Patents by Inventor Duo CHEN
Duo 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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Publication number: 20220291959Abstract: An activity scheduling method based on a high response ratio includes steps of: setting basic software and hardware information, an activity queue, a user authority, and a user weight factor through an administrator terminal; wherein the user weight factor comprises: a user weight factor dynamic value, a user weight factor quantity value, and a user weight factor cooling time; manually choosing whether to adopt the user weight factor for an activity through a user terminal, and then submitting the activity; and entering an activity queuing stage of the user terminal, determining an activity priority of the user terminal according to a scheduling method, and running the activity in a descending order of the activity priority. The activity scheduling method allows the system to determine and run the current urgent and important activities without manual intervention in software and hardware resources.Type: ApplicationFiled: May 31, 2022Publication date: September 15, 2022Inventors: Yue Wang, Yang Chen, Liangxu Zhang, Zhe Chen, Bing Li, Duo Chen, Ye Li, Chunhua Lu
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Publication number: 20220215987Abstract: A cable includes: a pair of wires including two inner conductors and a respective insulating layer covering each of the two inner conductors; a first shielding layer covering the pair of wires; a second shielding layer covering the first shielding layer; and an outer coating layer covering the second shielding layer, wherein the insulation layer is covered with a sheath layer that is simultaneously extruded and formed, and the sheath layer covers the wires so that the two wires abut each other in parallel.Type: ApplicationFiled: December 25, 2021Publication date: July 7, 2022Inventors: DUO CHEN, JUAN ZHENG, LU-YU CHANG
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Patent number: 11074018Abstract: Embodiments include a load calculator, a workload analyzer, and a decision module. The load calculator generates an input/output (IO) record for an asset. The IO record includes a count of read operations and write operations corresponding to the asset from each of a plurality of sites. The workload analyzer collects the IO record and generates at least one of a write threshold and a read threshold. The decision module generates a request for at least one of a promotion and a copy of the asset in response to a determination that an operation has reached at least one of the write threshold and the read threshold for the asset.Type: GrantFiled: April 6, 2017Date of Patent: July 27, 2021Assignee: International Business Machines CorporationInventors: Duo Chen, Min Fang, Da Liu, Jinyi Pu, Jiang Yu
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Patent number: 11036430Abstract: Computer software that adjusts a performance capability of a storage volume by (i) determining a current storage volume to store data having a workload pattern, wherein a cycle of the workload pattern includes a hot period and a cold period, (ii) determining a time limit window of the current storage volume, wherein the time limit window is a shortest time window within which performance capability of the current storage volume is to be kept without adjustment, (iii) determining a low performance period of the current storage volume corresponding to the cold period, and (iv) in response to the low performance period being greater than or equal to the time limit window, reducing the performance capability of the current storage volume during the low performance period.Type: GrantFiled: June 24, 2019Date of Patent: June 15, 2021Assignee: International Business Machines CorporationInventors: Long Wen Lan, Yang Liu, Duo Chen
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Publication number: 20210098156Abstract: A cable includes: a core wire including an inner conductor and an insulating layer around the inner conductor by extrusion molding; a shielding layer covering the core wire; and an outer insulating layer covering the shielding layer; wherein the shielding layer is silver-plated copper foil, and there is no insulating layer between the core wire and the silver-plated copper foil.Type: ApplicationFiled: September 25, 2020Publication date: April 1, 2021Inventors: DUO CHEN, JUAN ZHENG, LU-YU CHANG
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Patent number: 10956084Abstract: According to one embodiment, a method, computer system, and computer program product for adjusting tiering based on operation types in a multi-tier storage system is provided. The present invention may include retrieving an extent to be managed and operations associated with the extent; analyzing the operations of the extent to determine an IO pattern associated with the extent; receiving a list of storage devices within the multi-tier storage system; querying each storage device of the storage devices for suitable pattern types; selecting, based on the querying and the IO pattern associated with the extent, a suitable storage device; and transferring the extent to the suitable storage device.Type: GrantFiled: May 4, 2018Date of Patent: March 23, 2021Assignee: International Business Machines CorporationInventors: Alexander H. Ainscow, Duo Chen, John M. Clifton, Kushal Patel, Sarvesh Patel
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Publication number: 20200401343Abstract: Computer software that adjusts a performance capability of a storage volume by (i) determining a current storage volume to store data having a workload pattern, wherein a cycle of the workload pattern includes a hot period and a cold period, (ii) determining a time limit window of the current storage volume, wherein the time limit window is a shortest time window within which performance capability of the current storage volume is to be kept without adjustment, (iii) determining a low performance period of the current storage volume corresponding to the cold period, and (iv) in response to the low performance period being greater than or equal to the time limit window, reducing the performance capability of the current storage volume during the low performance period.Type: ApplicationFiled: June 24, 2019Publication date: December 24, 2020Inventors: Long Wen Lan, Yang Liu, Duo Chen
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Patent number: 10838650Abstract: The system includes a data synchronization module and a heat data module. The data synchronization module is configured to communicate with a first storage volume and a second storage volume to provide a backup for the first storage volume by synchronizing information from the first storage volume to the second storage volume. The information includes at least one of data chunks, heat map data, and first metadata relating to the first storage volume. The heat data module is coupled to the second storage volume to read the first metadata and the heat map data and adjust a location of at least one of the data chunks in the second storage volume based on the heat map data.Type: GrantFiled: August 23, 2018Date of Patent: November 17, 2020Assignee: International Business Machines CorporationInventors: Duo Chen, Min Fang, Da Liu, Jinyi Pu
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Patent number: 10782913Abstract: A system, method, and program product are disclosed for asynchronous remote copy. One method includes transmitting a write request to a remote primary storage cluster for an asynchronous remote copy operation. The method also includes creating an entry in a write record stored in the local memory, the entry comprising a data consistency value, and removing the entry from the write record in response to receiving an acknowledgement from a remote secondary storage cluster that the asynchronous remote copy operation is completed.Type: GrantFiled: September 14, 2018Date of Patent: September 22, 2020Assignee: International Business Machines CorporationInventors: Duo Chen, Jialin Feng, Dan Liu, Yuan Li, Ning Min Zhang
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Patent number: 10678456Abstract: This disclosure provides a method, a computing system and a computer program product for managing storage capacity usage in a storage system. For each of a plurality of logical storage arrays in the storage system, a Remaining Time Buffer (RTB) measure indicating time to use up respective free space currently available to the logical storage array is calculated. Respective free space currently available to each of one or more of the plurality of logical storage arrays is adjusted, so that the RTB measures of the one or more logical storage arrays satisfy a threshold.Type: GrantFiled: September 28, 2018Date of Patent: June 9, 2020Assignee: International Business Machines CorporationInventors: Duo Chen, Da Liu, Min Fang
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Publication number: 20200104065Abstract: This disclosure provides a method, a computing system and a computer program product for managing storage capacity usage in a storage system. For each of a plurality of logical storage arrays in the storage system, a Remaining Time Buffer (RTB) measure indicating time to use up respective free space currently available to the logical storage array is calculated. Respective free space currently available to each of one or more of the plurality of logical storage arrays is adjusted, so that the RTB measures of the one or more logical storage arrays satisfy a threshold.Type: ApplicationFiled: September 28, 2018Publication date: April 2, 2020Inventors: Duo Chen, Da Liu, Min Fang
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Patent number: 10564881Abstract: Embodiments of the present disclosure relate to data management in a multitier storage system (MSS), the MSS comprises a storage virtualization controller (SVC) having at least one storage pool, and the storage pool comprises at least one logic volume, and the at least one logic volume comprises at least one tier. In response to the completion of a data migration from a source physical space of a first tier to a destination physical space of a second tier in a logic volume of a first storage pool, it is determined there is a free physical space in the source physical space. In response to the result of the determination indicating there exists a free physical space and the source physical space being thin provisioned, the free physical space of the source physical space is released to the storage array by the SVC.Type: GrantFiled: May 31, 2018Date of Patent: February 18, 2020Assignee: International Business Machines CorporationInventors: Xue Qiang Zhou, Duo Chen, Kushal Patel, Sarvesh Patel
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Publication number: 20190369897Abstract: Embodiments of the present disclosure relate to data management in a multitier storage system (MSS), the MSS comprises a storage virtualization controller (SVC) having at least one storage pool, and the storage pool comprises at least one logic volume, and the at least one logic volume comprises at least one tier. In response to the completion of a data migration from a source physical space of a first tier to a destination physical space of a second tier in a logic volume of a first storage pool, it is determined there is a free physical space in the source physical space. In response to the result of the determination indicating there exists a free physical space and the source physical space being thin provisioned, the free physical space of the source physical space is released to the storage array by the SVC.Type: ApplicationFiled: May 31, 2018Publication date: December 5, 2019Inventors: XUE QIANG ZHOU, Duo Chen, Kushal Patel, Sarvesh Patel
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Publication number: 20190339903Abstract: According to one embodiment, a method, computer system, and computer program product for adjusting tiering based on operation types in a multi-tier storage system is provided. The present invention may include retrieving an extent to be managed and operations associated with the extent; analyzing the operations of the extent to determine an IO pattern associated with the extent; receiving a list of storage devices within the multi-tier storage system; querying each storage device of the storage devices for suitable pattern types; selecting, based on the querying and the IO pattern associated with the extent, a suitable storage device; and transferring the extent to the suitable storage device.Type: ApplicationFiled: May 4, 2018Publication date: November 7, 2019Inventors: Alexander H. Ainscow, Duo Chen, John M. Clifton, Kushal Patel, Sarvesh Patel
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Publication number: 20190063798Abstract: A temperature control system for cryogenic tissue embedding belongs to the technical field of cryogenic tissue embedding of biological samples, which in particular relates to a temperature control system for cryogenic tissue embedding. The present invention provides a temperature control system for cryogenic tissue embedding with high operation efficiency and good use effects. The present invention comprises a heating and cooling semiconductor element and a control circuit. A control signal output port of the control circuit is connected to a control signal input port of the heating and cooling semiconductor element, and a detection signal input port of the control circuit is connected to a detection signal output port of a temperature sensor that detects the temperature of the heating and cooling semiconductor element. The control circuit comprises a CPU, a power conversion part, a system control part, a memory, a system feedback part, a display part, a Bluetooth part, and a heat-dissipation control part.Type: ApplicationFiled: March 18, 2018Publication date: February 28, 2019Inventors: Ruiqun Qi, Xinghua Gao, Hong-Duo Chen
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Patent number: 10216592Abstract: Performing failover processing between a production host and a backup host, a storage system is connected to the production host and the backup host. In response to a failure of the production host, metadata is obtained of data blocks that have been cached from an elastic space located in a fast disk of the storage system. A storage capacity of the elastic space is expanded. Data blocks are obtained to which the metadata corresponds according to the metadata and the storage capacity of the expanded elastic space, and storing the same in the expanded elastic space. In response the backup host requesting the data blocks to which the metadata corresponds, and the data blocks to which the metadata corresponds have already been stored in the expanded elastic space, data blocks are obtained to which the metadata corresponds from the expanded elastic space and transmitting the same to the backup host.Type: GrantFiled: January 31, 2017Date of Patent: February 26, 2019Assignee: International Business Machines CorporationInventors: Yande Chang, Duo Chen, Min Fang
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Publication number: 20190042099Abstract: A system, method, and program product are disclosed for asynchronous remote copy. One method includes transmitting a write request to a remote primary storage cluster for an asynchronous remote copy operation. The method also includes creating an entry in a write record stored in the local memory, the entry comprising a data consistency value, and removing the entry from the write record in response to receiving an acknowledgement from a remote secondary storage cluster that the asynchronous remote copy operation is completed.Type: ApplicationFiled: September 14, 2018Publication date: February 7, 2019Inventors: Duo Chen, Jialin Feng, Dan Liu, Yuan Li, Ning Min Zhang
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Publication number: 20180364913Abstract: The system includes a data synchronization module and a heat data module. The data synchronization module is configured to communicate with a first storage volume and a second storage volume to provide a backup for the first storage volume by synchronizing information from the first storage volume to the second storage volume. The information includes at least one of data chunks, heat map data, and first metadata relating to the first storage volume. The heat data module is coupled to the second storage volume to read the first metadata and the heat map data and adjust a location of at least one of the data chunks in the second storage volume based on the heat map data.Type: ApplicationFiled: August 23, 2018Publication date: December 20, 2018Inventors: Duo Chen, Min Fang, Da Liu, Jinyi Pu
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Patent number: 10140030Abstract: One or more processors migrate an amount of cloud data from a non-volatile memory to a volatile cache memory. One or more processors partition the amount of cloud data into a plurality of objects of a size that allow for a satisfactory read/write throughput performance. One or more processors analyze the plurality of objects for input/output performance over a time period. One or more processors migrate a first portion of the plurality of objects back to the non-volatile memory, wherein the first portion of the plurality of objects exhibit a first input/output performance lower than a first threshold value.Type: GrantFiled: November 2, 2015Date of Patent: November 27, 2018Assignee: International Business Machines CorporationInventors: Duo Chen, Min Fang, Guo Feng Zhu
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Patent number: 10133510Abstract: A system, method, and program product are disclosed for asynchronous remote copy. One method includes transmitting a write request to a remote primary storage cluster for an asynchronous remote copy operation. The method also includes creating an entry in a write record stored in the local memory, the entry comprising a data consistency value, and removing the entry from the write record in response to receiving an acknowledgement from a remote secondary storage cluster that the asynchronous remote copy operation is completed.Type: GrantFiled: January 19, 2017Date of Patent: November 20, 2018Assignee: International Business Machines CorporationInventors: Duo Chen, Jialin Feng, Dan Liu, Yuan Li, Ning Min Zhang