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公开(公告)号：US11030125B2
公开(公告)日：2021-06-08
申请号：US13759935
申请日：2013-02-05
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.
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42.发明授权公开(公告)号：US10783047B2
公开(公告)日：2020-09-22
申请号：US16123635
申请日：2018-09-06
摘要： Provided are a computer program product, system, and method for forming a consistency group comprised of volumes maintained by one or more storage controllers. At least one storage controller is caused to perform reservation operations for point-in-time copies of storage units to allocate storage resources and a data structure for a point-in-time copy. Upon successfully completing the reservation operations for all the point-in-time copies, Input/Output (I/O) operations to the storage units of the point-in-time copies are suspended. If I/O operations were successfully suspended at the storage units for all of the point-in-time copies, then suspension of I/O operations is ended I/O operations are allowed to continue at the storage units of the point-in-time copies. The point-in-time copies at the storage units are formed at which the suspension of I/O operations was ended after being successfully suspended. The point-in-time copies are consistent as of a same point-in-time.
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43.发明申请公开(公告)号：US20190171528A1
公开(公告)日：2019-06-06
申请号：US16268407
申请日：2019-02-05
发明人： Theresa M. Brown , Nicolas M. Clayton , Joshua J. Crawford , Nedlaya Y. Francisco , Theodore T. Harris, JR. , Gregory E. McBride , Carol S. Mellgren , Damian Trujillo , Matthew J. Ward
摘要： One general aspect of asynchronous local and remote generation of consistent point-in-time snap copies in consistency groups in accordance with the present description, is directed to receiving a local-remote pair point-in-time snap copy establish command to establish a local point-in-time snap copy in a local data storage system, and a remote point-in-time snap copy in a remote data storage system. In one aspect, establishment of the remote point-in-time snap copy relationship may be delayed as a function of the state of a consistency group formation process upon receipt of the local-remote pair point-in-time snap copy establish command. As a result, consistency of the local-remote pair of point-in-time snap copies may be realized, notwithstanding an asynchronous relationship between the local and remote storage systems. Other features and aspects may be realized, depending upon the particular application.
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44.发明申请公开(公告)号：US20190034293A1
公开(公告)日：2019-01-31
申请号：US15662144
申请日：2017-07-27
发明人： Theresa M. Brown , Nicolas M. Clayton , Nedlaya Y. Francisco , Theodore T. Harris, JR. , Kevin Lin , Gregory E. McBride , Carol S. Mellgren , Raul E. Saba , Matthew Sanchez
IPC分类号： G06F11/14
CPC分类号： G06F11/1469 , G06F11/1446 , G06F11/1451 , G06F11/1464 , G06F11/2064 , G06F11/2074 , G06F2201/805 , G06F2201/82 , G06F2201/84
摘要： Consistency groups are asynchronously copied to a remote computational device, from a local computational device, wherein point in time copy operations are performed at the local computational device while the consistency groups are being asynchronously copied to the remote computational device. Indicators are stored at the remote computational device to identify those point in time copy operations that are to be restored as part of a recovery operation performed at the remote computational device in response to a failure of the local computational device.
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45.发明授权公开(公告)号：US10042581B2
公开(公告)日：2018-08-07
申请号：US15372154
申请日：2016-12-07
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
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.
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46.发明申请公开(公告)号：US20180157423A1
公开(公告)日：2018-06-07
申请号：US15372154
申请日：2016-12-07
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.
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47.发明申请公开(公告)号：US20180101320A1
公开(公告)日：2018-04-12
申请号：US15838353
申请日：2017-12-11
发明人： Theresa M. Brown , Susan K. Candelaria , Nedlaya Y. Francisco , Lisa J. Gundy , Corey G. Smeaton , Warren K. Stanley , Jeffrey R. Suarez
CPC分类号： G06F3/0619 , G06F3/06 , G06F3/065 , G06F3/067 , G06F11/1451 , G06F11/2058 , G06F11/2071 , G06F2201/84
摘要： Provided are a computer program product, system, and method for performing a remote point-in-time copy to a source and target storages in further mirror copy relationships. Each of a plurality of source copy relationships is from the source storage to one corresponding source copy storage. Each of a plurality of target copy relationships is from the target storage to one corresponding target copy storage, where in each relationship an indicator indicates whether to use a remote first type copy operation. The first type copy operation is used to copy data from the source storage to the target storage and copy data from the source copy storage to the target copy storage for the determined source and target copy relationships having the indicator set. A second type of copy operations is used for source and target relationships not having the indicator set.
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公开(公告)号：US09542107B2
公开(公告)日：2017-01-10
申请号：US14314203
申请日：2014-06-25
CPC分类号： G06F3/0619 , G06F3/061 , G06F3/0659 , G06F3/0689
摘要： A method for combining storage array copy requests for a disk storage system is disclosed. The method may include receiving a BGC (background copy) request, determining that the BGC request satisfies a set of background copy (BGC) criteria, and adding, based on the determining, the BGC request to a sorted position in the wait accumulation queue (WAQ). The method may also include combining, based on a set of track combining criteria, the BGC request and an adjacent BGC request into a combined BGC request including data locations corresponding to the BGC request and to the adjacent BGC request. The method may also include replacing, in a sorted position in the WAQ, the BGC request and the adjacent BGC request with the combined BGC request, and moving, based on the set of BGC criteria, the combined BGC request to a BGC queue.
摘要翻译： 公开了一种用于组合磁盘存储系统的存储阵列复制请求的方法。 该方法可以包括接收BGC（后台复制）请求，确定BGC请求满足一组背景复制（BGC）标准，并且基于将等待积累队列中的排序位置的BGC请求确定 WAQ）。 该方法还可以包括基于一组轨道组合标准将BGC请求和相邻BGC请求组合成包括对应于BGC请求和相邻BGC请求的数据位置的组合BGC请求。 该方法还可以包括在WAQ中的排序位置替换BGC请求和具有组合的BGC请求的相邻BGC请求，并且基于BGC标准集合将组合的BGC请求移动到BGC队列。
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公开(公告)号：US20160283128A1
公开(公告)日：2016-09-29
申请号：US15172761
申请日：2016-06-03
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
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.
摘要翻译： 存储控制器从主机接收关于轨道的写入命令。 第一过程确定轨道是源轨道，并且还确定至少一个对应的目标轨道与源轨迹呈递增的复制关系。 产生第二过程以修改目标变化记录结构，其中第二过程与第一过程并行执行。
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公开(公告)号：US20150378620A1
公开(公告)日：2015-12-31
申请号：US14314203
申请日：2014-06-25
IPC分类号： G06F3/06
CPC分类号： G06F3/0619 , G06F3/061 , G06F3/0659 , G06F3/0689
摘要： A method for combining storage array copy requests for a disk storage system is disclosed. The method may include receiving a BGC (background copy) request, determining that the BGC request satisfies a set of background copy (BGC) criteria, and adding, based on the determining, the BGC request to a sorted position in the wait accumulation queue (WAQ). The method may also include combining, based on a set of track combining criteria, the BGC request and an adjacent BGC request into a combined BGC request including data locations corresponding to the BGC request and to the adjacent BGC request. The method may also include replacing, in a sorted position in the WAQ, the BGC request and the adjacent BGC request with the combined BGC request, and moving, based on the set of BGC criteria, the combined BGC request to a BGC queue.
摘要翻译： 公开了一种用于组合磁盘存储系统的存储阵列复制请求的方法。 该方法可以包括接收BGC（后台复制）请求，确定BGC请求满足一组背景复制（BGC）标准，并且基于将等待积累队列中的排序位置的BGC请求确定 WAQ）。 该方法还可以包括基于一组轨道组合标准将BGC请求和相邻BGC请求组合成包括对应于BGC请求和相邻BGC请求的数据位置的组合BGC请求。 该方法还可以包括在WAQ中的排序位置替换BGC请求和具有组合的BGC请求的相邻BGC请求，并且基于BGC标准集合将组合的BGC请求移动到BGC队列。
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