公开(公告)号：US20090094483A1

公开(公告)日：2009-04-09

申请号：US12335059

申请日：2008-12-15

申请人： Angqin Bai ,  Alex Q. Chen ,  Theodore T. Harris, JR. ,  Carol S. Mellgren ,  Edwin K. Scott ,  Gail A. Spear

发明人： Angqin Bai ,  Alex Q. Chen ,  Theodore T. Harris, JR. ,  Carol S. Mellgren ,  Edwin K. Scott ,  Gail A. Spear

IPC分类号： G06F11/07 ,  G06F9/46

CPC分类号： G06F11/1443 ,  G06F11/2069

摘要： Tracks of data or other data units are copied from a primary storage system to a secondary storage system. For multiple-track or multiple-data unit transfers, a group of tracks or data units which are sequentially related are transferred. A respective task is defined at the primary storage system for monitoring a progress of the transfer of each of the respective data units in a group. A state is maintained for monitoring a progress of the transfer of the group responsive to the progress of each of the tasks. A normal state is selected when there are no failed tasks. A recovery state is selected when there is a failure, and the status of the remaining tasks is being ascertained. A retry state is selected following the recovery state to retry the failed tasks. A failed state indicates an unrecoverable failure.

摘要翻译： 数据或其他数据单元的轨迹从主存储系统复制到辅助存储系统。 对于多轨或多数据单元传送，传送与一连串相关的一组轨道或数据单元。 在主存储系统上定义相应的任务，用于监视组中每个相应数据单元的传送进度。 维护一个状态，以响应每个任务的进度监视组的转移进度。 当没有失败的任务时，选择正常状态。 当出现故障时选择恢复状态，并确定剩余任务的状态。 在恢复状态之后选择重试状态以重试失败的任务。 失败的状态表示不可恢复的故障。

公开(公告)号：US07493617B2

公开(公告)日：2009-02-17

申请号：US10794553

申请日：2004-03-05

申请人： Angqin Bai ,  Alex Q. Chen ,  Theodore T. Harris, Jr. ,  Carol S. Mellgren ,  Edwin K. Scott ,  Gail A. Spear

发明人： Angqin Bai ,  Alex Q. Chen ,  Theodore T. Harris, Jr. ,  Carol S. Mellgren ,  Edwin K. Scott ,  Gail A. Spear

IPC分类号： G06F9/46 ,  G06F11/00

CPC分类号： G06F11/1443 ,  G06F11/2069

摘要： Tracks of data or other data units are copied from a primary storage system to a secondary storage system. For multiple-track or multiple-data unit transfers, a group of tracks or data units which are sequentially related are transferred. A respective task is defined at the primary storage system for monitoring a progress of the transfer of each of the respective data units in a group. A state is maintained for monitoring a progress of the transfer of the group responsive to the progress of each of the tasks. A normal state is selected when there are no failed tasks. A recovery state is selected when there is a failure, and the status of the remaining tasks is being ascertained. A retry state is selected following the recovery state to retry the failed tasks. A failed state indicates an unrecoverable failure.

摘要翻译： 数据或其他数据单元的轨迹从主存储系统复制到辅助存储系统。 对于多轨或多数据单元传送，传送与一连串相关的一组轨道或数据单元。 在主存储系统上定义相应的任务，用于监视组中每个相应数据单元的传送进度。 维护一个状态，以响应每个任务的进度监视组的转移进度。 当没有失败的任务时，选择正常状态。 当出现故障时选择恢复状态，并确定剩余任务的状态。 在恢复状态之后选择重试状态以重试失败的任务。 失败的状态表示不可恢复的故障。

公开(公告)号：US20120221823A1

公开(公告)日：2012-08-30

申请号：US13467530

申请日：2012-05-09

申请人： Michael T. Benhase ,  Theresa M. Brown ,  Lokesh M. Gupta ,  Rivka M. Matosevich ,  Carol S. Mellgren ,  Gail A. Spear

发明人： Michael T. Benhase ,  Theresa M. Brown ,  Lokesh M. Gupta ,  Rivka M. Matosevich ,  Carol S. Mellgren ,  Gail A. Spear

IPC分类号： G06F12/02

CPC分类号： G06F11/1451

摘要： Provided are techniques for, in response to establishing each incremental virtual copy from a source to a target, creating a target change recording structure for the target. While performing destage to a source data block at the source, it is determined that there is at least one incremental virtual copy target for this source data block. For each incremental virtual copy relationship where the source data block is newer than the incremental virtual copy relationship and an indicator is set in a target inheritance structure on the target for a corresponding target data block, the source data block is copied to each corresponding target data block, and an indicator is set in each target change recording structure on each target for the target data block corresponding to the source data block being destaged.

摘要翻译： 提供了用于响应于从源到目标建立每个增量虚拟副本的技术，为目标创建目标改变记录结构。 在源处对源数据块执行转储时，确定该源数据块至少有一个增量虚拟复制目标。 对于源数据块比增量虚拟副本关系更新的每个增量虚拟副本关系，并且在对象的目标数据块的目标上的目标继承结构中设置指示符，将源数据块复制到每个相应的目标数据 块，并且在对应于正在流逝的源数据块的目标数据块的每个目标上的每个目标改变记录结构中设置指示符。

公开(公告)号：US08433870B2

公开(公告)日：2013-04-30

申请号：US12902934

申请日：2010-10-12

申请人： Michael T. Benhase ,  Theresa M. Brown ,  Lokesh M. Gupta ,  Rivka M. Matosevich ,  Carol S. Mellgren ,  Gail A. Spear

发明人： Michael T. Benhase ,  Theresa M. Brown ,  Lokesh M. Gupta ,  Rivka M. Matosevich ,  Carol S. Mellgren ,  Gail A. Spear

IPC分类号： G06F12/16 ,  G06F17/30

CPC分类号： G06F11/1451

摘要： Provided are techniques for, in response to establishing each incremental virtual copy from a source to a target, creating a target change recording structure for the target. While performing destage to a source data block at the source, it is determined that there is at least one incremental virtual copy target for this source data block. For each incremental virtual copy relationship where the source data block is newer than the incremental virtual copy relationship and an indicator is set in a target inheritance structure on the target for a corresponding target data block, the source data block is copied to each corresponding target data block, and an indicator is set in each target change recording structure on each target for the target data block corresponding to the source data block being destaged.

公开(公告)号：US20120254122A1

公开(公告)日：2012-10-04

申请号：US13076383

申请日：2011-03-30

申请人： Michael T. Benhase ,  Theresa M. Brown ,  Lokesh M. Gupta ,  Carol S. Mellgren ,  Gail A. Spear

发明人： Michael T. Benhase ,  Theresa M. Brown ,  Lokesh M. Gupta ,  Carol S. Mellgren ,  Gail A. Spear

IPC分类号： G06F17/30

CPC分类号： G06F11/1448 ,  G06F2201/84

摘要： A method for providing rolling continuous data protection of source data is disclosed. In one embodiment, such a method includes enabling a user to select source data and establish a first interval when point-in-time copies of the source data are generated. The method further enables the user to specify a first number of point-in-time copies to retain at the first interval. The method further enables the user to specify a second number of point-in-time copies to retain at a second interval, wherein the second interval is a (n≧2) multiple of the first interval. The method further enables the user to specify a third number of point-in-time copies to retain at a third interval, wherein the third interval is a (n≧2) multiple of the second interval. A corresponding apparatus and computer program product are also disclosed.

摘要翻译： 公开了一种用于提供源数据的滚动连续数据保护的方法。 在一个实施例中，这种方法包括使得用户能够选择源数据并且在产生源数据的时间点副本时建立第一间隔。 该方法还使得用户可以指定第一数量的时间点副本以在第一间隔保持。 该方法还允许用户指定第二数量的时间点副本以保持在第二间隔，其中第二间隔是第一间隔的（n≥2）倍。 该方法还使得用户可以指定第三数量的时间点副本以保持在第三间隔，其中第三间隔是第二间隔的（n≥2）倍。 还公开了相应的装置和计算机程序产品。

公开(公告)号：US20120089795A1

公开(公告)日：2012-04-12

申请号：US12902934

申请日：2010-10-12

申请人： Michael T. Benhase ,  Theresa M. Brown ,  Lokesh M. Gupta ,  Rivka M. Matosevich ,  Carol S. Mellgren ,  Gail A. Spear

发明人： Michael T. Benhase ,  Theresa M. Brown ,  Lokesh M. Gupta ,  Rivka M. Matosevich ,  Carol S. Mellgren ,  Gail A. Spear

IPC分类号： G06F12/16

CPC分类号： G06F11/1451

摘要： Provided are techniques for, in response to establishing each incremental virtual copy from a source to a target, creating a target change recording structure for the target. While performing destage to a source data block at the source, it is determined that there is at least one incremental virtual copy target for this source data block. For each incremental virtual copy relationship where the source data block is newer than the incremental virtual copy relationship and an indicator is set in a target inheritance structure on the target for a corresponding target data block, the source data block is copied to each corresponding target data block, and an indicator is set in each target change recording structure on each target for the target data block corresponding to the source data block being destaged.

公开(公告)号：US20100049928A1

公开(公告)日：2010-02-25

申请号：US12197183

申请日：2008-08-22

申请人： Theodore T. Harris, JR. ,  Matthew J. Kalos ,  Steven E. Klein ,  Gail A. Spear

发明人： Theodore T. Harris, JR. ,  Matthew J. Kalos ,  Steven E. Klein ,  Gail A. Spear

IPC分类号： G06F12/16

CPC分类号： G06F11/2064 ,  G06F11/2074 ,  G06F2201/82 ,  G06F2201/835

摘要： A method, system, and computer program product to preserve data integrity in a mirror and copy environment is disclosed herein. In one embodiment, a method may include receiving a write command and data from a host device. The method may further include writing the data to a primary storage device and attaching a primary sequence number associated with the primary storage device to the write command, thereby providing a numbered write command with a command sequence number. The numbered write command may then be transmitted to a secondary storage device. The method may further include comparing the command sequence number to a secondary sequence number associated with the secondary storage device. If the command sequence number matches the secondary sequence number, then the command may be executed. Otherwise, it may be ignored.

摘要翻译： 本文公开了一种在镜像和复制环境中保护数据完整性的方法，系统和计算机程序产品。 在一个实施例中，一种方法可以包括从主机设备接收写命令和数据。 该方法还可以包括将数据写入主存储设备并将与主存储设备相关联的主序列号附加到写命令，从而提供具有命令序列号的编号写命令。 然后可以将编号的写入命令发送到辅助存储设备。 该方法还可以包括将命令序列号与与辅助存储设备相关联的次序列号进行比较。 如果命令序列号与二次序列号匹配，则可以执行该命令。 否则可能会被忽略。

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。

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.

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。