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    • 1. 发明申请
    • SYSTEM AND METHOD TO BUFFER DATA
    • 缓冲数据的系统和方法
    • WO2012170141A1
    • 2012-12-13
    • PCT/US2012/037068
    • 2012-05-09
    • SANDISK TECHNOLOGIES INC.ELHAMIAS, Reuven
    • ELHAMIAS, Reuven
    • G06F12/08
    • G06F12/0862G06F12/0866G06F2212/214G06F2212/221Y02D10/13
    • A data storage device includes a controller (106), a non-volatile mem¬ ory (104), and a buffer (108) accessible to the controller. The buffer is configured to store data (154, 156) retrieved from the non-volatile memory to be accessible to a host device (130) in response to receiv¬ ing from the host device one or more requests (132) for read access to the non-volatile memory. The controller is configured to read an in¬ dicator (110) of cached data in response to receiving a request for read access to the non-volatile memory. The request includes a data identifier (138). In response to the indicator of cached data not indi¬ cating that data corresponding to the data identifier is in the buffer, the controller is configured to retrieve data (144) corresponding to the data identifier as well as additional data (146) from the non-volatile memory and to write the data corresponding to the data identifier and the additional data to the buffer.
    • 数据存储设备包括控制器(106),非易失性存储器(104)和可由控制器访问的缓冲器(108)。 缓冲器被配置为存储从非易失性存储器检索的数据(154,156),以响应于从主机设备接收一个或多个用于读访问的请求(132),主机设备(130)可访问 非易失性存储器。 响应于接收到对非易失性存储器的读取访问的请求,控制器被配置为读取缓存数据的引用(110)。 请求包括数据标识符(138)。 响应于缓存数据的指示符,未指示对应于数据标识符的数据在缓冲器中,控制器被配置为从非数据标识符检索对应于数据标识符的数据(144)以及附加数据(146) 并将与数据标识符和附加数据相对应的数据写入缓冲器。