公开(公告)号：US10545690B2

公开(公告)日：2020-01-28

申请号：US15924168

申请日：2018-03-16

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Theresa M. Brown ,  Nedlaya Y. Francisco ,  Suguang Li ,  Mark L. Lipets ,  Gregory E. McBride ,  Carol S. Mellgren ,  Raul E. Saba

IPC分类号： G06F12/00 ,  G06F3/06 ,  G06F11/14

摘要： Provided are a computer program product, system, and method for using a cascade flag to process a copy relationship having a backward cascade copy relationship. Each of a plurality of copy relationships indicates to copy source data to target data and has a cascade flag. The cascade flag for a forward copy relationship of the copy relationships is set to a first value in response to determining that the source data for the forward copy relationship comprises target data for a backward copy relationship and that a background copy operation specified to copy source data to target data of the backward copy relationship has not completed. The cascade flag for the forward copy relationship is set to a second value in response to determining that the backward copy relationship does not have an uncompleted background copy operation.

公开(公告)号：US20180267712A1

公开(公告)日：2018-09-20

申请号：US15983088

申请日：2018-05-17

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Theresa M. Brown ,  Nicholas M. Clayton ,  Nedlaya Y. Francisco ,  Suguang Li ,  Mark L. Lipets ,  Gregory E. McBride ,  Carol S. Mellgren ,  Raul E. Saba

IPC分类号： G06F3/06

CPC分类号： G06F3/065 ,  G06F3/0608 ,  G06F3/0631 ,  G06F3/0644 ,  G06F3/0646 ,  G06F3/0647 ,  G06F3/0659 ,  G06F3/0683

摘要： Provided are a computer program product, system, and method for releasing space allocated to a space efficient target storage in a copy relationship with a source storage. Source and target copy relationships indicate source data in the source storage to copy to target data in the target storage. The source copy relationship indicates source data that need to be copied to the target data before being updated, and the target copy relationship indicates target data tracks updated with data copied from corresponding source data. An operation is initiated that results in terminating the source and target copy relationships. Space allocated to the target data for the source and target copy relationships is released in response to determining that the target storage comprises the space efficient storage. The source and target copy relationships are removed.

公开(公告)号：US09658798B2

公开(公告)日：2017-05-23

申请号：US15185679

申请日：2016-06-17

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Kevin J. Ash ,  Lokesh M. Gupta ,  Theodore T. Harris, Jr. ,  Suguang Li

IPC分类号： G06F3/06

CPC分类号： G06F3/065 ,  G06F3/061 ,  G06F3/0619 ,  G06F3/0659 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0689 ,  G06F12/08

摘要： For performing efficient full-stride copy source-to-target operations in a computing storage environment by a processor device, pursuant to a destage operation, a determination is made whether to destage a full stride or one track of data on a target volume by comparing a counted number of modified tracks for the full stride against a predetermined threshold.

公开(公告)号：US09513840B2

公开(公告)日：2016-12-06

申请号：US15172761

申请日：2016-06-03

申请人： International Business Machines Corporation

发明人： Theresa M. Brown ,  Nedlaya Y. Francisco ,  Suguang Li ,  Mark L. Lipets ,  Carol S. Mellgren ,  Raul E. Saba

IPC分类号： G06F3/06 ,  G06F11/14

CPC分类号： G06F3/065 ,  G06F3/0614 ,  G06F3/0619 ,  G06F3/0683 ,  G06F11/1446 ,  G06F11/1451

摘要： A storage controller receives a write command with respect to a track, from a host. A first process determines that the track is a source track and also determines that at least one corresponding target track is in an incremental copy relation to the source track. A second process is generated to modify a target change recording structure, where the second process executes in parallel with the first process.

公开(公告)号：US09395925B2

公开(公告)日：2016-07-19

申请号：US14204928

申请日：2014-03-11

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Kevin J. Ash ,  Lokesh M. Gupta ,  Theodore T. Harris, Jr. ,  Suguang Li

IPC分类号： G06F3/06

CPC分类号： G06F3/065 ,  G06F3/061 ,  G06F3/0619 ,  G06F3/0659 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0689 ,  G06F12/08

摘要： For performing efficient full-stride copy source-to-target operations in a computing storage environment by a processor device, pursuant to a destage operation, a determination is made whether to destage a full stride or one track of data on a target volume by comparing a counted number of modified tracks for the full stride against a predetermined threshold.

摘要翻译： 为了在处理器设备在计算存储环境中执行有效的全步复制源到目标操作，根据流水作业，确定是否通过比较来确定目标体积上的数据的完整步幅或一个轨迹 用于针对预定阈值的全步进行的修改轨迹的计数数目。

公开(公告)号：US20150268893A1

公开(公告)日：2015-09-24

申请号：US14730734

申请日：2015-06-04

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Theresa M. Brown ,  Nedlaya Y. Francisco ,  Matthew J. Kalos ,  Suguang Li ,  Beth A. Peterson

IPC分类号： G06F3/06

CPC分类号： G06F3/0619 ,  G06F3/0614 ,  G06F3/0622 ,  G06F3/0637 ,  G06F3/065 ,  G06F3/0659 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0673 ,  G06F3/0683 ,  G06F3/0689 ,  G06F11/1446 ,  G06F11/1456 ,  G06F11/2074 ,  G06F11/2094 ,  G06F2003/0692

摘要： A plurality of logical volumes are stored at a plurality of sites. A command to execute an operation on a logical volume is received. A determination is made as to whether a rule associated with the logical volume permits execution of the operation on the logical volume. In response to determining that the rule associated with the logical volume permits execution of the operation on the logical volume, the operation is executed on the logical volume.

公开(公告)号：US20140223121A1

公开(公告)日：2014-08-07

申请号：US13759935

申请日：2013-02-05

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Theresa M. Brown ,  Nedlaya Y. Francisco ,  Suguang Li ,  Beth A. Peterson

IPC分类号： G06F12/16

CPC分类号： G06F12/16 ,  G06F11/1456 ,  G06F11/1461 ,  G06F2201/84

摘要： A request is received to perform a point in time copy operation from a source volume to a space efficient target volume. A controller copies data stored in a group of data storage units, from the source volume to a non-volatile storage, to preserve the point in time copy operation. A background process asynchronously copies the data from the non-volatile storage to the space efficient target volume to commit a physical point in time copy of the data from the source volume to the target volume.

摘要翻译： 接收到请求以执行从源卷到空间有效的目标卷的时间点复制操作。 控制器将存储在一组数据存储单元中的数据从源卷复制到非易失性存储，以保留时间点复制操作。 后台进程异步地将数据从非易失性存储复制到空间有效的目标卷，以将数据的物理时间点从源卷提交到目标卷。

公开(公告)号：US11030125B2

公开(公告)日：2021-06-08

申请号：US13759935

申请日：2013-02-05

申请人： International Business Machines Corporation

发明人： Theresa M. Brown ,  Nedlaya Y. Francisco ,  Suguang Li ,  Beth A. Peterson

IPC分类号： G06F12/00 ,  G06F12/16 ,  G06F11/14

摘要： A request is received to perform a point in time copy operation from a source volume to a space efficient target volume. A controller copies data stored in a group of data storage units, from the source volume to a non-volatile storage, to preserve the point in time copy operation. A background process asynchronously copies the data from the non-volatile storage to the space efficient target volume to commit a physical point in time copy of the data from the source volume to the target volume.

公开(公告)号：US10042581B2

公开(公告)日：2018-08-07

申请号：US15372154

申请日：2016-12-07

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Theresa M. Brown ,  Nicholas M. Clayton ,  Nedlaya Y. Francisco ,  Suguang Li ,  Mark L. Lipets ,  Gregory E. McBride ,  Carol S. Mellgren ,  Raul E. Saba

IPC分类号： G06F12/00 ,  G06F3/06

摘要： Provided are a computer program product, system, and method for releasing space allocated to a space efficient target storage in a copy relationship with a source storage. Source and target copy relationships indicate source data in the source storage to copy to target data in the target storage. The source copy relationship indicates source data that need to be copied to the target data before being updated, and the target copy relationship indicates target data tracks updated with data copied from corresponding source data. An operation is initiated that results in terminating the source and target copy relationships. Space allocated to the target data for the source and target copy relationships is released in response to determining that the target storage comprises the space efficient storage. The source and target copy relationships are removed.

公开(公告)号：US20180157423A1

公开(公告)日：2018-06-07

申请号：US15372154

申请日：2016-12-07

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Theresa M. Brown ,  Nicholas M. Clayton ,  Nedlaya Y. Francisco ,  Suguang Li ,  Mark L. Lipets ,  Gregory E. McBride ,  Carol S. Mellgren ,  Raul E. Saba

IPC分类号： G06F3/06

CPC分类号： G06F3/065 ,  G06F3/0608 ,  G06F3/0631 ,  G06F3/0644 ,  G06F3/0646 ,  G06F3/0647 ,  G06F3/0659 ,  G06F3/0683

摘要： Provided are a computer program product, system, and method for releasing space allocated to a space efficient target storage in a copy relationship with a source storage. Source and target copy relationships indicate source data in the source storage to copy to target data in the target storage. The source copy relationship indicates source data that need to be copied to the target data before being updated, and the target copy relationship indicates target data tracks updated with data copied from corresponding source data. An operation is initiated that results in terminating the source and target copy relationships. Space allocated to the target data for the source and target copy relationships is released in response to determining that the target storage comprises the space efficient storage. The source and target copy relationships are removed.