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71. 发明授权

US08560879B1 Data recovery for failed memory device of memory device array 有权
公开(公告)号：US08560879B1
公开(公告)日：2013-10-15
申请号：US12428061
申请日：2009-04-22
申请人： Atul Goel
发明人： Atul Goel
IPC分类号： G06F11/00
CPC分类号： G06F11/0709 , G06F11/1088 , G06F11/1662 , G06F11/2094 , G11C7/1006
摘要： Some aspects of the disclosure relate to a data storage system that includes multiple memory device storage devices. If a memory device of a memory device array fails within a first data storage device, some portions of the lost or corrupted data from the failed memory device are recovered by reading them from a second data storage device. Other portions of the lost or corrupted data from the failed memory device are recovered from parity information in the first data storage device.

72. 发明授权

US08452038B2 Multi-throat acoustic horn for acoustic filtering 有权
标题翻译：用于声学滤波的多声道喇叭
公开(公告)号：US08452038B2
公开(公告)日：2013-05-28
申请号：US12769741
申请日：2010-04-29
申请人： Osvaldo Buccafusca , Atul Goel , Bruce Beaudry
发明人： Osvaldo Buccafusca , Atul Goel , Bruce Beaudry
IPC分类号： H04R1/22 , H04R1/30 , G10K11/04 , H04R1/20 , G10K11/02
CPC分类号： H04R1/26 , G10K11/025 , H04R1/30 , H04R1/403
摘要： A horn coupled to multiple acoustic transducers includes first and second throat portions and a mixing area integrally formed with the first and second throat portions. The first throat portion has a first throat opening adjacent to a first transducer, and the second throat portion has a second throat opening adjacent to a second transducer. The mixing area includes a common mouth opening shared by the first and second throat portions for at least one of transmitting or receiving acoustic signals. At least one dimension of the first throat portion is different from a corresponding dimension of the second throat portion, so that a first cutoff frequency corresponding to the first throat portion is different from a second cutoff frequency corresponding to the second throat portion.
摘要翻译：耦合到多个声换能器的喇叭包括第一和第二喉部以及与第一和第二喉部一体形成的混合区域。第一喉部具有与第一换能器相邻的第一喉部开口，并且第二喉部具有与第二换能器相邻的第二喉部开口。混合区域包括由第一和第二喉部分共用的用于发送或接收声信号中的至少一个的公共嘴部开口。第一喉部的至少一个尺寸不同于第二喉部的对应尺寸，使得对应于第一喉部的第一截止频率与对应于第二喉部的第二截止频率不同。

73. 发明授权

US08386834B1 Raid storage configuration for cached data storage 有权
标题翻译： Raid存储配置用于缓存数据存储
公开(公告)号：US08386834B1
公开(公告)日：2013-02-26
申请号：US12772006
申请日：2010-04-30
申请人： Atul Goel , Stephen H. Strange
发明人： Atul Goel , Stephen H. Strange
IPC分类号： G06F11/00
CPC分类号： G06F11/108 , G06F11/0727 , G06F11/076
摘要： A storage server receives a notification indicating a failure of a mass storage device in a storage array. The storage server determines whether a number of failures exceeds a fault tolerance level of the array and if the number of failures exceeds the fault tolerance level, recovers an address space corresponding to the failed storage device. When recovering the address space, the storage server replaces the failed storage device with a spare storage device having an identifiable pattern stored thereon and determines whether a file system on the storage system can automatically invalidate cached data blocks on the failed storage device.
摘要翻译：存储服务器接收指示存储阵列中的大容量存储设备的故障的通知。存储服务器确定多个故障是否超过阵列的容错等级，如果故障次数超过容错等级，则恢复与故障存储设备相对应的地址空间。当恢复地址空间时，存储服务器用存储有可识别模式的备用存储设备替换出现故障的存储设备，并确定存储系统上的文件系统是否可以自动使失败的存储设备上的缓存的数据块无效。

74. 发明授权

US08209587B1 System and method for eliminating zeroing of disk drives in RAID arrays 有权
标题翻译：用于消除RAID阵列中磁盘驱动器归零的系统和方法
公开(公告)号：US08209587B1
公开(公告)日：2012-06-26
申请号：US11734314
申请日：2007-04-12
申请人： James Taylor , Atul Goel , James Leong
发明人： James Taylor , Atul Goel , James Leong
IPC分类号： G11C29/00
CPC分类号： G06F11/1096 , G06F11/1088
摘要： Embodiments of the present invention disclose a technique for providing an indication whether data stored on a disk drive are invalid. As used herein, invalid data are data written prior to the disk drive being added to an array of the disk drives or data in a block that has become free and which has been removed from the corresponding parity block of the stripe. Knowing that the disk drive was written prior to the drive being added to the existing array or having data which has become invalid allows a storage server to ignore the invalid data and not to use it when computing parity (i.e., a data protection value computed as a result of a logical operation on data blocks in a stripe in the array of disk drives). This, in turn, eliminates the need to zero disk drives or to perform parity re-computation prior to using the disk drives.
摘要翻译：本发明的实施例公开了一种用于提供存储在磁盘驱动器上的数据是否无效的指示的技术。如本文所使用的，无效数据是在将磁盘驱动器添加到磁盘驱动器的阵列之前写入的数据或在已经变为空闲并且已经从条带的对应奇偶校验块中移除的块中的数据之后写入的数据。知道在将驱动器添加到现有阵列之前写入磁盘驱动器，或者数据变为无效时，存储服务器可以忽略无效数据，而不是在计算奇偶校验时使用该磁盘驱动器（即将数据保护值计算为对磁盘驱动器阵列中的条带中的数据块进行逻辑操作的结果）。这又反过来消除了在使用磁盘驱动器之前需要清零磁盘驱动器或执行奇偶校验重新计算。

75. 发明授权

US07640484B2 Triple parity technique for enabling efficient recovery from triple failures in a storage array 有权
标题翻译：三重奇偶校验技术，用于实现存储阵列中三重故障的高效恢复
公开(公告)号：US07640484B2
公开(公告)日：2009-12-29
申请号：US11304369
申请日：2005-12-15
申请人： Peter F. Corbett , Atul Goel
发明人： Peter F. Corbett , Atul Goel
IPC分类号： G11C29/00
CPC分类号： G06F11/1076 , G06F2211/1061
摘要： A triple parity (TP) technique reduces overhead of computing diagonal and anti-diagonal parity for a storage array adapted to enable efficient recovery from the concurrent failure of three storage devices in the array. The diagonal parity is computed along diagonal parity sets that collectively span all data disks and a row parity disk of the array. The parity for all of the diagonal parity sets except one is stored on the diagonal parity disk. Similarly, the anti-diagonal parity is computed along anti-diagonal parity sets that collectively span all data disks and a row parity disk of the array. The parity for all of the anti-diagonal parity sets except one is stored on the anti-diagonal parity disk. The TP technique provides a uniform stripe depth and an optimal amount of parity information.
摘要翻译：三重奇偶校验（TP）技术减少了针对存储阵列计算对角线和反对角奇偶校验的开销，适用于实现从阵列中的三个存储设备的并发故障的有效恢复。沿对角线奇偶校验集计算对角线奇偶校验集，该集合跨越阵列的所有数据磁盘和行奇偶校验磁盘。所有对角奇偶校验集的奇偶校验除了一个存储在对角奇偶校验磁盘上。类似地，反对角奇偶校验是沿着反对角奇偶校验集计算的，它们共同跨越阵列的所有数据盘和行奇偶校验盘。所有反对角奇偶校验集的奇偶校验除了一个存储在反对角奇偶校验磁盘上。 TP技术提供均匀条纹深度和最优量的奇偶校验信息。

76. 发明授权

US07613984B2 System and method for symmetric triple parity for failing storage devices 有权
标题翻译：用于故障存储设备的对称三重奇偶校验系统和方法
公开(公告)号：US07613984B2
公开(公告)日：2009-11-03
申请号：US11648709
申请日：2006-12-29
申请人： Atul Goel
发明人： Atul Goel
IPC分类号： G11C29/00
CPC分类号： G06F11/1076
摘要： A symmetric triple parity (TP) technique in an array comprising a number p of storage devices, such as disks, with p being a prime number is provided. The p disks are organized as one row parity disk, two symmetric parity disks and p-3 data disks. Phantom diagonal and anti-diagonal parity disks assumed to be present are further assumed to contain a predetermined value, thereby enabling parity encoding/decoding utilizing the phantom (anti-) diagonal disks. Row parity and symmetric parity values are included within the computation of the diagonal and anti-diagonal parities; accordingly, the two symmetric parity and the row parity values may be computed using the same technique as used for a triple parity erasure, i.e., in a symmetric fashion.
摘要翻译：提供了一种阵列中的对称三重奇偶校验（TP）技术，其包括p个存储设备，例如盘，其中p是素数。 p磁盘组织为一行奇偶校验磁盘，两个对称奇偶校验磁盘和p-3数据磁盘。假定存在的幻影对角线和反对角奇偶校验盘进一步假设为包含预定值，从而使得能够利用幻像（反对角）盘进行奇偶校验编码/解码。行奇偶校验和对称奇偶校验值包括在对角线和反对角奇偶校验的计算中; 因此，可以使用与用于三重奇偶校验擦除相同的技术来计算两个对称奇偶校验和行奇偶校验值，即以对称方式计算。

77. 发明授权

US07587630B1 Method and system for rapidly recovering data from a “dead” disk in a RAID disk group 有权
标题翻译：用于从RAID磁盘组中的“死”磁盘快速恢复数据的方法和系统
公开(公告)号：US07587630B1
公开(公告)日：2009-09-08
申请号：US11118674
申请日：2005-04-29
申请人： Loellyn Cassell , Atul Goel , James Leong , Rajesh Sundaram
发明人： Loellyn Cassell , Atul Goel , James Leong , Rajesh Sundaram
IPC分类号： G06F11/00
CPC分类号： G06F11/1088
摘要： A method and system for rapidly recovering data from a failed disk in a RAID disk group are disclosed. According to one aspect of the present invention, a RAID-based storage system identifies a particular disk in a RAID disk group as a “dead” disk (e.g., incapable of servicing client-initiated requests in a timely manner). Accordingly, a spare disk is allocated to replace the “dead” disk and client-initiated read/write requests are directed to the spare disk for servicing. In addition, a disk-to-disk copy operation is initiated. Without overwriting valid data on the target disk with stale data from the “dead” disk, the disk-to-disk copy operation copies data from the “dead” disk to the target by directly reading data from the “dead” disk while reconstructing only the data that cannot be read directly from the “dead” disk.
摘要翻译：公开了一种用于从RAID磁盘组中的故障磁盘快速恢复数据的方法和系统。根据本发明的一个方面，基于RAID的存储系统将RAID磁盘组中的特定磁盘识别为“死”磁盘（例如，不能及时地为客户端发起的请求提供服务）。因此，分配备用磁盘来替换“死”磁盘，并且客户端发起的读/写请求被引导到备用磁盘进行维修。此外，启动磁盘到磁盘复制操作。没有使用来自“死”磁盘的陈旧数据覆盖目标磁盘上的有效数据，磁盘到磁盘复制操作通过直接从“死”磁盘读取数据而将数据从“死”磁盘复制到目标磁盘，而仅重新构建无法从“死”磁盘读取的数据。

78. 发明申请

US20080202239A1 Piezoelectric acceleration sensor 审中-公开
标题翻译：压电式加速度传感器
公开(公告)号：US20080202239A1
公开(公告)日：2008-08-28
申请号：US11712575
申请日：2007-02-28
申请人： R. Shane Fazzio , Kristina L. Lamers , Atul Goel
发明人： R. Shane Fazzio , Kristina L. Lamers , Atul Goel
IPC分类号： G01P15/09 , G01P15/14
CPC分类号： G01P15/0915 , G01C19/56 , G01P15/125 , G01P15/18
摘要： Piezoelectric accelerometers and gyroscopes having cantilevered transducers are described.
摘要翻译：描述了具有悬臂换能器的压电加速度计和陀螺仪。

79. 发明授权

US07389396B1 Bounding I/O service time 有权
标题翻译：限制I / O服务时间
公开(公告)号：US07389396B1
公开(公告)日：2008-06-17
申请号：US11114648
申请日：2005-04-25
申请人： Atul Goel , Todd Mills , Rajesh Sundaram , Douglas Coatney
发明人： Atul Goel , Todd Mills , Rajesh Sundaram , Douglas Coatney
IPC分类号： G06F12/00
CPC分类号： G06F11/2094 , G06F11/0727 , G06F11/0793
摘要： A storage system with an array of redundant storage devices places bounds on access request servicing. If a storage device is unable to service the access request within the bounds, the storage system temporarily, individually offlines the specific storage device. Access requests pending for the storage device may be serviced by other storage devices of the redundant array while the storage device is offline. The offline storage device can perform error recovery and be brought back online by the system when error recovery has completed.
摘要翻译：具有冗余存储设备阵列的存储系统对访问请求服务设置了界限。如果存储设备无法在边界范围内服务访问请求，则临时存储系统会分离出特定的存储设备。当存储设备脱机时，存储设备的待处理访问请求可能由冗余阵列的其他存储设备提供服务。离线存储设备可以执行错误恢复，并在错误恢复完成后由系统恢复联机。

80. 发明授权

US07389379B1 Selective disk offlining 有权
标题翻译：选择性磁盘紧邻
公开(公告)号：US07389379B1
公开(公告)日：2008-06-17
申请号：US11114647
申请日：2005-04-25
申请人： Atul Goel , James Leong , Loellyn Cassell
发明人： Atul Goel , James Leong , Loellyn Cassell
IPC分类号： G06F12/00
CPC分类号： G06F11/1662 , G06F11/2094
摘要： A storage system with redundant mass storage device arrays determines that a mass storage device is non-responsive, and individually offlines the specific mass storage device for a temporary period. Reads to the offline mass storage device may be temporarily prevented from reaching the mass storage device, and may be serviced by a redundant array. Write to the offline mass storage device may also be temporarily prevented from reaching the mass storage device, and may be serviced with a temporary storage management that tracks and/or stores write transactions. The mass storage device can be synchronized with the write transactions on the basis of the tracking.
摘要翻译：具有冗余大容量存储设备阵列的存储系统确定大容量存储设备是不响应的，并且在临时期间单独地离开特定的大容量存储设备。对离线海量存储设备的读取可能被暂时阻止到达大容量存储设备，并且可以被冗余阵列服务。写入离线大容量存储设备的写入也可能被暂时阻止到达大容量存储设备，并且可以用跟踪和/或存储写入事务的临时存储管理进行服务。大容量存储设备可以基于跟踪与写入事务同步。

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