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    • 22. 发明授权
    • Recording medium storing control program for decentralized data, storage management program, control node, and disk node
    • 记录介质存储用于分散数据,存储管理程序,控制节点和磁盘节点的控制程序
    • US08484413B2
    • 2013-07-09
    • US12570556
    • 2009-09-30
    • Yasuo NoguchiHideki Sakurai
    • Yasuo NoguchiHideki Sakurai
    • G06F12/00
    • G06F11/2069G06F3/0617G06F3/065G06F3/067G06F11/2071
    • A number-of-slices collector collects number-of-slices information indicating the number of free slices, which are not assigned to a storage areas of a logical disk, from each of a plural disk nodes, divides the storage area of the corresponding storage device in units of slice, and stores an assignment relation of the slices with respect to the storage areas of the logical disk. A disk node selector selects a source disk node from among the disk nodes having the free slices, and requests a slice identifier to identify the free slice for the selected source disk node. The source disk node serves as a source providing the slice to be assigned. A slice assigner receives the slice identifier from the source disk node, and determines an assignment relation of the free slice, which is denoted by the received slice identifier, with respect to the storage areas of the logical disk.
    • 片数收集器从多个磁盘节点中的每一个收集指示没有分配给逻辑磁盘的存储区域的空闲片数的片数信息,分割相应存储器的存储区域 设备以片为单位,并且存储切片相对于逻辑盘的存储区域的分配关系。 磁盘节点选择器从具有空闲片的磁盘节点中选择源磁盘节点,并请求片标识符以识别所选源磁盘节点的空闲片。 源磁盘节点用作提供要分配的片的源。 切片分配器从源盘节点接收切片标识符,并且确定由接收到的切片标识符表示的自由切片相对于逻辑盘的存储区域的分配关系。
    • 23. 发明授权
    • Computer program, method, and apparatus for controlling data allocation
    • 用于控制数据分配的计算机程序,方法和装置
    • US08433947B2
    • 2013-04-30
    • US12966713
    • 2010-12-13
    • Yasuo NoguchiHideki Sakurai
    • Yasuo NoguchiHideki Sakurai
    • G06F11/00
    • G06F11/16
    • A computer executes a data allocation control program to control allocation of data in a plurality of disk nodes. A redundancy restoration module executes a redundancy restoration procedure by commanding disk nodes to create a new copy of redundancy-lost data. An error message reception module receives a write error message indicating a write error in a storage device during the redundancy restoration procedure and records an identifier of the faulty storage device in an error record memory. A copy command module identifies accessed data in the faulty storage device and commands a relevant disk node to create a copy of the identified data in the faulty storage device in the case where there is no redundant copy of the data.
    • 计算机执行数据分配控制程序以控制多个磁盘节点中的数据分配。 冗余恢复模块通过命令磁盘节点创建冗余丢失数据的新副本来执行冗余恢复过程。 错误消息接收模块在冗余恢复过程期间接收指示存储设备中的写入错误的写入错误消息,并将故障存储设备的标识符记录在错误记录存储器中。 复制命令模块在故障存储设备中识别访问的数据,并且在不存在数据的冗余副本的情况下,命令相关的磁盘节点来创建故障存储设备中所识别的数据的副本。