STORAGE APPARATUS, AND CONTROL METHOD AND CONTROL APPARATUS THEREFOR
    5.
    发明申请
    STORAGE APPARATUS, AND CONTROL METHOD AND CONTROL APPARATUS THEREFOR 审中-公开
    存储装置及其控制方法及控制装置

    公开(公告)号:US20120233406A1

    公开(公告)日:2012-09-13

    申请号:US13404106

    申请日:2012-02-24

    IPC分类号: G06F12/08

    摘要: A control apparatus, coupled to a storage medium via communication links, controls data write operations to the storage medium. A cache memory is configured to store a temporary copy of first data written in the storage medium. A processor receives second data with which the first data in the storage medium is to be updated, and determines whether the received second data coincides with the first data, based on comparison data read out of the storage medium, when no copy of the first data is found in the cache memory. When the second data is determined to coincide with the first data, the processor determines not to write the second data into the storage medium.

    摘要翻译: 通过通信链路耦合到存储介质的控制装置控制对存储介质的数据写入操作。 缓存存储器被配置为存储写入存储介质中的第一数据的临时拷贝。 处理器接收第二数据,存储介质中的第一数据将被更新,并且当没有第一数据的副本时,基于从存储介质读出的比较数据,确定接收到的第二数据是否与第一数据一致 被发现在缓存中。 当确定第二数据与第一数据一致时,处理器确定不将第二数据写入存储介质。

    STORAGE SYSTEM, STORAGE CONTROL APPARATUS, AND STORAGE CONTROL METHOD
    10.
    发明申请
    STORAGE SYSTEM, STORAGE CONTROL APPARATUS, 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:US20130054907A1

    公开(公告)日:2013-02-28

    申请号:US13585100

    申请日:2012-08-14

    IPC分类号: G06F12/12 G06F12/16

    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。