Patents by Inventor Qinghua Zheng
Qinghua Zheng 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: 20220147418Abstract: 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: January 24, 2022Publication date: May 12, 2022Inventors: Ananthan Subramanian, Ganga Bhavani Kondapalli, Cheryl Marie Thompson, Kevin Daniel Varghese, Anil Paul Thoppil, Qinghua Zheng
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Publication number: 20220083535Abstract: Techniques are provided for storage tier verification checks. A determination is made that a mount operation of an aggregate of a set of volumes stored within a multi-tier storage environment has completed. A first metafile and a second metafile are maintained to track information related to the storage of objects of a volume of the aggregate within a remote object store that is a tier of the multi-tier storage environment. A distributed verification is performed between the first metafile and the second metafile to identify an inconsistency. Accordingly, the first metafile and the second metafile are reconciled to address the inconsistency so that storage information within the first metafile and the second metafile are consistent.Type: ApplicationFiled: November 29, 2021Publication date: March 17, 2022Inventors: Kayuri Hasmukh Patel, Qinghua Zheng, Sumith Makam, Kevin Daniel Varghese, Yuvraj Ajaykumar Patel, Sateesh Kumar Pola, Sharmi Suresh Kumar Nair, Mihir Gorecha
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Patent number: 11231989Abstract: 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: November 22, 2020Date of Patent: January 25, 2022Assignee: NetApp, Inc.Inventors: Ananthan Subramanian, Ganga Bhavani Kondapalli, Cheryl Marie Thompson, Kevin Daniel Varghese, Anil Paul Thoppil, Qinghua Zheng
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Patent number: 11210013Abstract: Techniques are provided for object store mirroring. Data within a storage tier of a node may be determined as being data to tier out to a primary object store based upon a property of the data. A first object is generated to comprise the data. A second object is generated to comprise the data. The first object is transmitted to the primary data store for storage in parallel with the second object being transmitted to a mirror object store for storage. Tiering of the data is designated as successful once acknowledgements are received from both the primary object that the first object was stored and the mirror object store that the second object was stored.Type: GrantFiled: April 19, 2019Date of Patent: December 28, 2021Assignee: NetApp, Inc.Inventors: Anil Paul Thoppil, Cheryl Marie Thompson, Qinghua Zheng, Jeevan Hunsur Eswara, Nicholas Gerald Zehender, Ronak Girishbhai Ghadiya, Sridevi Jantli
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Patent number: 11188520Abstract: Techniques are provided for storage tier verification checks. A determination is made that a mount operation of an aggregate of a set of volumes stored within a multi-tier storage environment has completed. A first metafile and a second metafile are maintained to track information related to the storage of objects of a volume of the aggregate within a remote object store that is a tier of the multi-tier storage environment. A distributed verification is performed between the first metafile and the second metafile to identify an inconsistency. Accordingly, the first metafile and the second metafile are reconciled to address the inconsistency so that storage information within the first metafile and the second metafile are consistent.Type: GrantFiled: March 2, 2020Date of Patent: November 30, 2021Assignee: NetApp Inc.Inventors: Kayuri Hasmukh Patel, Qinghua Zheng, Sumith Makam, Kevin Daniel Varghese, Yuvraj Ajaykumar Patel, Sateesh Kumar Pola, Sharmi Suresh Kumar Nair, Mihir Gorecha
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Publication number: 20210303167Abstract: Techniques are provided for object store mirroring. Data within a storage tier of a node may be determined as being data to tier out to a primary object store based upon a property of the data. A first object is generated to comprise the data. A second object is generated to comprise the data. The first object is transmitted to the primary data store for storage in parallel with the second object being transmitted to a mirror object store for storage. Tiering of the data is designated as successful once acknowledgements are received from both the primary object that the first object was stored and the mirror object store that the second object was stored.Type: ApplicationFiled: June 14, 2021Publication date: September 30, 2021Inventors: Anil Paul Thoppil, Cheryl Marie Thompson, Qinghua Zheng, Jeevan Hunsur Eswara, Nicholas Gerald Zehender, Ronak Girishbhai Ghadiya, Sridevi Jantli
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Publication number: 20210303166Abstract: Techniques are provided for object store mirroring. Data within a storage tier of a node may be determined as being data to tier out to a primary object store based upon a property of the data. A first object is generated to comprise the data. A second object is generated to comprise the data. The first object is transmitted to the primary data store for storage in parallel with the second object being transmitted to a mirror object store for storage. Tiering of the data is designated as successful once acknowledgements are received from both the primary object that the first object was stored and the mirror object store that the second object was stored.Type: ApplicationFiled: June 10, 2021Publication date: September 30, 2021Inventors: Anil Paul Thoppil, Cheryl Marie Thompson, Qinghua Zheng, Jeevan Hunsur Eswara, Nicholas Gerald Zehender, Ronak Girishbhai Ghadiya, Sridevi Jantli
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Patent number: 11048430Abstract: Techniques are provided for object store mirroring. Data within a storage tier of a node may be determined as being data to tier out to a primary object store based upon a property of the data. A first object is generated to comprise the data. A second object is generated to comprise the data. The first object is transmitted to the primary data store for storage in parallel with the second object being transmitted to a mirror object store for storage. Tiering of the data is designated as successful once acknowledgements are received from both the primary object that the first object was stored and the mirror object store that the second object was stored.Type: GrantFiled: April 12, 2019Date of Patent: June 29, 2021Assignee: NetApp, Inc.Inventors: Anil Paul Thoppil, Cheryl Marie Thompson, Qinghua Zheng, Jeevan Hunsur Eswara, Nicholas Gerald Zehender, Ronak Girishbhai Ghadiya, Sridevi Jantli
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Patent number: 11036420Abstract: Techniques are provided for object store mirroring. Data within a storage tier of a node may be determined as being data to tier out to a primary object store based upon a property of the data. A first object is generated to comprise the data. A second object is generated to comprise the data. The first object is transmitted to the primary data store for storage in parallel with the second object being transmitted to a mirror object store for storage. Tiering of the data is designated as successful once acknowledgements are received from both the primary object that the first object was stored and the mirror object store that the second object was stored.Type: GrantFiled: April 19, 2019Date of Patent: June 15, 2021Assignee: NetApp, Inc.Inventors: Anil Paul Thoppil, Cheryl Marie Thompson, Qinghua Zheng, Jeevan Hunsur Eswara, Nicholas Gerald Zehender, Ronak Girishbhai Ghadiya, Sridevi Jantli
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Publication number: 20210089387Abstract: 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: November 22, 2020Publication date: March 25, 2021Inventors: Ananthan Subramanian, Ganga Bhavani Kondapalli, Cheryl Marie Thompson, Kevin Daniel Varghese, Anil Paul Thoppil, Qinghua Zheng
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Patent number: 10853166Abstract: 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: July 2, 2019Date of Patent: December 1, 2020Assignee: 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: 20200326858Abstract: Techniques are provided for object store mirroring. Data within a storage tier of a node may be determined as being data to tier out to a primary object store based upon a property of the data. A first object is generated to comprise the data. A second object is generated to comprise the data. The first object is transmitted to the primary data store for storage in parallel with the second object being transmitted to a mirror object store for storage. Tiering of the data is designated as successful once acknowledgements are received from both the primary object that the first object was stored and the mirror object store that the second object was stored.Type: ApplicationFiled: April 12, 2019Publication date: October 15, 2020Inventors: Anil Paul Thoppil, Cheryl Marie Thompson, Qinghua Zheng, Jeevan Hunsur Eswara, Nicholas Gerald Zehender, Ronak Girishbhai Ghadiya, Sridevi Jantli
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Publication number: 20200327141Abstract: Techniques are provided for object store mirroring. Data within a storage tier of a node may be determined as being data to tier out to a primary object store based upon a property of the data. A first object is generated to comprise the data. A second object is generated to comprise the data. The first object is transmitted to the primary data store for storage in parallel with the second object being transmitted to a mirror object store for storage. Tiering of the data is designated as successful once acknowledgements are received from both the primary object that the first object was stored and the mirror object store that the second object was stored.Type: ApplicationFiled: April 19, 2019Publication date: October 15, 2020Inventors: Anil Paul Thoppil, Cheryl Marie Thompson, Qinghua Zheng, Jeevan Hunsur Eswara, Nicholas Gerald Zehender, Ronak Girishbhai Ghadiya, Sridevi Jantli
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Publication number: 20200326873Abstract: Techniques are provided for object store mirroring. Data within a storage tier of a node may be determined as being data to tier out to a primary object store based upon a property of the data. A first object is generated to comprise the data. A second object is generated to comprise the data. The first object is transmitted to the primary data store for storage in parallel with the second object being transmitted to a mirror object store for storage. Tiering of the data is designated as successful once acknowledgements are received from both the primary object that the first object was stored and the mirror object store that the second object was stored.Type: ApplicationFiled: April 19, 2019Publication date: October 15, 2020Inventors: Anil Paul Thoppil, Cheryl Marie Thompson, Qinghua Zheng, Jeevan Hunsur Eswara, Nicholas Gerald Zehender, Ronak Girishbhai Ghadiya, Sridevi Jantli
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Publication number: 20200265008Abstract: A copy-free transition tool converts storage objects from a source format associated with a source storage system to a destination format associated with a destination storage system. The transition tool exports configuration information associated with the source storage system to the destination storage system and brings the storage objects offline. Once the transition tool determines that the storage devices containing the storage objects are physically connected to the destination storage system, the tool can convert file systems from the source format to the destination format while leaving data and file layout unchanged. The tool can also modify metadata associated with each of the storage objects to conform to the destination format and store the modified metadata with the destination storage system.Type: ApplicationFiled: May 7, 2020Publication date: August 20, 2020Inventors: Vani Vully, Anil Thoppil, James Leong, Vitaly Revsin, Qinghua Zheng, Srishylam Simharajan
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Patent number: 10703603Abstract: A transport system may include at least two conveyor sections and at least three cars that are moved individually in a cyclical operation. Each car may pass through a first conveyor section starting from a first start position and subsequently pass through a second conveyor section back to the first start position. At least one stopping point may be provided at least along a conveyor section, and one or more subsequent stopping points may respectively be assigned to a block. Travel of the cars may be controlled such that the cars successively approach a respective previously-specified block, and an equal cycle time is predefined for every car to pass through the first and second conveyor sections. A method for operating a transport system in this manner is also disclosed.Type: GrantFiled: October 9, 2015Date of Patent: July 7, 2020Assignee: THYSSENKRUPP ELEVATOR AGInventors: Qinghua Zheng, Florian Dignath, Erhard Lampersberger, Thomas Beck
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Publication number: 20200201842Abstract: Techniques are provided for storage tier verification checks. A determination is made that a mount operation of an aggregate of a set of volumes stored within a multi-tier storage environment has completed. A first metafile and a second metafile are maintained to track information related to the storage of objects of a volume of the aggregate within a remote object store that is a tier of the multi-tier storage environment. A distributed verification is performed between the first metafile and the second metafile to identify an inconsistency. Accordingly, the first metafile and the second metafile are reconciled to address the inconsistency so that storage information within the first metafile and the second metafile are consistent.Type: ApplicationFiled: March 2, 2020Publication date: June 25, 2020Inventors: Kayuri Hasmukh Patel, Qinghua Zheng, Sumith Makam, Kevin Daniel Varghese, Yuvraj Ajaykumar Patel, Sateesh Kumar Pola, Sharmi Suresh Kumar Nair, Mihir Gorecha
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Patent number: 10684985Abstract: A copy-free transition tool converts storage objects from a source format associated with a source storage system to a destination format associated with a destination storage system. The transition tool exports configuration information associated with the source storage system to the destination storage system and brings the storage objects offline. Once the transition tool determines that the storage devices containing the storage objects are physically connected to the destination storage system, the tool can convert file systems from the source format to the destination format while leaving data and file layout unchanged. The tool can also modify metadata associated with each of the storage objects to conform to the destination format and store the modified metadata with the destination storage system.Type: GrantFiled: February 16, 2016Date of Patent: June 16, 2020Assignee: NetApp Inc.Inventors: Vani Vully, Anil Thoppil, James Leong, Vitaly Revsin, Qinghua Zheng, Srishylam Simharajan
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Publication number: 20200159705Abstract: 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: January 24, 2020Publication date: May 21, 2020Inventors: Ananthan Subramanian, Sridevi Jantli, Anil Paul Thoppil, Cheryl Marie Thompson, Qinghua Zheng
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Patent number: 10621162Abstract: Techniques are provided for storage tier verification checks. A determination is made that a mount operation of an aggregate of a set of volumes stored within a multi-tier storage environment has completed. A first metafile and a second metafile are maintained to track information related to the storage of objects of a volume of the aggregate within a remote object store that is a tier of the multi-tier storage environment. A distributed verification is performed between the first metafile and the second metafile to identify an inconsistency. Accordingly, the first metafile and the second metafile are reconciled to address the inconsistency so that storage information within the first metafile and the second metafile are consistent.Type: GrantFiled: June 16, 2017Date of Patent: April 14, 2020Assignee: NetApp Inc.Inventors: Kayuri Hasmukh Patel, Qinghua Zheng, Sumith Makam, Kevin Daniel Varghese, Yuvraj Ajaykumar Patel, Sateesh Kumar Pola, Sharmi Suresh Kumar Nair, Mihir Gorecha