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公开(公告)号：GB2578846B
公开(公告)日：2020-10-21
申请号：GB202000451
申请日：2018-07-24
Applicant: IBM
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公开(公告)号：GB2514982B
公开(公告)日：2019-11-20
申请号：GB201417800
申请日：2013-03-04
Applicant: IBM
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Patent Agency Ranking
公开(公告)号：GB2578846A
公开(公告)日：2020-05-27
申请号：GB202000451
申请日：2018-07-24
Applicant: IBM
Inventor： JOSHUA CRAWFORD , NEDLAYA YAZZIE FRANCISCO , GREGORY MCBRIDE , NICOLAS MARC CLAYTON , CAROL MELLGREN , THERESA MARY BROWN , MATTHEW WARD , THEODORE TIMOTHY HARRIS JR , DAMIAN TRUJILLO
Abstract: A primary storage controller for use with a host and a primary storage system at a first location, the primary storage system having a primary storage controller and at least one storage unit controlled by the primary storage controller and configured to store a plurality of data units, and a secondary storage system at a second location remote from the first location, the secondary storage system having a secondary storage controller and at least one storage unit controlled by the secondary storage controller and configured to store a plurality of data units, the primary storage controller comprising data replication logic which includes data mirroring logic, consistency group logic, snap copy generation logic, state determination logic and delay logic.
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公开(公告)号：GB2577022B
公开(公告)日：2020-08-12
申请号：GB201918847
申请日：2018-05-22
Applicant: IBM
Inventor： MATTHEW WARD , CAROL MELLGREN , THERESA MARY BROWN , JOSHUA CRAWFORD , NICOLAS MARC CLAYTON , GREGORY MCBRIDE
Abstract: Provided are a computer program product, system, and method for processing a space release command when mirroring data at a source storage to a target storage. A space release command is received to free a release space in the source storage while transferring changed data in a consistency group. A determination is made as to whether a transfer time to transfer remaining consistency group data in the consistency group for the release space that has not been transferred exceeds a response time to process a space release command. The remaining consistency group data in the release space is transferred to the target storage in response to determining that the transfer time does not exceed the response time. The release space for the space release command is freed in response to transferring the consistency group data in the release space to the target storage.
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公开(公告)号：GB2571871A
公开(公告)日：2019-09-11
申请号：GB201908513
申请日：2017-11-13
Applicant: IBM
Inventor： MATTHEW WARD , MARK LIPETS , ANTHONY CIARAVELLA , MICHAEL GAGNER , THERESA MARY BROWN , CAROL MELLGREN , THEODORE TIMOTHY HARRIS JR , GREGORY MCBRIDE , NICOLAS MARC CLAYTON
Abstract: Asynchronous local and remote generation of consistent first and second point-in-time snap copy volumes provides for generating in a primary system, a first point-in-time snap copy volume of a primary volume of the primary system, and generating in a secondary system, a second point-in-time snap copy volume utilizing a secondary volume in the secondary system. Mirror data from a first data unit(volume) to a second data unit at a remote location (610). Copy data of the first data unit to a third data unit to provide a point-in-time copy of the first data unit (614). Copy data of the second data unit to a fourth data unit to provide a point-in-time copy of the second data unit (620). Synchronize the fourth data unit to third data unit wherein both the third and fourth data units provide point-in-time copies of the data of the first data unit as of the first point-in-time (624). Synchronizing logic synchronizes the first and second point-in-time snap copy volumes to be consistent with each other as of a particular point-in-time notwithstanding an asynchronous mirror relationship between the primary volume of the primary system and the secondary volume of the secondary system.
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公开(公告)号：GB2577022A
公开(公告)日：2020-03-11
申请号：GB201918847
申请日：2018-05-22
Applicant: IBM
Inventor： MATTHEW WARD , CAROL MELLGREN , THERESA MARY BROWN , JOSHUA CRAWFORD , NICOLAS MARC CLAYTON , GREGORY MCBRIDE
Abstract: Provided are a computer program product, system, and method for processing a space release command when mirroring data at a source storage to a target storage. A space release command is received to free a release space in the source storage while transferring changed data in a consistency group. A determination is made as to whether a transfer time to transfer remaining consistency group data in the consistency group for the release space that has not been transferred exceeds a response time to process a space release command. The remaining consistency group data in the release space is transferred to the target storage in response to determining that the transfer time does not exceed the response time. The release space for the space release command is freed in response to transferring the consistency group data in the release space to the target storage.
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公开(公告)号：GB2571871B
公开(公告)日：2020-03-04
申请号：GB201908513
申请日：2017-11-13
Applicant: IBM
Inventor： MATTHEW WARD , MARK LIPETS , ANTHONY CIARAVELLA , MICHAEL GAGNER , THERESA MARY BROWN , CAROL MELLGREN , THEODORE TIMOTHY HARRIS JR , GREGORY MCBRIDE , NICOLAS MARC CLAYTON
Abstract: In accordance with one embodiment, asynchronous local and remote generation of consistent first and second point-in-time snap copy volumes provides for generating in a primary system, a first point-in-time snap copy volume of a primary volume of the primary system, and generating in a secondary system, a second point-in-time snap copy volume utilizing a secondary volume in the secondary system. Synchronizing logic synchronizes the first and second point-in-time snap copy volumes to be consistent with each other as of a particular point-in-time notwithstanding an asynchronous mirror relationship between the primary volume of the primary system and the secondary volume of the secondary system. Other features and aspects may be realized, depending upon the particular application.
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