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    • 13. 发明申请
    • STORAGE CONTROL SYSTEM PROVIDING VIRTUAL LOGICAL VOLUMES COMPLYING WITH THIN PROVISIONING
    • 存储控制系统提供与薄型化配套的虚拟逻辑卷
    • US20120254583A1
    • 2012-10-04
    • US13125535
    • 2011-03-31
    • Kazuyoshi SerizawaYoshiaki EguchiNorio Shimozono
    • Kazuyoshi SerizawaYoshiaki EguchiNorio Shimozono
    • G06F12/10
    • G06F3/0685G06F3/0608G06F3/0644
    • A storage control system comprises a storage resource and a controller. If the controller receives a write command which specifies an address belonging to a virtual volume, to the area belonging to the address, unassigned pages in a pool which is a storage area based on a plurality of media types of physical storage media and which is divided into a plurality of pages are supposed to be assigned. The storage control system comprises a plurality of management entries which are a plurality of entries for page management information which is the information related to the pages. The plurality of management entries include two or more page entries and two or more statistical entries. A statistical entry about a certain media type corresponds to M pages based on the storage media of the certain media type (M is an integral number which is 2 or larger). The statistical entry corresponding to the M pages comprises the information related to the I/O performance value for those M pages.
    • 存储控制系统包括存储资源和控制器。 如果控制器接收到指定属于虚拟卷的地址的写入命令,则属于该地址的区域,基于多个媒体类型的物理存储介质的作为存储区域的池中的未分配页面被划分 应分配多个页面。 存储控制系统包括作为与页面相关的信息的页面管理信息的多个条目的多个管理条目。 多个管理条目包括两个或多个页面条目和两个或更多个统计条目。 关于某种媒体类型的统计条目对应于基于某种媒体类型的存储介质的M页(M是2或更大的整数)。 对应于M页的统计表项包括与这些M页面的I / O性能值相关的信息。