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1. 发明授权

US08892834B2 Cyclic point-in-time-copy architecture with data deduplication 有权
标题翻译：具有重复数据删除功能的循环时间点复制体系结构
公开(公告)号：US08892834B2
公开(公告)日：2014-11-18
申请号：US13459159
申请日：2012-04-28
申请人： Michael Thomas Benhase, Jr. , Theresa Mary Brown , Lokesh Mohan Gupta , Carol Santich Mellgren
发明人： Michael Thomas Benhase, Jr. , Theresa Mary Brown , Lokesh Mohan Gupta , Carol Santich Mellgren
IPC分类号： G06F12/16 , G06F3/06
CPC分类号： G06F3/065 , G06F3/061 , G06F3/067
摘要： A method for performing a write to a volume x in a cyclic point-in-time-copy architecture is described. In one embodiment, such a method includes determining whether the volume x has a child volume. The method then determines whether the target bit maps (TBMs) of both the volume x and the child volume are set. If the TBMs are set, the method finds a higher source (HS) volume from which to copy the desired data to the child volume. Once the HS volume is found, the method determines whether the HS volume and the child volume are the same volume. If the HS volume and the child volume are not the same volume, the method copies the data from the HS volume to the child volume. The method then performs the write to the volume x.
摘要翻译：描述了在循环时间点复制架构中对卷x进行写入的方法。在一个实施例中，这种方法包括确定卷x是否具有子卷。然后，该方法确定是否设置了卷x和子卷的目标比特映射（TBM）。如果设置了TBM，则该方法将找到更高的源（HS）卷，从该卷将所需数据复制到子卷。一旦找到HS卷，该方法确定HS卷和子卷是否是相同的卷。如果HS卷和子卷的卷不相同，则该方法将数据从HS卷复制到子卷。该方法然后执行对卷x的写入。

2. 发明授权

US08782362B2 Cyclic point-in-time-copy architecture with data deduplication 失效
标题翻译：具有重复数据删除功能的循环时间点复制体系结构
公开(公告)号：US08782362B2
公开(公告)日：2014-07-15
申请号：US13043416
申请日：2011-03-08
申请人： Michael Thomas Benhase, Jr. , Theresa Mary Brown , Lokesh Mohan Gupta , Carol Santich Mellgren
发明人： Michael Thomas Benhase, Jr. , Theresa Mary Brown , Lokesh Mohan Gupta , Carol Santich Mellgren
IPC分类号： G06F12/02
CPC分类号： G06F3/065 , G06F3/061 , G06F3/067
摘要： A method for performing a write to a volume x in a cyclic point-in-time-copy architecture is described. In one embodiment, such a method includes determining whether the volume x has a child volume. The method then determines whether the target bit maps (TBMs) of both the volume x and the child volume are set. If the TBMs are set, the method finds a higher source (HS) volume from which to copy the desired data to the child volume. Once the HS volume is found, the method determines whether the HS volume and the child volume are the same volume. If the HS volume and the child volume are not the same volume, the method copies the data from the HS volume to the child volume. The method then performs the write to the volume x. A corresponding computer program product is also described.
摘要翻译：描述了在循环时间点复制架构中对卷x进行写入的方法。在一个实施例中，这种方法包括确定卷x是否具有子卷。然后，该方法确定是否设置了卷x和子卷的目标比特映射（TBM）。如果设置了TBM，则该方法将找到更高的源（HS）卷，从该卷将所需数据复制到子卷。一旦找到HS卷，该方法确定HS卷和子卷是否是相同的卷。如果HS卷和子卷的卷不相同，则该方法将数据从HS卷复制到子卷。该方法然后执行对卷x的写入。还描述了相应的计算机程序产品。

3. 发明授权

US08667237B2 Deleting relations in multi-target, point-in-time-copy architectures with data deduplication 有权
公开(公告)号：US08667237B2
公开(公告)日：2014-03-04
申请号：US13043398
申请日：2011-03-08
申请人： Michael Thomas Benhase, Jr. , Theresa Mary Brown , Lokesh Mohan Gupta , Carol Santich Mellgren
发明人： Michael Thomas Benhase, Jr. , Theresa Mary Brown , Lokesh Mohan Gupta , Carol Santich Mellgren
IPC分类号： G06F12/12
CPC分类号： G06F3/065 , G06F3/06 , G06F3/0604 , G06F3/0605 , G06F3/061 , G06F3/0634 , G06F3/0641 , G06F3/067 , G06F12/12
摘要： A method for deleting a relation between a source and a target in a multi-target architecture is described. The multi-target architecture includes a source and multiple targets mapped thereto. In one embodiment, such a method includes initially identifying a relation for deletion from the multi-target architecture. A target associated with the relation is then identified. The method then identifies a sibling target that inherits data from the target. Once the target and the sibling target are identified, the method copies the data from the target to the sibling target. The relation between the source and the target is then deleted. A corresponding computer program product is also disclosed and claimed herein.

4. 发明授权

US08458134B2 Near continuous space-efficient data protection 有权
标题翻译：靠近连续空间高效的数据保护
公开(公告)号：US08458134B2
公开(公告)日：2013-06-04
申请号：US13076383
申请日：2011-03-30
申请人： Michael Thomas Benhase , Theresa Mary Brown , Lokesh Mohan Gupta , Carol Santich Mellgren , Gail Andrea Spear
发明人： Michael Thomas Benhase , Theresa Mary Brown , Lokesh Mohan Gupta , Carol Santich Mellgren , Gail Andrea Spear
IPC分类号： G06F17/00
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。该方法还允许用户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。

5. 发明授权

US08832379B2 Efficient cache volume SIT scans 有权
标题翻译：高效缓存卷SIT扫描
公开(公告)号：US08832379B2
公开(公告)日：2014-09-09
申请号：US13617130
申请日：2012-09-14
申请人： Kevin John Ash , Michael Thomas Benhase , Lokesh Mohan Gupta , Kenneth Wayne Todd
发明人： Kevin John Ash , Michael Thomas Benhase , Lokesh Mohan Gupta , Kenneth Wayne Todd
IPC分类号： G06F12/08
CPC分类号： G06F12/0895 , G06F12/0802 , G06F12/0871 , G06F2212/462
摘要： A processor, operable in a computing storage environment, allocates portions of a Scatter Index Table (SIT) disproportionately between a larger portion dedicated for meta data tracks, and a smaller portion dedicated for user data tracks, and processes a storage operation through the disproportionately allocated portions of the SIT using an allocated number of Task Control Blocks (TCB).
摘要翻译：一种在计算存储环境中可操作的处理器，在专用于元数据轨道的较大部分和专用于用户数据轨道的较小部分之间不成比例地分配分散索引表（SIT）的部分，并且通过不成比例地分配使用分配数量的任务控制块（TCB）的部分SIT。

6. 发明申请

US20120131293A1 DATA ARCHIVING USING DATA COMPRESSION OF A FLASH COPY 有权
标题翻译：使用闪存拷贝数据压缩的数据存档
公开(公告)号：US20120131293A1
公开(公告)日：2012-05-24
申请号：US12950992
申请日：2010-11-19
申请人： Michael Thomas Benhase , Lokesh Mohan Gupta , Yu-Cheng Hsu , Alfred Emilio Sanchez
发明人： Michael Thomas Benhase , Lokesh Mohan Gupta , Yu-Cheng Hsu , Alfred Emilio Sanchez
IPC分类号： G06F12/16 , G06F12/00
CPC分类号： G06F3/065 , G06F11/1076 , G06F2211/1014
摘要： Embodiments of the disclosure relate to archiving data in a storage system. An exemplary embodiment comprises making a flash copy of data in a source volume, compressing data in the flash copy wherein each track of data is compressed into a set of data pages, and storing the compressed data pages in a target volume. Data extents for the target volume may be allocated from a pool of compressed data extents. After each stride worth of data is compressed and stored in the target volume, data may be destaged to avoid destage penalties. Data from the target volume may be decompressed from a flash copy of the target volume in a reverse process to restore each data track, when the archived data is needed. Data may be compressed and uncompressed using a Lempel-Ziv-Welch process.
摘要翻译：本公开的实施例涉及在存储系统中归档数据。示例性实施例包括在源卷中进行数据的闪速复制，压缩闪存中的数据，其中数据的每个轨道被压缩成一组数据页，并将压缩的数据页存储在目标卷中。可以从压缩数据盘区池中分配目标卷的数据盘区。在每一步数据的数据被压缩并存储在目标卷中之后，数据可能会被排除以避免流失的惩罚。当需要归档数据时，目标卷的数据可以以相反的过程从目标卷的闪存副本中解压缩，以恢复每个数据轨道。数据可以使用Lempel-Ziv-Welch进程进行压缩和解压缩。

7. 发明授权

US09396102B2 Recovery from cache and NVS out of sync 有权
公开(公告)号：US09396102B2
公开(公告)日：2016-07-19
申请号：US13617076
申请日：2012-09-14
申请人： Kevin John Ash , Michael Thomas Benhase , Lokesh Mohan Gupta , Kenneth Wayne Todd
发明人： Kevin John Ash , Michael Thomas Benhase , Lokesh Mohan Gupta , Kenneth Wayne Todd
IPC分类号： G06F12/08 , G06F11/16 , G06F12/02 , G06F11/00 , G06F11/14 , G06F11/20
CPC分类号： G06F12/0238 , G06F11/004 , G06F11/1441 , G06F11/1666 , G06F11/20 , G06F12/0871 , G06F2212/286
摘要： For cache/data management in a computing storage environment, incoming data segments into a Non Volatile Storage (NVS) device of the computing storage environment are validated against a bitmap to determine if the incoming data segments are currently in use. Those of the incoming data segments determined to be currently in use are designated to the computing storage environment to protect data integrity.

8. 发明授权

US08478945B2 Dynamic management of destage tasks in a storage controller 有权
标题翻译：动态管理存储控制器中的目标任务
公开(公告)号：US08478945B2
公开(公告)日：2013-07-02
申请号：US12697385
申请日：2010-02-01
申请人： Kevin John Ash , Lokesh Mohan Gupta
发明人： Kevin John Ash , Lokesh Mohan Gupta
IPC分类号： G06F12/00
CPC分类号： G06F12/0868 , G06F12/0804 , G06F2212/261 , G06F2212/502
摘要： Method, system, and computer program product embodiments for facilitating data transfer from a write cache and NVS via a device adapter to a pool of storage devices by a processor or processors are provided. The processor(s) adaptively varies the destage rate based on the current occupancy of the NVS for a particular storage device and stage activity related to that storage device. The stage activity includes one or more of the storage device stage activity, device adapter stage activity, device adapter utilized bandwidth and the read/write speed of the storage device. These factors are generally associated with read response time in the event of a cache miss and not ordinarily associated with dynamic management of the destage rate. This combination maintains the desired overall occupancy of the NVS while improving response time performance.
摘要翻译：提供了方法，系统和计算机程序产品实施例，用于促进通过处理器或处理器从写入高速缓存和NVS经由设备适配器到存储设备池的数据传输。处理器根据特定存储设备的NVS的当前占用率和与该存储设备相关的阶段活动自适应地改变流水率。舞台活动包括存储设备舞台活动，设备适配器舞台活动，设备适配器利用带宽和存储设备的读/写速度中的一个或多个。这些因素通常与高速缓存未命中的读取响应时间相关联，并且通常不与流动速率的动态管理相关联。这种组合在提高响应时间性能的同时保持NVS的期望总体占用。

9. 发明授权

US07975169B2 Memory preserved cache to prevent data loss 失效
标题翻译：内存保存缓存以防止数据丢失
公开(公告)号：US07975169B2
公开(公告)日：2011-07-05
申请号：US12132087
申请日：2008-06-03
申请人： Kevin John Ash , Michael Thomas Benhase , Lokesh Mohan Gupta , Alfred Emilio Sanchez , Kenneth Wayne Todd
发明人： Kevin John Ash , Michael Thomas Benhase , Lokesh Mohan Gupta , Alfred Emilio Sanchez , Kenneth Wayne Todd
IPC分类号： G06F11/00
CPC分类号： G06F12/0804 , G06F11/1441 , G06F11/1666 , G06F11/2023 , G06F11/2038 , G06F11/2043 , G06F12/0866
摘要： A method, system, and computer program product for preserving data in a storage subsystem having dual cache and dual nonvolatile storage (NVS) through a failover from a failed cluster to a surviving cluster is provided. A memory preserved indicator is initiated to mark tracks on a cache of the surviving cluster to be preserved, the tracks having an image in an NVS of the failed cluster. A destage operation is performed to destage the marked tracks. Subsequent to a determination that each of the marked tracks have been destaged, the memory preserved indicator is disabled to remove the mark from the tracks. If the surviving cluster reboots previous to each of the marked tracks having been destaged, the cache is verified as a memory preserved cache, the marked tracks are retained for processing while all unmarked tracks are removed, and the marked tracks are processed.
摘要翻译：提供了一种用于通过从故障集群到存活集群的故障转移来保存具有双缓存和双非易失性存储（NVS）的存储子系统中的数据的方法，系统和计算机程序产品。启动存储器保存的指示符以标记要保留的存活簇的高速缓存上的轨道，轨道在故障集群的NVS中具有图像。执行了一个停船操作，以排除标记的轨迹。在确定每个标记的轨道已经停止之后，禁用存储器保留指示符以从轨道中移除标记。如果幸存的群集在已经去往每个标记的轨道之前重新启动，则将高速缓存验证为存储器保存的高速缓存，标记的轨道被保留用于处理，而所有未标记的轨道被移除，并且标记的轨道被处理。

10. 发明授权

US07930588B2 Deferred volume metadata invalidation 有权
标题翻译：延迟卷元数据无效
公开(公告)号：US07930588B2
公开(公告)日：2011-04-19
申请号：US12361009
申请日：2009-01-28
申请人： Lawrence Carter Blount , Lokesh Mohan Gupta , Carol Santich Melgren , Kenneth Wayne Todd
发明人： Lawrence Carter Blount , Lokesh Mohan Gupta , Carol Santich Melgren , Kenneth Wayne Todd
IPC分类号： G06F11/00
CPC分类号： G06F12/0866 , G06F2212/264 , G06F2212/284 , G06F2212/466 , H04L67/1097 , H04L67/2842
摘要： A method, system, and computer program product for managing modified metadata in a storage controller cache pursuant to a recovery action by a processor in communication with a memory device is provided. A count of modified metadata tracks for a storage rank is compared against a predetermined criterion. If the predetermined criterion is met, a storage volume having the storage rank is designated with a metadata invalidation flag to defer metadata invalidation of the modified metadata tracks until after the recovery action is performed.
摘要翻译：提供了一种用于根据处理器与存储器设备通信的恢复动作来管理存储控制器高速缓存中的修改的元数据的方法，系统和计算机程序产品。将存储等级的经修改的元数据轨道的计数与预定标准进行比较。如果满足预定标准，则使用元数据无效标志指定具有存储等级的存储卷，以延迟修改的元数据轨迹的元数据无效，直到执行恢复动作为止。

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