Patents by Inventor Rajesh Khandelwal
Rajesh Khandelwal 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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Patent number: 11962842Abstract: Customers at a premises attempting to connect a new wireless device, such as a mobile phone or tablet to an available wireless network (Wi-Fi), receive network login information such as an Wi-Fi SSID (service set identification) and Password through a system generated equivalent QR code that can then be scanned to automatically connect to the Wi-Fi network. The system receives a request for Wi-Fi settings at a premises, identifies customer equipment associated with the premises, identifies an Wi-Fi SSID (Service Set Identification) and password associated with the customer equipment, generates a QR (Quick Response) code representing the Wi-Fi SSID and password, sends the QR code to one or more devices associated with the premises for display and subsequent scanning at the premises.Type: GrantFiled: December 30, 2020Date of Patent: April 16, 2024Assignee: CSC Holdings, LLCInventors: Maheshwar Singh, Rajesh Khandelwal, Shashank Somal
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Publication number: 20240061603Abstract: Methods and systems for co-locating journaling and data storage are provided. Separate journal and volume partitions may be maintained within each logical storage unit (e.g., Logical Unit Number (LUN)) of a distributed storage system. Journaling of metadata associated with write requests received from one or more clients may be distributed by identifying a destination logical storage unit to which data associated with a given write request is to be stored and causing the data and metadata to be persisted to disk by journaling the metadata and the data to respective portions of an active log within the journal partition of the destination logical storage unit. By using the same logical storage unit for both journaling of write requests and writing the data associated with such write requests, the bottleneck due to there being only a single device or storage unit handling all metadata for all write requests can be avoided.Type: ApplicationFiled: October 30, 2023Publication date: February 22, 2024Applicant: NetApp, Inc.Inventors: Kevin Daniel Varghese, Ananthan Subramanian, Parag Sarfare, Sandeep Yadav, Suhas Urkude, Rajesh Khandelwal
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Patent number: 11863375Abstract: Systems, methods, and apparatuses can detect whether an impairment is present within a service provider network. The impairment can cause a service provided by the service provider network to not perform as expected. These systems, methods, and apparatuses can develop multiple network records to record the performance of the service provider network at various instances in time. These systems, methods, and apparatuses can compare these network records among each other to detect for the presence of the impairment within the service provider network. These systems, methods, and apparatuses can thereafter diagnose and/or remedy the impairment when present within the service provider network.Type: GrantFiled: June 13, 2022Date of Patent: January 2, 2024Assignee: CSC Holdings, LLCInventors: Rajesh Khandelwal, Shashank Somal
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Patent number: 11803315Abstract: A method and system for co-locating journaling and data storage based on write requests. A write request that includes metadata and data is received from a client. A logical storage unit for storing the metadata and the data is identified. The logical storage unit is divided into a journal partition and a volume partition. The journal partition includes a first log and a second log. Which of the first log and the second log is an active log and which of the first log and the second log is an inactive log are identified. The metadata is recorded in a first location in the active log and the data is recorded in a second location in the active log during a single I/O operation. A reply is sent to the client after the metadata and the data are recorded in the journal partition.Type: GrantFiled: June 24, 2022Date of Patent: October 31, 2023Assignee: NetApp, Inc.Inventors: Kevin Daniel Varghese, Ananthan Subramanian, Parag Sarfare, Sandeep Yadav, Suhas Urkude, Rajesh Khandelwal
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Patent number: 11803316Abstract: A method and system for co-locating journaling and data storage based on write requests. A write request that includes metadata and data is received from a client. A logical storage unit for storing the metadata and the data is identified. The logical storage unit is divided into a journal partition and a volume partition. The journal partition includes a first log and a second log. Which of the first log and the second log is an active log and which of the first log and the second log is an inactive log are identified. The metadata is recorded in a first location in the active log and the data is recorded in a second location in the active log during a single I/O operation. A reply is sent to the client after the metadata and the data are recorded in the journal partition.Type: GrantFiled: July 19, 2022Date of Patent: October 31, 2023Assignee: NetApp, Inc.Inventors: Kevin Daniel Varghese, Ananthan Subramanian, Parag Sarfare, Sandeep Yadav, Suhas Urkude, Rajesh Khandelwal
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Patent number: 11757734Abstract: Systems, methods, and apparatuses disclosed herein can evaluate collections of operational information received from one or more subscriber devices to determine one or more Quality of Experience (QoE) scores for the one or more subscriber devices and/or one or more subscriber premises that are associated with the one or more subscriber devices. Generally, the one or more QoE scores can represent one or more numerically quantitative measures relating to the facilitation of a service by a service provider system. In some embodiments, the one or more QoE scores can represent one or more numerically quantitative measures relating to the experience of one or more subscribers that are associated with the one or more subscriber devices. In these embodiments, the one or more QoE scores can represent numerically quantitative measures of the subjective experience, for example, satisfaction or unsatisfaction, of the one or more subscribers with the service.Type: GrantFiled: February 12, 2021Date of Patent: September 12, 2023Assignee: CSC Holdings, LLCInventors: Shashank Somal, Rajesh Khandelwal
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Publication number: 20220357868Abstract: A method and system for co-locating journaling and data storage based on write requests. A write request that includes metadata and data is received from a client. A logical storage unit for storing the metadata and the data is identified. The logical storage unit is divided into a journal partition and a volume partition. The journal partition includes a first log and a second log. Which of the first log and the second log is an active log and which of the first log and the second log is an inactive log are identified. The metadata is recorded in a first location in the active log and the data is recorded in a second location in the active log during a single I/O operation. A reply is sent to the client after the metadata and the data are recorded in the journal partition.Type: ApplicationFiled: July 19, 2022Publication date: November 10, 2022Inventors: Kevin Daniel Varghese, Ananthan Subramanian, Parag Sarfare, Sandeep Yadav, Suhas Urkude, Rajesh Khandelwal
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Publication number: 20220342577Abstract: A method and system for co-locating journaling and data storage based on write requests. A write request that includes metadata and data is received from a client. A logical storage unit for storing the metadata and the data is identified. The logical storage unit is divided into a journal partition and a volume partition. The journal partition includes a first log and a second log. Which of the first log and the second log is an active log and which of the first log and the second log is an inactive log are identified. The metadata is recorded in a first location in the active log and the data is recorded in a second location in the active log during a single I/O operation. A reply is sent to the client after the metadata and the data are recorded in the journal partition.Type: ApplicationFiled: June 24, 2022Publication date: October 27, 2022Inventors: Kevin Daniel Varghese, Ananthan Subramanian, Parag Sarfare, Sandeep Yadav, Suhas Urkude, Rajesh Khandelwal
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Patent number: 11409457Abstract: A method and system for co-locating journaling and data storage based on write requests. A write request that includes metadata and data is received from a client. A logical storage unit for storing the metadata and the data is identified. The logical storage unit is divided into a journal partition and a volume partition. The journal partition includes a first log and a second log. Which of the first log and the second log is an active log and which of the first log and the second log is an inactive log are identified. The metadata is recorded in a first location in the active log and the data is recorded in a second location in the active log during a single I/O operation. A reply is sent to the client after the metadata and the data are recorded in the journal partition.Type: GrantFiled: April 23, 2021Date of Patent: August 9, 2022Assignee: NetApp, Inc.Inventors: Kevin Daniel Varghese, Ananthan Subramanian, Parag Sarfare, Sandeep Yadav, Suhas Urkude, Rajesh Khandelwal
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Patent number: 11340812Abstract: 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: GrantFiled: October 6, 2020Date of Patent: May 24, 2022Assignee: 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
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Patent number: 11166070Abstract: Disclosed herein are system, method, and computer program product embodiments for identifying a geographical location of an issue in a broadcasting network. An embodiment operates by a server or a headend sending a diagnostic test to a set-top box capable of processing a channel. The diagnostic test informs the first set-top box to have an idle tuner tune to the channel and to determine a performance characteristic of the first set-top box in processing the first channel. After receipt of the performance characteristic, the server or headend performs an analysis of the first characteristic and determines whether there is an issue in the broadcasting network. If there is an issue, the server or headend identifies a geographical location of the issue in the broadcasting network and sends the geographical location to a user for resolution of the issue.Type: GrantFiled: October 30, 2020Date of Patent: November 2, 2021Assignee: CSC Holdings, LLCInventors: Chris Zydel, Rajesh Khandelwal
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Patent number: 11010078Abstract: One or more techniques and/or computing devices are provided for inline deduplication. For example, a checksum hash table and/or a block number hash table may be maintained within memory (e.g., a storage controller may maintain the hash tables in-core). The checksum hash table may be utilized for inline deduplication to identify potential donor blocks that may comprise the same data as an incoming storage operation. Data within an in-core buffer cache is eligible as potential donor blocks so that inline deduplication may be performed using data from the in-core buffer cache, which may mitigate disk access to underlying storage for which the in-core buffer cache is used for caching. The block number hash table may be used for updating or removing entries from the hash tables, such as for blocks that are no longer eligible as potential donor blocks (e.g., deleted blocks, blocks evicted from the in-core buffer cache, etc.).Type: GrantFiled: January 28, 2020Date of Patent: May 18, 2021Assignee: NetApp Inc.Inventors: Mukul Sharma, Kartik Rathnakar, Dnyaneshwar Nagorao Pawar, Venkateswarlu Telia, Kiran Nenmeli Srinivasan, Rajesh Khandelwal, Alok Sharma
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Publication number: 20210019053Abstract: 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: ApplicationFiled: October 6, 2020Publication date: January 21, 2021Applicant: 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
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Patent number: 10838642Abstract: 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: GrantFiled: March 20, 2019Date of Patent: November 17, 2020Assignee: 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
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Publication number: 20200159432Abstract: One or more techniques and/or computing devices are provided for inline deduplication. For example, a checksum hash table and/or a block number hash table may be maintained within memory (e.g., a storage controller may maintain the hash tables in-core). The checksum hash table may be utilized for inline deduplication to identify potential donor blocks that may comprise the same data as an incoming storage operation. Data within an in-core buffer cache is eligible as potential donor blocks so that inline deduplication may be performed using data from the in-core buffer cache, which may mitigate disk access to underlying storage for which the in-core buffer cache is used for caching. The block number hash table may be used for updating or removing entries from the hash tables, such as for blocks that are no longer eligible as potential donor blocks (e.g., deleted blocks, blocks evicted from the in-core buffer cache, etc.).Type: ApplicationFiled: January 28, 2020Publication date: May 21, 2020Inventors: Mukul Sharma, Kartik Rathnakar, Dnyaneshwar Nagorao Pawar, Venkateswarlu Tella, Kiran Nenmeli Srinivasan, Rajesh Khandelwal, Alok Sharma
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Patent number: 10585611Abstract: One or more techniques and/or computing devices are provided for inline deduplication. For example, a checksum hash table and/or a block number hash table may be maintained within memory (e.g., a storage controller may maintain the hash tables in-core). The checksum hash table may be utilized for inline deduplication to identify potential donor blocks that may comprise the same data as an incoming storage operation. Data within an in-core buffer cache is eligible as potential donor blocks so that inline deduplication may be performed using data from the in-core buffer cache, which may mitigate disk access to underlying storage for which the in-core buffer cache is used for caching. The block number hash table may be used for updating or removing entries from the hash tables, such as for blocks that are no longer eligible as potential donor blocks (e.g., deleted blocks, blocks evicted from the in-core buffer cache, etc.).Type: GrantFiled: April 26, 2016Date of Patent: March 10, 2020Assignee: NetApp Inc.Inventors: Mukul Sharma, Kartik Rathnakar, Dnyaneshwar Nagorao Pawar, Venkateswarlu Tella, Kiran Nenmeli Srinivasan, Rajesh Khandelwal, Alok Sharma
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Publication number: 20190220195Abstract: 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: ApplicationFiled: March 20, 2019Publication date: July 18, 2019Applicant: 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
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Patent number: 10268410Abstract: 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: GrantFiled: October 20, 2014Date of Patent: April 23, 2019Assignee: 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
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Patent number: 9965196Abstract: Storage systems track free blocks using various data structures and maps. For instance, free block maps may contain data blocks with values that indicate whether a block is free or not. When an operation results in a block being freed, the relevant data block in the maps must be written during an I/O operation to update the value. Large numbers of updates my occur after an operation that frees a large numbers of blocks, which can lead to performance degradation. Accordingly, disclosed are systems and methods for deferring updating of free block data tracking structures using logs.Type: GrantFiled: October 20, 2014Date of Patent: May 8, 2018Assignee: NETAPP, INC.Inventors: Rohit Singh, Jungsook Yang, Rajesh Khandelwal, Jayalakshmi Pattabiraman
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Publication number: 20170308320Abstract: One or more techniques and/or computing devices are provided for inline deduplication. For example, a checksum hash table and/or a block number hash table may be maintained within memory (e.g., a storage controller may maintain the hash tables in-core). The checksum hash table may be utilized for inline deduplication to identify potential donor blocks that may comprise the same data as an incoming storage operation. Data within an in-core buffer cache is eligible as potential donor blocks so that inline deduplication may be performed using data from the in-core buffer cache, which may mitigate disk access to underlying storage for which the in-core buffer cache is used for caching. The block number hash table may be used for updating or removing entries from the hash tables, such as for blocks that are no longer eligible as potential donor blocks (e.g., deleted blocks, blocks evicted from the in-core buffer cache, etc.).Type: ApplicationFiled: April 26, 2016Publication date: October 26, 2017Inventors: Mukul Sharma, Kartik Rathnakar, Dnyaneshwar Nagorao Pawar, Venkateswarlu Tella, Kiran Nenmeli Srinivasan, Rajesh Khandelwal, Alok Sharma