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    • 10. 发明申请
    • Data storage device and buffer control method thereof
    • 数据存储装置及其缓冲控制方法
    • US20060129716A1
    • 2006-06-15
    • US11285909
    • 2005-11-23
    • Takahiro SaitoTakayuki YamaguchiAtsushi KanamaruShuhji Yamada
    • Takahiro SaitoTakayuki YamaguchiAtsushi KanamaruShuhji Yamada
    • G06F5/00
    • G06F3/0656G06F3/0611G06F3/0676
    • Embodiments of the invention reduce the host's wait time by controlling buffer for a data storage device. In a hard disk drive (HDD) disclosed herein, after write data from a host is stored in a write buffer, the size of a continuous free space left forward from the end position of the stored write data is detected. If the size is smaller than a criterion size, that is, the size is not large enough to store the next command's write data, the write buffer is searched for a continuous free space not smaller than the criterion size. If a continuous free space not smaller than the criterion size is detected, the HDD sets a write pointer to the continuous free space. This makes it possible to receive the next write data from the host and therefore reduce the host's wait time.
    • 本发明的实施例通过控制数据存储设备的缓冲器来减少主机的等待时间。 在本文所公开的硬盘驱动器(HDD)中,在将来自主机的写入数据存储在写入缓冲器中之后,检测从存储的写入数据的结束位置向前留下的连续自由空间的大小。 如果尺寸小于标准尺寸,也就是说,尺寸不够大,不足以存储下一个命令的写入数据,则搜索写入缓冲区以获得不小于标准尺寸的连续可用空间。 如果检测到不小于标准尺寸的连续可用空间,则HDD设置到连续可用空间的写指针。 这使得可以从主机接收下一个写入数据,从而减少主机的等待时间。