Use of application data and garbage-collected data to improve write efficiency of a data storage device
    1.
    发明授权
    Use of application data and garbage-collected data to improve write efficiency of a data storage device 有权
    使用应用数据和垃圾回收数据来提高数据存储设备的写入效率

    公开(公告)号:US09436595B1

    公开(公告)日:2016-09-06

    申请号:US13840838

    申请日:2013-03-15

    Applicant: Google Inc.

    Abstract: A data storage device includes a plurality of flash memory devices. A memory controller is configured to receive a request from a host computing device to write a first logical block of application data to the data storage device, write the first logical block to a data buffer, wherein a size of the data buffer is larger than the logical block and may store multiple logical blocks, write one or more logical blocks of garbage-collected data to the data buffer, and write the logical blocks in the data buffer to the data storage device when the data buffer becomes full. The data buffer written to the data storage device includes at least one logical block of application data and at least one logical block of garbage-collected data. In an alternative implementation, garbage-collected data may be written to the data buffer upon expiration of a timer.

    Abstract translation: 数据存储装置包括多个闪存装置。 存储器控制器被配置为接收来自主机计算设备的请求以将第一逻辑应用数据块写入数据存储设备,将第一逻辑块写入数据缓冲器,其中数据缓冲器的大小大于 逻辑块并且可以存储多个逻辑块,将一个或多个垃圾回收数据的逻辑块写入数据缓冲器,并且当数据缓冲器变满时,将数据缓冲器中的逻辑块写入数据存储设备。 写入数据存储装置的数据缓冲器包括应用数据的至少一个逻辑块和垃圾回收数据的至少一个逻辑块。 在替代实现中,在定时器到期时,垃圾回收数据可以写入数据缓冲器。

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