Storage system, storage control apparatus, and storage control method
    11.
    发明授权
    Storage system, storage control apparatus, and storage control method 有权
    存储系统,存储控制装置和存储控制方法

    公开(公告)号:US09003140B2

    公开(公告)日:2015-04-07

    申请号:US13585100

    申请日:2012-08-14

    CPC分类号: G06F11/2087 G06F11/1092

    摘要: A storage system including first storage devices constituting a first logical storage area, second storage devices constituting a second logical storage area; and a storage control apparatus. The storage control apparatus manages the first and second logical storage areas so that the data stored in the first and second logical storage areas have redundancy, and parity data for the data stored in the second logical storage area are stored in parity storage areas arranged in part of the second storage devices. When part of the first storage devices constituting part of the first logical storage area fail, the storage control apparatus generates part of the data stored, before the failure, in the part of the first storage devices, and stores the generated part of the data in at least part of the second parity storage areas in the second logical storage area.

    摘要翻译: 一种存储系统,包括构成第一逻辑存储区域的第一存储装置,构成第二逻辑存储区域的第二存储装置; 和存储控制装置。 存储控制装置管理第一和第二逻辑存储区域,使得存储在第一和第二逻辑存储区域中的数据具有冗余性,并且存储在第二逻辑存储区域中的数据的奇偶校验数据被存储在部分布置的奇偶校验存储区域中 的第二存储设备。 当构成第一逻辑存储区域的一部分的第一存储装置的一部分出现故障时,存储控制装置在第一存储装置的一部分中生成在故障之前存储的数据的一部分,并将生成的部分数据存储在 第二逻辑存储区域中的第二奇偶校验存储区域的至少一部分。

    STORAGE SYSTEM, STORAGE CONTROL DEVICE, AND STORAGE CONTROL METHOD
    12.
    发明申请
    STORAGE SYSTEM, STORAGE CONTROL DEVICE, AND STORAGE CONTROL METHOD 有权
    存储系统,存储控制设备和存储控制方法

    公开(公告)号:US20130047028A1

    公开(公告)日:2013-02-21

    申请号:US13570398

    申请日:2012-08-09

    IPC分类号: G06F11/20

    摘要: A control device manages a plurality of storage devices so that data to be recorded is redundantly recorded in different storage devices. An error monitoring unit monitors an occurrence of an error in each of the plurality of storage devices to register information indicative of error occurrence conditions in an error information storage unit for each storage device. When the use of one of the plurality of storage devices is stopped, a rebuild controller determines a timing to perform rebuild processing based on past error occurrence conditions in the storage devices other than the one storage device of the plurality of storage devices by referring to information registered in the error information storage unit.

    摘要翻译: 控制装置管理多个存储装置,使得要记录的数据被冗余地记录在不同的存储装置中。 错误监视单元监视多个存储设备中的每一个中的错误的发生,以在每个存储设备的错误信息存储单元中注册表示错误发生状况的信息。 当停止使用多个存储装置中的一个时,重建控制器通过参考信息,基于多个存储装置中的一个存储装置以外的存储装置中的过去的错误发生状况来确定执行重建处理的定时 登记在错误信息存储单元中。

    Storage apparatus, recording medium and method for controlling storage apparatus
    13.
    发明授权
    Storage apparatus, recording medium and method for controlling storage apparatus 失效
    存储装置,记录媒体及控制存储装置的方法

    公开(公告)号:US08504768B2

    公开(公告)日:2013-08-06

    申请号:US13073409

    申请日:2011-03-28

    IPC分类号: G06F12/00

    CPC分类号: G06F11/1096

    摘要: A storage apparatus has a plurality of storage media including each storage area in which a stripe is set extending over the storage area of the plurality of storage media. An access unit that writes a format data into the storage area, wherein when the plurality of storage media are formatted, the access unit writes an unformatted-state identifier indicating incompletion of formatting into at least a portion of storage area to be included in the stripe, or when the storage area to be included in the stripe is accessed for writing new data, the access unit reads out existing data stored in the storage area included in the stripe to be accessed. And when the unformatted-state identifier is detected from the existing data that has been read out, the access unit writes the new data or the format data to be written by formatting into the storage area.

    摘要翻译: 存储装置具有多个存储介质,其包括每个存储区域,在该存储区域中设置有条带,其延伸在多个存储介质的存储区域上。 一种将格式数据写入存储区域的存取单元,其中当格式化多个存储介质时,访问单元将表示格式化不完整的未格式化标识符写入要包括在条带中的存储区域的至少一部分中 或者当访问要包括在条带中的存储区域以写入新数据时,访问单元读出存储在要被访问的条带中的存储区域中的现有数据。 并且当从已经读出的现有数据检测到未格式化状态标识符时,访问单元将新数据或格式化的格式数据写入存储区域。

    Storage apparatus and controller
    14.
    发明授权
    Storage apparatus and controller 有权
    存储设备和控制器

    公开(公告)号:US08930748B2

    公开(公告)日:2015-01-06

    申请号:US13371503

    申请日:2012-02-13

    摘要: A storage apparatus includes a plurality of first storage mediums in which data is redundantly stored and a controller. The controller includes a formatting section which performs formatting in each of the plurality of first storage mediums, a detection section which detects a failure that has occurred in the plurality of first storage mediums, a control section which makes the formatting section stop the formatting at the time of the detection of the failure by the detection section and which rebuilds the data stored in the plurality of first storage mediums in which the failure has occurred in a second storage medium other than the plurality of first storage mediums, and a rebuild processing section which rebuilds the data stored in the plurality of first storage mediums in the second storage medium in accordance with instructions from the control section.

    摘要翻译: 存储装置包括冗余存储数据的多个第一存储介质和控制器。 控制器包括格式化部分,其在多个第一存储介质中的每一个中执行格式化;检测部分,其检测在多个第一存储介质中发生的故障;控制部分,其使格式化部分停止在 检测部分检测到故障的时间,以及重建存储在其中发生故障的多个第一存储介质中的数据在除了多个第一存储介质之外的第二存储介质中的数据;以及重建处理部分, 根据来自控制部分的指令重建存储在第二存储介质中的多个第一存储介质中的数据。

    DISK ARRAY APPARATUS, CONTROLLER AND CONTROLLING METHOD THEREFOR, AND RECORDING MEDIUM IN WHICH CONTROLLING PROGRAM IS STORED
    15.
    发明申请
    DISK ARRAY APPARATUS, CONTROLLER AND CONTROLLING METHOD THEREFOR, AND RECORDING MEDIUM IN WHICH CONTROLLING PROGRAM IS STORED 审中-公开
    磁盘阵列设备,控制器及其控制方法,以及记录控制程序存储的介质

    公开(公告)号:US20090327605A1

    公开(公告)日:2009-12-31

    申请号:US12406287

    申请日:2009-03-18

    IPC分类号: G06F12/00

    摘要: A disk array apparatus includes a first converting unit that performs first conversion on storing object data received in a first control unit from a controller to convert the storing object data into data in a second control unit, the controller including a selecting section that selects, on the basis of the access state monitored by a monitoring section, one from the controller and said first converting unit, and a second converting unit that performs, if the controller is selected by the selecting section, a second conversion, different from the first conversion, on the object data to convert the object data managed in the first control unit into the data in the second control unit. With this configuration, the disk array apparatus accomplishes the object to improve the accessibility to different types of storage units that manage data storing in different control units.

    摘要翻译: 一种磁盘阵列装置,包括:第一转换单元,其对来自控制器的第一控制单元中接收到的对象数据进行第一转换,将存储对象数据转换为第二控制单元中的数据,所述控制器包括:选择单元, 由监视部分监视的访问状态的基础,一个来自控制器和所述第一转换单元的第二转换单元,以及第二转换单元,如果由选择部分选择了控制器,则执行不同于第一转换的第二转换, 在对象数据上将第一控制单元中管理的对象数据转换为第二控制单元中的数据。 利用该配置,磁盘阵列装置实现了对不同控制单元管理数据的不同类型的存储单元的可访问性的改进。

    Disk management method, disk management device and storage system
    16.
    发明授权
    Disk management method, disk management device and storage system 有权
    磁盘管理方法,磁盘管理设备和存储系统

    公开(公告)号:US07925919B2

    公开(公告)日:2011-04-12

    申请号:US12234940

    申请日:2008-09-22

    IPC分类号: G06F11/00

    摘要: A disk management method for managing a disk management device for writing and reading data to and from a disk drive in which a recording medium is managed in a first control unit. The disk management method includes an error checking operation for checking an error on the recording medium in the first control unit, an error correction operation for correcting the error detected in the error, an error correcting operation for correcting the error detected in the error checking operation after converting data including the error to the second control unit, a data loss registration operation for registering a region in which data are lost due to an inconsistency between the first control unit and second control unit in a data loss region table, and a data loss recovery operation for recovering the loss of data with reference to the data loss region table.

    摘要翻译: 一种用于管理磁盘管理装置的磁盘管理方法,用于向第一控制单元中管理记录介质的磁盘驱动器写入和读取数据。 磁盘管理方法包括用于检查第一控制单元中的记录介质上的错误的错误检查操作,用于校正在错误中检测到的错误的纠错操作,用于校正在错误检查操作中检测到​​的错误的纠错操作 在将包括错误的数据转换为第二控制单元之后,在数据丢失区域表中记录由于第一控制单元和第二控制单元之间的不一致而导致数据丢失的区域的数据丢失登记操作,以及数据丢失 参考数据丢失区域表恢复数据丢失的恢复操作。

    Control method and storage device
    17.
    发明授权
    Control method and storage device 有权
    控制方法和存储设备

    公开(公告)号:US08225136B2

    公开(公告)日:2012-07-17

    申请号:US12480851

    申请日:2009-06-09

    IPC分类号: G06F11/10

    CPC分类号: G06F11/1076 G06F2211/1059

    摘要: A control method includes the steps of storing data in a cache; generating parity data corresponding to the data stored in the cache and storing the parity data in a buffer; writing the data stored in the cache and the parity data stored in the buffer into a plurality of the storage units; reading the data and the parity data from the plurality of storage units; checking error over the read out data by using the read out parity data; storing, if an error is detected in the read out data and the read out parity data, data for reading a plurality of data constituting a stripe in each of the plurality of storage units in the buffer, regenerating parity data by using the plurality of data readout from the storage units; and overwriting the plurality of data and the parity data into the plurality of the storage units.

    摘要翻译: 控制方法包括将数据存储在高速缓存中的步骤; 产生与存储在高速缓存中的数据相对应的奇偶校验数据,并将奇偶校验数据存储在缓冲器中; 将存储在高速缓存中的数据和存储在缓冲器中的奇偶校验数据写入多个存储单元; 从多个存储单元读取数据和奇偶校验数据; 通过使用读出的奇偶校验数据检查读出的数据的错误; 存储如果在读出数据和读出的奇偶校验数据中检测到错误的数据,则用于读取在缓冲器中的多个存储单元中的每一个中构成条带的多个数据的数据,通过使用多个数据来再生奇偶校验数据 从存储单元读出; 并将多个数据和奇偶校验数据重写到多个存储单元中。

    Data writing method
    18.
    发明授权
    Data writing method 有权
    数据写入方式

    公开(公告)号:US08015435B2

    公开(公告)日:2011-09-06

    申请号:US12369389

    申请日:2009-02-11

    IPC分类号: G06F11/00

    摘要: According to an aspect of an embodiment, a method for controlling a controller connected to a plurality of storage units storing data, the controller including a cache and a buffer, the method comprising the steps of: storing data in the cache; generating parity data corresponding to the data and storing the parity data in the buffer; writing the data and the parity data into the plurality of the storage units; comparing the parity data stored in the buffer with the parity data written into and read out from at least one of the storage unit; deleting, when the parity data stored in the buffer is different from the parity data read out from the storage unit, the parity data from the buffer; and regenerating parity data from data stored in the cache and rewriting the regenerated parity data into at least one of the storage unit.

    摘要翻译: 根据实施例的一个方面,一种用于控制连接到存储数据的多个存储单元的控制器的方法,所述控制器包括高速缓存和缓冲器,所述方法包括以下步骤:将数据存储在所述高速缓存中; 产生与数据相对应的奇偶校验数据并将奇偶校验数据存储在缓冲器中; 将数据和奇偶校验数据写入多个存储单元; 将存储在缓冲器中的奇偶校验数据与写入并从存储单元中的至少一个读出的奇偶校验数据进行比较; 当存储在缓冲器中的奇偶校验数据与从存储单元读出的奇偶校验数据不同时,删除来自缓冲器的奇偶校验数据; 以及从存储在所述高速缓存中的数据重新生成奇偶校验数据,并将所述再生的奇偶校验数据重写到所述存储单元中的至少一个中。

    Data reading method
    19.
    发明授权
    Data reading method 有权
    数据读取方式

    公开(公告)号:US07949895B2

    公开(公告)日:2011-05-24

    申请号:US12259664

    申请日:2008-10-28

    IPC分类号: G06F11/00

    摘要: According to an aspect of an embodiment, a method for controlling a controller connected to a plurality of storage units which are arranged in a redundant configuration, the controller reading data stored in the plurality of storage units in accordance with requests received from a host computer, the method comprising the steps of: receiving requests to read data successively from one of the storage units from the host computer; reading a part of requested target data from said one of the storage units; reading associated data and parity data stored in other storage units corresponding to other part of requested target data; generating other part of requested target data on the basis of the associated data and the parity data read out from the other storage units; and transmitting the part of the target data and the other part of the target data to the host computer.

    摘要翻译: 根据实施例的一个方面,一种用于控制连接到以冗余配置布置的多个存储单元的控制器的方法,所述控制器根据从主计算机接收的请求读取存储在所述多个存储单元中的数据, 该方法包括以下步骤:从主计算机接收从一个存储单元连续读取数据的请求; 从所述存储单元中的一个读取所请求的目标数据的一部分; 读取存储在与所请求的目标数据的其他部分相对应的其他存储单元中的关联数据和奇偶校验数据; 根据相关联的数据和从其他存储单元读出的奇偶校验数据产生所请求的目标数据的其他部分; 并将目标数据的一部分和目标数据的另一部分发送到主计算机。