Patents by Inventor Deepak Raghunath Attarde
Deepak Raghunath Attarde 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: 11294871Abstract: A deduplicated storage system is provided according to certain embodiments that uses one or more mechanisms to update the deduplication database and remove records corresponding to data blocks that have been or will be erased from the secondary copies, without using or tracking reference counting values. Some embodiments described herein use a secondary table (for tracking archive file contents) and a bitmap to mark which primary records are present in the secondary table. In another embodiment, once the marking phase is completed, the deduplication system uses the marked-up bitmap to identify the corresponding records from the primary table that can be moved to another table for storing “zero-reference” data blocks. In other embodiments, the system will then traverse the “zero-reference” table and remove those primary data blocks from secondary storage devices.Type: GrantFiled: September 12, 2019Date of Patent: April 5, 2022Assignee: Commvault Systems, Inc.Inventors: Deepak Raghunath Attarde, Manoj Kumar Vijayan
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Publication number: 20220043712Abstract: The disclosed enhancements optimize the use of the live browse cache and pseudo-disk storage areas, improving metadata handling so that it can be used more effectively to speed up live browse and file indexing of backup copies in a data storage management system. The enhancements operate granularly to identify within each extent being backed up smaller sectors that comprise metadata. The disclosed approach pre-fetches the metadata of the backup copy before allowing the file scan of the file indexing and/or the live browse operation to proceed. The backup operation, the file indexing operation, and the live browse operation are enhanced to handle the more granular metadata sectors without changing the granularity of the full extents generated and stored in the backup.Type: ApplicationFiled: June 22, 2021Publication date: February 10, 2022Inventors: Pratik S. RANA, Deepak Raghunath ATTARDE
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Patent number: 11228647Abstract: According to various embodiments, systems and methods are provided that relate to shared access to Storage Area Networks (SAN) devices. In one embodiment, a Storage Area Network (SAN) host is provided, comprising: a server component: a first host bus adapter configured to be connected to a SAN client over a first SAN; a second host bus adapter configured to be connected to a SAN storage device over a second SAN; and wherein the server component is configured to manage a data block on the SAN storage device, receive a storage operation request from the SAN client through the first host bus adapter, and in response to the storage operation request, perform a storage operation on the data block, the storage operation being performed over the second SAN through the second host bus adapter.Type: GrantFiled: February 13, 2020Date of Patent: January 18, 2022Assignee: Commvault Systems, Inc.Inventors: Manoj Kumar Vijayan, Srikant Viswanathan, Deepak Raghunath Attarde, Varghese Devassy, Rajiv Kottomtharayil
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Patent number: 11188504Abstract: An information management system can manage the removal of data block entries in a deduplicated data store using working copies of the data block entries residing in a local data store of a secondary storage computing device. The system can use the working copies to identify data blocks for removal. Once the deduplication database is updated with the changes to the working copies (e.g., using a transaction based update scheme), the system can query the deduplication database for the database entries identified for removal. Once identified, the system can remove the database entries identified for pruning and/or the corresponding deduplication data blocks from secondary storage.Type: GrantFiled: August 23, 2019Date of Patent: November 30, 2021Assignee: Commvault Systems, Inc.Inventors: Deepak Raghunath Attarde, Manoj Kumar Vijayan
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Patent number: 11182255Abstract: An information management system according to certain aspects allows users to share a portion of a file (e.g., a document) stored in secondary storage. The user may specify a portion of a secondary storage file to share and send a link to the portion to another user. The other user can access the shared portion from the link, and just the shared portion may be restored from secondary storage. The system according to certain aspects provides a native view of secondary storage data on a client computing device. The index data and/or metadata relating to secondary storage data may be stored in native application format for access via the native source application.Type: GrantFiled: February 21, 2020Date of Patent: November 23, 2021Assignee: Commvault Systems, Inc.Inventors: Prakash Varadharajan, Anand Vibhor, Amey Vijaykumar Karandikar, Manoj Kumar Vijayan, Deepak Raghunath Attarde
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Patent number: 11175996Abstract: According to certain aspects, a method can include receiving an indication that a restoration of a deduplication database using a secondary copy of a file associated with a secondary copy job is complete; retrieving a first data fingerprint from a data storage database, wherein the first data fingerprint is associated with the secondary copy job used to restore the deduplication database; retrieving a second data fingerprint from a deduplication database media agent, wherein the second data fingerprint is associated with the secondary copy job used to restore the deduplication database; comparing the first data fingerprint with the second data fingerprint to determine whether the first data fingerprint and the second data fingerprint match; and transmitting an instruction to the deduplication database media agent to rebuild the restored deduplication database in response to a determination that the first data fingerprint and the second data fingerprint do not match.Type: GrantFiled: January 15, 2020Date of Patent: November 16, 2021Assignee: Commvault Systems, Inc.Inventors: Chandrashekar Maranna, Manoj Kumar Vijayan, Abhishek Narulkar, Deepak Raghunath Attarde, Saurabh Agrawal
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Patent number: 11169888Abstract: A storage system according to certain embodiments includes a client-side repository (CSR). The CSR may communicate with a client at a higher data transfer rate than the rate used for communication between the client and secondary storage. During copy operations, for instance, some or all of the data being backed up or otherwise copied to secondary storage is stored in the CSR. During restore operations, copies of the data stored in the CSR is accessed from the CSR instead of from secondary storage, improving performance. Remaining data blocks not stored in the CSR can be restored from secondary storage.Type: GrantFiled: December 18, 2018Date of Patent: November 9, 2021Assignee: Commvault Systems, Inc.Inventors: Manoj Kumar Vijayan, Deepak Raghunath Attarde, Hetalkumar N. Joshi
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Publication number: 20210326214Abstract: The data storage system according to certain aspects can implement partial file restore, where only a portion of the secondary copy of a file is restored. Such portion may be designated by one or more application offsets for the file. The system may provide an in-chunk index that includes mapping information between the application offsets and the secondary copy offsets. Chunks may refer to logical data units in which secondary copies are stored, and the in-chunk index for a chunk may be stored in secondary storage with the chunk. Because the mapping information may not be provided at a fixed interval, the system can search through application offsets in the in-chunk index to locate the secondary copy offset corresponding to the portion application offset(s). In this manner, the system may restore the designated portion of the secondary copy in a fast and efficient manner by using the in-chunk index.Type: ApplicationFiled: February 16, 2021Publication date: October 21, 2021Inventors: Manoj Kumar VIJAYAN, Deepak Raghunath ATTARDE
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Publication number: 20210294510Abstract: Systems and methods are provided herein for automatically configuring newly installed secondary storage computing devices and managing secondary storage computing devices when one or more become unavailable. For example, a storage manager can then detect the computing resources available to the newly installed secondary storage computing device, assign a role to the newly installed secondary storage computing device based on the detected computing resources, configure the newly installed secondary storage computing device with deduplication and storage policies used by the other secondary storage computing devices, re-partition secondary storage devices to allocate memory for the newly installed secondary storage computing device, and instruct other secondary storage computing devices to replicate their managed data such that the newly installed secondary storage computing device has access to the replicated data.Type: ApplicationFiled: February 12, 2021Publication date: September 23, 2021Inventors: Manoj Kumar VIJAYAN, Jaidev Oppath KOCHUNNI, Deepak Raghunath ATTARDE, Ramachandra Reddy ANKIREDDYPALLE
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Publication number: 20210289028Abstract: A method and system for providing information management of data from hosted services receives information management policies for a hosted account of a hosted service, requests data associated with the hosted account from the hosted service, receives data associated with the hosted account from the hosted service, and provides a preview version of the received data to a computing device. In some examples, the system indexes the received data to associate the received data with a user of an information management system, and/or provides index information related to the received data to the computing device.Type: ApplicationFiled: April 5, 2021Publication date: September 16, 2021Inventors: Manoj Kumar VIJAYAN, Ho-Chi CHEN, Deepak Raghunath ATTARDE, Hetalkumar N. JOSHI
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Patent number: 11119984Abstract: An information management system can manage the removal of data block entries in a deduplicated data store using working copies of the data block entries residing in a local data store of a secondary storage computing device. The system can use the working copies to identify data blocks for removal. Once the deduplication database is updated with the changes to the working copies (e.g., using a transaction based update scheme), the system can query the deduplication database for the database entries identified for removal. Once identified, the system can remove the database entries identified for pruning and/or the corresponding deduplication data blocks from secondary storage.Type: GrantFiled: June 25, 2019Date of Patent: September 14, 2021Assignee: Commvault Systems, Inc.Inventors: Deepak Raghunath Attarde, Manoj Kumar Vijayan
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Publication number: 20210271758Abstract: This application relates to ransomware detection and data pruning management. Ransomware typically involves an I/O heavy process of encrypting data files and/or deleting or renaming the original files. Thus, ransomware attacks may be detected by analyzing the I/O activity in a given file system. In some embodiments, a software module running on a client machine manages copying, archiving, migrating, and/or replicating of primary data and restoring and/or pruning secondary data (e.g., backup copies of the primary data). When a potential ransomware attack is detected, the software module is immediately stopped so that the software module does not prune any data that may need to be restored. Upon receiving user input that indicates that the client machine is not under a ransomware attack, the software module is allowed to resume its operations, including pruning of the secondary data.Type: ApplicationFiled: February 11, 2021Publication date: September 2, 2021Inventors: PurnaChandra Sekhar BEDHAPUDI, Sri Karthik BHAGI, Deepak Raghunath ATTARDE, Arun Prasad AMARENDRAN, Amit Bhaskar AUSARKAR, Mrityunjay UPADHYAY
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Publication number: 20210263803Abstract: Described in detail herein are systems and methods for single instancing blocks of data in a data storage system. For example, the data storage system may include multiple computing devices (e.g., client computing devices) that store primary data. The data storage system may also include a secondary storage computing device, a single instance database, and one or more storage devices that store copies of the primary data (e.g., secondary copies, tertiary copies, etc.). The secondary storage computing device receives blocks of data from the computing devices and accesses the single instance database to determine whether the blocks of data are unique (meaning that no instances of the blocks of data are stored on the storage devices). If a block of data is unique, the single instance database stores it on a storage device. If not, the secondary storage computing device can avoid storing the block of data on the storage devices.Type: ApplicationFiled: February 5, 2021Publication date: August 26, 2021Inventors: Deepak Raghunath ATTARDE, Rajiv KOTTOMTHARAYIL, Manoj Kumar VIJAYAN
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Publication number: 20210232460Abstract: Described in detail herein are systems and methods for managing single instancing data. Using a single instance database and other constructs (e.g. sparse files), data density on archival media (e.g. magnetic tape) is improved, and the number of files per storage operation is reduced. According to one aspect of a method for managing single instancing data, for each storage operation, a chunk folder is created on a storage device that stores single instancing data. The chunk folder contains three files: 1) a file that contains data objects that have been single instanced; 2) a file that contains data objects that have not been eligible for single instancing; and 3) a metadata file used to track the location of data objects within the other files. A second storage operation subsequent to a first storage operation contains references to data objects in the chunk folder created by the first storage operation instead of the data objects themselves.Type: ApplicationFiled: April 16, 2021Publication date: July 29, 2021Inventors: Rajiv KOTTOMTHARAYIL, Deepak Raghunath ATTARDE, Manoj Kumar VIJAYAN
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Publication number: 20210209056Abstract: Techniques for enabling user search of content stored in a file archive include providing a search interface comprising a search rules portion and an action rules portion, receiving a file archive search criterion comprising at least one search rule, and searching the file archive using the search criterion. The techniques also include generating a set of files filtered using the search criterion and performing an action specified in the action rules portion on a file included in the set of files.Type: ApplicationFiled: February 25, 2021Publication date: July 8, 2021Inventors: Paramasivam KUMARASAMY, Prakash VARADHARAJAN, Deepak Raghunath ATTARDE, Pavan Kumar Reddy BEDADALA, Satish Chandra KILARU
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Publication number: 20210209128Abstract: Described are systems and methods for storing a variable number of instances of data objects (e.g., 1, 2, 3, or up to N?1 instances, where N is the number of instances of the data object included in primary data) in secondary storage across a data storage network. In some examples, a system for storing a variable number of instances of data objects includes, one or more computing devices storing a set of data objects and multiple storage devices distinct from the one or more computing devices. Each of the multiple storage devices is configured to store at least a single instance of a data object. The system also includes a database configured to store information associated with the data objects. This information includes substantially unique identifiers for the data objects and, for each of the data objects, a number of instances of the data object stored on the multiple storage devices.Type: ApplicationFiled: March 1, 2021Publication date: July 8, 2021Inventors: Marcus S. MULLER, Deepak Raghunath ATTARDE, Manoj Kumar VIJAYAN
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Publication number: 20210208785Abstract: A method and system for reducing storage requirements and speeding up storage operations by reducing the storage of redundant data includes receiving a request that identifies one or more data objects to which to apply a storage operation. For each data object, the storage system determines if the data object contains data that matches another data object to which the storage operation was previously applied. If the data objects do not match, then the storage system performs the storage operation in a usual manner. However, if the data objects do match, then the storage system may avoid performing the storage operation.Type: ApplicationFiled: January 13, 2021Publication date: July 8, 2021Inventors: Anand PRAHLAD, Parag GOKHALE, Rajiv KOTTOMTHARAYIL, Manoj Kumar Vijayan, Deepak Raghunath Attarde
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Patent number: 11016858Abstract: Described in detail herein are systems and methods for managing single instancing data. Using a single instance database and other constructs (e.g. sparse files), data density on archival media (e.g. magnetic tape) is improved, and the number of files per storage operation is reduced. According to one aspect of a method for managing single instancing data, for each storage operation, a chunk folder is created on a storage device that stores single instancing data. The chunk folder contains three files: 1) a file that contains data objects that have been single instanced; 2) a file that contains data objects that have not been eligible for single instancing; and 3) a metadata file used to track the location of data objects within the other files. A second storage operation subsequent to a first storage operation contains references to data objects in the chunk folder created by the first storage operation instead of the data objects themselves.Type: GrantFiled: March 31, 2015Date of Patent: May 25, 2021Assignee: Commvault Systems, Inc.Inventors: Rajiv Kottomtharayil, Deepak Raghunath Attarde, Manoj Kumar Vijayan
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Patent number: 10999373Abstract: A method and system for providing information management of data from hosted services receives information management policies for a hosted account of a hosted service, requests data associated with the hosted account from the hosted service, receives data associated with the hosted account from the hosted service, and provides a preview version of the received data to a computing device. In some examples, the system indexes the received data to associate the received data with a user of an information management system, and/or provides index information related to the received data to the computing device.Type: GrantFiled: January 22, 2020Date of Patent: May 4, 2021Assignee: Commvault Systems, Inc.Inventors: Manoj Kumar Vijayan, Ho-Chi Chen, Deepak Raghunath Attarde, Hetalkumar N. Joshi
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Patent number: 10970304Abstract: Described are systems and methods for storing a variable number of instances of data objects (e.g., 1, 2, 3, or up to N?1 instances, where N is the number of instances of the data object included in primary data) in secondary storage across a data storage network. In some examples, a system for storing a variable number of instances of data objects includes, one or more computing devices storing a set of data objects and multiple storage devices distinct from the one or more computing devices. Each of the multiple storage devices is configured to store at least a single instance of a data object. The system also includes a database configured to store information associated with the data objects. This information includes substantially unique identifiers for the data objects and, for each of the data objects, a number of instances of the data object stored on the multiple storage devices.Type: GrantFiled: September 1, 2017Date of Patent: April 6, 2021Assignee: Commvault Systems, Inc.Inventors: Marcus S. Muller, Deepak Raghunath Attarde, Manoj Kumar Vijayan