公开(公告)号：US07882081B2

公开(公告)日：2011-02-01

申请号：US10231617

申请日：2002-08-30

申请人： Roger Keith Stager ,  Don Alvin Trimmer ,  Craig Anthony Johnston ,  Yafen Peggy Chang ,  Jerry Kai Lau

发明人： Roger Keith Stager ,  Don Alvin Trimmer ,  Craig Anthony Johnston ,  Yafen Peggy Chang ,  Jerry Kai Lau

IPC分类号： G06F7/00

CPC分类号： G06F17/30067

摘要： A system for the storage and retrieval of data files includes a data disk, a configuration disk and a controller. Each data file includes one or more data blocks, each data block comprising a data section. The data disk stores the data blocks and is divided into a plurality of block groups. The configuration disk stores a copy of at least a portion of the corresponding meta-data. The controller controls both the data disk and the configuration disk.

摘要翻译： 用于存储和检索数据文件的系统包括数据盘，配置盘和控制器。 每个数据文件包括一个或多个数据块，每个数据块包括数据段。 数据盘存储数据块并被分成多个块组。 配置盘存储对应元数据的至少一部分的副本。 控制器控制数据磁盘和配置磁盘。

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。

公开(公告)号：US07487009B2

公开(公告)日：2009-02-03

申请号：US11294955

申请日：2005-12-06

申请人： Don Alvin Trimmer ,  Roger Stager ,  Craig Anthony Johnston ,  Rico Blaser

发明人： Don Alvin Trimmer ,  Roger Stager ,  Craig Anthony Johnston ,  Rico Blaser

IPC分类号： G06F7/00

CPC分类号： G06F3/0632 ,  G06F3/0605 ,  G06F3/0686 ,  G11B15/68

摘要： The present invention is a tape library comprising both a small front-end portion and a larger back-end portion. The front-end portion is a visible virtual or physical tape library; and the back-end portion is a large invisible virtual or physical tape vault. The DPA is a typical DPA which only sees the front-end library. If desired, all messages regarding the importing and exporting of tapes are reviewed by an agent. The agent manages the automatic transfer of tapes between the front-end and the back-end, and notifies the user when a manual import or export is needed. This greatly reduces both the amount of hardware required to establish a virtual or physical tape library and also reduces the amount of labor required by a user to physically import and export tapes. If both the front-end library and the back-end vault are virtual and reside on the same virtual tape library appliance, no data movement is necessary and the tapes can be moved merely by performing small software state changes. In this case, manual operation may be acceptable.

摘要翻译： 本发明是包括小前端部分和较大后端部分的磁带库。 前端部分是可见的虚拟或物理磁带库; 并且后端部分是大的不可见虚拟或物理磁带库。 DPA是一个典型的DPA，只能看到前端库。 如果需要，有关导入和导出磁带的所有消息都由代理审查。 代理管理磁带在前端和后端之间的自动传输，并在需要手动导入或导出时通知用户。 这大大减少了建立虚拟或物理磁带库所需的硬件数量，并且还减少了用户实际导入和导出磁带所需的人力。 如果前端库和后端保管库都是虚拟的，并且驻留在同一个虚拟磁带库设备上，则不需要数据移动，只能通过执行小型软件状态更改来移动磁带。 在这种情况下，手动操作是可以接受的。

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。

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。

公开(公告)号：US08812456B2

公开(公告)日：2014-08-19

申请号：US13436554

申请日：2012-03-30

申请人： Vinod Kumar Daga ,  Craig Anthony Johnston ,  Ling Zheng

发明人： Vinod Kumar Daga ,  Craig Anthony Johnston ,  Ling Zheng

IPC分类号： G06F17/30

CPC分类号： G06F17/30303 ,  G06F17/30079 ,  G06F17/3015 ,  G06F17/30156

摘要： A method performed in a system that has a plurality of volumes stored to storage hardware, the method including generating, for each of the volumes, a respective space saving potential iteratively over time and scheduling space saving operations among the plurality of volumes by analyzing each of the volumes for space saving potential and assigning priority of resources based at least in part on space saving potential.

摘要翻译： 一种在具有存储到存储硬件的多个卷的系统中执行的方法，所述方法包括针对每个卷生成随时间迭代的相应的空间节省潜力，并且通过分析每个卷中的每个 节省空间的潜力，并至少部分依赖节省空间的潜力来分配资源的优先级。

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。

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。

公开(公告)号：US07069466B2

公开(公告)日：2006-06-27

申请号：US10218249

申请日：2002-08-14

申请人： Don Alvin Trimmer ,  Roger Keith Stager ,  Craig Anthony Johnston ,  Rico Blaser

发明人： Don Alvin Trimmer ,  Roger Keith Stager ,  Craig Anthony Johnston ,  Rico Blaser

IPC分类号： G06F11/00

CPC分类号： G06F11/1458

摘要： A method and system for copying backup data is disclosed. Backup data may be copied to a first virtual tape library in the same format as it would be copied to a physical tape library. The backup data may also be electronically copied to a second virtual tape library or to a physical tape library.

摘要翻译： 公开了一种用于复制备份数据的方法和系统。 备份数据可能会以与将被复制到物理磁带库相同的格式复制到第一个虚拟磁带库。 备份数据也可以被电子地复制到第二虚拟磁带库或物理磁带库。

公开(公告)号：US06973369B2

公开(公告)日：2005-12-06

申请号：US10387319

申请日：2003-03-12

申请人： Don Alvin Trimmer ,  Roger Stager ,  Craig Anthony Johnston ,  Rico Blaser

发明人： Don Alvin Trimmer ,  Roger Stager ,  Craig Anthony Johnston ,  Rico Blaser

IPC分类号： G06F3/06 ,  G06F7/00 ,  G06F12/00 ,  G11B15/68

CPC分类号： G06F3/0632 ,  G06F3/0605 ,  G06F3/0686 ,  G11B15/68

摘要： The present invention is a tape library comprising both a small front-end portion and a larger back-end portion. The front-end portion is a visible virtual or physical tape library; and the back-end portion is a large invisible virtual or physical tape vault. The DPA is a typical DPA which only sees the front-end library. If desired, all messages regarding the importing and exporting of tapes are reviewed by an agent. The agent manages the automatic transfer of tapes between the front-end and the back-end, and notifies the user when a manual import or export is needed. This greatly reduces both the amount of hardware required to establish a virtual or physical tape library and also reduces the amount of labor required by a user to physically import and export tapes. If both the front-end library and, the back-end vault are virtual and reside on the same virtual tape library appliance, no data movement is necessary and the tapes can be moved merely by performing small software state changes. In this case, manual operation may be acceptable.

摘要翻译： 本发明是包括小前端部分和较大后端部分的磁带库。 前端部分是可见的虚拟或物理磁带库; 并且后端部分是大的不可见虚拟或物理磁带库。 DPA是一个典型的DPA，只能看到前端库。 如果需要，有关导入和导出磁带的所有消息都由代理审查。 代理管理磁带在前端和后端之间的自动传输，并在需要手动导入或导出时通知用户。 这大大减少了建立虚拟或物理磁带库所需的硬件数量，并且还减少了用户实际导入和导出磁带所需的人力。 如果前端库和后端保管库都是虚拟的，并且驻留在同一虚拟磁带库设备上，则不需要数据移动，只能通过执行小型软件状态更改来移动磁带。 在这种情况下，手动操作是可以接受的。