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公开(公告)号：US11379335B2
公开(公告)日：2022-07-05
申请号：US15725773
申请日：2017-10-05
摘要： A method, computer system, and a computer program product for collecting performance data on a consistency group boundary is provided. The present invention may include positioning a plurality of software applications into idle mode. The present invention may also include starting a consistency group based on a command from a Global Mirror Master. The present invention may then include collecting a plurality of performance data associated with the started consistency group. The present invention may then include removing a plurality of remaining data associated with the collected plurality of performance data. The present invention may further include ending the collection of the collected plurality of data.
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公开(公告)号：US11175827B2
公开(公告)日：2021-11-16
申请号：US16430777
申请日：2019-06-04
摘要： Provided are a computer program product, system, and method for determining tracks to release in a target volume mirroring tracks from a source volume. Tracks received from the source volume are written to the target volume to form a consistency group of tracks in the source volume at the target volume. A determination is made of tracks available to release from a volume table providing a state of the tracks in the target volume and space allocated to the determined tracks is released. A point-in-time copy of the target volume is crated and complete is returned to forming the consistency group in response to releasing the space and creating the point-in-time copy.
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公开(公告)号：US11099751B2
公开(公告)日：2021-08-24
申请号：US16430747
申请日：2019-06-04
摘要： Provided are a computer program product, system, and method for determining tracks to release in a source volume being copied to a target volume. A consistency group is formed of tracks in the source volume to copy to the target volume. A volume table providing information on the tracks allocated to the source volume is copied to a volume table copy in a memory providing a state of the tracks in the source volume as of a consistency group time. A determination is made of tracks in the source volume to release for tracks that are indicated in the volume table copy as available to release excluding tracks in the source volume that are written after the consistency group time. Space allocated to the determined tracks is released.
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4.发明申请公开(公告)号：US20210232462A1
公开(公告)日：2021-07-29
申请号：US16773637
申请日：2020-01-27
摘要： A computer-implemented method according to one embodiment includes receiving a request to withdraw a point-in-time snapshot copy operation being implemented by a data consistency application; in response to determining that the data consistency application is creating a current consistency group, maintaining the withdrawal request while allowing the creation of the current consistency group by the data consistency application; and in response to determining that the data consistency application is idle, preventing a formation of a new consistency group by the data consistency application during the withdrawal of the point-in-time snapshot copy operation.
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公开(公告)号：US11055017B1
公开(公告)日：2021-07-06
申请号：US16773620
申请日：2020-01-27
摘要： A computer-implemented method according to one embodiment includes determining that a consistency group has not been created within a predetermined period of time; sending a request to create the consistency group, where the request includes an indication that a creation of the consistency group is mandatory; identifying one or more logical storage volumes associated with the request to create the consistency group; marking each of the identified one or more logical storage volumes to indicate that a point-in-time snapshot copy operation is not allowed for the one or more logical storage volumes; creating the consistency group; sending the consistency group from a source site to a destination site; and removing the marking from each of the identified one or more logical storage volumes to indicate that a point-in-time snapshot copy operation is allowed for the one or more logical storage volumes.
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公开(公告)号：US20200050371A1
公开(公告)日：2020-02-13
申请号：US16656562
申请日：2019-10-17
发明人： Theresa M. Brown , Nicolas M. Clayton , Joshua J. Crawford , Gregory E. McBride , Carol S. Mellgren , Matthew J. Ward
摘要： 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：US20200042631A1
公开(公告)日：2020-02-06
申请号：US16052340
申请日：2018-08-01
IPC分类号： G06F17/30
摘要： In one embodiment, upon initiation of a consistency group, bandwidth reduction scanning logic determines whether a volume portion such as a track containing data which is to be mirrored from a primary volume to a secondary volume to form a consistency group, is allocated to the primary volume. If not, the bandwidth reduction scanning logic causes the data of the associated volume portion to not be mirrored from the primary volume to the secondary volume. As a result, the volume portion determined to not be allocated to the primary volume is bypassed by the mirroring operation, thereby reducing bandwidth usage by the mirroring and accelerating the formation of a consistency group. Other features and aspects may be realized, depending upon the particular application.
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公开(公告)号：US10545688B2
公开(公告)日：2020-01-28
申请号：US15868881
申请日：2018-01-11
摘要： Remote copy operations are performed to copy data from a primary storage controller to a secondary storage controller, wherein input/output (I/O) requests are received at the primary storage controller from a host both via a bus interface and a network interface while the remote copy operations are in progress, and wherein consistency groups are formed during the remote copy operations to copy the data consistently. Quiescing of I/O operations performed via the bus interface are performed while a current consistency group is being replaced by a next consistency group during the remote copy operations.
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9.发明授权公开(公告)号：US10409733B2
公开(公告)日：2019-09-10
申请号：US15840363
申请日：2017-12-13
摘要： Provided are a computer program product, system, and method for determining space to release in a target volume to which tracks from a source volume are mirrored. A copy of a source volume table for the source volume providing a state of the tracks in the source volume for a consistency group is received. Tracks received from the source volume are written to the target volume to form the consistency group of tracks in the source volume at the target volume. A determination is made of tracks available to release from the copy of the source volume table and space allocated to the determined tracks is replaced. A point-in-time copy is created of the target volume for the consistency group. Complete is returned to forming the consistency group in response to releasing the space and creating the point-in-time copy.
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10.发明申请公开(公告)号：US20190212924A1
公开(公告)日：2019-07-11
申请号：US15868875
申请日：2018-01-11
IPC分类号： G06F3/06 , G06F12/0802
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0665 , G06F3/0685 , G06F12/0802 , G06F13/4234 , G06F2212/60
摘要： Remote copy operations are performed to copy data from a primary storage controller to a secondary storage controller, wherein input/output (I/O) requests are received at the primary storage controller from a host both via a bus interface and a network interface while the remote copy operations are in progress, and wherein consistency groups are formed during the remote copy operations to copy the data consistently. A relocation is performed of data written via the bus interface for a current consistency group from a cache to a sidefile, and subsequently data written via the bus interface for a next consistency group is stored in the cache.
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