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1. 发明申请

US20060123321A1 System and method for reconstructing lost data in a storage system 审中-公开
标题翻译：用于重建存储系统中的丢失数据的系统和方法
公开(公告)号：US20060123321A1
公开(公告)日：2006-06-08
申请号：US10993510
申请日：2004-11-22
申请人： Veera Deenadhayalan , James Hafner , Krishnakumar Surugucchi
发明人： Veera Deenadhayalan , James Hafner , Krishnakumar Surugucchi
IPC分类号： G11C29/00
CPC分类号： G06F11/1088 , G06F2211/1057
摘要： A system (and method) for determining reconstruction formulas for partial strip reconstruction in a storage system in which a plurality of lost strips have been detected, includes using a combination of a direct reconstruction method and a sequential reconstruction method.
摘要翻译：一种用于确定已经检测到多个丢失的条带的存储系统中的部分条带重建的重建公式的系统（和方法）包括使用直接重建方法和顺序重建方法的组合。

2. 发明申请

US20070226533A1 System and method for servicing storage devices in a bladed storage subsystem 失效
标题翻译：用于维护刀片存储子系统中的存储设备的系统和方法
公开(公告)号：US20070226533A1
公开(公告)日：2007-09-27
申请号：US11350247
申请日：2006-02-08
申请人： James Hafner , Krishnakumar Surugucchi
发明人： James Hafner , Krishnakumar Surugucchi
IPC分类号： G06F11/00
CPC分类号： G06F11/1088
摘要： A bladed storage servicing system comprising a RAID layout facilitates the removal of one or more functional storage devices in a tray of the bladed storage subsystem in order to service a failed storage device. Upon removal of the tray from the bladed storage subsystem, the system designates the functional storage devices on the tray as temporarily removed. The system logs writes to the removed functional storage devices so that the functional storage devices can be returned to consistency when replaced in the bladed storage subsystem. The system manages reads to the removed functional storage devices through reconstruction from active storage devices in the bladed storage subsystem. Upon reinsertion of the tray in the bladed storage subsystem, the system verifies the identities of the functional storage devices and resynchronizes the functional storage devices to ensure data consistency.
摘要翻译：包括RAID布局的刀片存储服务系统有助于移除刀片存储子系统的托盘中的一个或多个功能存储设备，以便为故障存储设备提供服务。从刀片存储子系统中取出托盘后，系统会将托盘上的功能存储设备指定为临时移除。系统将对删除的功能存储设备进行写入操作，以便在刀片式存储子系统中更换功能存储设备时可以恢复一致性。该系统通过从叶片存储子系统中的主动存储设备的重构来管理对移除的功能存储设备的读取。重新插入刀片存储子系统中的托盘后，系统会验证功能存储设备的身份，并重新同步功能存储设备，以确保数据的一致性。

3. 发明申请

US20060129873A1 System and method for tolerating multiple storage device failures in a storage system using horizontal and vertical parity layouts 失效
标题翻译：使用水平和垂直奇偶校验布局容忍存储系统中多个存储设备故障的系统和方法
公开(公告)号：US20060129873A1
公开(公告)日：2006-06-15
申请号：US10997037
申请日：2004-11-24
申请人： James Hafner
发明人： James Hafner
IPC分类号： G06F11/00
CPC分类号： G06F11/1076
摘要： A fault-tolerant system for storage arrays that stored parity values both on separate disks from the data elements (horizontally aligned) and on the same disks as the data elements (vertically aligned), a so-called horizontal-vertical code or HoVer code. The fault-tolerant system has embodiments that are supported on a variety of array sizes and has significant flexibility in parameter selection. Certain embodiments can tolerate all combinations of T failed disks and, among those, some embodiments can tolerate many instances of more than T failures. The fault-tolerant system has efficient XOR-based encoding, recovery, and updating algorithms and has simple redundancy formulas.
摘要翻译：用于存储阵列的容错系统，其将数据元素（水平对齐）和与数据元素（垂直对齐）相同的磁盘上的奇偶校验值存储在一起，即所谓的水平垂直代码或HoVer代码。容错系统具有支持各种阵列大小的实施例，并且在参数选择中具有显着的灵活性。某些实施例可以容忍T故障盘的所有组合，并且其中一些实施例可以容忍多于T个故障的许多实例。容错系统具有高效的基于XOR的编码，恢复和更新算法，并具有简单的冗余公式。

4. 发明授权

US07873878B2 Data integrity validation in storage systems 失效
标题翻译：存储系统中的数据完整性验证
公开(公告)号：US07873878B2
公开(公告)日：2011-01-18
申请号：US11860461
申请日：2007-09-24
申请人： Wendy Belluomini , John Edward Bish , Kenneth Day, III , James Hafner , Bret S. Weber
发明人： Wendy Belluomini , John Edward Bish , Kenneth Day, III , James Hafner , Bret S. Weber
IPC分类号： G06F11/00
CPC分类号： G06F11/1076 , G06F2211/104 , G06F2211/109
摘要： A data storage method comprises storing first data in at least a first data chunk, wherein the first data chunk is a logical representation of one or more sectors on at least a first disk drive in a storage system; storing first metadata, associated with the first data, in at least a first appendix, wherein the first appendix is a logical representation of a sector region on at least the first disk drive in the storage system, and wherein the first metadata comprises first atomicity metadata (AMD) and first validity metadata (VMD) associated with the first data; and storing a copy of the first VMD for the first data in at least one low latency non-volatile storage (LLNVS) device.
摘要翻译：数据存储方法包括在至少第一数据块中存储第一数据，其中第一数据块是存储系统中的至少第一磁盘驱动器上的一个或多个扇区的逻辑表示; 在至少第一附录中存储与第一数据相关联的第一元数据，其中第一附录是存储系统中的至少第一磁盘驱动器上的扇区区域的逻辑表示，并且其中第一元数据包括第一原子元数据（AMD）和与第一数据相关联的第一有效性元数据（VMD）; 以及将第一数据的第一VMD的副本存储在至少一个低延迟非易失性存储（LLNVS）设备中。

5. 发明申请

US20060107091A1 System and method for recovery of data for a lost sector in a storage system 有权
标题翻译：用于恢复存储系统中的丢失扇区的数据的系统和方法
公开(公告)号：US20060107091A1
公开(公告)日：2006-05-18
申请号：US10978389
申请日：2004-11-02
申请人： James Hafner , John Tomlin
发明人： James Hafner , John Tomlin
IPC分类号： G06F11/00
CPC分类号： G06F11/1076
摘要： A system (and method) for a recovery of data from a lost sector in a storage system, which includes a set of readable and lost sectors in a plurality of disks in the storage system, includes identifying a lost sector of at least one disk of the storage system, determining whether the data from the lost sector is capable of being recovered, and, if the data from the lost sector is capable of being recovered, generating a recovery formula for the lost sector and recovering the data from the lost sector based on the recovery formula.
摘要翻译：一种用于从存储系统中的丢失扇区恢复数据的系统（和方法），其包括存储系统中的多个盘中的一组可读和丢失的扇区，包括识别至少一个盘的丢失扇区存储系统，确定来自丢失扇区的数据是否能够被恢复，并且如果来自丢失扇区的数据能够被恢复，则为丢失的扇区生成恢复公式并从丢失的扇区恢复数据关于恢复公式。

6. 发明申请

US20090083504A1 Data Integrity Validation in Storage Systems 失效
标题翻译：存储系统中的数据完整性验证
公开(公告)号：US20090083504A1
公开(公告)日：2009-03-26
申请号：US11860461
申请日：2007-09-24
申请人： Wendy Belluomini , John Edward Bish , Kenneth Day, III , James Hafner , Bret S. Weber
发明人： Wendy Belluomini , John Edward Bish , Kenneth Day, III , James Hafner , Bret S. Weber
IPC分类号： H03M13/09 , G06F12/16
CPC分类号： G06F11/1076 , G06F2211/104 , G06F2211/109
摘要： A data storage method comprises storing first data in at least a first data chunk, wherein the first data chunk is a logical representation of one or more sectors on at least a first disk drive in a storage system; storing first metadata, associated with the first data, in at least a first appendix, wherein the first appendix is a logical representation of a sector region on at least the first disk drive in the storage system, and wherein the first metadata comprises first atomicity metadata (AMD) and first validity metadata (VMD) associated with the first data; and storing a copy of the first VMD for the first data in at least one low latency non-volatile storage (LLNVS) device.
摘要翻译：数据存储方法包括在至少第一数据块中存储第一数据，其中第一数据块是存储系统中的至少第一磁盘驱动器上的一个或多个扇区的逻辑表示; 在至少第一附录中存储与第一数据相关联的第一元数据，其中第一附录是存储系统中的至少第一磁盘驱动器上的扇区区域的逻辑表示，并且其中第一元数据包括第一原子元数据（AMD）和与第一数据相关联的第一有效性元数据（VMD）; 以及将第一数据的第一VMD的副本存储在至少一个低延迟非易失性存储（LLNVS）设备中。

7. 发明申请

US20060075290A1 System and method for improving the performance of operations requiring parity reads in a storage array system 有权
公开(公告)号：US20060075290A1
公开(公告)日：2006-04-06
申请号：US10949126
申请日：2004-09-24
申请人： Jeffrey Hartline , James Hafner , Tapas Kanungo
发明人： Jeffrey Hartline , James Hafner , Tapas Kanungo
IPC分类号： G06F11/00
CPC分类号： G06F11/1076 , G06F2211/1054
摘要： A system for improving a performance of a write process in an exemplary RAID system reduces a number of IOs required for a short write in a RAID algorithm by using a replicated-parity drive. Parity is stored on the parity portion of the disk drives. A replicated-parity drive comprises all the parity information. Parity information for each parity drive is co-located or mirrored on the replicated-parity portion of the disk drives for fast access during a read portion of the read-modify-write process. Consequently, the system accesses parity data with one seek, as opposed to P seeks in a conventional disk array system utilizing P parity drives.

8. 发明申请

US20060074995A1 System and method for tolerating multiple storage device failures in a storage system with constrained parity in-degree 失效
公开(公告)号：US20060074995A1
公开(公告)日：2006-04-06
申请号：US10956466
申请日：2004-09-30
申请人： James Hafner , Jeffrey Hartline , Tapas Kanungo
发明人： James Hafner , Jeffrey Hartline , Tapas Kanungo
IPC分类号： G06F17/30
CPC分类号： G06F11/1076 , Y10S707/99953
摘要： A fault-tolerant system for storage arrays has constraints on the number of data from which each redundancy value is computed. The fault-tolerant system has embodiments that are supported on small array sizes to arbitrarily large array sizes, and can tolerate a large number T of failures. Certain embodiments can tolerate many instances of more than T failures. The fault-tolerant system has efficient XOR-based encoding, recovery, and updating algorithms and has simple redundancy formulas. The fault-tolerant system has improved IO seek costs for certain multiple-element sequential host updates.

9. 发明申请

US20060074954A1 System and method for enabling efficient recovery of data in a storage array 失效
标题翻译：用于有效恢复存储阵列中的数据的系统和方法
公开(公告)号：US20060074954A1
公开(公告)日：2006-04-06
申请号：US10956468
申请日：2004-09-30
申请人： Jeffrey Hartline , Tapas Kanungo , James Hafner
发明人： Jeffrey Hartline , Tapas Kanungo , James Hafner
IPC分类号： G06F17/30
CPC分类号： G06F11/1076 , G06F2211/1059 , Y10S707/99953
摘要： A recovery enabling system for storage arrays is a high distance generalization of RAID-5 with optimal update complexity and near optimal storage efficiency. The recovery enabling system utilizes presets, data cells with known values that initialize the reconstruction process. The presets allow resolution of parity equations to reconstruct data when failures occur. In one embodiment, additional copies of the layout of the recovery enabling system are packed onto the same disks to minimize the effect of presets on storage efficiency without destroying the clean geometric construction of the recovery enabling system. The recovery enabling system has efficient XOR-based encoding, recovery, and updating algorithms for arbitrarily large distances, making the recovery enabling system an ideal candidate when storage-efficient reliable codes are required.
摘要翻译：存储阵列的恢复启用系统是RAID-5的高距离泛化，具有最佳的更新复杂性和接近最佳的存储效率。恢复启用系统利用预设，具有初始化重建过程的已知值的数据单元。当故障发生时，预设允许解决奇偶校验方程来重建数据。在一个实施例中，恢复启用系统的布局的附加副本被打包在相同的盘上，以最小化预设对存储效率的影响，而不破坏恢复使能系统的干净的几何结构。恢复使能系统具有高效的基于XOR的编码，恢复和更新算法，用于任意大距离，使得恢复使能系统成为需要存储高效可靠代码的理想候选。

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