and also maintaining the replica of the locked snapshot on the destination volume for at least the associated immutable retention time; and (iii) maintaining an unlocked snapshot on the source volume, replicating the unlocked snapshot to the destination volume, locking the replicated snapshot on the destination volume when it has an associated non-zero immutable retention time, and thereafter maintaining the replica on the destination volume in accordance with the immutable retention time.
    Type: Application
    Filed: February 14, 2023
    Publication date: August 15, 2024
    Applicant: NetApp, Inc.
    Inventors: Tijin George, Vijay Srinath, Ling Zheng
  • Publication number: 20240275814
    Abstract: Systems and methods for creation and retention of immutable snapshots to facilitate ransomware protection are provided. According to one embodiment, multiple use cases for retention of snapshots are supported, including (i) maintaining a locked snapshot on a source volume of a first storage system on which it was originally created for at least an associated immutable retention time; (ii) replicating the locked snapshot to a destination volume of a second storage system and also maintaining the replica of the locked snapshot on the destination volume for at least the associated immutable retention time; and (iii) maintaining an unlocked snapshot on the source volume, replicating the unlocked snapshot to the destination volume, locking the replicated snapshot on the destination volume when it has an associated non-zero immutable retention time, and thereafter maintaining the replica on the destination volume in accordance with the immutable retention time.
    Type: Application
    Filed: February 14, 2023
    Publication date: August 15, 2024
    Applicant: NetApp, Inc.
    Inventors: Tijin George, Vijay Srinath, Ling Zheng
  • Patent number: 12061520
    Abstract: One or more systems, devices, computer program products, and/or computer-implemented methods provided herein to use a redundant array of disks. A system can comprise a memory that stores computer executable components, and a processor that executes the computer executable components stored in the memory, wherein the computer executable components can comprise a control component that directs, for n physical drives of a redundant array of disks (RAID) storing data for at least n logical volumes, log-structured writing of data of each logical volume of the at least n logical volumes vertically across chunks of only a single physical drive of the n physical drives, wherein the control component further directs writing of parity data at each of the physical drives, which parity data at each physical drive of the subset respectively corresponds to other ones of the physical drives of the n physical drives.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: August 13, 2024
    Assignee: NetApp, Inc.
    Inventors: Morgan Mears, Samuel Quincy Fink
  • Patent number: 12061525
    Abstract: Techniques are provided for a snapshot difference interface integrated into an object store data management container. The snapshot difference interface is capable of interpreting an object format and snapshot file system format of snapshots backed up to an object store within objects formatted according to the object format. The snapshot difference interface can identify differences between snapshots, such as files that changed between the snapshots, while the snapshots are still resident within the object store. Because the snapshot difference interface does not retrieve the snapshots from the object store, security is improved, resource and network consumption is reduced, there is less of an impact upon client I/O processing, and a catalog of the snapshots can be more efficiently built and recovered in the event of corruption.
    Type: Grant
    Filed: March 31, 2023
    Date of Patent: August 13, 2024
    Assignee: NetApp, Inc.
    Inventors: Tijin George, Sharankumar Yelheri
  • Patent number: 12056056
    Abstract: Methods and systems for a networked storage system are provided. One method includes: generating, by a first node, a dummy entry in a storage location cache of the first node, the dummy entry associated with a read request received by the first node for data stored using a logical object owned by a second node; receiving, by the first node, an invalidation request to invalidate any storage location entry associated with the data, the invalidation request sent in response to the second node receiving a write request to modify the data; invalidating, by the first node, the dummy entry; receiving, by the first node, a response to the read request from the second node with the requested data; and replacing, by the first node, the dummy entry with a storage location entry and invalidating the storage location entry based on the invalidated dummy entry.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: August 6, 2024
    Assignee: NETAPP, INC.
    Inventors: Sumith Makam, Rahul Thapliyal, Kartik R, Roopesh Chuggani, Abhisar Lnu, Maria Josephine Priyanka S
  • Publication number: 20240259360
    Abstract: A system is described. The system includes a processing resource and a non-transitory computer-readable medium, coupled to the processing resource, having stored therein instructions that when executed by the processing resource cause the processing resource to detect an unrecognized Internet Protocol Security (IPsec) packet associated with an IP address at a first node within a cluster, retrieve one or more selector fields from the IPsec packet, query of a security policy database to determine whether a destination IP address included in the one or more retrieved selector fields matches one or more matching outbound IPsec policies associated with a destination IP address, determine whether a matching outbound IPsec policy includes an IPsec policy associated with the destination address entry and establish the first IPsec SA communication session between the first node and the client based on the outbound IPsec policy.
    Type: Application
    Filed: April 9, 2024
    Publication date: August 1, 2024
    Applicant: NetApp, Inc.
    Inventors: Jin Zhang, Surajpal S. Sandhu, Matthew Martin Houston
  • Publication number: 20240256405
    Abstract: A computer-implemented method comprises providing a synchronous replication relationship from one or more storage objects of a first storage node to one or more replicated storage objects of a second storage node, providing an asynchronous replication relationship with an asynchronous update schedule from the one or more storage objects of the first storage node to one or more replicated storage objects of the third storage node to provide a protection configuration, tracking, with the third storage node of the tertiary site, a state of the secondary storage site, automatically performing a failover from the primary storage site to the secondary storage site and activating a synchronous mirror copy for the one or more replicated storage objects of the second storage node, and automatically initiating realignment and reconfiguration of the protection configuration to the tertiary storage site based upon the state of the secondary storage site.
    Type: Application
    Filed: January 27, 2023
    Publication date: August 1, 2024
    Applicant: NetApp, Inc.
    Inventors: Sohan Shetty, Akhil Kaushik