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    DETECTION AND CORRECTION OF DROPPED WRITE ERRORS IN A DATA STORAGE SYSTEM
    2.
    发明申请
    DETECTION AND CORRECTION OF DROPPED WRITE ERRORS IN A DATA STORAGE SYSTEM 有权
    数据存储系统中丢弃的写入错误的检测和校正

    公开(公告)号：US20100251072A1

    公开(公告)日：2010-09-30

    申请号：US12813491

    申请日：2010-06-10

    申请人： James L. Hafner ,  Carl E. Jones ,  David R. Kahler ,  Robert A. Kubo ,  David F. Mannenbach ,  Karl A. Nielsen ,  James A. O'Connor ,  Krishnakumar R Surugucchi

    发明人： James L. Hafner ,  Carl E. Jones ,  David R. Kahler ,  Robert A. Kubo ,  David F. Mannenbach ,  Karl A. Nielsen ,  James A. O'Connor ,  Krishnakumar R Surugucchi

    IPC分类号： H03M13/05 ,  G06F11/10

    CPC分类号： G06F11/1076 ,  G06F2211/1057

    摘要： A RAID system is provided for detecting and correcting dropped writes in a storage system. Data and a checksum are written to a storage device, such as a RAID array. The state of the data is classified as being in a “new data, unconfirmed” state. The state of written data is periodically checked, such as with a timer. If the data is in the “new data, unconfirmed” state, it is checked for a dropped write. If a dropped write has occurred, the state of the data is changed to a “single dropped write confirmed” state and the dropped write error is preferably corrected. If no dropped write is detected, the state is changed to a “confirmed good” state. If the data was updated through a read-modified-write prior to being checked for a dropped write event, its state is changed to an “unquantifiable” state.

    摘要翻译： 提供了一种RAID系统，用于检测和纠正存储系统中丢弃的写入。 将数据和校验和写入存储设备，如RAID阵列。 数据的状态被分类为“新数据，未确认”状态。 周期性地检查写入数据的状态，例如使用定时器。 如果数据处于“新数据，未确认”状态，则检查是否丢弃写入。 如果发生了丢弃的写入，则将数据的状态改变为“单个丢弃的写入确认”状态，并且优选地校正丢弃的写入错误。 如果没有检测到丢弃的写入，则状态被改变为“已确认的”状态。 如果在检查丢失的写入事件之前通过读取 - 修改 - 写入更新数据，则其状态将更改为“无法量化”状态。

    DETECTION AND CORRECTION OF DROPPED WRITE ERRORS IN A DATA STORAGE SYSTEM
    3.
    发明申请
    DETECTION AND CORRECTION OF DROPPED WRITE ERRORS IN A DATA STORAGE SYSTEM 失效
    数据存储系统中丢弃的写入错误的检测和校正

    公开(公告)号：US20090055584A1

    公开(公告)日：2009-02-26

    申请号：US11843804

    申请日：2007-08-23

    申请人： James L. Hafner ,  Carl E. Jones ,  David R. Kahler ,  Robert A. Kubo ,  David F. Mannenbach ,  Karl A. Nielsen ,  James A. O'Conner ,  Krishnakumar R. Surugucchi

    发明人： James L. Hafner ,  Carl E. Jones ,  David R. Kahler ,  Robert A. Kubo ,  David F. Mannenbach ,  Karl A. Nielsen ,  James A. O'Conner ,  Krishnakumar R. Surugucchi

    IPC分类号： G06F12/00

    CPC分类号： G06F11/1076 ,  G06F2211/1057

    摘要： Method, system and computer program product are provided for detecting and correcting dropped writes in a storage system. Data and a checksum are written to a storage device, such as a RAID array. The state of the data is classified as being in a “new data, unconfirmed” state. The state of written data is periodically checked, such as with a timer. If the data is in the “new data, unconfirmed” state, it is checked for a dropped write. If a dropped write has occurred, the state of the data is changed to a “single dropped write confirmed” state and the dropped write error is preferably corrected. If no dropped write is detected, the state is changed to a “confirmed good” state. If the data was updated through a read-modified-write prior to being checked for a dropped write event, its state is changed to an “unquantifiable” state.

    摘要翻译： 提供了方法，系统和计算机程序产品，用于检测和纠正存储系统中丢弃的写入。 将数据和校验和写入存储设备，如RAID阵列。 数据的状态被分类为“新数据，未确认”状态。 周期性地检查写入数据的状态，例如使用定时器。 如果数据处于“新数据，未确认”状态，则检查是否丢弃写入。 如果发生了丢弃的写入，则将数据的状态改变为“单个丢弃的写入确认”状态，并且优选地校正丢弃的写入错误。 如果没有检测到丢弃的写入，则状态被改变为“已确认的”状态。 如果在检查丢失的写入事件之前通过读取 - 修改 - 写入更新数据，则其状态将更改为“无法量化”状态。

    Detection and correction of dropped write errors in a data storage system
    5.
    发明授权
    Detection and correction of dropped write errors in a data storage system 有权
    检测和纠正数据存储系统中丢失的写入错误

    公开(公告)号：US07890815B2

    公开(公告)日：2011-02-15

    申请号：US12813491

    申请日：2010-06-10

    申请人： James L. Hafner ,  Carl E. Jones ,  David R. Kahler ,  Robert A. Kubo ,  David F. Mannenbach ,  Karl A. Nielsen ,  James A. O'Conner ,  Krishnakumar S. Rao

    发明人： James L. Hafner ,  Carl E. Jones ,  David R. Kahler ,  Robert A. Kubo ,  David F. Mannenbach ,  Karl A. Nielsen ,  James A. O'Conner ,  Krishnakumar S. Rao

    IPC分类号： G06F11/00

    CPC分类号： G06F11/1076 ,  G06F2211/1057

    摘要： A RAID system is provided for detecting and correcting dropped writes in a storage system. Data and a checksum are written to a storage device, such as a RAID array. The state of the data is classified as being in a “new data, unconfirmed” state. The state of written data is periodically checked, such as with a timer. If the data is in the “new data, unconfirmed” state, it is checked for a dropped write. If a dropped write has occurred, the state of the data is changed to a “single dropped write confirmed” state and the dropped write error is preferably corrected. If no dropped write is detected, the state is changed to a “confirmed good” state. If the data was updated through a read-modified-write prior to being checked for a dropped write event, its state is changed to an “unquantifiable” state.

    摘要翻译： 提供了一种RAID系统，用于检测和纠正存储系统中丢弃的写入。 将数据和校验和写入存储设备，如RAID阵列。 数据的状态被分类为“新数据，未确认”状态。 周期性地检查写入数据的状态，例如使用定时器。 如果数据处于“新数据，未确认”状态，则检查是否丢弃写入。 如果发生了丢弃的写入，则将数据的状态改变为“单个丢弃的写入确认”状态，并且优选地校正丢弃的写入错误。 如果没有检测到丢弃的写入，则状态被改变为“已确认的”状态。 如果在检查丢失的写入事件之前通过读取 - 修改 - 写入更新数据，则其状态将更改为“无法量化”状态。

    Detection and correction of dropped write errors in a data storage system
    6.
    发明授权
    Detection and correction of dropped write errors in a data storage system 失效
    检测和纠正数据存储系统中丢失的写入错误

    公开(公告)号：US07793168B2

    公开(公告)日：2010-09-07

    申请号：US11843804

    申请日：2007-08-23

    申请人： James L. Hafner ,  Carl E. Jones ,  David R. Kahler ,  Robert A. Kubo ,  David F. Mannenbach ,  Karl A. Nielsen ,  James A. O'Conner ,  Krishnakumar S. Rao

    发明人： James L. Hafner ,  Carl E. Jones ,  David R. Kahler ,  Robert A. Kubo ,  David F. Mannenbach ,  Karl A. Nielsen ,  James A. O'Conner ,  Krishnakumar S. Rao

    IPC分类号： G06F11/00

    CPC分类号： G06F11/1076 ,  G06F2211/1057

    摘要： Method, system and computer program product are provided for detecting and correcting dropped writes in a storage system. Data and a checksum are written to a storage device, such as a RAID array. The state of the data is classified as being in a “new data, unconfirmed” state. The state of written data is periodically checked, such as with a timer. If the data is in the “new data, unconfirmed” state, it is checked for a dropped write. If a dropped write has occurred, the state of the data is changed to a “single dropped write confirmed” state and the dropped write error is preferably corrected. If no dropped write is detected, the state is changed to a “confirmed good” state. If the data was updated through a read-modified-write prior to being checked for a dropped write event, its state is changed to an “unquantifiable” state.

    摘要翻译： 提供了方法，系统和计算机程序产品，用于检测和纠正存储系统中丢弃的写入。 将数据和校验和写入存储设备，如RAID阵列。 数据的状态被分类为“新数据，未确认”状态。 周期性地检查写入数据的状态，例如使用定时器。 如果数据处于“新数据，未确认”状态，则检查是否丢弃写入。 如果发生了丢弃的写入，则将数据的状态改变为“单个丢弃的写入确认”状态，并且优选地校正丢弃的写入错误。 如果没有检测到丢弃的写入，则状态被改变为“已确认的”状态。 如果在检查丢失的写入事件之前通过读取 - 修改 - 写入更新数据，则其状态将更改为“无法量化”状态。

    Methods for process key rollover/re-encryption and systems thereof
    7.
    发明授权
    Methods for process key rollover/re-encryption and systems thereof 有权
    过程密钥翻转/重新加密的方法及其系统

    公开(公告)号：US08732485B2

    公开(公告)日：2014-05-20

    申请号：US12958249

    申请日：2010-12-01

    申请人： David R. Kahler ,  Roderick G. C. Moore ,  Karl A. Nielsen

    发明人： David R. Kahler ,  Roderick G. C. Moore ,  Karl A. Nielsen

    IPC分类号： H04L9/16 ,  G06F12/14 ,  H04L9/06 ,  G06F13/00

    CPC分类号： G06F11/1076 ,  G06F2211/1028

    摘要： A method according to one embodiment includes defining a new encryption band with a length that is consistent with a redundant array of inexpensive disks (RAID) parity strip; freeing a working extent in a working stride on the RAID. In an iterative process until each stride in a source band is depleted of data: marking a source extent in a source stride from which to gather data to be re-encrypted; marking parity inconsistent in the working stride in the new encryption band; performing a second iterative process; and freeing the working extent. The second iterative process is performed until each extent in a source stride is depleted of data. Additional systems, methods and computer program products are also presented.

    摘要翻译： 根据一个实施例的方法包括定义具有与廉价磁盘（RAID）奇偶校验条的冗余阵列一致的长度的新加密频带; 释放在RAID上的工作步伐的工作范围。 在一个迭代过程中，直到源频带中的每个步长都耗尽了数据：标记来源步长中的源范围，从中收集要重新加密的数据; 在新的加密频段中，标记奇偶校验不一致; 执行第二迭代过程; 并释放工作范围。 执行第二迭代过程，直到源步长中的每个区段耗尽数据。 还介绍了其他系统，方法和计算机程序产品。

    METHODS FOR PROCESS KEY ROLLOVER/RE-ENCRYPTION AND SYSTEMS THEREOF
    8.
    发明申请
    METHODS FOR PROCESS KEY ROLLOVER/RE-ENCRYPTION AND SYSTEMS THEREOF 有权
    用于处理关键滚动/重新加密的方法及其系统

    公开(公告)号：US20120144209A1

    公开(公告)日：2012-06-07

    申请号：US12958249

    申请日：2010-12-01

    申请人： David R. Kahler ,  Roderick G.C. Moore ,  Karl A. Nielsen

    发明人： David R. Kahler ,  Roderick G.C. Moore ,  Karl A. Nielsen

    IPC分类号： G06F12/14

    CPC分类号： G06F11/1076 ,  G06F2211/1028

    摘要： A method according to one embodiment includes defining a new encryption band with a length that is consistent with a redundant array of inexpensive disks (RAID) parity strip; freeing a working extent in a working stride on the RAID. In an iterative process until each stride in a source band is depleted of data: marking a source extent in a source stride from which to gather data to be re-encrypted; marking parity inconsistent in the working stride in the new encryption band; performing a second iterative process; and freeing the working extent. The second iterative process is performed until each extent in a source stride is depleted of data. Additional systems, methods and computer program products are also presented.

    摘要翻译： 根据一个实施例的方法包括定义具有与廉价磁盘（RAID）奇偶校验条的冗余阵列一致的长度的新加密频带; 释放在RAID上的工作步伐的工作范围。 在一个迭代过程中，直到源频带中的每个步长都耗尽了数据：标记来源步长中的源范围，从中收集要重新加密的数据; 在新的加密频段中，标记奇偶校验不一致; 执行第二迭代过程; 并释放工作范围。 执行第二迭代过程，直到源步长中的每个区段耗尽数据。 还介绍了其他系统，方法和计算机程序产品。