Patents by Inventor Subramaniam Periyagaram

Subramaniam Periyagaram has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11422731
    Abstract: Protecting data stored on a storage system through the use of different storage levels, including: creating a snapshot of a dataset stored on a storage system, wherein the snapshot includes user data and metadata, and wherein the metadata describes the storage layout of the dataset, offloading the snapshot to a first storage level storage system, and migrating, in accordance with a lifecycle policy, the snapshot from the first storage level storage system onto a second storage level storage system.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: August 23, 2022
    Assignee: Pure Storage, Inc.
    Inventors: Alexei Potashnik, Yisha Zhao, Subramaniam Periyagaram, Dirk Meister, Cary Sandvig
  • Patent number: 11340812
    Abstract: A first plurality of block identifiers is sorted based, at least in part, on a measure of spatial locality. A second plurality of block identifiers is sorted based, at least in part, on the measure of spatial locality. At least the first plurality of block identifiers and the second plurality of block identifiers are incrementally merged into a third plurality of block identifiers based, at least in part, on the measure of spatial locality. A block of data corresponding to metadata associated with a plurality of block identifiers of the third plurality of block identifiers is updated.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: May 24, 2022
    Assignee: NETAPP, INC.
    Inventors: Jayalakshmi Pattabiraman, Nikhil Mattankot, Deekshith Belchapada, Blake H. Lewis, Subramaniam Periyagaram, Satya Suresh Chouta Naga Veera, Rohit Singh, Rajesh Khandelwal, James Robert Morefield
  • Publication number: 20210342067
    Abstract: Cost conscious garbage collection, including: selecting one or more storage classes from among a plurality of storage classes of one or more data storage services for storing one or more data objects; determining, for the one or more data objects stored in the one or more data storage services, an estimated quantity of data eligible for garbage collection; and initiating, after determining that resources for continued storage of the one or more data objects exceed resources for performing garbage collection on the data eligible for garbage collection and based upon an expected cost savings based on storage cost savings from performing garbage collection compared against access cost expenses for performing one or more cloud-based operations to perform the garbage collection, garbage collection on the one or more data objects in the one or more data storage services.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 4, 2021
    Inventors: DIRK MEISTER, SUBRAMANIAM PERIYAGARAM, REESE ROBERTSON, PRUDHVI LOKIREDDY
  • Publication number: 20210303523
    Abstract: An illustrative data storage system is configured to replicate, from a source storage system to a target storage system, a pod that includes a file system constructed of block objects. The pod may be a storage system construct that groups storage entities within a namespace and supports operations on the storage entities as a group. The block objects may store metadata for individual files and directories of the file system and may support random read-write access to blocks of data associated with the files and directories of the file system.
    Type: Application
    Filed: April 16, 2021
    Publication date: September 30, 2021
    Inventors: Subramaniam Periyagaram, Dirk Meister, Alexei Potashnik, Zoheb Shivani, Tejal Joshi Chakeres, Chu Zang, Ronald Karr
  • Publication number: 20210303528
    Abstract: An illustrative data storage system establishes path sets that represent relationships between service layer entities and storage layer entities associated with service layer entities. The data storage system coordinates, based on the path sets and on operations applied to one or more of the service layer entities, implementation of the operations on the storage layer entities. The path sets may be used to support implementation of snapshots, space accounting, and/or other operations of the data storage system.
    Type: Application
    Filed: September 16, 2020
    Publication date: September 30, 2021
    Inventors: Dirk Meister, Subramaniam Periyagaram, David A. Grunwald, Ronald Karr
  • Publication number: 20210303155
    Abstract: An illustrative unified data storage method includes providing, by a data storage system, block containers that represent a linear address space of blocks; and using, by the data storage system, the block containers to store content for a plurality of different data storage services. In certain examples, the different data storage services include at least one of a file storage service, an object storage service, or a database service.
    Type: Application
    Filed: March 30, 2020
    Publication date: September 30, 2021
    Inventors: Dirk Meister, Matthew Paul Fay, Subramaniam Periyagaram, Ronald Karr, David A. Grunwald
  • Publication number: 20210303522
    Abstract: An illustrative data storage system is configured to use pods to efficiently copy files systems constructed of block objects. In certain examples, the storage system generates, based on a pod that includes a file system constructed of block objects, a virtual copy of the pod such that modifications made to the pod (e.g., modifications to contents of the block objects by way of the pod) after the generation of the virtual copy of the pod are distinct from the virtual copy of the pod. In certain examples, the virtual copy of the pod is a writeable clone of the pod and modifications made to the clone (e.g., modifications to contents of the block objects by way of the clone) after the generation of the clone are distinct from the pod.
    Type: Application
    Filed: January 29, 2021
    Publication date: September 30, 2021
    Inventors: Subramaniam Periyagaram, Dirk Meister, Zoheb Shivani, Ronald Karr
  • Publication number: 20210303519
    Abstract: An illustrative system is configured to optimize a transfer of a file system from a source storage system to a target storage system. For example, the system, in association with the transfer, determines that a copy of a collection of blocks containing data of block objects of the file system is already stored at the target storage system. In certain examples, an identifier referencing the collection of blocks is shared by the source and target storage systems and is used to determine that the copy of the collection of blocks containing data of block objects of the file system is already stored at the target storage system. The system uses the copy of the collection of blocks already stored at the target storage system instead of transferring the collection of blocks from the source storage system to the target storage system as part of the transfer.
    Type: Application
    Filed: April 27, 2021
    Publication date: September 30, 2021
    Inventors: Subramaniam Periyagaram, Dirk Meister, Ronald Karr, Zoheb Shivani, Alexei Potashnik, Chu Zhang, Tejal Joshi Chakeres
  • Patent number: 11068162
    Abstract: Storage management within a cloud-based data store, including: receiving one or more data objects for storage; selecting, based at least upon a storage policy and upon one or more characteristics of storage data, one or more storage classes from among a plurality of storage classes of one or more data storage services; and storing the one or more data objects to the selected one or more storage classes of the one or more data storage services.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: July 20, 2021
    Assignee: Pure Storage, Inc.
    Inventors: Dirk Meister, Subramaniam Periyagaram, Reese Robertson, Prudhvi Lokireddy
  • Publication number: 20210019053
    Abstract: A first plurality of block identifiers is sorted based, at least in part, on a measure of spatial locality. A second plurality of block identifiers is sorted based, at least in part, on the measure of spatial locality. At least the first plurality of block identifiers and the second plurality of block identifiers are incrementally merged into a third plurality of block identifiers based, at least in part, on the measure of spatial locality. A block of data corresponding to metadata associated with a plurality of block identifiers of the third plurality of block identifiers is updated.
    Type: Application
    Filed: October 6, 2020
    Publication date: January 21, 2021
    Applicant: NETAPP, INC.
    Inventors: Jayalakshmi Pattabiraman, Nikhil Mattankot, Deekshith Belchapada, Blake H. Lewis, Subramaniam Periyagaram, Satya Suresh Chouta Naga Veera, Rohit Singh, Rajesh Khandelwal, James Robert Morefield
  • Patent number: 10838642
    Abstract: A first plurality of block identifiers is sorted based, at least in part, on a measure of spatial locality. A second plurality of block identifiers is sorted based, at least in part, on the measure of spatial locality. At least the first plurality of block identifiers and the second plurality of block identifiers are incrementally merged into a third plurality of block identifiers based, at least in part, on the measure of spatial locality. A block of data corresponding to metadata associated with a plurality of block identifiers of the third plurality of block identifiers is updated.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: November 17, 2020
    Assignee: NETAPP, INC.
    Inventors: Jayalakshmi Pattabiraman, Nikhil Mattankot, Deekshith Belchapada, Blake H. Lewis, Subramaniam Periyagaram, Satya Suresh Chouta Naga Veera, Rohit Singh, Rajesh Khandelwal, James Robert Morefield
  • Patent number: 10613791
    Abstract: Protecting data stored on a storage system through the use of different storage levels, including: creating a snapshot of a dataset stored on a storage system, wherein the snapshot includes user data and metadata, and wherein the metadata describes the storage layout of the dataset, offloading the snapshot to a first storage level storage system, and migrating, in accordance with a lifecycle policy, the snapshot from the first storage level storage system onto a second storage level storage system.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: April 7, 2020
    Assignee: Pure Storage, Inc.
    Inventors: Dirk Meister, Omer Asad, Yisha Zhao, Subramaniam Periyagaram, Dilip Kumar Uppugandla
  • Publication number: 20190220195
    Abstract: A first plurality of block identifiers is sorted based, at least in part, on a measure of spatial locality. A second plurality of block identifiers is sorted based, at least in part, on the measure of spatial locality. At least the first plurality of block identifiers and the second plurality of block identifiers are incrementally merged into a third plurality of block identifiers based, at least in part, on the measure of spatial locality. A block of data corresponding to metadata associated with a plurality of block identifiers of the third plurality of block identifiers is updated.
    Type: Application
    Filed: March 20, 2019
    Publication date: July 18, 2019
    Applicant: NETAPP, INC.
    Inventors: Jayalakshmi Pattabiraman, Nikhil Mattankot, Deekshith Belchapada, Blake H. Lewis, Subramaniam Periyagaram, Satya Suresh Chouta Naga Veera, Rohit Singh, Rajesh Khandelwal, James Robert Morefield
  • Patent number: 10268410
    Abstract: A first plurality of block identifiers is sorted based, at least in part, on a measure of spatial locality. A second plurality of block identifiers is sorted based, at least in part, on the measure of spatial locality. At least the first plurality of block identifiers and the second plurality of block identifiers are incrementally merged into a third plurality of block identifiers based, at least in part, on the measure of spatial locality. A block of data corresponding to metadata associated with a plurality of block identifiers of the third plurality of block identifiers is updated.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: April 23, 2019
    Assignee: NETAPP, INC.
    Inventors: Jayalakshmi Pattabiraman, Nikhil Mattankot, Deekshith Belchapada, Blake H. Lewis, Subramaniam Periyagaram, Satya Suresh Chouta Naga Veera, Rohit Singh, Rajesh Khandelwal, James Robert Morefield
  • Publication number: 20180356989
    Abstract: Protecting data stored on a storage system through the use of different storage levels, including: creating a snapshot of a dataset stored on a storage system, wherein the snapshot includes user data and metadata, and wherein the metadata describes the storage layout of the dataset, offloading the snapshot to a first storage level storage system, and migrating, in accordance with a lifecycle policy, the snapshot from the first storage level storage system onto a second storage level storage system.
    Type: Application
    Filed: June 11, 2018
    Publication date: December 13, 2018
    Inventors: DIRK MEISTER, OMER ASAD, YISHA ZHAO, SUBRAMANIAM PERIYAGARAM, DILIP KUMAR UPPUGANDLA
  • Patent number: 9952797
    Abstract: Presented herein are mass data storage networks, file system protocols, non-transitory machine readable devices, and methods for storing data blocks in mass data storage systems. Methods for storing data blocks in a file system are disclosed which include: receiving by storage controller of the data storage system a request to write a data file to a system storage module; determining whether the data file includes a sub-K data chunk that is less than approximately four kilobytes; identifying a packed block that stores a plurality of sub-K data chunks and has sufficient storage space available to store the sub-K data chunk; and placing, by the storage controller in the packed block, the sub-K data chunk and a corresponding data length and a respective offset identifying a location of the sub-K data chunk in the packed block.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: April 24, 2018
    Assignee: NETAPP, INC.
    Inventors: Manish Katiyar, Anathan Subramanian, Subramaniam Periyagaram
  • Publication number: 20170371943
    Abstract: A system and method for data replication is described. A destination storage system receives a message from a source storage system as part of a replication process. The message includes an identity of a first file, information about where the first file is stored in the source storage system, a name of a first data being used by the first file and stored at a first location of the source storage system, and a fingerprint of the first data. The destination storage system determines that a mapping database is unavailable or inaccurate, and accesses a fingerprint database using the fingerprint of the first data received with the message to determine whether data stored in the destination storage system has a fingerprint identical to the fingerprint of the first data.
    Type: Application
    Filed: September 8, 2017
    Publication date: December 28, 2017
    Inventors: Richard P. Jernigan, IV, Jonathan A. Curley, Subramaniam Periyagaram
  • Patent number: 9779153
    Abstract: A system and method for data replication is described. A destination storage system receives a message from a source storage system as part of a replication process. The message includes an identity of a first file, information about where the first file is stored in the source storage system, a name of a first data being used by the first file and stored at a first location of the source storage system, and a fingerprint of the first data. The destination storage system determines that a mapping database is unavailable or inaccurate, and accesses a fingerprint database using the fingerprint of the first data received with the message to determine whether data stored in the destination storage system has a fingerprint identical to the fingerprint of the first data.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: October 3, 2017
    Assignee: NETAPP, INC.
    Inventors: Richard P. Jernigan, IV, Jonathan A. Curley, Subramaniam Periyagaram
  • Patent number: 9715348
    Abstract: Presented herein are mass data storage systems, file system protocols, non-transitory machine readable devices, and methods for storing data blocks in data file systems. Methods for compressing snapshot data in a data file system are disclosed which include: loading a snapshot file with one or more data blocks, the snapshot representing a state of the data file system at a point in time; determining if at least one of the snapshot data blocks is less than a predetermined byte value; responsive to a snapshot data block having a size that is less than the predetermined byte value, identifying a packed block configured to store data chunks from plural distinct snapshots and having available sufficient storage space to store the snapshot data block; and adding to the packed block the snapshot data block and lost-write context information corresponding to the snapshot data block.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: July 25, 2017
    Assignee: NETAPP, INC.
    Inventors: Subramaniam Periyagaram, Ananthan Subramanian, Manish Katiyar
  • Publication number: 20170068472
    Abstract: Presented herein are mass data storage systems, file system protocols, non-transitory machine readable devices, and methods for storing data blocks in data file systems. Methods for compressing snapshot data in a data file system are disclosed which include: loading a snapshot file with one or more data blocks, the snapshot representing a state of the data file system at a point in time; determining if at least one of the snapshot data blocks is less than a predetermined byte value; responsive to a snapshot data block having a size that is less than the predetermined byte value, identifying a packed block configured to store data chunks from plural distinct snapshots and having available sufficient storage space to store the snapshot data block; and adding to the packed block the snapshot data block and lost-write context information corresponding to the snapshot data block.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 9, 2017
    Inventors: Subramaniam Periyagaram, Ananthan Subramanian, Manish Katiyar