Patents by Inventor Anil Paul Thoppil
Anil Paul Thoppil 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).
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Publication number: 20200073567Abstract: Techniques are provided for multi-tier write allocation. A storage system may store data within a multi-tier storage environment comprising a first storage tier (e.g., storage devices maintained by the storage system), a second storage tier (e.g., a remote object store provided by a third party storage provider), and/or other storage tiers. A determination is made that data (e.g., data of a write request received by the storage system) is to be stored within the second storage tier. The data is stored into a staging area of the first storage tier. A second storage tier location identifier, for referencing the data according to a format utilized by the second storage tier, is assigned to the data and provided to a file system hosting the data. The data is then destaged from the staging area into the second storage tier, such as within an object stored within the remote object store.Type: ApplicationFiled: November 11, 2019Publication date: March 5, 2020Inventors: Ganga Bhavani Kondapalli, Kevin Daniel Varghese, Ananthan Subramanian, Cheryl Thompson, Anil Paul Thoppil
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Patent number: 10552389Abstract: Techniques are provided for orphan object detection, invalid sequence number detection, and asynchronous object cleanup. A storage system may store data within one or more tiers of storage, such as a storage tier (e.g., solid state storage and disks maintained by the storage system), a remote object store (e.g., storage provided by a third party storage provider), and/or other storage tiers. Orphan objects, within the remote object store, that are no longer used by the storage system may be detected and/or deleted. When an aggregate of volumes is deleted, corresponding objects, within the remote object store, may be identified and/or deleted. Invalid sequence numbers (e.g., lost or corrupt sequence numbers locally maintained in a metafile) assigned to objects within the remote object store may be identified, deleted, and/or fixed.Type: GrantFiled: April 28, 2017Date of Patent: February 4, 2020Assignee: Oath Inc.Inventors: Ananthan Subramanian, Sridevi Jantli, Anil Paul Thoppil, Cheryl Marie Thompson, Qinghua Zheng
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Patent number: 10489073Abstract: Techniques are provided for multi-tier write allocation. A storage system may store data within a multi-tier storage environment comprising a first storage tier (e.g., storage devices maintained by the storage system), a second storage tier (e.g., a remote object store provided by a third party storage provider), and/or other storage tiers. A determination is made that data (e.g., data of a write request received by the storage system) is to be stored within the second storage tier. The data is stored into a staging area of the first storage tier. A second storage tier location identifier, for referencing the data according to a format utilized by the second storage tier, is assigned to the data and provided to a file system hosting the data. The data is then destaged from the staging area into the second storage tier, such as within an object stored within the remote object store.Type: GrantFiled: April 28, 2017Date of Patent: November 26, 2019Assignee: NetApp Inc.Inventors: Ganga Bhavani Kondapalli, Kevin Daniel Varghese, Ananthan Subramanian, Cheryl Marie Thompson, Anil Paul Thoppil
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Publication number: 20190324844Abstract: Techniques are provided for remote object store error handling. A storage system may store data within one or more tiers of storage, such as a local storage tier (e.g., solid state storage and disks maintained by the storage system), a remote object store (e.g., storage provided by a third party storage provider), and/or other storage tiers. Because the remote object store may not provide the same data consistency and guarantees that the storage system provides for clients such as through the local storage tier, additional validation is provided by the storage system for the remote object store. For example, when data is put into an object of the remote object store, a verification get operation is performed to read and validate information within a header of the object. Other verifications and checks are performed such as using a locally stored metafile to detect corrupt or lost metadata and/or objects.Type: ApplicationFiled: July 2, 2019Publication date: October 24, 2019Inventors: Ananthan Subramanian, Ganga Bhavani Kondapalli, Cheryl Marie Thompson, Kevin Daniel Varghese, Anil Paul Thoppil, Qinghua Zheng
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Patent number: 10360099Abstract: Techniques are provided for remote object store error handling. A storage system may store data within one or more tiers of storage, such as a local storage tier (e.g., solid state storage and disks maintained by the storage system), a remote object store (e.g., storage provided by a third party storage provider), and/or other storage tiers. Because the remote object store may not provide the same data consistency and guarantees that the storage system provides for clients such as through the local storage tier, additional validation is provided by the storage system for the remote object store. For example, when data is put into an object of the remote object store, a verification get operation is performed to read and validate information within a header of the object. Other verifications and checks are performed such as using a locally stored metafile to detect corrupt or lost metadata and/or objects.Type: GrantFiled: April 28, 2017Date of Patent: July 23, 2019Assignee: NetApp Inc.Inventors: Ananthan Subramanian, Ganga Bhavani Kondapalli, Cheryl Marie Thompson, Kevin Daniel Varghese, Anil Paul Thoppil, Qinghua Zheng
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Publication number: 20180314719Abstract: Techniques are provided for orphan object detection, invalid sequence number detection, and asynchronous object cleanup. A storage system may store data within one or more tiers of storage, such as a storage tier (e.g., solid state storage and disks maintained by the storage system), a remote object store (e.g., storage provided by a third party storage provider), and/or other storage tiers. Orphan objects, within the remote object store, that are no longer used by the storage system may be detected and/or deleted. When an aggregate of volumes is deleted, corresponding objects, within the remote object store, may be identified and/or deleted. Invalid sequence numbers (e.g., lost or corrupt sequence numbers locally maintained in a metafile) assigned to objects within the remote object store may be identified, deleted, and/or fixed.Type: ApplicationFiled: April 28, 2017Publication date: November 1, 2018Inventors: Ananthan Subramanian, Sridevi Jantli, Anil Paul Thoppil, Cheryl Marie Thompson, Qinghua Zheng
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Publication number: 20180314725Abstract: Techniques are provided for remote object store error handling. A storage system may store data within one or more tiers of storage, such as a local storage tier (e.g., solid state storage and disks maintained by the storage system), a remote object store (e.g., storage provided by a third party storage provider), and/or other storage tiers. Because the remote object store may not provide the same data consistency and guarantees that the storage system provides for clients such as through the local storage tier, additional validation is provided by the storage system for the remote object store. For example, when data is put into an object of the remote object store, a verification get operation is performed to read and validate information within a header of the object. Other verifications and checks are performed such as using a locally stored metafile to detect corrupt or lost metadata and/or objects.Type: ApplicationFiled: April 28, 2017Publication date: November 1, 2018Inventors: Ananthan Subramanian, Ganga Bhavani Kondapalli, Cheryl Marie Thompson, Kevin Daniel Varghese, Anil Paul Thoppil, Qinghua Zheng
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Publication number: 20180314449Abstract: Techniques are provided for multi-tier write allocation. A storage system may store data within a multi-tier storage environment comprising a first storage tier (e.g., storage devices maintained by the storage system), a second storage tier (e.g., a remote object store provided by a third party storage provider), and/or other storage tiers. A determination is made that data (e.g., data of a write request received by the storage system) is to be stored within the second storage tier. The data is stored into a staging area of the first storage tier. A second storage tier location identifier, for referencing the data according to a format utilized by the second storage tier, is assigned to the data and provided to a file system hosting the data. The data is then destaged from the staging area into the second storage tier, such as within an object stored within the remote object store.Type: ApplicationFiled: April 28, 2017Publication date: November 1, 2018Inventors: Ganga Bhavani Kondapalli, Kevin Daniel Varghese, Ananthan Subramanian, Cheryl Marie Thompson, Anil Paul Thoppil
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Patent number: 9798496Abstract: Methods and systems for a networked system are provided. One method includes generating an object by a processor for storing a plurality of data chunks at a storage device, where the object includes a header segment and a data segment, the header segment providing a first offset address where an uncompressed data chunk is stored within the object and a second offset address of the object indicating a beginning of a compressed group having compressed data chunks and providing an indicator of a compression group size; reading the header segment by the processor to retrieve the second offset and the compressed group size in response to a first request for a data chunk within the compressed group; and decompressing the data chunk of the compressed group by the processor and providing the uncompressed data chunk for completing the first read request.Type: GrantFiled: January 13, 2016Date of Patent: October 24, 2017Assignee: NETAPP, INC.Inventors: Kevin Daniel Varghese, Anil Paul Thoppil
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Patent number: 9792043Abstract: Methods and systems for a networked storage environment are provided. One method includes scanning a first data structure by a processor executing instructions out of a memory for a storage operating system to determine whether any data chunk of a first object stored at a first storage tier is referenced by the storage operating; when the storage operating system references a certain number of data chunks, the processor using an object staging data structure to identify a second object that is in the process of being built with space for transferring the certain number of data chunks from the first object to the second object; and updating information regarding the second object at a transfer log with location information of the certain number of data chunks at the first storage tier.Type: GrantFiled: January 13, 2016Date of Patent: October 17, 2017Assignee: NETAPP, INC.Inventors: Ananthan Subramanian, Anil Paul Thoppil, Sunitha Sunil Sankar, Cheryl Marie Thompson
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Publication number: 20170199707Abstract: Methods and systems for a networked system are provided. One method includes generating an object by a processor for storing a plurality of data chunks at a storage device, where the object includes a header segment and a data segment, the header segment providing a first offset address where an uncompressed data chunk is stored within the object and a second offset address of the object indicating a beginning of a compressed group having compressed data chunks and providing an indicator of a compression group size; reading the header segment by the processor to retrieve the second offset and the compressed group size in response to a first request for a data chunk within the compressed group; and decompressing the data chunk of the compressed group by the processor and providing the uncompressed data chunk for completing the first read request.Type: ApplicationFiled: January 13, 2016Publication date: July 13, 2017Applicant: NETAPP, INC.Inventors: Kevin Daniel Varghese, Anil Paul Thoppil
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Publication number: 20170199675Abstract: Methods and systems for a networked storage environment are provided. One method includes scanning a first data structure by a processor executing instructions out of a memory for a storage operating system to determine whether any data chunk of a first object stored at a first storage tier is referenced by the storage operating; when the storage operating system references a certain number of data chunks, the processor using an object staging data structure to identify a second object that is in the process of being built with space for transferring the certain number of data chunks from the first object to the second object; and updating information regarding the second object at a transfer log with location information of the certain number of data chunks at the first storage tier.Type: ApplicationFiled: January 13, 2016Publication date: July 13, 2017Applicant: NETAPP, INC.Inventors: Ananthan Subramanian, Anil Paul Thoppil, Sunitha Sunil Sankar, Cheryl Marie Thompson