Patents by Inventor Shemer Schwartz

Shemer Schwartz 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).

  • Patent number: 9462077
    Abstract: One or more parameters of a received data service request may be compared against a lookup table. Based on one or more priority values stored in the lookup table and associated with the one or more request parameters, the data service request may be assigned a priority level.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: October 4, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ofir Zohar, Yaron Revah, Haim Helman, Dror Cohen, Shemer Schwartz
  • Patent number: 8850141
    Abstract: Disclosed is a data processing and/or storage system. The data processing and/or storage system may include at least two interfaces, wherein each of the at least two interfaces includes a non-dedicated communication port for communicating data to and form external data systems or clients based on a rule base.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: September 30, 2014
    Assignee: International Business Machines Corporation
    Inventors: Ofir Zohar, Haim Helman, Dror Cohen, Shemer Schwartz, Yaron Revah, Efri Zeidner
  • Patent number: 8805902
    Abstract: Various embodiments of the invention relate to an apparatus and a method of managing a snapshot storage pool (SSP) associated with a storage unit of a distributed data storage system. One apparatus includes a logic module and a processor. The logic module is adapted to provide a threshold corresponding to a ratio between a current amount of storage resources used for storing snapshots in the SSP and a total storage capacity defined for the SSP. The processor is adapted to trigger an action that may be effective for managing the SSP in response to the amount of storage resources used for storing snapshots in the SSP crossing the threshold.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: August 12, 2014
    Assignee: International Business Machines Corporation
    Inventors: Yaron Revah, Shemer Schwartz, Efri Zeidner, Ofir Zohar
  • Patent number: 8473939
    Abstract: A plurality of upgraded components associated with an upgraded storage subsystem replaces a plurality of existing components associated with an existing storage subsystem. Support for a verify I/O command is created. A target volume is created in the upgraded storage subsystem having a same volume identification as a source volume. For a command received on the at least one of the plurality of upgraded components, the verify I/O command is invoked on at least one of a comparable one of the plurality of existing components. If the command is verified, the command is driven. The at least one of the plurality of upgraded components disguises a true volume identification of the target volume from the at least one of the plurality of existing components.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: June 25, 2013
    Assignee: International Business Machines Corporation
    Inventors: Haim Helman, Kariel Sandler, Shemer Schwartz, Moshe Yanai
  • Patent number: 8468517
    Abstract: A plurality of upgraded components associated with an upgraded storage subsystem replaces a plurality of existing components associated with an existing storage subsystem. Support for a verify I/O command is created. A target volume is created in the upgraded storage subsystem having a same volume identification as a source volume. For a command received on the at least one of the plurality of upgraded components, the verify I/O command is invoked on at least one of a comparable one of the plurality of existing components. If the command is verified, the command is driven. The at least one of the plurality of upgraded components disguises a true volume identification of the target volume from the at least one of the plurality of existing components.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: June 18, 2013
    Assignee: International Business Machines Corporation
    Inventors: Haim Helman, Kariel Sandler, Shemer Schwartz, Moshe Yanai
  • Patent number: 8386744
    Abstract: A method for migrating data to a mass storage system, including receiving an incoming data partition for storage in the mass storage system and allocating logical storage for the incoming data partition in the mass storage system. The method further includes making a determination that the incoming data partition includes only zero data, and, in response to the determination, inhibiting physical storage of the incoming data partition in the mass storage system while maintaining the allocated logical storage for the incoming data partition.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: February 26, 2013
    Assignee: International Business Machines Corporation
    Inventors: Ofir Zohar, Shemer Schwartz, Haim Helman, Ehood Garmiza, Omri Palmon, Efri Zeidner
  • Patent number: 8301670
    Abstract: Various embodiments of the invention relate to an apparatus and a method of managing a snapshot storage pool (SSP) associated with a storage unit of a distributed data storage system. According to some embodiments of the invention, the apparatus may include a logic module and a processor. The logic module may be adapted to provide a threshold corresponding to a ratio between a current amount of storage resources used for storing snapshots in the SSP and a total storage capacity defined for the SSP. The processor may be adapted to trigger an action that may be effective for managing the SSP in response to the amount of storage resources used for storing snapshots in the SSP crossing the threshold.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: October 30, 2012
    Assignee: International Business Machines Corporation
    Inventors: Yaron Revah, Shemer Schwartz, Efri Zeidner, Ofir Zohar
  • Publication number: 20120210314
    Abstract: A plurality of upgraded components associated with an upgraded storage subsystem replaces a plurality of existing components associated with an existing storage subsystem. Support for a verify I/O command is created. A target volume is created in the upgraded storage subsystem having a same volume identification as a source volume. For a command received on the at least one of the plurality of upgraded components, the verify I/O command is invoked on at least one of a comparable one of the plurality of existing components. If the command is verified, the command is driven. The at least one of the plurality of upgraded components disguises a true volume identification of the target volume from the at least one of the plurality of existing components.
    Type: Application
    Filed: April 19, 2012
    Publication date: August 16, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Haim HELMAN, Kariel SANDLER, Shemer SCHWARTZ, Moshe YANAI
  • Patent number: 8214588
    Abstract: A method for data mirroring including receiving a sequence of transactions at a first storage node from a host indicating data to be stored by the node, storing the data therein, and delineating a first batch of the transactions. The node returns to the host an acknowledgment of having stored the data, delineates a second batch of the transactions received subsequent to the acknowledgment, and conveys the data to a second storage node. The first node also conveys to the second node a first record of the transactions in the first batch and a second record of the transactions in the second batch, and the data are stored in the second node responsively to the first and second records, so that all data indicated by the transactions in the first batch are stored by the second node prior to storing data indicated by the transactions in the second batch.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: July 3, 2012
    Assignee: International Business Machines Corporation
    Inventors: Ofir Zohar, Yaron Revah, Haim Helman, Dror Cohen, Shemer Schwartz
  • Publication number: 20120109916
    Abstract: Various embodiments of the invention relate to an apparatus and a method of managing a snapshot storage pool (SSP) associated with a storage unit of a distributed data storage system. According to some embodiments of the invention, the apparatus may include a logic module and a processor. The logic module may be adapted to provide a threshold corresponding to a ratio between a current amount of storage resources used for storing snapshots in the SSP and a total storage capacity defined for the SSP. The processor may be adapted to trigger an action that may be effective for managing the SSP in response to the amount of storage resources used for storing snapshots in the SSP crossing the threshold.
    Type: Application
    Filed: September 30, 2011
    Publication date: May 3, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yaron REVAH, Shemer SCHWARTZ, Efri ZEIDNER, Ofir ZOHAR
  • Patent number: 8069191
    Abstract: Some embodiments of the invention relate to an apparatus and a method of managing a snapshot storage pool (SSP) associated with a storage unit of a distributed data storage system. According to some embodiments of the invention, the apparatus may include a logic module and a controller. The logic module may be adapted to provide a threshold corresponding to a ratio between a current amount of storage resources used for storing snapshots in the SSP and a total storage capacity defined for the SSP. The controller may be adapted to trigger an action which may be effective for managing the SSP in response to the amount of storage resources used for storing snapshots in the SSP crossing the threshold.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: November 29, 2011
    Assignee: International Business Machines Corporation
    Inventors: Yaron Revah, Shemer Schwartz, Efri Zeidner, Ofir Zohar
  • Patent number: 8015437
    Abstract: A method is disclosed for operating a data storage system having one or more network interfaces and a plurality of data storage nodes configured to provide redundant storage locations. The method includes storing a set of node partitions on a given storage node of the plurality of data storage nodes. The method also includes, following a recovery by the given storage node from a malfunction, making a determination for a node partition in the set whether the node partition is current or noncurrent, and processing the node partition according to the determination.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: September 6, 2011
    Assignee: International Business Machines Corporation
    Inventors: Ofir Zohar, Haim Helman, Shemer Schwartz, Efri Zeidner, Kariel Sendler, Shai Gross
  • Patent number: 8010753
    Abstract: A method for operating a storage system, consisting of performing an allocation of respective partitions of a physical storage resource of the storage system to respective hosts of the storage system. The method also includes changing the allocation while permitting the respective hosts of the storage system to access the physical storage resource.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: August 30, 2011
    Assignee: International Business Machines Corporation
    Inventors: Ofir Zohar, Haim Helman, Dror Cohen, Shemer Schwartz, Kariel Sendler, Efri Zeidner
  • Patent number: 7934120
    Abstract: A method for storing data blocks, including forming the data blocks into groups comprising N·M data blocks, where N and M are different positive integers. For every group, the N·M data blocks are assigned to correspond to elements of an array comprising N rows and M columns. A respective parity block is calculated for each of the N rows and M columns, to form (N+M) parity blocks. The resulting (N+M) parity blocks and N·M data blocks are stored in respective storage devices.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: April 26, 2011
    Assignee: International Business Machines Corporation
    Inventors: Ofir Zohar, Efri Zeidner, Shemer Schwartz, Yair Chuchem
  • Publication number: 20110083034
    Abstract: A method is disclosed for operating a data storage system having one or more network interfaces and a plurality of data storage nodes configured to provide redundant storage locations. The method includes storing a set of node partitions on a given storage node of the plurality of data storage nodes. The method also includes, following a recovery by the given storage node from a malfunction, making a determination for a node partition in the set whether the node partition is current or noncurrent, and processing the node partition according to the determination.
    Type: Application
    Filed: December 14, 2010
    Publication date: April 7, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ofir ZOHAR, Haim HELMAN, Shemer SCHWARTZ, Efri ZEIDNER, Kariel SENDLER, Shai GROSS
  • Patent number: 7904747
    Abstract: A method is disclosed for operating a data storage system having one or more network interfaces and a plurality of data storage nodes configured to provide redundant storage locations. The method includes storing a set of node partitions on a given storage node of the plurality of data storage nodes. The method also includes, following a recovery by the given storage node from a malfunction, making a determination for a node partition in the set whether the node partition is current or noncurrent, and processing the node partition according to the determination.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: March 8, 2011
    Assignee: International Business Machines Corporation
    Inventors: Ofir Zohar, Haim Helman, Shemer Schwartz, Efri Zeidner, Kariel Sendler, Shai Gross
  • Patent number: 7877547
    Abstract: A system, method and circuit for efficiently managing a cache storage device. A cache storage device may include a cache management module. The cache management module may be adapted to generate a management unit and to associate the management unit with new data that is to be written into the cache. The cache management module may be further adapted to assign two or more allocation units for each management unit, to store the new data in the cache. A cache management module may include a management unit module. The management unit module may be adapted to generate management units associated with predefined global cache management functions. The cache management module may further include an allocation unit module in communication with the management unit module. The allocation unit module may be adapted to assign allocation units for storing data written into the cache.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: January 25, 2011
    Assignee: International Business Machines Corporation
    Inventors: Ofir Zohar, Yaron Revah, Haim Helman, Dror Cohen, Shemer Schwartz
  • Patent number: 7877546
    Abstract: Upon receiving a request for one or a set of data blocks associated with a given data segment, a disk cache controller may retrieve into cache the some part of the entire data segment from a disk. Each data segment on a disk may include a fixed number of data blocks, and all data segments may include the same number of data blocks. Data segments may be dynamically defined and their locations and sizes may vary from segment to segment. Data segments may be defined when data is written to the disk, or may be defined at a later point. A table associated with a cache controller may store information as to the physical location or address on a disk of the starting point and/or size of each data segment.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: January 25, 2011
    Assignee: International Business Machines Corporation
    Inventors: Ofir Zohar, Yaron Revah, Haim Helman, Dror Cohen, Shemer Schwartz
  • Patent number: 7870334
    Abstract: A storage system, consisting of one or more data storage logical units (LUs) formed in physical media. The LUs are adapted to receive command and respond to the commands to store and recall data. The storage system further includes a plurality of ports, each port being adapted to maintain a respective LU command queue for each of the LUs, such that upon receiving a command directed to one of the LUs, the port places the received command in the respective LU command queue. The port converts the received command to one or more converted commands at least some of which are directed to the physical media of the one of the LUs. The port then conveys the commands directed to the physical media in an order determined by the respective LU command queue.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: January 11, 2011
    Assignee: International Business Machines Corporation
    Inventors: Ofir Zohar, Yaron Revah, Haim Helman, Dror Cohen, Shemer Schwartz
  • Publication number: 20100318981
    Abstract: Exemplary methods, systems, and computer program product embodiments for concurrent upgrade of a plurality of components in a storage subsystem are provided. A plurality of upgraded components associated with an upgraded storage subsystem replaces a plurality of existing components associated with an existing storage subsystem. Support for a verify I/O command is created. A target volume is created in the upgraded storage subsystem having a same volume identification as a source volume. For a command received on the at least one of the plurality of upgraded components, the verify I/O command is invoked on at least one of a comparable one of the plurality of existing components. If the command is verified, the command is driven. The at least one of the plurality of upgraded components disguises a true volume identification of the target volume from the at least one of the plurality of existing components.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 16, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Haim HELMAN, Kariel SANDLER, Shemer SCHWARTZ, Moshe YANAI