发明名称 STORAGE DEVICE, COMPUTER READABLE RECORDING MEDIUM, AND STORAGE DEVICE CONTROL METHOD
摘要 A group generation unit 111 regards, as an invalid area, an area of a first storage medium in which data to be updated is stored and stores updated data in the first storage medium. A reorganization processing unit executes a process of selecting some first groups, calculating, for each of the selected first groups, the number of second storage media to be secured to store data that is stored in an area other than the invalid area of the first storage medium, securing the second storage media according to the levels of priority that are determined according to the calculated number, and transferring the data that is stored in the area other than the invalid area of the first storage medium to the second storage media. A volume management unit moves, to a second group, the first medium on which the transfer performed by the reorganization processing unit completes.
申请公布号 US2017068483(A1) 申请公布日期 2017.03.09
申请号 US201615228478 申请日期 2016.08.04
申请人 FUJITSU LIMITED 发明人 Uchiyama Kenji
分类号 G06F3/06 主分类号 G06F3/06
代理机构 代理人
主权项 1. A storage device comprising: a plurality of storage media; a group management unit that manages a plurality of first groups to each of which a first storage medium in which data is stored among the storage media belongs and a second group to which a second storage medium in which no data is stored among the storage media belongs; a data storage unit that regards, as an invalid area, an area of the first storage medium in which data to be updated is stored and that stores, in the first storage medium, updated data from the data; a data transfer unit that executes a process of selecting some of the first groups, calculating, for each of the selected first groups, the number of the second storage media to be secured to store data that is stored in an area other than the invalid area of the first storage medium having the invalid area, securing the second storage media according to the levels of priority that are determined according to the number of the second storage media to be secured, and transferring the data that is stored in the area other than the invalid area of the first storage medium to the second storage media; and a moving unit that moves, to the second group, the first medium which belongs in the first group and on which the transfer performed by the data transfer unit completes.
地址 Kawasaki-shi JP