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    • 3. 发明授权
    • Buffer management for increased write speed in large sector data storage device
    • 缓存管理,用于在大型扇区数据存储设备中提高写入速度
    • US09298393B2
    • 2016-03-29
    • US12138022
    • 2008-06-12
    • KokChoon SeeWesley ChanCheeSeng TohPohGuat BayChweeFern EeYongPeng Chng
    • KokChoon SeeWesley ChanCheeSeng TohPohGuat BayChweeFern EeYongPeng Chng
    • G06F3/06G06F12/08
    • G06F3/0661G06F3/0613G06F3/0656G06F3/0676G06F12/0868
    • An intelligent write command routine improves the operational efficiency of a data storage device (DSD) by avoiding media access of the disk when a logical block address (LBA) and the physical sector are unaligned, thus reducing write time. When a write command is received by the DSD from the host, the intelligent write command routine maintains the read data of the read buffer, instead of clearing the read buffer and performing a read of the target sector on the disk per standard protocol. The intelligent write command copies the necessary adjacent sector data from the read buffer as a data patch to the write buffer to splice around the write data received with the write command. Following each write command, the data written to the disk in the write buffer is copied to the read buffer. The read buffer is maintained with the most current data on the disk and does not need to be flushed unless the LBA of the write command is beyond the data ranges stored in the read buffer.
    • 智能写命令例程通过在逻辑块地址(LBA)和物理扇区未对齐时避免磁盘的介质访问来提高数据存储设备(DSD)的操作效率,从而减少写入时间。 当DSD从主机接收到写入命令时,智能写入命令例程维护读取缓冲器的读取数据,而不是清除读取缓冲区,并根据标准协议对磁盘上的目标扇区进行读取。 智能写入命令将读取缓冲器中必要的相邻扇区数据作为数据补丁复制到写入缓冲区,以便使用write命令接收的写入数据进行拼接。 在每个写命令之后,写入缓冲区中的磁盘的数据被复制到读缓冲区。 读取缓冲区用磁盘上最新的数据进行维护,除非写入命令的LBA超出存储在读取缓冲区中的数据范围,否则不需要刷新读取缓冲区。
    • 5. 发明申请
    • Buffer Management for Increased Write Speed in Large Sector Data Storage Device
    • 缓存管理,提高大容量数据存储设备的写速度
    • US20090313426A1
    • 2009-12-17
    • US12138022
    • 2008-06-12
    • KokChoon SeeWesley ChanCheeSeng TohPohGuat BayChweeFern EeYongPeng Chng
    • KokChoon SeeWesley ChanCheeSeng TohPohGuat BayChweeFern EeYongPeng Chng
    • G06F12/00
    • G06F3/0661G06F3/0613G06F3/0656G06F3/0676G06F12/0868
    • An intelligent write command routine improves the operational efficiency of a data storage device (DSD) by avoiding media access of the disk when a logical block address (LBA) and the physical sector are unaligned, thus reducing write time. When a write command is received by the DSD from the host, the intelligent write command routine maintains the read data of the read buffer, instead of clearing the read buffer and performing a read of the target sector on the disk per standard protocol. The intelligent write command copies the necessary adjacent sector data from the read buffer as a data patch to the write buffer to splice around the write data received with the write command. Following each write command, the data written to the disk in the write buffer is copied to the read buffer. The read buffer is maintained with the most current data on the disk and does not need to be flushed unless the LBA of the write command is beyond the data ranges stored in the read buffer.
    • 智能写命令例程通过在逻辑块地址(LBA)和物理扇区未对齐时避免磁盘的介质访问来提高数据存储设备(DSD)的操作效率,从而减少写入时间。 当DSD从主机接收到写入命令时,智能写入命令例程维护读取缓冲器的读取数据,而不是清除读取缓冲区,并根据标准协议对磁盘上的目标扇区进行读取。 智能写入命令将读取缓冲器中必要的相邻扇区数据作为数据补丁复制到写入缓冲区,以便使用write命令接收的写入数据进行拼接。 在每个写命令之后,写入缓冲区中的磁盘的数据被复制到读缓冲区。 读取缓冲区用磁盘上最新的数据进行维护,除非写入命令的LBA超出存储在读取缓冲区中的数据范围,否则不需要刷新读取缓冲区。
    • 6. 发明申请
    • Interlaced even and odd address mapping
    • 隔行偶数和奇数地址映射
    • US20070050593A1
    • 2007-03-01
    • US11214967
    • 2005-08-30
    • HuaYuan ChenYongpeng ChngCheeSeng TohWesley ChanPohguat Bay
    • HuaYuan ChenYongpeng ChngCheeSeng TohWesley ChanPohguat Bay
    • G06F12/00
    • G06F3/064G06F3/0613G06F3/0676
    • An interlaced even and odd mapping maps between a logical address space and a physical address space. In one embodiment, an interlaced even and odd mapping scheme provides for converting between a target logical block address (LBA) and a target physical disc sector or cylinder head sector (CHS). In other embodiments, the mapping may be used in any application wherein address translation is desired between address spaces. For example, the mapping may be used to convert between a target logical address space and a target physical address space in a digital computer environment that includes a data storage device, such as a disc drive, for persistent storage. The interlaced even and odd mapping scheme allows for larger physical sector sizes on the data storage device than the logical sector sizes on a host computer.
    • 隔行偶数和奇数映射在逻辑地址空间和物理地址空间之间映射。 在一个实施例中,隔行偶数和奇数映射方案提供在目标逻辑块地址(LBA)和目标物理盘扇区或气缸头扇区(CHS)之间的转换。 在其他实施例中,映射可以用于在地址空间之间需要地址转换的任何应用中。 例如,映射可以用于在数字计算机环境中的目标逻辑地址空间和目标物理地址空间之间进行转换,数字计算机环境包括用于持久存储的诸如盘驱动器的数据存储设备。 隔行偶数和奇数映射方案允许在数据存储设备上比主计算机上的逻辑扇区大小更大的物理扇区大小。