Patents by Inventor Marc M. Eshel
Marc M. Eshel 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: 10659554Abstract: A system facilitates access to data in a network and includes a cache that stores instructions. A processor executes the instructions including: caching processing configured to integrate caching into a local cluster file system, and cache local file data in the cache based on fetching file data on demand from a remote cluster file system. The cache is visible to file system clients as a Portable Operating System Interface (POSIX) compliant file system. Applications execute on a multi-node cache cluster using POSIX semantics via a POSIX compliant file system interface. Data cache is locally and remotely consistent for updates.Type: GrantFiled: November 6, 2017Date of Patent: May 19, 2020Assignee: International Business Machines CorporationInventors: Rajagopal Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Publication number: 20180063273Abstract: A system facilitates access to data in a network and includes a cache that stores instructions. A processor executes the instructions including: caching processing configured to integrate caching into a local cluster file system, and cache local file data in the cache based on fetching file data on demand from a remote cluster file system. The cache is visible to file system clients as a Portable Operating System Interface (POSIX) compliant file system. Applications execute on a multi-node cache cluster using POSIX semantics via a POSIX compliant file system interface. Data cache is locally and remotely consistent for updates.Type: ApplicationFiled: November 6, 2017Publication date: March 1, 2018Inventors: Rajagopal Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Patent number: 9860333Abstract: A system facilitates access to data in a network. One implementations includes a caching layer function that is configured to integrate into a local cluster file system, to cache local file data in a cache based on fetching file data on demand from a remote cluster file system, and to operate on a multi-node cache cluster. The cache is visible to file system clients as a Portable Operating System Interface (POSIX) compliant file system, applications execute on the multi-node cache cluster using POSIX semantics via a POSIX compliant file system interface, and data cache is locally consistent for updates made at the multi-node cache cluster using distributed locking for the data cache.Type: GrantFiled: August 10, 2015Date of Patent: January 2, 2018Assignee: International Business Machines CorporationInventors: Rajagopal Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Publication number: 20150350366Abstract: A system facilitates access to data in a network. One implementations includes a caching layer function that is configured to integrate into a local cluster file system, to cache local file data in a cache based on fetching file data on demand from a remote cluster file system, and to operate on a multi-node cache cluster.Type: ApplicationFiled: August 10, 2015Publication date: December 3, 2015Inventors: Rajagopol Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Patent number: 9176980Abstract: Scalable caching of remote file data in cluster file systems is provided. One implementation involves maintaining a cache in a local cluster file system and caching local file data in the cache by fetching file data on demand from the remote cluster file system into the local cached file system over the network. The local file data and metadata corresponds to the remote file data and metadata in the remote cluster file system. Updates made to the local file data and metadata are pushed back to the remote cluster file system asynchronously.Type: GrantFiled: August 8, 2012Date of Patent: November 3, 2015Assignee: International Business Machines CorporationInventors: Rajagopol Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Patent number: 9158788Abstract: Scalable caching of remote file data in cluster file systems is provided. One implementation involves maintaining a cache in a local cluster file system and caching local file data in the cache by fetching file data on demand from the remote cluster file system into the local cached file system over the network. The local file data and metadata corresponds to the remote file data and metadata in the remote cluster file system. Updates made to the local file data and metadata are pushed back to the remote cluster file system asynchronously.Type: GrantFiled: December 16, 2009Date of Patent: October 13, 2015Assignee: International Business Machines CorporationInventors: Rajagopol Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Patent number: 8516159Abstract: Asynchronous file operations in a scalable multi-node file system cache for a remote cluster file system, is provided. One implementation involves maintaining a scalable multi-node file system cache in a local cluster file system, and caching local file data in the cache by fetching file data on demand from the remote cluster file system into the cache over the network. The local file data corresponds to file data in the remote cluster file system. Local file information is asynchronously committed from the cache to the remote cluster file system over the network.Type: GrantFiled: August 8, 2012Date of Patent: August 20, 2013Assignee: International Business Machines CorporationInventors: Rajagopol Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Patent number: 8495250Abstract: Asynchronous file operations in a scalable multi-node file system cache for a remote cluster file system, is provided. One implementation involves maintaining a scalable multi-node file system cache in a local cluster file system, and caching local file data in the cache by fetching file data on demand from the remote cluster file system into the cache over the network. The local file data corresponds to file data in the remote cluster file system. Local file information is asynchronously committed from the cache to the remote cluster file system over the network.Type: GrantFiled: December 16, 2009Date of Patent: July 23, 2013Assignee: International Business Machines CorporationInventors: Rajagopol Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Patent number: 8473582Abstract: Facilitating access to data in a network, is provided. One implementation involves maintaining a scalable multi-node file system cache in a local cluster file system, and caching file data in a cache by fetching file data on demand from a remote cluster file system into the local cached file system over the network. The local file data corresponds to file data in the remote cluster file system. Upon disconnection from the remote cluster file system, all file operations are supported at the cache. Then, upon reconnection to the remote cluster file system over the network, the remote cluster file system is synchronized with the information cached in the cache during the disconnection even in the presence of failures.Type: GrantFiled: December 16, 2009Date of Patent: June 25, 2013Assignee: International Business Machines CorporationInventors: Rajagopol Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Patent number: 8458239Abstract: Directory traversal in a scalable multi-node file system cache for a remote cluster file system, is provided. One implementation involves maintaining a scalable multi-node file system cache in a local cluster file system, and caching local file data in the cache by fetching file data on demand from a remote cluster file system into the cache over the network. The local file data corresponds to file data in the remote cluster file system. The local namespace emulates the remote namespace and is created on demand. Access to data further involves performing directory traversal for the cache for the remote cluster file system by creating a directory structure on demand.Type: GrantFiled: December 16, 2009Date of Patent: June 4, 2013Assignee: International Business Machines CorporationInventors: Rajagopol Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Publication number: 20120311065Abstract: Asynchronous file operations in a scalable multi-node file system cache for a remote cluster file system, is provided. One implementation involves maintaining a scalable multi-node file system cache in a local cluster file system, and caching local file data in the cache by fetching file data on demand from the remote cluster file system into the cache over the network. The local file data corresponds to file data in the remote cluster file system. Local file information is asynchronously committed from the cache to the remote cluster file system over the network.Type: ApplicationFiled: August 8, 2012Publication date: December 6, 2012Applicant: International Business Machines CorporationInventors: Rajagopol ANANTHANARAYANAN, Marc M. Eshel, Roger l. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Publication number: 20120303686Abstract: Scalable caching of remote file data in cluster file systems is provided. One implementation involves maintaining a cache in a local cluster file system and caching local file data in the cache by fetching file data on demand from the remote cluster file system into the local cached file system over the network. The local file data and metadata corresponds to the remote file data and metadata in the remote cluster file system. Updates made to the local file data and metadata are pushed back to the remote cluster file system asynchronously.Type: ApplicationFiled: August 8, 2012Publication date: November 29, 2012Applicant: International Business Machines CorporationInventors: Rajagopol ANANTHANARAYANAN, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Publication number: 20110145367Abstract: Scalable caching of remote file data in cluster file systems is provided. One implementation involves maintaining a cache in a local cluster file system and caching local file data in the cache by fetching file data on demand from the remote cluster file system into the local cached file system over the network. The local file data and metadata corresponds to the remote file data and metadata in the remote cluster file system. Updates made to the local file data and metadata are pushed back to the remote cluster file system asynchronously.Type: ApplicationFiled: December 16, 2009Publication date: June 16, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Rajagopol Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Publication number: 20110145499Abstract: Asynchronous file operations in a scalable multi-node file system cache for a remote cluster file system, is provided. One implementation involves maintaining a scalable multi-node file system cache in a local cluster file system, and caching local file data in the cache by fetching file data on demand from the remote cluster file system into the cache over the network. The local file data corresponds to file data in the remote cluster file system. Local file information is asynchronously committed from the cache to the remote cluster file system over the network.Type: ApplicationFiled: December 16, 2009Publication date: June 16, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Rajagopol Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Publication number: 20110145363Abstract: Facilitating access to data in a network, is provided. One implementation involves maintaining a scalable multi-node file system cache in a local cluster file system, and caching file data in a cache by fetching file data on demand from a remote cluster file system into the local cached file system over the network. The local file data corresponds to file data in the remote cluster file system. Upon disconnection from the remote cluster file system, all file operations are supported at the cache. Then, upon reconnection to the remote cluster file system over the network, the remote cluster file system is synchronized with the information cached in the cache during the disconnection even in the presence of failures.Type: ApplicationFiled: December 16, 2009Publication date: June 16, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Rajagopol Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Publication number: 20110145307Abstract: Directory traversal in a scalable multi-node file system cache for a remote cluster file system, is provided. One implementation involves maintaining a scalable multi-node file system cache in a local cluster file system, and caching local file data in the cache by fetching file data on demand from a remote cluster file system into the cache over the network. The local file data corresponds to file data in the remote cluster file system. The local namespace emulates the remote namespace and is created on demand. Access to data further involves performing directory traversal for the cache for the remote cluster file system by creating a directory structure on demand.Type: ApplicationFiled: December 16, 2009Publication date: June 16, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Rajagopol Ananthanarayanan, Marc M. Eshel, Roger L. Haskin, Dean Hildebrand, Manoj P. Naik, Frank B. Schmuck, Renu Tewari
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Patent number: 7962915Abstract: A state management system preserves a state for a cluster of file servers in a cluster file system in the presence of load balancing, failover, and fail-back events. The system provides a file and record locking solution for a clustered network attached storage system running on top of a cluster file system. The system employs a lock ownership scheme in which ownership identifiers are guaranteed to be unique across clustered servers and across various protocols the clustered servers may be exporting. The system supports multi-protocol clustered NAS gateways, NAS gateway server failover and fail-back, and load-balancing architectures. The system further eliminates a need for a lock migration protocol, resulting in improved efficiency and simplicity.Type: GrantFiled: March 18, 2005Date of Patent: June 14, 2011Assignee: International Business Machines CorporationInventors: Marc M. Eshel, Juan Carlos Gomez, Manoj Premanand Naik
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Patent number: 7792980Abstract: Asynchronous messages are used to prefetch and/or relinquish tokens used in providing locking of shared resources. A message is sent to prefetch one or more tokens, and prior to receiving a reply for the message, another message (e.g., an acquire) is sent for at least one of those tokens. Similarly, a message is sent indicating a voluntary relinquish of one or more tokens and without having acknowledgment that the relinquish request was processed, a further message (e.g., an acquire) is sent for at least one of the tokens. Multiple tokens may be acquired and/or relinquished in a single message to the token server. This reduces message delays and overall message traffic.Type: GrantFiled: December 20, 2007Date of Patent: September 7, 2010Assignee: International Business Machines CorporationInventors: Marc M. Eshel, Frank B. Schmuck
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Patent number: 7325064Abstract: Asynchronous messages are used to prefetch and/or relinquish tokens used in providing locking of shared resources. A message is sent to prefetch one or more tokens, and prior to receiving a reply for the message, another message (e.g., an acquire) is sent for at least one of those tokens. Similarly, a message is sent indicating a voluntary relinquish of one or more tokens and without having acknowledgment that the relinquish request was processed, a further message (e.g., an acquire) is sent for at least one of the tokens. Multiple tokens may be acquired and/or relinquished in a single message to the token server. This reduces message delays and overall message traffic.Type: GrantFiled: July 17, 2001Date of Patent: January 29, 2008Assignee: International Business Machines CorporationInventors: Marc M Eshel, Frank B Schmuck
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Patent number: 7085815Abstract: The amount of memory being utilized to store token state information is monitored. In response to the monitoring, one or more actions are taken. For instance, if the monitoring indicates that too much memory is being used to store token state information, then one or more actions are performed to reclaim memory and/or obtain additional memory elsewhere. These actions may include informing one or more clients to reduce their cache sizes, thereby relinquishing tokens; reducing or eliminating one or more byte range token trees; and/or migrating the token server from one node to another node. If the monitoring indicates that additional memory can be used for storing token state information, then one or more client nodes are informed that their cache sizes can be increased.Type: GrantFiled: July 17, 2001Date of Patent: August 1, 2006Assignee: International Business Machines CorporationInventors: Brian P. Dixon, Marc M. Eshel, Frank B. Schmuck