公开(公告)号：US20100138604A1

公开(公告)日：2010-06-03

申请号：US12570556

申请日：2009-09-30

申请人： Yasuo NOGUCHI ,  Hideki Sakurai

发明人： Yasuo NOGUCHI ,  Hideki Sakurai

IPC分类号： G06F12/00

CPC分类号： G06F11/2069 ,  G06F3/0617 ,  G06F3/065 ,  G06F3/067 ,  G06F11/2071

摘要： 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.

摘要翻译： 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。