公开(公告)号：EP0927395B1

公开(公告)日：2003-05-14

申请号：EP98908761.4

申请日：1998-02-27

申请人： Network Appliance, Inc.

发明人： KLEIMAN, Steven, R.

IPC分类号： G06F11/10 ,  G11B20/18

CPC分类号： G06F11/1076 ,  G06F2211/1054

摘要： The invention provides a method and system for performing XOR operations without consuming substantial computing resources. A specialised processor is coupled to the same bus as a set of disk drives; the specialized processor reviews data transfers to and from the disk drives and performs XOR operations on data transferred to and from the disk drives without requiring separate transfers. The specialised processor maintains an XOR accumulator which is used for XOR operations, which records the result of XOR operations, and which is read out upon command of the processor. The XOR accumulator includes one set of accumulator registers for each RAID stripe, for a selected set of RAID stripes. A memory (such as a contents-addressable memory) associates one set of accumulator registers with each selected RAID stripe.

公开(公告)号：EP0874313A3

公开(公告)日：2001-09-05

申请号：EP98250107.4

申请日：1993-08-25

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： Matsumoto, Toshio, c/o Mitsubishi Denki K.K. ,  Baba, Hiroshi, c/o Mitsubishi Denki K.K. ,  Itoh, Kazuhiko, c/o Mitsubishi Denki K.K. ,  Ogura, Shiro, c/o Mitsubishi Denki K.K.

IPC分类号： G06F11/10 ,  G11B20/18 ,  G06F3/06

CPC分类号： G11B20/1816 ,  G06F3/0601 ,  G06F3/0613 ,  G06F3/065 ,  G06F3/0689 ,  G06F11/108 ,  G06F11/1461 ,  G06F11/2056 ,  G06F11/3034 ,  G06F11/3055 ,  G06F2003/0697 ,  G06F2211/1019 ,  G06F2211/1033 ,  G06F2211/1054 ,  G11B20/1252 ,  G11B20/1803 ,  G11B20/1833 ,  G11B20/1883 ,  G11B27/002 ,  G11B27/11 ,  G11B27/329 ,  G11B2220/20 ,  G11B2220/415 ,  G11B2220/65

摘要： A method of storing new data in a redundant array of disks is proposed in which said new data are received from a host computer and are stored in a semiconductor memory. An area on at least one disk in said redundant array in which to store said new data is selected and said new data are written on the area thus selected. Said host computer is notified that the storing of said new data is completed as soon as the step of writing the new data ends. Data are read from another area on at least one other disk in said redundant array, computing check information from the new data stored in said semiconductor memory and the data thus read, whereby said check information are written on a disk in said redundant array.

公开(公告)号：EP0869436A3

公开(公告)日：2000-09-13

申请号：EP98250109.0

申请日：1993-08-25

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： Matsumoto, Toshio, c/o Mitsubishi Denki K.K. ,  Baba, Hiroshi, c/o Mitsubishi Denki K.K. ,  Itoh, Kazuhiko, c/o Mitsubishi Denki K.K. ,  Ogura, Shiro, c/o Mitsubishi Denki K.K.

IPC分类号： G06F11/10 ,  G11B20/18 ,  G06F3/06

CPC分类号： G11B20/1816 ,  G06F3/0601 ,  G06F3/0613 ,  G06F3/065 ,  G06F3/0689 ,  G06F11/108 ,  G06F11/1461 ,  G06F11/2056 ,  G06F11/3034 ,  G06F11/3055 ,  G06F2003/0697 ,  G06F2211/1019 ,  G06F2211/1033 ,  G06F2211/1054 ,  G11B20/1252 ,  G11B20/1803 ,  G11B20/1833 ,  G11B20/1883 ,  G11B27/002 ,  G11B27/11 ,  G11B27/329 ,  G11B2220/20 ,  G11B2220/415 ,  G11B2220/65

摘要： In a redundant array of disks comprising a plurality of rotating disks and at least one solid-state disk data are stored on said rotating disks and check informations of said data are stored on said solid-state disk.

摘要翻译： 在冗余的磁盘阵列中，磁盘被划分成不同大小的区域，因此可以将少量数据存储在单个磁盘上适当大小的区域中，而不是分布在多个磁盘上。 使用状态表指示正在使用的区域。 检查信息仅生成并存储在指示使用的区域。 当生成新的检查信息时，可以省略不必要的旧数据和旧的检查信息的读取。 当磁盘发生故障并被替换为备用磁盘时，仅重建指示正在使用的区域中的数据。 检查信息可以存储在固态磁盘上。

公开(公告)号：EP0584804B1

公开(公告)日：1998-11-04

申请号：EP93113563.6

申请日：1993-08-25

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： Matsumoto, Toshio, c/o Mitsubishi Denki K.K. ,  Baba, Hiroshi, c/o Mitsubishi Denki K.K. ,  Itoh, Kazuhiko, c/o Mitsubishi Denki K.K. ,  Ogura, Shiro, c/o Mitsubishi Denki K.K.

IPC分类号： G11B20/12 ,  G11B20/18 ,  G06F3/06

CPC分类号： G11B20/1816 ,  G06F3/0601 ,  G06F3/0613 ,  G06F3/065 ,  G06F3/0689 ,  G06F11/108 ,  G06F11/1461 ,  G06F11/2056 ,  G06F11/3034 ,  G06F11/3055 ,  G06F2003/0697 ,  G06F2211/1019 ,  G06F2211/1033 ,  G06F2211/1054 ,  G11B20/1252 ,  G11B20/1803 ,  G11B20/1833 ,  G11B20/1883 ,  G11B27/002 ,  G11B27/11 ,  G11B27/329 ,  G11B2220/20 ,  G11B2220/415 ,  G11B2220/65

摘要： In a redundant array of disks, the disks are divided into areas of different sizes, so that small amounts of data can be stored in an area of an appropriate size on a single disk, instead of being spread over multiple disks. A usage status table indicates which areas are in use. Check information is generated and stored only for areas indicated to be in use. When new check information is generated, it is therefore possible to omit the reading of unnecessary old data and old check information. When a disk fails and is replaced with a standby disk, only the data in areas indicated to be in use are reconstructed. Check information can be stored on a solid-state disk.

公开(公告)号：EP0874313A2

公开(公告)日：1998-10-28

申请号：EP98250107.4

申请日：1993-08-25

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： Matsumoto, Toshio, c/o Mitsubishi Denki K.K. ,  Baba, Hiroshi, c/o Mitsubishi Denki K.K. ,  Itoh, Kazuhiko, c/o Mitsubishi Denki K.K. ,  Ogura, Shiro, c/o Mitsubishi Denki K.K.

IPC分类号： G06F11/10 ,  G11B20/18 ,  G06F3/06

CPC分类号： G11B20/1816 ,  G06F3/0601 ,  G06F3/0613 ,  G06F3/065 ,  G06F3/0689 ,  G06F11/108 ,  G06F11/1461 ,  G06F11/2056 ,  G06F11/3034 ,  G06F11/3055 ,  G06F2003/0697 ,  G06F2211/1019 ,  G06F2211/1033 ,  G06F2211/1054 ,  G11B20/1252 ,  G11B20/1803 ,  G11B20/1833 ,  G11B20/1883 ,  G11B27/002 ,  G11B27/11 ,  G11B27/329 ,  G11B2220/20 ,  G11B2220/415 ,  G11B2220/65

摘要： A method of storing new data in a redundant array of disks is proposed in which said new data are received from a host computer and are stored in a semiconductor memory. An area on at least one disk in said redundant array in which to store said new data is selected and said new data are written on the area thus selected. Said host computer is notified that the storing of said new data is completed as soon as the step of writing the new data ends. Data are read from another area on at least one other disk in said redundant array, computing check information from the new data stored in said semiconductor memory and the data thus read, whereby said check information are written on a disk in said redundant array.

公开(公告)号：EP2096542A2

公开(公告)日：2009-09-02

申请号：EP08164691.1

申请日：2008-09-19

申请人： Symantec Corporation

发明人： Mathew, George ,  Harmer, Craig K. ,  Kiselev, Oleg ,  Karr, Ronald S.

IPC分类号： G06F11/10

CPC分类号： G06F11/1076 ,  G06F2211/1038 ,  G06F2211/1054

摘要： A system and method for data storage in an array. A system includes a client coupled to a storage subsystem. The storage subsystem comprises data storage locations addressable as rows and columns in an array. Each column comprises a separate storage device. Each row includes redundant data. For a given row, a coordinating storage device receives data from the client, coordinates computation and storage of redundant data, and forwards data to other storage devices. In response to receiving data targeted for storage in a given storage location, a non-volatile, temporary storage device that is associated with the separate storage device that includes the given storage location buffers the received data. The coordinating storage device conveys a write completion message to the client in response to detecting that the data has been buffered in the non-volatile, temporary storage devices. At least two storage devices are coordinating storage devices in separate rows.

摘要翻译： 在阵列中的系统和方法的数据存储,. 一种系统，包括耦合到存储子系统的客户端。 存储子系统包括数据存储位置进行寻址的行和列阵列中的,. 每个柱包括一个单独的存储设备。 每一行包括冗余数据。 对于给定的行中，协调存储设备从客户端接收数据，坐标计算和冗余数据的存储，和将数据转发到其他存储设备。 响应于接收到在给定的存储位置针对存储数据，非易失性，临时存储设备并与单独的存储设备相关联的那样包括在给定的存储位置缓冲接收的数据。 所述协调存储设备在响应传达写入完成消息至客户端，以检测没有数据已在非易失性的，临时存储设备被缓冲。 至少两个存储设备正在协调在单独的行的存储设备。

公开(公告)号：EP1934764A1

公开(公告)日：2008-06-25

申请号：EP06815558.9

申请日：2006-09-26

申请人： Intel Corporation

发明人： BRINK, Peter ,  BOYD, Richard ,  SKERRY, Brian

IPC分类号： G06F13/28 ,  G06F13/38

CPC分类号： G06F11/1076 ,  G06F13/28 ,  G06F13/385 ,  G06F2211/1054

摘要： [0088] Methods and apparatus for performing Direct Memory Access (DMA) transfers of sets of data and results of performing logical operations on the sets of data are disclosed. In one aspect, a method may include receiving a data structure that specifies DMA transfers of sets of data and a DMA transfer of a logical operation, such as an exclusive OR, on the sets of data. In response to receiving the data structure, the DMA transfers of the sets of data, and the DMA transfer of the logical operation performed on the sets of data may be performed.

公开(公告)号：EP0724217A3

公开(公告)日：2006-03-01

申请号：EP96300279.5

申请日：1996-01-15

申请人： International Business Machines Corporation

发明人： Munetoh, Seiji ,  Niijima, Hideto ,  Murata, Hiroki ,  Takahashi, Nobuaki

IPC分类号： G06F11/10 ,  G06F13/40

CPC分类号： G06F11/1076 ,  G06F2211/1054

摘要： A disk storage system comprises a plurality of drives HDD0 to HDD3 for storing data, a plurality of data buses DD0 and DD1 for transferring the data, and selection means 11a and 11b connected between the plurality of drives and the plurality of data buses for selectively connecting the drive and the data bus with a predetermined combination, the selection means having a function of parity operation such as exclusive OR. This provides a disk storage system and a parity generation method for the disk storage system which make generation of parity easier and which are capable of performing the reconstruction of data at the time of an occurrence of failure with high efficiency and high speed.

公开(公告)号：EP1486871A3

公开(公告)日：2005-01-05

申请号：EP04021632.7

申请日：1997-11-17

申请人： Hitachi, Ltd.

发明人： Katsurgai, Eiji ,  Ogata, Mikito ,  Kurano, Akira ,  Tamiya, Toshihiko ,  Yamamoto, Akira ,  Takahashi, Naoya

IPC分类号： G06F11/10

CPC分类号： G06F11/1076 ,  G06F2211/1054 ,  G06F2211/1066

摘要： The disk array device includes a disk control device (20) connected to a central processing unit (10) and a plurality of disk drives (300) composing disk arrays under the control of said disk control device (20). The disk control device (20) includes a redundant data generator (130), a difference data generator (140), and a redundant data generation method selecting function (37). The disk array device selects a proper redundant data generating method from a method of read and modify and a method of all stripes, both of which are executed to generate redundant data by the disk control device (20) according to an access pattern from a host, a load state of the disk drive (300), and a failure.

摘要翻译： 磁盘阵列装置包括在所述盘控制装置（20）的控制下连接到中央处理单元（10）的盘控制装置（20）和组成盘阵列的多个盘驱动器（300）。 盘控制装置（20）包括冗余数据生成器（130），差数据生成器（140）和冗余数据生成方法选择功能（37）。 磁盘阵列设备从读取和修改方法中选择适当的冗余数据生成方法以及所有条带的方法，两者都被执行以由磁盘控制设备（20）根据来自主机的访问模式生成冗余数据 ，磁盘驱动器（300）的负载状态，以及故障。

公开(公告)号：EP1486871A2

公开(公告)日：2004-12-15

申请号：EP04021632.7

申请日：1997-11-17

申请人： Hitachi, Ltd.

发明人： Katsurgai, Eiji ,  Ogata, Mikito ,  Kurano, Akira ,  Tamiya, Toshihiko ,  Yamamoto, Akira ,  Takahashi, Naoya

IPC分类号： G06F11/10

CPC分类号： G06F11/1076 ,  G06F2211/1054 ,  G06F2211/1066

摘要： The disk array device includes a disk control device (20) connected to a central processing unit (10) and a plurality of disk drives (300) composing disk arrays under the control of said disk control device (20). The disk control device (20) includes a redundant data generator (130), a difference data generator (140), and a redundant data generation method selecting function (37). The disk array device selects a proper redundant data generating method from a method of read and modify and a method of all stripes, both of which are executed to generate redundant data by the disk control device (20) according to an access pattern from a host, a load state of the disk drive (300), and a failure.