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    • 10. 发明申请
    • STORAGE APPARATUS AND METHOD OF CONTROLLING STORAGE APPARATUS
    • 存储设备和存储设备的控制方法
    • WO2013061368A1
    • 2013-05-02
    • PCT/JP2011/005968
    • 2011-10-26
    • HITACHI, LTD.KIKUCHI, MasayukiSAITO, SatoshiKATAYAMA, KanaHOSOBUCHI, Yoshihiko
    • KIKUCHI, MasayukiSAITO, SatoshiKATAYAMA, KanaHOSOBUCHI, Yoshihiko
    • G06F3/06
    • G06F3/0665G06F3/0608G06F3/061G06F3/0646G06F3/0653G06F3/0685
    • A storage apparatus 10 provides a server apparatus 3 with virtual volumes 71 in thin provisioning; allocates a physical page to each pool page from a storage pool 7 that is able to provide a plurality of types of physical pages classified into tiers, the pool page being an allocation unit of a storage area to the virtual volumes 71; stores an I/O count of each of the pool pages, the I/O count indicating a number of the I/O requests 50 issued to each pool page; stores an I/O count policy set for each of the applications; when receiving an I/O request 50, counts the I/O count of each of the pool pages in accordance with the I/O count policy set for the application having sent the I/O request 50; determines the tier of the physical page to be allocated to each pool page according to the I/O count of each pool page; and allocating the physical page in the tier determined for each of the pool pages, to each of the pool pages.
    • 存储装置10在服务器装置3中以精简配置为虚拟卷71提供虚拟卷71。 从存储池7分配物理页面到存储池7,存储池7能够提供分类为层的多个类型的物理页面,池页面是到虚拟卷71的存储区域的分配单元; 存储每个池页面的I / O计数,指示每个池页面发出的I / O请求50的数量的I / O计数; 存储为每个应用程序设置的I / O计数策略; 当接收到I / O请求50时,根据为发送I / O请求50的应用设置的I / O计数策略对每个池页面的I / O计数进行计数; 根据每个池页面的I / O数量确定要分配给每个池页面的物理页面的层次; 以及将为每个池页面确定的层中的物理页面分配给每个池页面。