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    APPARATUS, SYSTEM, AND METHOD FOR CACHING DATA ON A SOLID-STATE STORAGE DEVICE
    3.
    发明公开
    APPARATUS, SYSTEM, AND METHOD FOR CACHING DATA ON A SOLID-STATE STORAGE DEVICE 审中-公开
    设备，系统和方法缓存数据存储在固态存储设备

    公开(公告)号：EP2476055A4

    公开(公告)日：2013-07-24

    申请号：EP10816043

    申请日：2010-09-08

    申请人： FUSION IO INC

    发明人： FLYNN DAVID ,  STRASSER JOHN ,  THATCHER JONATHAN ,  ATKISSON DAVID ,  ZAPPE MICHAEL ,  AUNE JOSHUA ,  VIGOR KEVIN B

    IPC分类号： G06F13/14 ,  G06F3/06

    CPC分类号： G06F12/0246 ,  G06F12/0866 ,  G06F2212/214 ,  G06F2212/7201 ,  G06F2212/7205 ,  G06F2212/7207

    摘要： An apparatus, system, and method are disclosed for caching data on a solid-state storage device. The solid-state storage device maintains metadata pertaining to cache operations performed on the solid-state storage device, as well as storage operations of the solid-state storage device. The metadata indicates what data in the cache is valid, as well as information about what data in the nonvolatile cache has been stored in a backing store. A backup engine works through units in the nonvolatile cache device and backs up the valid data to the backing store. During grooming operations, the groomer determines whether the data is valid and whether the data is discardable. Data that is both valid and discardable may be removed during the grooming operation. The groomer may also determine whether the data is cold in determining whether to remove the data from the cache device. The cache device may present to clients a logical space that is the same size as the backing store. The cache device may be transparent to the clients.