Access method, computer and recording medium
    1.
    发明授权
    Access method, computer and recording medium 有权
    访问方式,计算机和记录介质

    公开(公告)号:US08843672B2

    公开(公告)日:2014-09-23

    申请号:US13418714

    申请日:2012-03-13

    IPC分类号: G06F3/00 G06F11/34

    摘要: An access method includes: obtaining, by a computer, a result of monitoring a busy rate and a number of access operations per unit time of a storage device, the storage device having a first storage area and a second storage area; calculating a characteristic of correlation between the busy rate and the number of access operations per unit time based on the result; calculating a second number of access operations per unit time based on the characteristic of the correlation such that a sum of a first busy rate corresponding to a first number of access operations per unit time and a second busy rate corresponding to a second number of access operations per unit time becomes equal to or lower than a given busy rate; and controlling a number of operations to access the second storage area per unit time based on the second number of access operations.

    摘要翻译: 访问方法包括:由计算机获取监视存储设备每单位时间的繁忙率和访问次数的结果,所述存储设备具有第一存储区域和第二存储区域; 基于结果计算每单位时间的繁忙率和访问次数之间的相关性的特征; 基于所述相关性的特征来计算每单位时间的第二数量的访问操作,使得对应于每单位时间的第一次访问操作的第一繁忙速率和与第二次访问操作相对应的第二繁忙速率的总和 每单位时间变得等于或低于给定的繁忙率; 以及基于所述第二数量的访问操作来控制每单位时间访问所述第二存储区域的操作的数量。

    Disk array apparatus, data distribution and management method, and data distribution and management program
    4.
    发明授权
    Disk array apparatus, data distribution and management method, and data distribution and management program 有权
    磁盘阵列设备,数据分发和管理方法,数据分发与管理程序

    公开(公告)号:US08234446B2

    公开(公告)日:2012-07-31

    申请号:US12636268

    申请日:2009-12-11

    IPC分类号: G06F12/00

    CPC分类号: G06F11/1076 G06F2211/104

    摘要: A parity-data generating unit generates, in response to a write request containing update data, updated parity data in the parity group to which the update data belongs. A time-series-information generating unit generates time-series information indicating an anteroposterior relationship during writing between the update data and existing data stored in the unit storage area to which the update data is to be written. A time-series-information adding unit adds the time-series information, generated in response to the write request, to the update data as certification time-series information and that adds comparison time-series information to the updated parity data in association with the update data, the comparison time-series information having the same value as the certification time-series information. A writing unit distributes and writes, to the multiple storage devices, the update data to which the certification time-series information is added and the updated parity data to which the comparison time-series information is added.

    摘要翻译: 奇偶校验数据生成单元响应于包含更新数据的写入请求,生成更新数据所属的奇偶校验组中的更新奇偶校验数据。 时间序列信息生成单元生成指示更新数据与存储在更新数据要被写入的单位存储区域中的现有数据之间的写入期间的前后关系的时间序列信息。 时间序列信息添加单元将作为响应于写入请求生成的时间序列信息添加到作为认证时间序列信息的更新数据,并且将比较时间序列信息与更新的奇偶校验数据相关联地将比较时间序列信息与 更新数据,比较时间序列信息具有与认证时间序列信息相同的值。 写入单元向多个存储设备分发并添加添加有认证时间序列信息的更新数据和添加了比较时间序列信息的更新的奇偶校验数据。

    Allocation control program and allocation control device
    6.
    发明申请
    Allocation control program and allocation control device 审中-公开
    分配控制程序和分配控制装置

    公开(公告)号:US20100217933A1

    公开(公告)日:2010-08-26

    申请号:US12709863

    申请日:2010-02-22

    IPC分类号: G06F12/00 G06F12/02

    摘要: An allocation control device divides the storage management devices into groups based on grouping factors. It generates group management information about each group based on the grouping factors corresponding to storage management devices belonging to the group. It obtains logical volume information about a subject logical volume to be allocated to the physical storage areas, the logical volume information indicating the capacity of the subject logical volume and a predicted capability value of the subject logical volume. It acquires the physical storage areas to which the subject logical volume is to be allocated, based on the logical volume information and the group management information. It selects one of the groups for which the maximum processing capability is higher than the predicted capability value of the subject logical volume. It allocates divisional areas of the subject logical volume to the physical storage areas in the selected group.

    摘要翻译: 分配控制装置根据分组因素将存储管理装置分成组。 根据与属于该组的存储管理装置相对应的分组因子,生成关于每个组的组管理信息。 它获取关于要分配给物理存储区域的主题逻辑卷的逻辑卷信息,指示主题逻辑卷的容量的逻辑卷信息和主题逻辑卷的预测能力值。 根据逻辑卷信息和组管理信息,获取要分配主体逻辑卷的物理存储区域。 它选择最大处理能力高于主题逻辑卷的预测能力值的组之一。 它将主题逻辑卷的分区分配给所选组中的物理存储区域。

    Computer program, apparatus, and method for managing data
    8.
    发明授权
    Computer program, apparatus, and method for managing data 失效
    用于管理数据的计算机程序,设备和方法

    公开(公告)号:US08458425B2

    公开(公告)日:2013-06-04

    申请号:US12959674

    申请日:2010-12-03

    IPC分类号: G06F13/00

    摘要: A computer in a disk node executes a data management program. A deduplication-eligible data unit detection module detects a data unit whose deduplication grace period after last write time has expired. A deduplication address fetch module interacts with an index server to obtain a deduplication address associated with a unique value of data stored in a constituent storage space allocated to the data unit that is found to be deduplication-eligible. A constituent storage space deallocation module stores the obtained deduplication address in a data unit record memory, together with information indicating the detected data unit. Simultaneously a constituent storage space deallocation module releases the allocated constituent storage space from the detected data unit.

    摘要翻译: 磁盘节点中的计算机执行数据管理程序。 重复数据删除条件数据单元检测模块检测最后写入时间之后的重复数据删除宽限期到期的数据单元。 重复数据删除地址提取模块与索引服务器交互以获得与存储在分配给数据单元的组成存储空间中的唯一的数据值相关联的重复数据删除地址,该数据单元被发现是重复数据删除符合条件的。 构成存储空间解除分配模块将获得的重复数据删除地址连同指示检测到的数据单元的信息一起存储在数据单元记录存储器中。 同时,构成存储空间解除分配模块从检测到的数据单元释放所分配的构成存储空间。

    Storage control program, storage control apparatus, and storage control method
    10.
    发明授权
    Storage control program, storage control apparatus, and storage control method 失效
    存储控制程序,存储控制装置和存储控制方法

    公开(公告)号:US07822923B2

    公开(公告)日:2010-10-26

    申请号:US11806521

    申请日:2007-05-31

    IPC分类号: G06F12/00

    CPC分类号: G06F12/0866 G06F2212/314

    摘要: There is provided a storage control program, a storage control apparatus, and a storage control method capable of improving a random read performance for a logging operation.A storage control program allows a computer to control a storage apparatus and causes the computer to execute: a data write step that logs data to the storage apparatus based on a write request from outside; and a position information control step that can write position information in a cache apparatus connected to the computer through a network. The position information is equivalent to correspondence between a logical position specified by the write request and a physical position in the storage apparatus where the data write step logs data.

    摘要翻译: 提供了能够提高日志操作的随机读取性能的存储控制程序,存储控制装置和存储控制方法。 存储控制程序允许计算机控制存储装置并使计算机执行:基于来自外部的写请求将数据记录到存储装置的数据写入步骤; 以及位置信息控制步骤,其可以通过网络将位置信息写入连接到计算机的高速缓存装置。 位置信息等同于由写入请求指定的逻辑位置与数据写入步骤记录数据的存储装置中的物理位置之间的对应关系。