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1. 发明申请

US20110145523A1 ELIMINATING DUPLICATE DATA BY SHARING FILE SYSTEM EXTENTS 有权
标题翻译：通过共享文件系统来排除复制数据
公开(公告)号：US20110145523A1
公开(公告)日：2011-06-16
申请号：US12955770
申请日：2010-11-29
申请人： Vivek Gupta , Ameet Pyati , Satish Singhal , Pawan Saxena
发明人： Vivek Gupta , Ameet Pyati , Satish Singhal , Pawan Saxena
IPC分类号： G06F12/00
CPC分类号： G06F17/30156 , G06F3/0608 , G06F3/0619 , G06F3/0641 , G06F3/0686 , G06F2003/0694
摘要： A hardware and/or software facility to enable emulated storage devices to share data stored on physical storage resources of a storage system. The facility may be implemented on a virtual tape library (VTL) system configured to back up data sets that have a high level of redundancy on multiple virtual tapes. The facility organizes all or a portion of the physical storage resources according to a common store data layout. By enabling emulated storage devices to share data stored on physical storage resources, the facility enables deduplication across the emulated storage devices irrespective of the emulated storage device to which the data is or was originally written, thereby eliminating duplicate data on the physical storage resources and improving the storage consumption of the emulated storage devices on the physical storage resources.
摘要翻译：一种用于使仿真存储设备共享存储在存储系统的物理存储资源上的数据的硬件和/或软件设施。该设施可以在配置为备份在多个虚拟磁带上具有高冗余级别的数据集的虚拟磁带库（VTL）系统上实现。该设施根据公共商店数据布局组织物理存储资源的全部或部分。通过启用仿真存储设备来共享存储在物理存储资源上的数据，该设施可以在仿真存储设备上进行重复数据删除，而不管数据是或最初写入的仿真存储设备，从而消除物理存储资源上的重复数据，并改进模拟存储设备对物理存储资源的存储消耗。

2. 发明申请

US20100281081A1 PREDICTING SPACE RECLAMATION IN DEDUPLICATED DATASETS 有权
标题翻译：预测在重复数据中的空间恢复
公开(公告)号：US20100281081A1
公开(公告)日：2010-11-04
申请号：US12432220
申请日：2009-04-29
申请人： Roger Keith Stager , Pawan Saxena
发明人： Roger Keith Stager , Pawan Saxena
IPC分类号： G06F17/30
CPC分类号： G06F9/5022
摘要： A technique for determining an amount of storage space that would be recovered in a storage system by deleting a list of logical containers of data is provided. In one embodiment, data blocks referenced by the list of files are first identified. The data blocks (e.g., deduplicated data blocks) may be referenced by two or more files. A number of references made by the identified list of files to each data block is compared against a number of references made by all files stored in a dataset of the storage system. A total amount of storage space is then calculated based on a sum of storage spaces utilized by each data block for which the two reference numbers match. This total amount of storage space is the storage space that would be reclaimed through deletion of the identified list of files.
摘要翻译：提供了通过删除数据的逻辑容器列表来确定将在存储系统中恢复的存储空间量的技术。在一个实施例中，首先识别由文件列表引用的数据块。数据块（例如，重复数据删除的数据块）可以由两个或更多个文件引用。由识别的每个数据块的列表引用的许多引用与存储在存储系统的数据集中的所有文件的引用数进行比较。然后基于两个参考号码匹配的每个数据块所使用的存储空间的总和来计算总量的存储空间。存储空间的总量是通过删除所识别的文件列表将被回收的存储空间。

3. 发明申请

US20080147756A1 METHOD AND SYSTEM FOR RESTORING A VOLUME IN A CONTINUOUS DATA PROTECTION SYSTEM 有权
标题翻译：在连续数据保护系统中恢复一个体积的方法和系统
公开(公告)号：US20080147756A1
公开(公告)日：2008-06-19
申请号：US12040276
申请日：2008-02-29
申请人： Roger Keith Stager , Donald Alvin Trimmer , Pawan Saxena , Randall Johnson , Craig Anthony Johnston , Yafen Peggy Chang , Rico Blaser
发明人： Roger Keith Stager , Donald Alvin Trimmer , Pawan Saxena , Randall Johnson , Craig Anthony Johnston , Yafen Peggy Chang , Rico Blaser
IPC分类号： G06F12/00
CPC分类号： G06F11/2082 , G06F11/2074 , G06F2201/855
摘要： A system for synchronizing a secondary volume with a primary volume in a continuous data protection system includes scanning means for scanning a region of the primary volume; comparing means for comparing the scanned region with a corresponding region of the secondary volume; storing means for storing an identification of the scanned region in a compare delta map when the comparing means returns a discrepancy between the scanned region and the corresponding region; copying means for copying data from the primary volume to the secondary volume, using the compare delta map as a guide to locate the data to copy; and revising means for revising the compare delta map by removing any changes made to the primary volume during a scan interval, which is a period of time required to scan the primary volume.
摘要翻译：用于在连续数据保护系统中同步辅助卷与主卷的系统包括用于扫描主卷的区域的扫描装置; 比较装置，用于将扫描区域与次体积的对应区域进行比较; 存储装置，用于当比较装置返回扫描区域和对应区域之间的差异时，将扫描区域的标识存储在比较增量图中; 用于将数据从主卷复制到副卷的复制装置，使用比较增量图作为定位要复制的数据的指南; 以及用于通过在扫描间隔期间删除对主卷所做的任何改变（这是扫描主卷所需的时间）来修改比较增量映射的修改装置。

4. 发明授权

US07325159B2 Method and system for data recovery in a continuous data protection system 有权
标题翻译：连续数据保护系统中数据恢复的方法和系统
公开(公告)号：US07325159B2
公开(公告)日：2008-01-29
申请号：US10772017
申请日：2004-02-04
申请人： Roger Keith Stager , Donald Alvin Trimmer , Pawan Saxena , Randall Johnson , Craig Anthony Johnston , Yafen Peggy Chang , Rico Blaser
发明人： Roger Keith Stager , Donald Alvin Trimmer , Pawan Saxena , Randall Johnson , Craig Anthony Johnston , Yafen Peggy Chang , Rico Blaser
IPC分类号： G06F11/00
CPC分类号： G06F11/1435 , G06F11/1446 , G06F11/1469 , G06F11/2071 , G06F2201/84 , G06F2201/855
摘要： In a continuous data protection system having a primary volume and a secondary volume, a method for data recovery begins by selecting a snapshot of the primary volume to be recovered and a location on which the snapshot is to be loaded. A point in time (PIT) map is created for the selected snapshot, and the selected snapshot is loaded at the selected location. A data block from the PIT map is resolved to determine which block on the secondary volume is presented as being part of the snapshot. The snapshot is accessed via a host computer as if the snapshot was the primary volume at an earlier point in time, corresponding to the time of the selected snapshot.
摘要翻译：在具有主卷和次卷的连续数据保护系统中，通过选择要恢复的主卷的快照和要在其上加载快照的位置，开始数据恢复的方法。为所选快照创建时间点（PIT）映射，并将所选快照加载到所选位置。来自PIT映射的数据块被解析，以确定辅助卷上的哪个块被呈现为快照的一部分。快照可以通过主机访问，就好像快照是较早时间点的主卷，与所选快照的时间相对应。

5. 发明授权

US07306673B2 Furnace purification and metal fluoride crystal grown in a purified furnace 失效
标题翻译：炉净化和金属氟化物晶体在纯化炉中生长
公开(公告)号：US07306673B2
公开(公告)日：2007-12-11
申请号：US10971315
申请日：2004-10-22
申请人： Michelle M. L. Fredholm , Jeffrey T. Kohli , Nicholas LeBlond , Alexandre M. Mayolet , Viktoria Pshenitsyna , Pawan Saxena , Paul M. Schermerhorn
发明人： Michelle M. L. Fredholm , Jeffrey T. Kohli , Nicholas LeBlond , Alexandre M. Mayolet , Viktoria Pshenitsyna , Pawan Saxena , Paul M. Schermerhorn
IPC分类号： C30B11/00
CPC分类号： C30B11/00 , C30B29/12
摘要： The invention is directed to a method for growing metal fluoride crystals suitable for use in below 200 nm optical lithography systems, the method comprising including at least the step of heating a crystal growth furnace to a temperature in the range of 1400-2000° C. to purify the furnace by removal of sulfur and chlorine prior to using the furnace for growing metal fluoride single crystals.
摘要翻译：本发明涉及一种用于生长适用于200nm以下的光刻系统的金属氟化物晶体的方法，该方法至少包括将晶体生长炉加热到1400-2000℃的温度的步骤。在使用炉子生长金属氟化物单晶之前，通过除去硫和氯来净化炉。

6. 发明授权

US07490103B2 Method and system for backing up data 有权
标题翻译：用于备份数据的方法和系统
公开(公告)号：US07490103B2
公开(公告)日：2009-02-10
申请号：US11051793
申请日：2005-02-04
申请人： Roger Keith Stager , Donald Alvin Trimmer , Pawan Saxena , Craig Anthony Johnston , Yafen Peggy Chang , Rico Blaser
发明人： Roger Keith Stager , Donald Alvin Trimmer , Pawan Saxena , Craig Anthony Johnston , Yafen Peggy Chang , Rico Blaser
IPC分类号： G06F17/00
CPC分类号： G06F11/1469 , G06F11/1466 , G06F2201/82 , G06F2201/84 , Y10S707/99942 , Y10S707/99943 , Y10S707/99944 , Y10S707/99945
摘要： A method and system for generating a snapshot in a consistent state is disclosed. The system comprises a host computer, a primary data storage, a data protection unit, and a secondary data storage. The data protection unit monitors a state of an application which is running on the host computer. The data protection unit generates a snapshot of data stored in a primary data storage when the application is in a consistent state, and stores the snapshot on a secondary storage. In the event of a system failure, the data is recovered using the last snapshot.
摘要翻译：公开了一种用于以一致状态生成快照的方法和系统。该系统包括主计算机，主数据存储器，数据保护单元和辅助数据存储器。数据保护单元监视在主计算机上运行的应用程序的状态。当应用处于一致状态时，数据保护单元生成存储在主数据存储器中的数据的快照，并将快照存储在辅助存储器上。在系统故障的情况下，使用最后一个快照恢复数据。

7. 发明授权

US07426617B2 Method and system for synchronizing volumes in a continuous data protection system 有权
标题翻译：用于在连续数据保护系统中同步卷的方法和系统
公开(公告)号：US07426617B2
公开(公告)日：2008-09-16
申请号：US10772642
申请日：2004-02-05
申请人： Roger Keith Stager , Donald Alvin Trimmer , Pawan Saxena , Randall Johnson , Craig Anthony Johnston , Yafen Peggy Chang , Rico Blaser
发明人： Roger Keith Stager , Donald Alvin Trimmer , Pawan Saxena , Randall Johnson , Craig Anthony Johnston , Yafen Peggy Chang , Rico Blaser
IPC分类号： G06F12/00
CPC分类号： G06F11/2082 , G06F11/2074 , G06F2201/855
摘要： A method for synchronizing a secondary volume with a primary volume in a continuous data protection system begins by scanning a region of the primary volume, which is then compared with a corresponding region of the secondary volume. An identification of the scanned region is stored in a compare delta map when the comparison results in a discrepancy between the scanned region and the corresponding region. Data is copied from the primary volume to the secondary volume, using the compare delta map as a guide to locate the data to copy. If the data protection system has failed just prior to the restore process being initiated, it is termed a re-baseline, and the entire primary volume is scanned. If the data protection system is active prior to the restore process being initiated, it is termed a re-synchronization, and is optimized by scanning only select regions of the primary volume.
摘要翻译：在连续数据保护系统中同步辅助卷与主卷的方法通过扫描主卷的区域开始，然后将其与辅助卷的相应区域进行比较。当比较导致扫描区域和对应区域之间的差异时，扫描区域的识别被存储在比较增量图中。将数据从主卷复制到辅助卷，使用比较增量映射作为指导来定位要复制的数据。如果在恢复过程正在启动之前数据保护系统发生故障，则称为重新基准，并扫描整个主卷。如果数据保护系统在恢复过程启动之前处于活动状态，则称为重新同步，并且仅通过扫描主卷的选择区域进行优化。

8. 发明授权

US07315965B2 Method and system for storing data using a continuous data protection system 有权
标题翻译：使用连续数据保护系统存储数据的方法和系统
公开(公告)号：US07315965B2
公开(公告)日：2008-01-01
申请号：US10771613
申请日：2004-02-04
申请人： Roger Keith Stager , Donald Alvin Trimmer , Pawan Saxena , Randall Johnson , Craig Anthony Johnston , Yafen Peggy Chang , Rico Blaser
发明人： Roger Keith Stager , Donald Alvin Trimmer , Pawan Saxena , Randall Johnson , Craig Anthony Johnston , Yafen Peggy Chang , Rico Blaser
IPC分类号： G06F11/00
CPC分类号： G06F11/1471 , G06F11/2074
摘要： A method and system wherein data is structured so that writes may be continuously duplicated and a protected volume may be restored to a particular point in time as desired. Writes are continuously duplicated on a secondary volume and organized into delta maps. The delta maps indicate which memory blocks were written to during a particular time frame.
摘要翻译：一种方法和系统，其中数据被构造成使得写入可以被连续复制，并且受保护的卷可以根据需要恢复到特定的时间点。写入在次要卷上不断重复，并组织成三角洲地图。三角形映射指示在特定时间帧内写入哪些存储器块。

9. 发明授权

US08825969B2 Eliminating duplicate data by sharing file system extents 有权
标题翻译：通过共享文件系统盘区消除重复数据
公开(公告)号：US08825969B2
公开(公告)日：2014-09-02
申请号：US12955770
申请日：2010-11-29
申请人： Vivek Gupta , Ameet Pyati , Satish Singhal , Pawan Saxena
发明人： Vivek Gupta , Ameet Pyati , Satish Singhal , Pawan Saxena
IPC分类号： G06F12/00 , G06F3/06
CPC分类号： G06F17/30156 , G06F3/0608 , G06F3/0619 , G06F3/0641 , G06F3/0686 , G06F2003/0694
摘要： A hardware and/or software facility to enable emulated storage devices to share data stored on physical storage resources of a storage system. The facility may be implemented on a virtual tape library (VTL) system configured to back up data sets that have a high level of redundancy on multiple virtual tapes. The facility organizes all or a portion of the physical storage resources according to a common store data layout. By enabling emulated storage devices to share data stored on physical storage resources, the facility enables deduplication across the emulated storage devices irrespective of the emulated storage device to which the data is or was originally written, thereby eliminating duplicate data on the physical storage resources and improving the storage consumption of the emulated storage devices on the physical storage resources.
摘要翻译：一种用于使仿真存储设备共享存储在存储系统的物理存储资源上的数据的硬件和/或软件设施。该设施可以在配置为备份在多个虚拟磁带上具有高冗余级别的数据集的虚拟磁带库（VTL）系统上实现。该设施根据公共商店数据布局组织物理存储资源的全部或部分。通过启用仿真存储设备来共享存储在物理存储资源上的数据，该设施可以在仿真存储设备上进行重复数据删除，而不管数据是或最初写入的仿真存储设备，从而消除物理存储资源上的重复数据，并改善模拟存储设备对物理存储资源的存储消耗。

10. 发明授权

US08195636B2 Predicting space reclamation in deduplicated datasets 有权
标题翻译：预测重复数据删除数据集中的空间回收
公开(公告)号：US08195636B2
公开(公告)日：2012-06-05
申请号：US12432220
申请日：2009-04-29
申请人： Roger Stager , Pawan Saxena
发明人： Roger Stager , Pawan Saxena
IPC分类号： G06F17/30 , G06F17/00
CPC分类号： G06F9/5022
摘要： A technique for determining an amount of storage space that would be recovered in a storage system by deleting a list of logical containers of data is provided. In one embodiment, data blocks referenced by the list of files are first identified. The data blocks (e.g., deduplicated data blocks) may be referenced by two or more files. A number of references made by the identified list of files to each data block is compared against a number of references made by all files stored in a dataset of the storage system. A total amount of storage space is then calculated based on a sum of storage spaces utilized by each data block for which the two reference numbers match. This total amount of storage space is the storage space that would be reclaimed through deletion of the identified list of files.
摘要翻译：提供了通过删除数据的逻辑容器列表来确定将在存储系统中恢复的存储空间量的技术。在一个实施例中，首先识别由文件列表引用的数据块。数据块（例如，重复数据删除的数据块）可以由两个或更多个文件引用。由识别的每个数据块列表引起的许多参考与存储在存储系统的数据集中的所有文件的引用数进行比较。然后基于两个参考号码匹配的每个数据块所使用的存储空间总和来计算总量的存储空间。存储空间的总量是通过删除所识别的文件列表将被回收的存储空间。

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