Patents by Inventor Ravi Wijayaratne
Ravi Wijayaratne 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: 9922203Abstract: A method for providing access to objects associated with a particular client in a cloud storage system is disclosed. The method includes the steps of establishing a connection with a user, providing a client namespace associated with the client to the user, where the client namespace represents objects stored on the cloud storage system and objects stored on a private storage system apart from the cloud storage system, receiving a request from the user to access an object stored on the private storage system, and providing information to the user to facilitate access to the object stored on the private storage system by said user. Other systems and methods are also disclosed. Important advantages of the present invention are facilitated by separating the logic for user access (control plane) from the actual storage (Storage plane). Private file system access can still be managed from the cloud, while keeping the client data private.Type: GrantFiled: January 29, 2016Date of Patent: March 20, 2018Assignee: Egnyte, Inc.Inventors: Hakan Ancin, Xi Chen, Amrit Jassal, Daniel H. Jung, Gregory B. Neustaetter, Sean H. Puttergill, Ramakrishnan Sundararaj, Sanjay Vedanthan, Chandra Yalangi, Ramanathan Kavasseri, Ravi Wijayaratne, Shishir Sharma
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Publication number: 20180067933Abstract: A network storage system comprises data storage, one or more file system APIs, and a metadata handler. The data storage can comprise file data and associated metadata. The file system APIs can be configured to read and write file data and metadata to and from the data storage. The metadata handler can have a library of functions for handling the metadata. The library can include a metadata blob creation function and a metadata blob extraction function. The metadata blob creation function cooperates with the file system APIs to read source metadata associated with specified file data and creates and populates a metadata blob from which a substantial copy of the source metadata can be generated. The metadata blob extraction function receives at least a metadata blob, extracts information from the metadata blob, and cooperates with the file system APIs to generate destination metadata, a substantial copy of the source metadata.Type: ApplicationFiled: November 9, 2017Publication date: March 8, 2018Inventors: Marc Kaplan, Ravi Wijayaratne, Kevin Osborn, Dan Burrows
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Patent number: 9881017Abstract: A method for synchronizing a file system (FS) and a remote file system (RFS) includes monitoring the FS for FS events, generating FS event records, receiving RFS event records of RFS events, generating file system operations (FSOs) based on the FS and RFS event records, and communicating the FSOs to the FS and RFS to synchronize them. A method for generating the FSOs includes accessing a plurality of FS and/or RFS event records, processing the accessed records to generate processed event records, generating the FSOs based on the processed event records, and outputting the FSOs to cause synchronization of the FS and RFS. Systems are also described. The invention facilitates event-based, steady-state synchronization of local and remote file systems.Type: GrantFiled: August 2, 2013Date of Patent: January 30, 2018Assignee: EGNYTE, INC.Inventors: Ravi Wijayaratne, Remus Koos, Ray White, Manish Marathe, Markku Mielityinen, Amrit Jassal, Rajesh Ram, Sriram Gopalan, Aahz, Heikki J. Toivonen
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Patent number: 9858288Abstract: A method for synchronizing a file system (FS) and a remote file system (RFS) includes monitoring the FS for FS events, generating FS event records, receiving RFS event records of RFS events, generating file system operations (FSOs) based on the FS and RFS event records, and communicating the FSOs to the FS and RFS to synchronize them. A method for generating the FSOs includes accessing a plurality of FS and/or RFS event records, processing the accessed records to generate processed event records, generating the FSOs based on the processed event records, and outputting the FSOs to cause synchronization of the FS and RFS. Systems are also described. The invention facilitates event-based, steady-state synchronization of local and remote file systems.Type: GrantFiled: August 2, 2013Date of Patent: January 2, 2018Assignee: EGNYTE, INC.Inventors: Ravi Wijayaratne, Remus Koos, Ray White, Manish Marathe, Markku Mielityinen, Amrit Jassal, Rajesh Ram, Sriram Gopalan, Aahz, Heikki J. Toivonen
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Patent number: 9836471Abstract: A network storage system comprises data storage, one or more file system APIs, and a metadata handler. The data storage can comprise file data and associated metadata. The file system APIs can be configured to read and write file data and metadata to and from the data storage. The metadata handler can have a library of functions for handling the metadata. The library can include a metadata blob creation function and a metadata blob extraction function. The metadata blob creation function cooperates with the file system APIs to read source metadata associated with specified file data and creates and populates a metadata blob from which a substantial copy of the source metadata can be generated. The metadata blob extraction function receives at least a metadata blob, extracts information from the metadata blob, and cooperates with the file system APIs to generate destination metadata, a substantial copy of the source metadata.Type: GrantFiled: September 14, 2012Date of Patent: December 5, 2017Assignee: Overland Storage, Inc.Inventors: Marc Kaplan, Ravi Wijayaratne, Kevin Osborn, Dan Burrows
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Patent number: 9483491Abstract: A method of managing file permissions in a remote file storage system includes defining permissions for the remote file storage system and controlling access to objects on the remote file storage system according to the permissions of the remote file storage system. The permissions are transferred to a client file storage system remote from the remote file storage system, and access to objects on the client file storage system is controlled according to the permissions of the remote file storage system. A remote file storage system includes a permissions file generator operative to generate a permissions file, which is transmitted to a client file storage system for enforcement at the client file storage system.Type: GrantFiled: November 29, 2012Date of Patent: November 1, 2016Assignee: EGNYTE, INC.Inventors: Ravi Wijayaratne, Ray White, Manish Marathe, Aahz, Rajesh Ram, Amrit Jassal
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Patent number: 9479585Abstract: A clustered network storage system includes a policy based storage efficiency management framework to allow users to more efficiently manage storage efficiency attributes on a plurality of storage objects in the clustered network storage system. The storage efficiency management framework includes a policy database for storing a plurality of polices, each of which includes a plurality of attributes. Each storage object in the clustered network storage system is assigned a policy. Storage efficiency operations can then be initiated by a storage efficiency engine according to the policies assigned to the storage objects by sending a single trigger to each node in the clustered network storage system and the storage efficiency engine determining on which storage objects to perform the storage efficiency operations.Type: GrantFiled: July 13, 2010Date of Patent: October 25, 2016Assignee: NetApp, Inc.Inventors: Varun Jobanputra, Ravi Wijayaratne, Ashok Dwarakinath, Atul Ramesh Pandit
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Publication number: 20160299917Abstract: The invention prevents improper deletes of file system objects during rescan synchronizations of local and remote (cloud) file systems. File and folder deletes are validated (confirmed) during a rescan synchronization using events generated for a steady state synchronization process. Any improper deletes are fenced and not allowed to proceed during synchronization. A method for synchronizing local (LFS) and remote (RFS) file systems includes monitoring the LFS for changes, generating a first set of events as part of a first synchronization routine (e.g., a steady state synchronization routine), generating a second set of events as part of a second (rescan) synchronization routine, validating selected events of the second set with events of the first set to determine whether each of the selected events of the second set is valid or invalid, and synchronizing the file systems based on the events of the second set excluding those that have been invalidated. Storage systems are also disclosed.Type: ApplicationFiled: April 8, 2016Publication date: October 13, 2016Applicant: Egnyte, Inc.Inventors: Remus Koos, Ravi Wijayaratne, Manish Marathe, Ray White, Dmitry Tisnek, Roman Levin, Harikesavan Krishnan, Hakan Ancin, Purvi Talati
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Publication number: 20160149888Abstract: A method for providing access to objects associated with a particular client in a cloud storage system is disclosed. The method includes the steps of establishing a connection with a user, providing a client namespace associated with the client to the user, where the client namespace represents objects stored on the cloud storage system and objects stored on a private storage system apart from the cloud storage system, receiving a request from the user to access an object stored on the private storage system, and providing information to the user to facilitate access to the object stored on the private storage system by said user. Other systems and methods are also disclosed. Important advantages of the present invention are facilitated by separating the logic for user access (control plane) from the actual storage (Storage plane). Private file system access can still be managed from the cloud, while keeping the client data private.Type: ApplicationFiled: January 29, 2016Publication date: May 26, 2016Inventors: Hakan Ancin, Xi Chen, Amrit Jassal, Daniel H. Jung, Gregory B. Neustaetter, Sean H. Puttergill, Ramakrishnan Sundararaj, Sanjay Vedanthan, Chandra Yalangi, Ramanathan Kavasseri, Ravi Wijayaratne, Shishir Sharma
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Publication number: 20160149926Abstract: A method for providing access to objects associated with a particular client in a cloud storage system is disclosed. The method includes the steps of establishing a connection with a user, providing a client namespace associated with the client to the user, where the client namespace represents objects stored on the cloud storage system and objects stored on a private storage system apart from the cloud storage system, receiving a request from the user to access an object stored on the private storage system, and providing information to the user to facilitate access to the object stored on the private storage system by said user. Other systems and methods are also disclosed. Important advantages of the present invention are facilitated by separating the logic for user access (control plane) from the actual storage (Storage plane). Private file system access can still be managed from the cloud, while keeping the client data private.Type: ApplicationFiled: January 29, 2016Publication date: May 26, 2016Inventors: Hakan Ancin, Xi Chen, Amrit Jassal, Daniel H. Jung, Gregory B. Neustaetter, Sean H. Puttergill, Ramakrishnan Sundararaj, Sanjay Vedanthan, Chandra Yalangi, Ramanathan Kavasseri, Ravi Wijayaratne, Shishir Sharma
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Patent number: 9251114Abstract: A method for providing access to objects associated with a particular client in a cloud storage system is disclosed. The method includes the steps of establishing a connection with a user, providing a client namespace associated with the client to the user, where the client namespace represents objects stored on the cloud storage system and objects stored on a private storage system apart from the cloud storage system, receiving a request from the user to access an object stored on the private storage system, and providing information to the user to facilitate access to the object stored on the private storage system by said user. Other systems and methods are also disclosed. Important advantages of the present invention are facilitated by separating the logic for user access (control plane) from the actual storage (Storage plane). Private file system access can still be managed from the cloud, while keeping the client data private.Type: GrantFiled: October 14, 2013Date of Patent: February 2, 2016Assignee: EGNYTE, INC.Inventors: Hakan Ancin, Xi Chen, Amrit Jassal, Daniel H. Jung, Gregory B. Neustaetter, Sean H. Puttergill, Ramakrishnan Sundararaj, Sanjay Vedanthan, Chandra Yalangi, Ramanathan Kavasseri, Ravi Wijayaratne, Shishir Sharma
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Publication number: 20160019233Abstract: A method for synchronizing a local file system (LFS) and a remote (cloud) file system (RFS) includes the step of storing events indicative of differences between the LFS and the RFS, where the events are associated with file system objects of the LFS and RFS. The method further includes the steps of prioritizing the events, generating file system operations for the events based at least in part on the prioritization of the events, and performing at least some of the file system operations to synchronize the LFS and RFS. Prioritizing the events includes defining a plurality of service classes (e.g., based on type of event, event attribute, etc.), assigning a priority to each of the service classes, and assigning each event to one of said service classes. Systems are also described. The invention allocates limited synchronization resources based on a predefined policy to synchronize important file system objects sooner.Type: ApplicationFiled: July 21, 2015Publication date: January 21, 2016Inventors: Ravi Wijayaratne, Remus Koos, Ray White, Manish Marathe, Dmitry Tisnek, Harikesavan Krishnan, Amrit Jassal
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Patent number: 9146780Abstract: A clustered network storage system includes a management module and a resource allocation mechanism configured to allow remote management of node resources from the management module while preventing resource over-commitment due to the remote management. Preventing resource over-commitment includes conditionally granting access to the resources of a node according to a credit based system. Preventing resource over-commitment further includes scheduling jobs that access the resources of the node according to a prioritization scheme.Type: GrantFiled: January 16, 2013Date of Patent: September 29, 2015Assignee: NETAPP, INC.Inventors: Ravi Wijayaratne, Ashok Dwarakinath, Varun Jobanputra
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Patent number: 8892507Abstract: Described are techniques for performing quota management in a distributed file system. An allocation quota specifies an upper limit of storage for allocation for a quota set of the distributed file system. The distributed file system includes metadata file system(s) and data file system(s). For files in the distributed file system, metadata is stored in one of the metadata file systems and file content data is stored in the data file systems. A quota coordinator partitions the allocation quota among the data file systems. The data file systems are allocators of storage and each receives a portion of the allocation quota specifying an upper limit of storage that the data file system has available for allocation for the quota set. Storage is allocated for client requests. The storage allocation is performed by each of the data file systems in accordance with the portion of the allocation quota assigned.Type: GrantFiled: July 9, 2013Date of Patent: November 18, 2014Assignee: EMC CorporationInventors: Thomas J. Dwyer, III, Ravi Wijayaratne, Daniel A. Muntz, David Noveck, Sairam Veeraswamy
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Publication number: 20140149461Abstract: A method of managing file permissions in a remote file storage system includes defining permissions for the remote file storage system and controlling access to objects on the remote file storage system according to the permissions of the remote file storage system. The permissions are transferred to a client file storage system remote from the remote file storage system, and access to objects on the client file storage system is controlled according to the permissions of the remote file storage system. A remote file storage system includes a permissions file generator operative to generate a permissions file, which is transmitted to a client file storage system for enforcement at the client file storage system.Type: ApplicationFiled: November 29, 2012Publication date: May 29, 2014Inventors: Ravi Wijayaratne, Ray White, Manish Marathe, Aahz, Rajesh Ram, Amrit Jassal
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Publication number: 20140040197Abstract: A method for synchronizing a file system (FS) and a remote file system (RFS) includes monitoring the FS for FS events, generating FS event records, receiving RFS event records of RFS events, generating file system operations (FSOs) based on the FS and RFS event records, and communicating the FSOs to the FS and RFS to synchronize them. A method for generating the FSOs includes accessing a plurality of FS and/or RFS event records, processing the accessed records to generate processed event records, generating the FSOs based on the processed event records, and outputting the FSOs to cause synchronization of the FS and RFS. Systems are also described. The invention facilitates event-based, steady-state synchronization of local and remote file systems.Type: ApplicationFiled: August 2, 2013Publication date: February 6, 2014Inventors: Ravi Wijayaratne, Remus Koos, Ray White, Manish Marathe, Markku Mielityinen, Amrit Jassal, Rajesh Ram, Sriram Gopalan, Aahz, Heikki J. Toivonen
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Publication number: 20140040196Abstract: A method for synchronizing a file system (FS) and a remote file system (RFS) includes monitoring the FS for FS events, generating FS event records, receiving RFS event records of RFS events, generating file system operations (FSOs) based on the FS and RFS event records, and communicating the FSOs to the FS and RFS to synchronize them. A method for generating the FSOs includes accessing a plurality of FS and/or RFS event records, processing the accessed records to generate processed event records, generating the FSOs based on the processed event records, and outputting the FSOs to cause synchronization of the FS and RFS. Systems are also described. The invention facilitates event-based, steady-state synchronization of local and remote file systems.Type: ApplicationFiled: August 2, 2013Publication date: February 6, 2014Inventors: Ravi Wijayaratne, Remus Koos, Ray White, Manish Marathe, Markku Mielityinen, Amrit Jassal, Rajesh Ram, Sriram Gopalan, Aahz, Heikki J. Toivonen
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Patent number: 8589449Abstract: A network storage system comprises data storage, one or more file system APIs, and a metadata handler. The data storage can comprise file data and associated metadata. The file system APIs can be configured to read and write file data and metadata to and from the data storage. The metadata handler can have a library of functions for handling the metadata. The library can include a metadata blob creation function and a metadata blob extraction function. The metadata blob creation function cooperates with the file system APIs to read source metadata associated with specified file data and creates and populates a metadata blob from which a substantial copy of the source metadata can be generated. The metadata blob extraction function receives at least a metadata blob, extracts information from the metadata blob, and cooperates with the file system APIs to generate destination metadata, a substantial copy of the source metadata.Type: GrantFiled: November 17, 2008Date of Patent: November 19, 2013Assignee: Overland Storage, Inc.Inventors: Marc Kaplan, Ravi Wijayaratne, Kevin Osborn, Dan Burrows
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Patent number: 8515904Abstract: Described are techniques for performing quota management in a distributed file system. An allocation quota specifies an upper limit of storage for allocation for a quota set of the distributed file system. The distributed file system includes metadata file system(s) and data file system(s). For files in the distributed file system, metadata is stored in one of the metadata file systems and file content data is stored in the data file systems. A quota coordinator partitions the allocation quota among the data file systems. The data file systems are allocators of storage and each receives a portion of the allocation quota specifying an upper limit of storage that the data file system has available for allocation for the quota set. Storage is allocated for client requests. The storage allocation is performed by each of the data file systems in accordance with the portion of the allocation quota assigned.Type: GrantFiled: March 29, 2012Date of Patent: August 20, 2013Assignee: EMC CorporationInventors: Thomas J. Dwyer, III, Ravi Wijayaratne, Daniel A. Muntz, David Noveck, Sairam Veeraswamy
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Patent number: 8381217Abstract: A clustered network storage system includes a management module and a resource allocation mechanism configured to allow remote management of node resources from the management module while preventing resource over-commitment due to the remote management. Preventing resource over-commitment includes conditionally granting access to the resources of a node according to a credit based system. Preventing resource over-commitment further includes scheduling jobs that access the resources of the node according to a prioritization scheme.Type: GrantFiled: April 30, 2010Date of Patent: February 19, 2013Assignee: NetApp, Inc.Inventors: Ravi Wijayaratne, Ashok Dwarakinath, Varun Jobanputra