Patents Assigned to NetApp, Inc.
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Patent number: 12222827Abstract: Systems and methods for an improved High-Availability (HA) resource reservation approach are provided. According to one embodiment, for a given cluster of greater than two nodes in which a number (f) of concurrent node failures are to be tolerated, more efficient utilization of resources for an HA system may be achieved by distributing HA reserved capacity across more than f nodes of the cluster rather than naively concentrating the HA reserved capacity in f nodes. As node failures are not a common occurrence, those of the nodes of the cluster having HA reserved capacity may allow for some bursting of one or more units of compute executing thereon unless or until f concurrent node failures occur, thereby promoting more efficient utilization of node resources.Type: GrantFiled: August 30, 2022Date of Patent: February 11, 2025Assignee: NetApp, Inc.Inventor: Ardalan Kangarlou
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Publication number: 20250045163Abstract: 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: ApplicationFiled: August 9, 2024Publication date: February 6, 2025Applicant: NetApp, Inc.Inventors: Morgan Mears, Samuel Quincy Fink
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Publication number: 20250045168Abstract: Systems and methods for preserving storage efficiency during restoration of data from the cloud are provided. In one embodiment, a CBMAP is maintained that maps cloud block numbers (CBNs) to respective corresponding block numbers of a volume of a data storage system in which previously restored data has been stored by a previously restored file. By making use of the CBMAP during the restoration process, storage of duplicate file data blocks on the volume may be avoided by sharing with a current file being restored a reference to the corresponding file data block previously stored on the volume and associated with the previously restored file. In addition to preserving storage efficiency, use of the CBMAP facilitates avoidance of repeated GET operations for data associated with CBNs previously retrieved from the cloud and stored to the volume, thereby reducing data access costs as well as latency of the restore operation.Type: ApplicationFiled: October 22, 2024Publication date: February 6, 2025Applicant: NetApp, Inc.Inventors: Sumith Makam, Roopesh Chuggani, Dnyaneshwar Pawar, Abhisar null
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Publication number: 20250044992Abstract: Systems and methods for supporting dynamic disk growth within a storage appliance are provided. According to one embodiment, a portion of a logical size of each of multiple disks (e.g., hyperscale disks or Logical Unit Numbers (LUNs)) are provisioned for use by a storage system as backing for respective file system disks. To accommodate growth, block numbers for the file system disks are pre-allocated within a sparse space of a contiguous sequence of block numbers corresponding to a number of blocks represented by the logical size. Metadata is maintained for the file system disks regarding a range of the pre-allocated block numbers that are available for use. Responsive to a triggering condition, the provisioned portion of a disk is increased and subsequently, responsive to detecting a change in a size of the disk by the storage system, a size of the corresponding file system disk is updated within the metadata.Type: ApplicationFiled: October 21, 2024Publication date: February 6, 2025Applicant: NetApp, Inc.Inventors: Mrinal K. Bhattacharjee, Jagadish Vasudeva, Sateesh Kumar Pola
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Publication number: 20250047302Abstract: Techniques are provided for implementing additional compression for existing compressed data. Format information stored within a data block is evaluated to determine whether the data block is compressed or uncompressed. In response to the data block being compressed according to a first compression format, the data block is decompressed using the format information. The data block is compressed with one or more other data blocks to create compressed data having a second compression format different than the first compression format.Type: ApplicationFiled: August 8, 2024Publication date: February 6, 2025Applicant: NetApp, Inc.Inventors: Roopesh Chuggani, Rahul Thapliyal
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Patent number: 12219010Abstract: According to one embodiment, a computer implemented method comprises providing multiple channels between a first storage node and a second storage node with each channel having a separate network connection for packets of a transport layer session, assigning packets from each channel to a group of receive queues of the second storage node, continuously monitoring whether two or more channels of the multiple channels share a same receive queue of the second storage node, and sending a communication via a channel to the first storage node to indicate a dynamic change in a hash input field (e.g., a source port, a destination port, a source internet protocol (IP) address, and a destination IP address) when two or more channels of the multiple channels share a same receive queue of the second storage node.Type: GrantFiled: September 14, 2023Date of Patent: February 4, 2025Assignee: NetApp, Inc.Inventors: Yanbei Wang, Houze Xu
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Publication number: 20250036597Abstract: Systems and methods for reducing read application in a virtual storage system are provided. According to one embodiment, heuristic data may be tracked and utilized in real-time by a file system of the virtual storage system at the level of granularity of a volume, thereby allowing a fast path flag to be enabled/disabled at a volume level during various phases of operation of a workload. The heuristic data for a given volume may be indicative of a correlation between (i) data blocks stored on the given volume being located within a compressible zone of a zoned checksum scheme and (ii) the respective data blocks containing compressed data and a corresponding checksum. Based on the heuristic data, read requests may be selectively directed to the read path (e.g., a fast path or a slow path) expected to mitigate read amplification when data compression is enabled for a zoned checksum scheme.Type: ApplicationFiled: October 16, 2024Publication date: January 30, 2025Applicant: NetApp, Inc.Inventors: Ritika, Jagadish Vasudeva, Vani Vully, Raj Kamal, Deepak Dangi, Parag Deshmukh
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Patent number: 12210747Abstract: 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 receive a plurality of quality of service (QoS) parameters and client preferences from a client device and manage a QoS policy based on a plurality of QoS objectives included in the received QoS parameters, wherein the plurality of QoS objectives comprise input output operations per second (IOPS), throughput and latency.Type: GrantFiled: March 31, 2021Date of Patent: January 28, 2025Assignee: NetApp, IncInventors: Austino Longo, Tyler Cady
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Patent number: 12210422Abstract: 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: GrantFiled: August 31, 2023Date of Patent: January 28, 2025Assignee: NetApp, Inc.Inventors: Ananthan Subramanian, Ram Kesavan, Matthew Fontaine Curtis-Maury, Mark Smith
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Patent number: 12210757Abstract: Techniques are provided for incremental snapshot copy to an object store. A list of deallocated block numbers of primary storage of a computing device are identified. Entries for the list of deallocated block numbers are removed from a mapping metafile. A list of changed block numbers corresponding to changes between a current snapshot of the primary storage and a prior copied snapshot copied from the primary storage to the object store is determined. The mapping metafile is evaluated using the list of changed block numbers to identify a deduplicated set of changed block numbers without entries within the mapping metafile. An object, comprising data of the deduplicated set of changed block numbers, is transmitted to the object store for storage as a new copied snapshot.Type: GrantFiled: June 26, 2023Date of Patent: January 28, 2025Assignee: NetApp, Inc.Inventors: Tijin George, Jagavar Nehra, Roopesh Chuggani, Dnyaneshwar Nagorao Pawar
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Patent number: 12210431Abstract: Techniques are provided for implementing a unified object format. The unified object format is used to format data in a performance tier (e.g., infrequently accessed data, snapshot data, etc.) into objects that are stored into an object store for low cost, scalable, long term storage compared to storage of the performance tier. With the unified object format, compression of the data may be retained when the data is stored as the objects into the object store. Additional compression may also be provided for the data in the objects. The unified object format includes slot header metadata used to track the location of the data within the object notwithstanding the data being compressed and/or stored at non-fixed boundaries. The slot header metadata may be cached at the performance tier for improved read performance and may be repaired by a repair subsystem (a slot header repair subsystem).Type: GrantFiled: April 28, 2022Date of Patent: January 28, 2025Assignee: NetApp, Inc.Inventors: Palak Sharma, Dibyasri Nandi, Sindhushree K N, Cheryl Marie Thompson, Qinghua Zheng, Venkateswarlu Tella, Debanjan Paul, Dinakaran Narayanan
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Patent number: 12210429Abstract: Failover methods and systems for a networked storage environment are provided. In one aspect, a read request associated with a first storage object is received, during a replay of entries of a log stored in a non-volatile memory of a second storage node for a failover operation initiated in response to a failure at a first storage node. The second storage node operates as a partner node of the first storage node. The read request is processed using a filtering data structure that is generated from the log prior to the replay and identifies each log entry. The read request is processed when the log does not have an entry associated with the read request, and when the filtering data structure includes an entry associated with the read request, the requested data is located at the non-volatile memory.Type: GrantFiled: August 1, 2023Date of Patent: January 28, 2025Assignee: NETAPP, INC.Inventors: Asif Imtiyaz Pathan, Parag Sarfare, Ananthan Subramanian, Szu-Wen Kuo, Santhosh Selvaraj, Nikhil Mattankot
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Publication number: 20250028574Abstract: Systems, methods, and machine-readable media for monitoring a storage system and correcting demand imbalances among nodes in a cluster are disclosed. A performance manager for the storage system may detect performance imbalances that occur over a period of time. When operating below an optimal performance capacity, the manager may cause a volume to be moved from a node with a high load to a node with a lower load to achieve a preventive result. When operating at or near optimal performance capacity, the manager may cause a QOS limit to be imposed to prevent the workload from exceeding the performance capacity, to achieve a proactive result. When operating abnormally, the manager may cause a QOS limit to be imposed to throttle the workload to bring the node back within the optimal performance capacity of the node, to achieve a reactive result. These actions may be performed independently, or in cooperation.Type: ApplicationFiled: July 29, 2024Publication date: January 23, 2025Applicant: NetApp, Inc.Inventors: Abhishek Hiregoudar, Siu Wu, Alma Dimnaku
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Patent number: 12204416Abstract: Multi-site distributed storage systems and computer-implemented methods are described for improving a resumption time of input/output (I/O) operations during a common snapshot procedure for storage objects. A computer-implemented method includes initiating a snapshot multi create operation to selectively form a batch of first and second synchronous replicated datasets that belong to a first group of storage disks at the primary storage site and corresponding second group of storage disks at the secondary storage site, performing a batch snapshot create operation on the primary storage site by executing snapshots of storage objects on the primary storage site of the batch of first and second synchronous replicated datasets in parallel multiple threads to effectively utilize processing resources on the primary storage site, and initiating an independent workflow and state machine for each storage object of the batch of first and second synchronous replicated datasets.Type: GrantFiled: December 30, 2022Date of Patent: January 21, 2025Assignee: NetApp, Inc.Inventors: Akhil Kaushik, Dhruvil Shah, Arun Kumar Selvam
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Patent number: 12206734Abstract: One or more techniques and/or computing devices are provided for implementing synchronous replication. For example, a synchronous replication relationship may be established between a first storage controller hosting local storage and a second storage controller hosting remote storage (e.g., replication may be specified at a file, logical unit number (LUN), or any other level of granularity). Data operations and offloaded operations may be implemented in parallel upon the local storage and the remote storage. Error handling operations may be implemented upon the local storage and implement in parallel as a best effort on the remote storage, and a reconciliation may be performed to identify any data divergence from the best effort parallel implementation. Storage area network (SAN) operations may be implemented upon the local storage, and upon local completion may be remotely implemented upon the remote storage.Type: GrantFiled: January 3, 2022Date of Patent: January 21, 2025Assignee: NetApp, Inc.Inventors: Paul Anthony Powell, Akhil Kaushik, Srikumar Natarajan, Ching-Yuk Paul Ngan
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Patent number: 12204403Abstract: Methods and systems for a storage environment are provided. One method includes copying a data unit from a first temporary storage location corresponding to each zoned solid-state drive (ZNS SSD) of a first ZNS SSD set of a storage system to a first XOR module, while determining a first partial horizontal parity using the data unit stored in the first temporary storage location; and determining a vertical parity for each ZNS SSD of the first ZNS SSD set using the data unit provided to the first XOR module in a current cycle and vertical parity determined from a previous cycle.Type: GrantFiled: October 6, 2023Date of Patent: January 21, 2025Assignee: NETAPP, INC.Inventor: Abhijeet Prakash Gole
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Patent number: 12204766Abstract: Methods and systems for managing storage is provided. One method includes initializing, a storage service user interface (“SSUI”) within a cloud manager user interface (“CMUI”), the SSUI enables a storage service operation selected from a backup operation, a restore operation and a cloning operation associated with a storage object stored at a cloud volume presented by a cloud layer, the CMUI presented by a cloud provider; transmitting, by the SSUI, an authorization token to a Software As a Service (“SaaS”) layer for authenticating deployment of the SSUI; upon validating the authorization token, initializing a SSUI agent to interface with a deployed storage micro-service layer offered by the cloud layer to execute the storage service operation; transmitting, by the SSUI, an application programming interface (API) request for the SSUI agent for executing the storage service operation; and executing, by the deployed storage micro-service layer, the storage service operation.Type: GrantFiled: June 8, 2023Date of Patent: January 21, 2025Assignee: NETAPP, INC.Inventors: Anu O. Mangaly, Deen Dayal Pareta, Sumeet Kumar Sethy, Khaja Hussain Surajuddin
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Patent number: 12204800Abstract: Techniques are provided for implementing a garbage collection process and a prediction read ahead mechanism to prefetch keys into memory to improve the efficiency and speed of the garbage collection process. A log structured merge tree is used to store keys of key-value pairs within a key-value store. If a key is no longer referenced by any worker nodes of a distributed storage architecture, then the key can be freed to store other data. Accordingly, garbage collection is performed to identify and free unused keys. The speed and efficiency of garbage collection is improved by dynamically adjusting the amount and rate at which keys are prefetched from disk and cached into faster memory for processing by the garbage collection process.Type: GrantFiled: April 28, 2022Date of Patent: January 21, 2025Assignee: NetApp, Inc.Inventors: Anil Paul Thoppil, Wei Sun, Meera Odugoudar, Szu-Wen Kuo, Santhosh Selvaraj
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Patent number: 12204791Abstract: Systems and methods are described for using a Deep Reinforcement Learning (DRL) agent to automatically tune Quality of Service (QoS) settings of a distributed storage system (DSS). According to one embodiment, a DRL agent is trained in a simulated environment to select QoS settings (e.g., a value of one or more of a minimum IOPS parameter, a maximum IOPS parameter, and a burst IOPS parameter). The training may involve placing the DRL agent into every feasible state representing combinations of QoS settings, workload conditions, and system metrics for a period of time for multiple iterations, and rewarding the DRL agent for selecting QoS settings that minimize an objective function based on a selected measure of system load. The trained DRL agent may then be deployed to one or more DSSs to constantly update QoS settings so as to minimize the selected measure of system load.Type: GrantFiled: August 2, 2023Date of Patent: January 21, 2025Assignee: NetApp, Inc.Inventor: Tyler W. Cady
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Patent number: 12204784Abstract: Systems and methods for performing a zero-copy volume move between nodes of a distributed storage system are provided. In one example, an approach for performing a zero-copy volume move is proposed in which volume data may be maintained in place within a storage pod and need not be copied to move a given volume between the source node and the destination node. In one embodiment, metadata (e.g., a top-most physical volume block number (PVBN) of a node tree representing the volume at issue) of a write-anywhere file system is copied from the source node to the destination node. Since the storage pod is associated with a global PVBN space that is visible and accessible to all nodes of the distributed storage system, as a result of copying the top-mode PVBN of the volume to the destination node, anything below the top-most PVBN will automatically be visible to the destination node.Type: GrantFiled: April 29, 2024Date of Patent: January 21, 2025Assignee: NetApp, Inc.Inventors: Anil Paul Thoppil, Ananthan Subramanian, Kevin Daniel Varghese, Garima Choudhary, Qinghua Zheng