Patents by Inventor Shay H. Akirav
Shay H. Akirav 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: 8892830Abstract: Exemplary method, system, and computer program product embodiments for changing ownership of cartridges, such as virtual cartridges between remotely located virtual tape libraries, are provided. In one embodiment, by way of example only, processes and protocols for the changing ownership of the cartridges are controlled from a primary location to a secondary location. The production site is moved for the cartridges. The ownership of the cartridges is waived. Access is allowed to the cartridges. Additional data is written and replicated using resources of the cartridges.Type: GrantFiled: February 27, 2013Date of Patent: November 18, 2014Assignee: International Business Machines CorporationInventors: Shay H. Akirav, Aviv Caro, Ofer Leneman, Itay Maoz, Uri Shmueli, Tzafrir Z. Taub
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Patent number: 8880482Abstract: Various embodiments for replicating deduplicated data using a processor device are provided. A block of the deduplicated data, created in a source repository, is assigned a global block identifier (ID) unique in a grid set inclusive of the source repository. The global block ID is generated using at least one unique identification value of the block, a containing grid of the grid set, and the source repository. The global block ID is transmitted from the source repository to a target repository. If the target repository determines the global block ID is associated with an existing block of the deduplicated data located within the target repository, the block is not transmitted to the target repository during a subsequent replication process.Type: GrantFiled: January 2, 2013Date of Patent: November 4, 2014Assignee: International Business Machines CorporationInventors: Shay H. Akirav, Lior Aronovich, Ron Asher, Yariv Bachar, Ariel J. Ish-Shalom, Ofer Leneman
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Patent number: 8850139Abstract: Exemplary system, and computer program product embodiments for changing ownership of cartridges, such as virtual cartridges between remotely located virtual tape libraries, are provided. In one embodiment, by way of example only, processes and protocols for the changing ownership of the cartridges are controlled from a primary location to a secondary location. The production site is moved for the cartridges. The ownership of the cartridges is waived. Access is allowed to the cartridges. Additional data is written and replicated using resources of the cartridges.Type: GrantFiled: May 11, 2011Date of Patent: September 30, 2014Assignee: International Business Machines CorporationInventors: Shay H. Akirav, Aviv Caro, Ofer Leneman, Itay Maoz, Uri Shmueli, Tzafrir Z. Taub
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Publication number: 20140279951Abstract: For digest retrieval based on similarity search in deduplication processing in a data deduplication system using a processor device in a computing environment, input data is partitioned into fixed sized data chunks. Similarity elements and digest block boundaries and digest values are calculated for each of the fixed sized data chunks. Matching similarity elements are searched for in a search structure containing the similarity elements for each of the fixed sized data chunks in a repository of data. Positions of similar data are located in the repository. The positions of the similar data are used to locate and load into the memory stored digest values and corresponding stored digest block boundaries of the similar data in the repository. The digest values and the corresponding digest block boundaries of the input data are matched with the stored digest values and the corresponding stored digest block boundaries to find data matches.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Shay H. AKIRAV, Lior ARONOVICH, Shira BEN-DOR, Michael HIRSCH, Ofer LENEMAN
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EFFICIENT CALCULATION OF SIMILARITY SEARCH VALUES AND DIGEST BLOCK BOUNDARIES FOR DATA DEDUPLICATION
Publication number: 20140279952Abstract: For efficient calculation of both similarity search values and boundaries of digest blocks in data deduplication, input data is partitioned into chunks, and for each chunk a set of rolling hash values is calculated. A single linear scan of the rolling hash values is used to produce both similarity search values and boundaries of the digest blocks of the chunk.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Shay H. AKIRAV, Lior ARONOVICH, Shira BEN-DOR, Michael HIRSCH, Ofer LENEMAN -
Patent number: 8806162Abstract: Visibility of a data storage entity on a first storage system is switched to a replicated data storage entity on a second storage system. Data from the data storage entity is replicated from the first storage system to the second storage system using a common serial number. The data storage entity is hidden from the first storage system by concealing the common serial number. An ejection of the data storage entity from the first storage system is automated, and the replicated data storage entity is introduced to the second storage system.Type: GrantFiled: May 8, 2012Date of Patent: August 12, 2014Assignee: International Business Machines CorporationInventors: Shay H. Akirav, Shiri Alexander, Yariv Bachar, Evgeny Budilovsky, Elena Drobchenko, Asaf K. Ekshtein, Dov N. Hepner, Aharon Lazar, Ofer Leneman, Itay Maoz, Gil E. Paz, Tzafrir Z. Taub, Neville Yates
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Patent number: 8799596Abstract: Visibility of a data storage entity on a first storage system is switched to a replicated data storage entity on a second storage system. Data from the data storage entity is replicated from the first storage system to the second storage system using a common serial number. The data storage entity is hidden from the first storage system by concealing the common serial number. An ejection of the data storage entity from the first storage system is automated, and the replicated data storage entity is introduced to the second storage system.Type: GrantFiled: August 20, 2010Date of Patent: August 5, 2014Assignee: International Business Machines CorporationInventors: Shay H. Akirav, Shiri Alexander, Yariv Bachar, Evgeny Budilovsky, Elena Drobchenko, Asaf K. Ekshtein, Dov N. Hepner, Aharon Lazar, Ofer Lenaman, Itay Maoz, Gil E. Paz, Tzafrir Z. Taub, Neville Yates
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Publication number: 20140195495Abstract: Deduplicated data is packed in a self-contained deduplicated repository having unique data blocks with each being referenced by a globally unique identifier (GUID). The self-contained deduplicated repository has information regarding both deduplicated data files and the unique data blocks of each of the deduplicated data files and a master GUID list containing a location of each of the unique data blocks.Type: ApplicationFiled: November 7, 2013Publication date: July 10, 2014Applicant: International Business Machines CorporationInventors: Shay H. AKIRAV, Michael HIRSCH, Ofer LENEMAN
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Patent number: 8706994Abstract: Various embodiments for synchronization of source and replicated instances of sequential access storage components in a computing environment by a processor device are provided. A replication synchronization table (RST) of a source instance is updated at a source component with the compacted information. Based on the RST of the source instance and the RST of the replicated instance, data representative of a most recent position on the source component from which data should be transmitted to a replicated component to achieve a full synchronization is determined.Type: GrantFiled: January 17, 2013Date of Patent: April 22, 2014Assignee: International Business Machines CorporationInventors: Shay H. Akirav, Yariv Bachar, Elena Drobchenko, Samuel Krikler, Aharon Lazar, Itay Maoz, Dan Melamed, Gil E. Paz
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Publication number: 20140101114Abstract: Methods, computer systems, and computer program products for processing data a computing environment are provided. The computer environment for data deduplication storage receives a plurality of write operations for deduplication storage of the data. The data is buffered in a plurality of buffers with overflow temporarily stored to a memory hierarchy when the data received for deduplication storage is sequential or non sequential. The data is accumulated and updated in the plurality of buffers per a data structure, the data structure serving as a fragment map between the plurality of buffers and a plurality of user file locations. The data is restructured in the plurality of buffers to form a complete sequence of a required sequence size. The data is provided as at least one stream to a stream-based deduplication algorithm for processing and storage.Type: ApplicationFiled: October 9, 2012Publication date: April 10, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Shay H. AKIRAV, Ron EDELSTEIN, Michael HIRSCH, Ariel J. ISH-SHALOM, Liran LOYA, Itai TZUR
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Publication number: 20140089269Abstract: Expired files in the deduplicating virtual media are selectively erased using a backup application for notifying a backup repository of which expired files are no longer required. The space of the expired files is reclaimed for reuse. Virtual space of the expired files is reserved for allowing the backup application to seek past the reclaimed space to subsequent data in the deduplicating virtual media.Type: ApplicationFiled: September 24, 2012Publication date: March 27, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Shay H. AKIRAV, Michael HIRSCH
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Publication number: 20140089275Abstract: Expired files in the deduplicating virtual media are selectively erased using a backup application for notifying a backup repository of which expired files are no longer required. The space of the expired files is reclaimed for reuse. Virtual space of the expired files is reserved for allowing the backup application to seek past the reclaimed space to subsequent data in the deduplicating virtual media.Type: ApplicationFiled: October 29, 2013Publication date: March 27, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Shay H. AKIRAV, Michael HIRSCH
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Publication number: 20140074781Abstract: Subsequent to a storage operation performed on the source instance by a source component, a synchronization message is sent to a replicated component for the replicated instance. The synchronization message is stored locally in a persistent storage location associated with the source component along with an indicator representative of a time the storage operation was performed. Pursuant to receipt of the synchronization message by the replicated component, the replicated component is updated to a dirty state to indicate a lack of full synchronization between the source and replicated instances.Type: ApplicationFiled: February 27, 2013Publication date: March 13, 2014Inventors: Shay H. AKIRAV, Evgeny BUDILOVSKY, Elena DROBCHENKO, Aharon LAZAR, Ofer LENEMAN, Itay MAOZ, Gil E. PAZ
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Patent number: 8671308Abstract: Exemplary system, and computer program product embodiments for optimizing disaster recovery systems during takeover operations are provided. In one embodiment, by way of example only, a flag is set in a replication grid manager to identify replication grid members to consult in a reconciliation process for resolving intersecting and non-intersecting data amongst the disaster recovery systems for a takeover operation. The replication grid members are consulted for the takeover operation to accommodate a coordination of an ownership synchronization process for cartridges not distributed on-time to the replication grid members. Additional system and computer program product embodiments are disclosed and provide related advantages.Type: GrantFiled: May 2, 2011Date of Patent: March 11, 2014Assignee: International Business Machines CorporationInventors: Shay H. Akirav, Aviv Caro, Itay Maoz, Gil E. Paz, Uri Shmueli, Tzafrir Z. Taub
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Patent number: 8656215Abstract: Various embodiments for disaster recovery (DR) production takeover in a computing environment by a processor device are provided. If, for a designated storage system operable in the computing environment, a takeover operation may be executed, and a DR storage system has validly replaced the designated storage system using a replacement process, a withdrawal of a DR mode of operation is performed, and ownership of at least one storage device operable in the computing environment is transferred to the DR storage system. The replacement process authorizes the DR storage system to transfer the ownership while withdrawn from the DR mode of operation.Type: GrantFiled: February 12, 2013Date of Patent: February 18, 2014Assignee: International Business Machines CorporationInventors: Shay H. Akirav, Yariv Bachar, Aviv Caro, Dov N. Hepner, Ofer Leneman, Gil E. Paz, Tzafrir Z. Taub
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Publication number: 20130297971Abstract: Pursuant to execution of a predetermined failback policy, if a storage device is not preexistent in a source storage system operable in the computing environment, and an owner of the storage device is one of a DR storage system and a storage system having previously withdrawn from a replication grid, and the DR storage system has authorization to transfer ownership of the storage device by a replacement operation, and an instance of the storage device is replicated to the source storage system to generate a replicated instance of the storage device on the source storage system.Type: ApplicationFiled: July 9, 2013Publication date: November 7, 2013Inventors: Shay H. AKIRAV, Yariv BACHAR, Evgeny BUDILOVSKY, Aviv CARO, Elena DROBCHENKO, Dov N. HEPNER, Aharon LAZAR, Ofer LENEMAN, Itay MAOZ, Gil E. PAZ, Tzafrir Z. TAUB
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Patent number: 8549348Abstract: For coordinated disaster recovery, a reconciliation process is performed for resolving intersecting and non-intersecting data amongst disaster recovery systems for takeover operations. An ownership synchronization process is coordinated for replica cartridges via the reconciliation process at the disaster recovery systems. The disaster recovery systems continue as a replication target for source systems and as a backup target for local backup applications.Type: GrantFiled: June 26, 2012Date of Patent: October 1, 2013Assignee: International Business Machines CorporationInventors: Shay H. Akirav, Aviv Caro, Itay Maoz, Gil E. Paz, Uri Shmueli, Tzafrir Z. Taub
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Patent number: 8533412Abstract: A replication synchronization table (RST) is configured for the source instance. The RST is adapted for recording compacted information for at least one of a truncate and an erase operation applied on the source instance. The RST of the source instance is updated at a source component with the compacted information. The updated RST is transmitted from the source instance to the replicated instance. Based on the RST of the source instance and the RST of the replicated instance, data representative of a most recent position on the source component from which data should be transmitted to a replicated component to achieve a full synchronization is determined.Type: GrantFiled: April 27, 2012Date of Patent: September 10, 2013Assignee: International Business Machines CorporationInventors: Shay H. Akirav, Yariv Bachar, Elena Drobchenko, Samuel Krikler, Aharon Lazar, Itay Maoz, Dan Melamed, Gil E. Paz
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Publication number: 20130232299Abstract: Exemplary method, system, and computer program product embodiments for changing ownership of cartridges, such as virtual cartridges between remotely located virtual tape libraries, are provided. In one embodiment, by way of example only, processes and protocols for the changing ownership of the cartridges are controlled from a primary location to a secondary location. The production site is moved for the cartridges. The ownership of the cartridges is waived. Access is allowed to the cartridges. Additional data is written and replicated using resources of the cartridges.Type: ApplicationFiled: February 27, 2013Publication date: September 5, 2013Inventors: Shay H. AKIRAV, Aviv CARO, Ofer LENEMAN, Itay MAOZ, Uri SHMUELI, Tzafrir Z. TAUB
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Patent number: 8522068Abstract: For coordinated disaster recovery, a reconciliation process is performed for resolving intersecting and non-intersecting data amongst disaster recovery systems for takeover operations. An ownership synchronization process is coordinated for replica cartridges via the reconciliation process at the disaster recovery systems. The disaster recovery systems continue as a replication target for source systems and as a backup target for local backup applications.Type: GrantFiled: May 2, 2011Date of Patent: August 27, 2013Assignee: International Business Machines CorporationInventors: Shay H. Akirav, Aviv Caro, Itay Maoz, Gil E. Paz, Uri Shmueli, Tzafrir Z. Taub