Invention Grant
US08356205B2 Disk array device, disk control device and load distribution method in disk array device 有权
磁盘阵列设备,磁盘控制设备和磁盘阵列设备中的负载分配方法

  • Patent Title: Disk array device, disk control device and load distribution method in disk array device
  • Patent Title (中): 磁盘阵列设备,磁盘控制设备和磁盘阵列设备中的负载分配方法
  • Application No.: US12732890
    Application Date: 2010-03-26
  • Publication No.: US08356205B2
    Publication Date: 2013-01-15
  • Inventor: Osanori Fukuyama
  • Applicant: Osanori Fukuyama
  • Applicant Address: JP Tokyo
  • Assignee: NEC Corporation
  • Current Assignee: NEC Corporation
  • Current Assignee Address: JP Tokyo
  • Priority: JP2009-079588 20090327
  • Main IPC: G06F11/00
  • IPC: G06F11/00
Disk array device, disk control device and load distribution method in disk array device
Abstract:
Degree of freedom of a device structure is increased to equalize processor loads by separating the function of executing data read and write processing from the host interface and the disk interface. A disk array device including a disk enclosure and a disk control unit, wherein the disk control unit includes a host interface connected to a host computer which accesses the disk array device, a disk interface connected to the disk enclosure, a plurality of processors that execute data read and write processing between the host computer and the disk enclosure, and a switch which connects the host interface and the disk interface, and the plurality of processors, wherein the switch having a function of selecting a processor which executes the data read and write processing.
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