Invention Grant
US08484413B2 Recording medium storing control program for decentralized data, storage management program, control node, and disk node 有权
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

  • Patent Title: Recording medium storing control program for decentralized data, storage management program, control node, and disk node
  • Patent Title (中): 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
  • Application No.: US12570556
    Application Date: 2009-09-30
  • Publication No.: US08484413B2
    Publication Date: 2013-07-09
  • Inventor: Yasuo NoguchiHideki Sakurai
  • Applicant: Yasuo NoguchiHideki Sakurai
  • Applicant Address: JP Kawasaki
  • Assignee: Fujitsu Limited
  • Current Assignee: Fujitsu Limited
  • Current Assignee Address: JP Kawasaki
  • Agency: Staas & Halsey LLP
  • Priority: JP2008-305960 20081201
  • Main IPC: G06F12/00
  • IPC: G06F12/00
Recording medium storing control program for decentralized data, storage management program, control node, and disk node
Abstract:
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.
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