STORAGE MANAGEMENT DEVICE, STORAGE MANAGEMENT PROGRAM, AND CONTROL METHOD

• Main Authors: YASUMOTO HIDEYUKI, HAMAMOTO EIJI, OBA FUMIHIRO, MOTOI SHUNSUKE, FUJITA DAISUKE, NAKAJIMA TETSUYA, OSANAI HISASHI
• Format: Patent
• Language: English; Japanese
• Published: 21.01.2016
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

PROBLEM TO BE SOLVED: To suppress a reduction in the performance of access to a virtual storage area at a data storage destination in the case where the virtual address of the virtual storage area is allocated to the physical address of a physical storage area.SOLUTION: The present invention is a storage management device for allocating the physical address of a physical storage area to the virtual address of a virtual storage area 20 at a data storage destination, the device having: a setting unit for setting a contiguous area 20b consisting of a plurality of contiguous physical addresses in the physical storage area, and setting, on the basis of the virtual address allocated first to the physical addresses in the set contiguous area 20b, an allocation range for the virtual addresses to be allocated to the set contiguous area 20b; and an allocation unit for allocating the physical addresses of the set contiguous area 20b to the virtual addresses in the set allocation range. 【課題】データ格納先の仮想記憶領域の仮想アドレスが物理記憶領域の物理アドレスに割り当てられる場合において、仮想記憶領域へのアクセス性能の低下を抑制する。【解決手段】データの格納先の仮想記憶領域２０の仮想アドレスに、物理記憶領域の物理アドレスを割り当てるストレージ管理装置であって、前記物理記憶領域に、複数の物理アドレスが連続する連続領域２０ｂを設定し、設定した連続領域２０ｂ内の物理アドレスに最初に割り当てられた仮想アドレスに基づき、前記設定した連続領域２０ｂに割り当てる仮想アドレスの割当範囲を設定する設定部と、設定した割当範囲内の仮想アドレスに前記設定した連続領域２０ｂの物理アドレスを割り当てる割当部と、を有する。【選択図】図７