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1. 发明授权

US07610318B2 Autonomic infrastructure enablement for point in time copy consistency 失效
标题翻译：自动基础设施启用时间点复制一致性
公开(公告)号：US07610318B2
公开(公告)日：2009-10-27
申请号：US10674900
申请日：2003-09-29
申请人： Robert F. Bartfai , Edward H. Lin , Gail A. Spear , Michael E. Factor , Sivan Tal
发明人： Robert F. Bartfai , Edward H. Lin , Gail A. Spear , Michael E. Factor , Sivan Tal
IPC分类号： G06F17/30
CPC分类号： G06F11/2071 , Y10S707/99945 , Y10S707/99955
摘要： A two-phase process FlashCopy operation is provided that can be used to aid in the formation of consistency groups across multiple storage control units. In the first phase, preparations to create a new consistency group are made “revertible” by write-inhibiting the source volumes through “Establish-FlashCopy-revertible” commands. If the preparation of any volume within the consistency group fails, a “Withdraw-FlashCopy-revert” command may be executed, thereby causing a retention of the prior FlashCopy point-in-time copy. In the second phase, executed if all preparations are successful, a “Withdraw-FlashCopy-commit” command may be executed to remove all write-inhibit indicators, complete the creation of the new FlashCopy point-in-time copy and secure the new consistency group. Write requests to the FlashCopy source volumes may then be received and processed without risking corruption of the new consistency group on the Flashcopy target volumes.
摘要翻译：提供了一个两阶段FlashCopy操作，可用于帮助跨多个存储控制单元形成一致性组。在第一阶段，创建新的一致性组的准备工作通过“建立-FromCopy-revertible”命令写入禁止源卷“可回复”。如果一致性组中的任何卷的准备失败，则可以执行“Withdraw-FlashCopy-revert”命令，从而保留先前的FlashCopy时间点副本。在第二阶段，如果所有准备工作都成功执行，则可以执行“Withdraw-FlashCopy-commit”命令来删除所有禁止写入指示符，完成创建新的FlashCopy时间点副本并确保新的一致性组。然后可以接收并处理向FlashCopy源卷写入请求，而不会在Flashcopy目标卷上新的一致性组的损坏风险。

2. 发明授权

US07818522B2 Apparatus, system, and method for incremental resynchronization in a data storage system 有权
标题翻译：用于数据存储系统中增量重新同步的装置，系统和方法
公开(公告)号：US07818522B2
公开(公告)日：2010-10-19
申请号：US11852161
申请日：2007-09-07
申请人： Robert F. Bartfai , Michael E. Factor , Shachar Fienblit , Olympia Gluck , Gail A. Spear
发明人： Robert F. Bartfai , Michael E. Factor , Shachar Fienblit , Olympia Gluck , Gail A. Spear
IPC分类号： G06F13/00
CPC分类号： G06F11/2082 , G06F11/2058 , G06F11/2064 , G06F11/2069 , G06F2201/82
摘要： An apparatus, system, and method are disclosed for performing an incremental resynchronization between two unrelated volumes when a third volume fails. The apparatus, system, and method include initiating registration of changed tracks; keeping track of bytes in flight activities between a local volume and an intermediate volume; recording the changed tracks in bitmaps at the local volume; stopping the recording of the changed tracks; and starting a resynchronization process by sending the changed tracks to a recovery volume.
摘要翻译：公开了一种用于在第三卷失败时执行两个不相关卷之间的增量重新同步的装置，系统和方法。装置，系统和方法包括启动改变轨迹的注册; 跟踪本地卷和中间卷之间的飞行活动中的字节数; 在本地卷上以位图记录已更改的曲目; 停止录制改变的曲目; 并通过将更改的轨道发送到恢复卷来启动重新同步过程。

3. 发明申请

US20090070528A1 APPARATUS, SYSTEM, AND METHOD FOR INCREMENTAL RESYNCHRONIZATION IN A DATA STORAGE SYSTEM 有权
标题翻译：数据存储系统中增量重构的装置，系统和方法
公开(公告)号：US20090070528A1
公开(公告)日：2009-03-12
申请号：US11852161
申请日：2007-09-07
申请人： Robert F. Bartfai , Michael E. Factor , Shachar Flenblit , Olympia Gluck , Gail A. Spear
发明人： Robert F. Bartfai , Michael E. Factor , Shachar Flenblit , Olympia Gluck , Gail A. Spear
IPC分类号： G06F12/00
CPC分类号： G06F11/2082 , G06F11/2058 , G06F11/2064 , G06F11/2069 , G06F2201/82
摘要： An apparatus, system, and method are disclosed for performing an incremental resynchronization between two unrelated volumes when a third volume fails. The apparatus, system, and method include initiating registration of changed tracks; keeping track of bytes in flight activities between a local volume and an intermediate volume; recording the changed tracks in bitmaps at the local volume; stopping the recording of the changed tracks; and starting a resynchronization process by sending the changed tracks to a recovery volume.
摘要翻译：公开了一种用于在第三卷失败时执行两个不相关卷之间的增量重新同步的装置，系统和方法。装置，系统和方法包括启动改变轨迹的注册; 跟踪本地卷和中间卷之间的飞行活动中的字节数; 在本地卷上以位图记录已更改的曲目; 停止录制改变的曲目; 并通过将更改的轨道发送到恢复卷来启动重新同步过程。

4. 发明授权

US07512835B2 Method, system and article of manufacture for recovery from a failure in a cascading PPRC system 失效
标题翻译：用于从级联PPRC系统故障中恢复的方法，系统和制造
公开(公告)号：US07512835B2
公开(公告)日：2009-03-31
申请号：US11555810
申请日：2006-11-02
申请人： Robert F. Bartfai , Michael E. Factor , Gail A. Spear , William F. Micka
发明人： Robert F. Bartfai , Michael E. Factor , Gail A. Spear , William F. Micka
IPC分类号： G06F11/00
CPC分类号： G06F11/2082 , G06F11/2058 , G06F11/2071
摘要： A method of recovery from a data storage system failure in a data storage system having a host computer writing data to a first storage unit with a first storage controller synchronously mirroring the data to a second storage unit, and with a second storage controller asynchronously mirroring the data to a third storage unit. Upon detection of an error or failure associated with the first storage unit, the synchronous data mirroring relationship between the first storage unit and the second storage unit is terminated and the host is directed to write data updates directly to the second storage unit. Upon correction of the failure associated the asynchronous mirroring of data updates from the second storage unit to the third storage unit is suspended and synchronous mirroring of the data updates in a reverse direction, from the second storage unit to the first storage unit, is commenced.
摘要翻译：一种从具有主机的数据存储系统中的数据存储系统故障恢复的方法，所述数据存储系统具有主计算机，用第一存储控制器向第一存储单元写入数据，所述第一存储控制器将所述数据同步地镜像到第二存储单元，并且与第二存储控制器异步镜像数据到第三存储单元。在检测到与第一存储单元相关联的错误或故障时，第一存储单元和第二存储单元之间的同步数据镜像关系终止，并且主机将数据更新直接写入第二存储单元。在对与从第二存储单元到第三存储单元的数据更新的异步镜像相关联的故障进行校正时，数据从第二存储单元向第一存储单元反向的更新的同步镜像开始。

5. 发明授权

US07188272B2 Method, system and article of manufacture for recovery from a failure in a cascading PPRC system 失效
标题翻译：用于从级联PPRC系统故障中恢复的方法，系统和制造
公开(公告)号：US07188272B2
公开(公告)日：2007-03-06
申请号：US10674866
申请日：2003-09-29
申请人： Robert F. Bartfai , Michael E. Factor , Gail A. Spear , William F. Micka
发明人： Robert F. Bartfai , Michael E. Factor , Gail A. Spear , William F. Micka
IPC分类号： G06F11/00
CPC分类号： G06F11/2082 , G06F11/2058 , G06F11/2071
摘要： A method of recovery from a data storage system failure in a data storage system having a host computer writing data to a first storage unit with a first storage controller synchronously mirroring the data to a second storage unit, and with a second storage controller asynchronously mirroring the data to a third storage unit. The method begins with the detection of a failure associated with the first storage unit. Upon detection of the error or failure associated with the first storage unit, the synchronous data mirroring relationship between the first storage unit and the second storage unit is terminated and the host is directed to write data updates directly to the second storage unit. Upon correction of the failure associated with the first storage unit, the asynchronous mirroring of data updates from the second storage unit to the third storage unit is suspended and synchronous mirroring of the data updates in a reverse direction, from the second storage unit to the first storage unit, is commenced. When a full duplex state is reached between the first storage unit and the second storage unit, the synchronous PPRC relationship with the first storage volume mirroring data to the second storage volume may be reestablished and host I/O writes to the first storage unit may be resumed.
摘要翻译：一种从具有主机的数据存储系统中的数据存储系统故障恢复的方法，所述数据存储系统具有主计算机，用第一存储控制器向第一存储单元写入数据，所述第一存储控制器将所述数据同步地镜像到第二存储单元，并且与第二存储控制器异步镜像数据到第三存储单元。该方法开始于检测与第一存储单元相关联的故障。在检测到与第一存储单元相关联的错误或故障时，第一存储单元和第二存储单元之间的同步数据镜像关系被终止，并且主机将数据更新直接写入第二存储单元。在校正与第一存储单元相关联的故障时，暂停从第二存储单元到第三存储单元的数据更新的异步镜像，并且数据的同步镜像沿相反方向从第二存储单元更新到第一存储单元存储单元，开始。当在第一存储单元和第二存储单元之间达到全双工状态时，可以重新建立与第一存储卷镜像数据到第二存储卷的同步PPRC关系，并且可以向第一存储单元写入主机I / O 恢复。

6. 发明授权

US07278049B2 Method, system, and program for recovery from a failure in an asynchronous data copying system 有权
标题翻译：用于从异步数据复制系统中的故障恢复的方法，系统和程序
公开(公告)号：US07278049B2
公开(公告)日：2007-10-02
申请号：US10674872
申请日：2003-09-29
申请人： Robert F. Bartfai , Gail A. Spear
发明人： Robert F. Bartfai , Gail A. Spear
IPC分类号： G06F11/00
CPC分类号： G06F11/2064 , G06F11/2069 , G06F11/2074 , G06F11/2082
摘要： A method of recovery from a data storage system failure in a data storage system having a host computer writing data updates to a local storage controller at a local site. The local controller is associated with a local storage device. The local storage controller is also configured to a synchronously copy the updates to a remote storage controller associated with a remote storage device at a remote site. In addition, the remote storage controller is configured to store a consistent point in time copy of the updates on a backup storage device. The consistent point in time copy is known as a consistency group. Upon detection of a failure associated with the local site, a determination is made whether a group of updates pending for storage on the backup storage device form an intact consistency group. If an intact consistency group has not formed, corrective action may be taken to create an intact consistency group. The recovery method further consists of synchronizing the remote storage device, initiating recovery operations and, upon recovery of the local site, resynchronization of the local storage device and the backup storage device to recovery consistency group without the need for full volume storage copies and while minimizing application downtime.
摘要翻译：在具有主机的数据存储系统中从数据存储系统故障恢复的方法，该数据存储系统在本地站点向本地存储控制器写入数据更新。本地控制器与本地存储设备相关联。本地存储控制器还被配置为将更新同步地复制到与远程站点处的远程存储设备相关联的远程存储控制器。此外，远程存储控制器被配置为将更新的一致的时间点副本存储在备份存储设备上。一致的时间点副本被称为一致性组。在检测到与本地站点相关联的故障时，确定待备份存储在备份存储设备上的一组更新是否形成完整的一致性组。如果未形成完整的一致性组，则可采取纠正措施来创建完整的一致性组。恢复方法还包括同步远程存储设备，启动恢复操作，并且在恢复本地站点时，将本地存储设备和备份存储设备重新同步到恢复一致性组，而不需要全卷存储副本，同时最小化应用程序停机

7. 发明授权

US09195403B2 Replicating tracks from a first storage site to a second and third storage sites 有权
标题翻译：将轨道从第一个存储站点复制到第二个和第三个存储站点
公开(公告)号：US09195403B2
公开(公告)日：2015-11-24
申请号：US13612314
申请日：2012-09-12
申请人： Michael T. Benhase , Lokesh M. Gupta , Brian D. Hatfield , Gail A. Spear
发明人： Michael T. Benhase , Lokesh M. Gupta , Brian D. Hatfield , Gail A. Spear
IPC分类号： G06F12/00 , G06F3/06 , G06F12/12 , G06F12/08
CPC分类号： G06F3/0619 , G06F3/0605 , G06F3/065 , G06F3/0665 , G06F3/067 , G06F3/0689 , G06F12/0866 , G06F12/0868 , G06F12/12 , G06F2212/262
摘要： Provided are a computer program product, system, and method for replicating tracks from a first storage to a second and third storages. A determination is made of a track in the first storage to transfer to the second storage as part of a point-in-time copy relationship and of a stride of tracks including the target track. The stride of tracks including the target track is staged from the first storage to a cache according to the point-in-time copy relationship. The staged stride is destaged from the cache to the second storage. The stride in the cache is transferred to the third storage as part of a mirror copy relationship. The stride of tracks in the cache is demoted in response to destaging the stride of the tracks in the cache to the second storage and transferring the stride of tracks in the cache to the third storage.
摘要翻译：提供了一种用于将轨道从第一存储器复制到第二和第三存储器的计算机程序产品，系统和方法。确定在第一存储器中的轨道作为时间点复制关系的一部分和包括目标轨道的轨迹的步幅传送到第二存储器。根据时间点复制关系，将包含目标轨道的轨道的步幅从第一个存储器暂存到高速缓存。分阶段的步伐已经从高速缓存迁移到第二个存储。缓存中的步幅作为镜像复制关系的一部分传输到第三个存储。响应于高速缓存中的轨道的步幅降级到第二存储器并且将高速缓存中的轨迹的步幅传送到第三存储器，缓存中的轨道的步幅被降级。

8. 发明授权

US09058121B2 Replicating tracks from a first storage site to a second and third storage sites 有权
公开(公告)号：US09058121B2
公开(公告)日：2015-06-16
申请号：US13612314
申请日：2012-09-12
申请人： Michael T. Benhase , Lokesh M. Gupta , Brian D. Hatfield , Gail A. Spear
发明人： Michael T. Benhase , Lokesh M. Gupta , Brian D. Hatfield , Gail A. Spear
IPC分类号： G06F12/00 , G06F3/06 , G06F12/12
摘要： Provided are a computer program product, system, and method for replicating tracks from a first storage to a second and third storages. A determination is made of a track in the first storage to transfer to the second storage as part of a point-in-time copy relationship and of a stride of tracks including the target track. The stride of tracks including the target track is staged from the first storage to a cache according to the point-in-time copy relationship. The staged stride is destaged from the cache to the second storage. The stride in the cache is transferred to the third storage as part of a mirror copy relationship. The stride of tracks in the cache is demoted in response to destaging the stride of the tracks in the cache to the second storage and transferring the stride of tracks in the cache to the third storage.

9. 发明授权

US08266325B2 Compression on thin provisioned volumes using extent based mapping 失效
标题翻译：使用基于范围的映射压缩精简配置卷
公开(公告)号：US08266325B2
公开(公告)日：2012-09-11
申请号：US12701184
申请日：2010-02-05
申请人： Michael T. Benhase , Binny S. Gill , Lokesh M. Gupta , Matthew J. Kalos , Gail A. Spear
发明人： Michael T. Benhase , Binny S. Gill , Lokesh M. Gupta , Matthew J. Kalos , Gail A. Spear
IPC分类号： G06F15/16
CPC分类号： G06F3/064 , G06F3/0608 , G06F3/0613 , G06F3/067 , G06F12/0804 , G06F12/0868 , G06F2212/401
摘要： A set of logical extents, each having compressed logical tracks of data, is mapped to a head physical extent and, if the head physical extent is determined to have been filled, to at least one overflow extent having spatial proximity to the head physical extent. Pursuant to at least one subsequent write operation and destage operation, the at least one subsequent write operation and destage operation determined to be associated with the head physical extent, the write operation is mapped to one of the head physical extent, the at least one overflow extent, and an additional extent having spatial proximity to the at least one overflow extent.
摘要翻译：将具有压缩的数据的逻辑轨迹的一组逻辑盘区映射到头部物理范围，并且如果将头部物理范围确定为已经被填充到具有与头部物理范围的空间接近的至少一个溢出范围。根据至少一个随后的写入操作和终止操作，所述至少一个随后的写入操作和后退操作被确定为与所述头部物理范围相关联，所述写入操作被映射到所述头部物理范围中的一个，所述至少一个溢出并且具有与至少一个溢出范围的空间接近的附加程度。

10. 发明申请

US20120221499A1 WORKLOAD LEARNING IN DATA REPLICATION ENVIRONMENTS 有权
标题翻译：数据复制环境中的工作量学习
公开(公告)号：US20120221499A1
公开(公告)日：2012-08-30
申请号：US13458714
申请日：2012-04-27
申请人： Lawrence Y. Chiu , Yang Liu , Matthew J. Kalos , Paul H. Muench , Gail A. Spear
发明人： Lawrence Y. Chiu , Yang Liu , Matthew J. Kalos , Paul H. Muench , Gail A. Spear
IPC分类号： G06F15/18 , G06F17/30
CPC分类号： G06F11/3485 , G06F11/2071 , G06F11/3414 , G06F11/3442
摘要： A method for replicating I/O performance in data replication environments, such as PPRC environments, is described. In selected embodiments, such a method includes monitoring I/O workload at a primary storage device over a period of time, such as a period of hours, days, or months. The method then generates learning data at the primary storage device describing the I/O workload over the selected time period. The learning data is replicated from the primary storage device to a secondary storage device. The method uses the learning data to optimize the secondary storage device to handle the I/O workload of the primary storage device. This will enable the secondary storage device to provide substantially the same I/O performance as the primary storage device in the event a failover occurs.
摘要翻译：描述了在数据复制环境（如PPRC环境）中复制I / O性能的方法。在所选择的实施例中，这种方法包括在一段时间（例如，几个小时，几天或几个月的时段）监视主存储设备处的I / O工作负载。然后，该方法在主存储设备上在所选择的时间段内生成描述I / O工作负载的学习数据。学习数据从主存储设备复制到辅助存储设备。该方法使用学习数据优化辅助存储设备来处理主存储设备的I / O工作负载。在发生故障转移的情况下，这将使辅助存储设备能够提供与主存储设备基本相同的I / O性能。

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