STAGING METHOD FOR DISK ARRAY APPARATUS
    11.
    发明申请
    STAGING METHOD FOR DISK ARRAY APPARATUS 审中-公开
    磁盘阵列设备的分析方法

    公开(公告)号:US20080155193A1

    公开(公告)日:2008-06-26

    申请号:US11864091

    申请日:2007-09-28

    IPC分类号: G06F12/00

    摘要: To provide a staging method capable of detecting an error in data read from a disk device during staging, a disk array control apparatus 100 includes a data read unit 101 for reading data, a first reference data generation unit 102 for generating first reference data from the read data, a second reference data generation unit 103 for similarly generating second reference data, a true-false determination unit 104 for determining whether or not the data read by the data read unit 101 is correct, and a data write unit 105 for writing data to cache memory.

    摘要翻译: 为了提供能够在分段期间检测从磁盘装置读取的数据中的错误的分段方法,磁盘阵列控制装置100包括用于读取数据的数据读取单元101,用于从第一参考数据生成单元102生成第一参考数据的第一参考数据生成单元102 读取数据,用于类似地产生第二参考数据的第二参考数据生成单元103,用于确定数据读取单元101读取的数据是否正确的真假确定单元104以及用于写入数据的数据写入单元105 缓存内存

    CONTROL METHOD AND STORAGE DEVICE
    14.
    发明申请
    CONTROL METHOD AND STORAGE DEVICE 有权
    控制方法和存储设备

    公开(公告)号:US20090313498A1

    公开(公告)日:2009-12-17

    申请号:US12480851

    申请日:2009-06-09

    IPC分类号: G06F11/20

    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。

    RAID APPARATUS, CONTROLLER OF RAID APPARATUS AND WRITE-BACK CONTROL METHOD OF THE RAID APPARATUS
    16.
    发明申请
    RAID APPARATUS, CONTROLLER OF RAID APPARATUS AND WRITE-BACK CONTROL METHOD OF THE RAID APPARATUS 有权
    RAID装置的RAID装置,RAID装置的控制器和写入控制方法

    公开(公告)号:US20090063769A1

    公开(公告)日:2009-03-05

    申请号:US12179942

    申请日:2008-07-25

    IPC分类号: G06F12/16

    摘要: A RAID apparatus includes a plurality of recording devices, a first adaptor connected to a first interface which is connected to a high-level apparatus, a controller for controlling processing of data transmitted by the high-level apparatus, and a second adaptor that connects to a second interface connected to a plurality of recording devices. The controller has a first memory area in which said data are stored, a second memory area used for a write-back of the data in said plurality of recording devices, a write-back information control unit controlling a write-back type of data stored in the first memory area and a usage state of the second memory area, a write-back data determination unit for determination of data to be written-back based on the write-back information, and a write-back execution unit for executing a write-back of the data to be written back on the plurality of recording devices.

    摘要翻译: RAID装置包括多个记录装置,连接到连接到高级装置的第一接口的第一适配器,用于控制由高级装置发送的数据的处理的控制器,以及连接到 连接到多个记录装置的第二接口。 控制器具有存储所述数据的第一存储区域,用于在所述多个记录装置中回写数据的第二存储区域,控制存储的数据的回写类型的回写信息控制单元 在所述第一存储器区域和所述第二存储区域的使用状态中,基于所述写回信息来确定要被写回的数据的写回数据确定单元,以及用于执行写入的写回执行单元 在要记录在多个记录装置上的数据的背面。