Patents by Inventor James Chien-Chiung Chen
James Chien-Chiung Chen 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: 8738821Abstract: Provided are a method for selecting a path comprising ports on primary and secondary clusters to use to transmit data at a primary volume to a secondary volume. A request is received to copy data from a primary storage location to a secondary storage location. A determination is made from a plurality of primary clusters of an owner primary cluster for the primary storage location, wherein the primary clusters are configured to access the primary storage location. A determination is made as to whether there is at least one port on the owner primary cluster providing an available path to the secondary storage location. One port on the owner primary cluster is selected to use to copy the data to the secondary storage location in response to determining that there is at least one port on the owner primary cluster available to transmit to the secondary storage location.Type: GrantFiled: November 18, 2005Date of Patent: May 27, 2014Assignee: International Business Machines CorporationInventors: Steven Edward Klein, Michael Thomas Benhase, James Chien-Chiung Chen, Minh-Ngoc Le Huynh
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Patent number: 8341366Abstract: Provided are a method, system, and article of manufacture for splitting writes between a storage controller and replication engine. A splitter executing in a storage controller manages access to primary volumes. An initialization command is received to communicate with a replication engine. A replication command is received for one primary volume and the primary volume is indicated as subject to replication. A write request is received to write data to a target primary volume of the primary volumes that is indicated as subject to the replication. The data in the write request is written to the target primary volume. The data in the write request is sent to the replication engine. The replication engine executes a copy services function associated with the target primary volume to write the data to a replication engine volume.Type: GrantFiled: January 23, 2012Date of Patent: December 25, 2012Assignee: International Business Machines CorporationInventors: Robert Francis Bartfai, Kenneth Wayne Boyd, James Chien-Chiung Chen, Kenneth Fairclough Day, III, Shachar Fienblit, Gregory Edward McBride, David W. Messina, Robert Bruce Nicholson, Gail Andrea Spear
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Publication number: 20120124310Abstract: Provided are a method, system, and article of manufacture for splitting writes between a storage controller and replication engine. A splitter executing in a storage controller manages access to primary volumes. An initialization command is received to communicate with a replication engine. A replication command is received for one primary volume and the primary volume is indicated as subject to replication. A write request is received to write data to a target primary volume of the primary volumes that is indicated as subject to the replication. The data in the write request is written to the target primary volume. The data in the write request is sent to the replication engine. The replication engine executes a copy services function associated with the target primary volume to write the data to a replication engine volume.Type: ApplicationFiled: January 23, 2012Publication date: May 17, 2012Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Robert Francis Bartfai, Kenneth Wayne Boyd, James Chien-Chiung Chen, Kenneth Fairclough Day, III, Shachar Fienblit, Gregory Edward McBride, David W. Messina, Robert Bruce Nicholson, Gail Andrea Spear
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Patent number: 8131957Abstract: Provided are a method, system, and article of manufacture for splitting writes between a storage controller and replication engine. A splitter executing in a storage controller manages access to primary volumes. An initialization command is received to communicate with a replication engine. A replication command is received for one primary volume and the primary volume is indicated as subject to replication. A write request is received to write data to a target primary volume of the primary volumes that is indicated as subject to the replication. The data in the write request is written to the target primary volume. The data in the write request is sent to the replication engine. The replication engine executes a copy services function associated with the target primary volume to write the data to a replication engine volume.Type: GrantFiled: August 16, 2007Date of Patent: March 6, 2012Assignee: International Business Machines CorporationInventors: Robert Francis Bartfai, Kenneth Wayne Boyd, James Chien-Chiung Chen, Kenneth Fairclough Day, III, Shachar Fienblit, Gregory Edward McBride, David W. Messina, Robert Bruce Nicholson, Gail Andrea Spear
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Patent number: 8024534Abstract: Provided are a method, system, and article of manufacture for a replication engine communicating with a splitter to split writes between a storage controller and replication engine. Communication is initiated with the splitter implemented in a storage controller managing access to primary volumes. A command is sent to the splitter to copy writes to one primary volume to the replication engine. Write data is received from the splitter to one of the primary volumes following the splitter receiving the command to copy the writes to the replication engine. A determination is made of a copy services function to use for the received data. The determined copy services function is invoked to transfer the received data to a secondary storage volume.Type: GrantFiled: August 16, 2007Date of Patent: September 20, 2011Assignee: International Business Machines CorporationInventors: Robert Francis Bartfai, Kenneth Wayne Boyd, James Chien-Chiung Chen, Kenneth Fairclough Day, III, Shachar Fienblit, Gregory Edward McBride, David W. Messina, Robert Bruce Nicholson, Gail Andrea Spear
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Patent number: 7979897Abstract: Provided are a system and article of manufacture for bidirectional data transfer. In certain embodiments a link layer login is sent from a first port to a second port. Subsequently, an application layer login is sent from the first port to the second port to establish a first data path, wherein the first data path is from the first port to the second port. Subsequently, another application layer login is sent from the second port to the first port to establish a second data path, wherein the second data path is from the second port to the first port. In certain other embodiments, a first data path is established from a first port to a second port. A determination is made at the first port, whether the second port has a second data path established from the second port to the first port. An application layer logout is sent from the first port to the second port, in response to determining that the second port has the second data path established from the second port to the first port.Type: GrantFiled: April 22, 2008Date of Patent: July 12, 2011Assignee: International Business Machines CorporationInventors: Steven Edward Klein, James Chien-Chiung Chen, Patricia Ching Lu, Minh-Ngoc Le Huynh
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Patent number: 7802029Abstract: Provided are a system and article of manufacture, wherein in certain embodiments an I/O command from a host is received at a first storage unit. An identifier is generated that identifies a destination to which the I/O command is to be transmitted from the first storage unit. The I/O command is augmented with the generated identifier at the first storage unit. The augmented I/O command is transmitted. In certain other embodiments, an I/O command is received at a storage unit, wherein the storage unit is associated with a storage unit identifier. A determination is made at the storage unit, whether the I/O command is associated with an identifier that identifies a destination for which the I/O command is intended. A further determination is made, at the storage unit, whether the identifier is the same as the storage unit identifier, in response to determining that the identifier associated with the I/O command identifies the destination for which the I/O command is intended.Type: GrantFiled: July 3, 2008Date of Patent: September 21, 2010Assignee: International Business Machines CorporationInventors: Michael Thomas Benhase, James Chien-Chiung Chen, Patricia Ching Lu, Frederick James Carberry, II
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Patent number: 7774571Abstract: Provided is a system, deployment and program for resource allocation unit queuing in which an allocation unit associated with a task is classified. An allocation unit freed as the task ends is queued for use by another task in a queue at a selected location within the queue in accordance with the classification of said allocation unit. In one embodiment, an allocation unit is queued at a first end of the queue if classified in a first class and is queued at a second end of the queue if classified in said second class. Other embodiments are described and claimed.Type: GrantFiled: December 10, 2008Date of Patent: August 10, 2010Assignee: International Business Machines CorporationInventors: Michael Thomas Benhase, Lawrence Carter Blount, James Chien-Chiung Chen, Juan Alonso Coronado, Roger Gregory Hathorn
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Patent number: 7756049Abstract: An apparatus, system, and method are provided for controlling link status changes across multiple independent control modules. The apparatus includes a copy services module configured to control multiple link adapters, each configured to establish multiple communication links between a source and a target storage device. The adapter transmits a link status change notification to the copy services module and starts a timer upon transmitting the link status change notification. The copy services module simultaneously processes link status change notifications from a plurality of communication links. The system includes a communications network and a plurality of storage devices having the above described apparatus.Type: GrantFiled: August 11, 2004Date of Patent: July 13, 2010Assignee: International Business Machines CorporationInventors: James Chien-Chiung Chen, Lourdes Magally Gee, Olympia Gluck, Richard Alan Schaeffer, David Brent Schreiber, William Henry Travis, Gabriel G. Walder
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Patent number: 7673173Abstract: Provided are a method, system, and program monitoring paths between a first controller and second controller. A determination is made as to whether one path has been unavailable for a predetermined time period in response to detecting that the path is unavailable. Indication is made that the path is in a first failed state if the path has been unavailable for more than the predetermined time period and indication is made that the path is in a second failed state if the path has not been unavailable for the predetermined time period.Type: GrantFiled: September 17, 2008Date of Patent: March 2, 2010Assignee: International Business Machines CorporationInventors: James Chien-Chiung Chen, Chung Man Fung, Patricia Ching Lu, Minh-Ngoc Le Huynh
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Patent number: 7650385Abstract: Disclosed is a technique for assigning priorities. A request to manipulate data is received. A type of the request is determined. A priority is assigned to the request based on the type of the request.Type: GrantFiled: November 20, 2003Date of Patent: January 19, 2010Assignee: International Business Machines CorporationInventors: James Chien-Chiung Chen, Gail Andrea Spear, Minh-Ngoc Le Huynh, Chung Man Fung, Patricia Ching Lu, Dung Dang
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Patent number: 7627716Abstract: Provided are a method, system, and program for an adaptor to read and write to system memory. A plurality of blocks of data to write to storage are received at an adaptor. The blocks of data are added to a buffer in the adaptor. A determination is made of pages in a memory device and I/O requests are generated to write the blocks in the buffer to the determined pages, wherein two I/O requests are generated to write to one block split between two pages in the memory device. The adaptor executes the generated I/O requests to write the blocks in the buffer to the determined pages in the memory device.Type: GrantFiled: November 15, 2004Date of Patent: December 1, 2009Assignee: International Business Machines CorporationInventors: Michael Thomas Benhase, James Chien-Chiung Chen, Yu-Cheng Hsu, Matthew Joseph Kalos, Carol Spanel, Andrew Dale Walls
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Patent number: 7562137Abstract: A first device determines a possibility of an invalidation of a second device, wherein the first device is coupled to the second device via a fabric. A query is sent from the first device to validate the second device, in response to determining the possibility of the invalidation of the second device. A determination is made, at the first device, whether to continue I/O operations from the first device to the second device based on receiving a response to the query within a time period.Type: GrantFiled: November 20, 2003Date of Patent: July 14, 2009Assignee: Internatioal Business Machines CorporationInventors: Steven Edward Klein, James Chien-Chiung Chen, Patricia Ching Lu, Matthew Joseph Kalos
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Patent number: 7516356Abstract: Provided are a method for monitoring paths between a first controller and second controller. A determination is made as to whether one path has been unavailable for a predetermined time period in response to detecting that the path is unavailable. Indication is made that the path is in a first failed state if the path has been unavailable for more than the predetermined time period and indication is made that the path is in a second failed state if the path has not been unavailable for the predetermined time period.Type: GrantFiled: September 28, 2006Date of Patent: April 7, 2009Assignee: International Business Machines CorporationInventors: James Chien-Chiung Chen, Chung Man Fung, Patricia Chiung Lu, Minh-Ngoc Le Huynh
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Publication number: 20090089791Abstract: Provided is a system, deployment and program for resource allocation unit queuing in which an allocation unit associated with a task is classified. An allocation unit freed as the task ends is queued for use by another task in a queue at a selected location within the queue in accordance with the classification of said allocation unit. In one embodiment, an allocation unit is queued at a first end of the queue if classified in a first class and is queued at a second end of the queue if classified in said second class. Other embodiments are described and claimed.Type: ApplicationFiled: December 10, 2008Publication date: April 2, 2009Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Michael Thomas Benhase, Lawrence Carter Blount, James Chien-Chiung Chen, Juan Alonso Coronado, Roger Gregory Hathorn
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Publication number: 20090049252Abstract: Provided are a method, system, and article of manufacture for a replication engine communicating with a splitter to split writes between a storage controller and replication engine. Communication is initiated with the splitter implemented in a storage controller managing access to primary volumes. A command is sent to the splitter to copy writes to one primary volume to the replication engine. Write data is received from the splitter to one of the primary volumes following the splitter receiving the command to copy the writes to the replication engine. A determination is made of a copy services function to use for the received data. The determined copy services function is invoked to transfer the received data to a secondary storage volume.Type: ApplicationFiled: August 16, 2007Publication date: February 19, 2009Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Robert Francis Bartfai, Kenneth Wayne Boyd, James Chien-Chiung Chen, Kenneth Fairclough Day, III, Shachar Fienblit, Gregory Edward McBride, David W. Messina, Robert Bruce Nicholson, Gail Andrea Spear
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Publication number: 20090049251Abstract: Provided are a method, system, and article of manufacture for splitting writes between a storage controller and replication engine. A splitter executing in a storage controller manages access to primary volumes. An initialization command is received to communicate with a replication engine. A replication command is received for one primary volume and the primary volume is indicated as subject to replication. A write request is received to write data to a target primary volume of the primary volumes that is indicated as subject to the replication. The data in the write request is written to the target primary volume. The data in the write request is sent to the replication engine. The replication engine executes a copy services function associated with the target primary volume to write the data to a replication engine volume.Type: ApplicationFiled: August 16, 2007Publication date: February 19, 2009Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Robert Francis Bartfai, Kenneth Wayne Boyd, James Chien-Chiung Chen, Kenneth Fairclough Day, III, Shachar Fienblit, Gregory Edward McBride, David W. Messina, Robert Bruce Nicholson, Gail Andrea Spear
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Patent number: 7487319Abstract: Provided is a method, system, deployment and program for resource allocation unit queuing in which an allocation unit associated with a task is classified. An allocation unit freed as the task ends is queued for use by another task in a queue at a selected location within the queue in accordance with the classification of said allocation unit. In one embodiment, an allocation unit is queued at a first end of the queue if classified in a first class and is queued at a second end of the queue if classified in said second class. Other embodiments are described and claimed.Type: GrantFiled: November 18, 2004Date of Patent: February 3, 2009Assignee: International Business Machines CorporationInventors: Michael Thomas Benhase, Lawrence Carter Blount, James Chien-Chiung Chen, Juan Alonso Coronado, Roger Gregory Hathorn
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Publication number: 20090013099Abstract: Provided are a method, system, and program monitoring paths between a first controller and second controller. A determination is made as to whether one path has been unavailable for a predetermined time period in response to detecting that the path is unavailable. Indication is made that the path is in a first failed state if the path has been unavailable for more than the predetermined time period and indication is made that the path is in a second failed state if the path has not been unavailable for the predetermined time period.Type: ApplicationFiled: September 17, 2008Publication date: January 8, 2009Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: James Chien-Chiung Chen, Chung Man Fung, Patricia Ching Lu, Minh-Ngoc Le Huynh
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Patent number: 7464321Abstract: A method is disclosed to transfer information from a first information storage and retrieval system to a second information storage and retrieval system. The method provides a first information storage and retrieval system comprising a first track size and a plurality of first tracks, and a second information storage and retrieval system comprising a second track size and a plurality of second tracks. The method determines if the first track size is greater than the second track size. If the method determines that the first track size is greater than said second track size, then the method sets a ratio (R) equal to the first track size divided by the second track size, provides the (i)th first track from the first information storage and retrieval system to the second information storage and retrieval system, provides (R) second tracks, and maps the (i)th first track onto the (R) second tracks.Type: GrantFiled: November 18, 2004Date of Patent: December 9, 2008Assignee: International Business Machines CorporationInventors: Michael T. Benhase, James Chien-Chiung Chen, Chung Man Fung, Matthew J. Kalos, Patricia Ching Lu