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    • 3. 发明授权
    • Disk drive device and method for determining data track format of the disk drive device
    • 用于确定磁盘驱动器装置的数据磁道格式的磁盘驱动装置和方法
    • US08009376B2
    • 2011-08-30
    • US12283731
    • 2008-09-12
    • Takahiro SaitoKazunari TsuchimotoAtsushi Kanamaru
    • Takahiro SaitoKazunari TsuchimotoAtsushi Kanamaru
    • G11B5/09
    • G11B20/1258G11B5/59644G11B20/22G11B2020/10916G11B2020/1238G11B2020/1244G11B2020/1292G11B2020/1294G11B2220/2516
    • Embodiments of the present invention help to improve the capacity and the performance of a disk drive device. According to one embodiment, a data track pitch is set to each recording surface. The recording surfaces are divided into bands. A hard disk drive (HDD) sequentially moves a head to an adjacent data track in a band and performs a head switch at the band end in its data accessing. On a recording surface, the number of data tracks in each band is variable; and each band is constituted by different number of data tracks as necessary. The number of data tracks in each band is set so that the radial position of the band end comes close to the radial position of the corresponding band end on another recording surface. Accordingly, even if the recording surfaces have different variation rates of the data track pitch in the radial direction, increase in process time due to head switches can be suppressed.
    • 本发明的实施例有助于提高磁盘驱动装置的容量和性能。 根据一个实施例,将数据轨道间距设置到每个记录表面。 记录表面被分成带。 硬盘驱动器(HDD)顺序地将磁头移动到频带中的相邻数据磁道,并在其数据访问中在频带端执行磁头切换。 在记录表面上,每个频带中的数据轨迹数是可变的; 并且每个频带由必要的不同数量的数据轨道构成。 每个带中的数据轨道的数量被设置为使得带端的径向位置接近另一个记录表面上相应带端的径向位置。 因此,即使记录面在径向方向上具有不同的数据磁道间距的变化率,也可以抑制由磁头开关引起的处理时间的增加。
    • 8. 发明申请
    • Media drive and command execution method thereof
    • 媒体驱动器及其指令执行方法
    • US20060106980A1
    • 2006-05-18
    • US11271397
    • 2005-11-10
    • Hiromi KobayashiHirofumi SaitohTakahiro SaitoTadahisa KawaAtsushi Kanamaru
    • Hiromi KobayashiHirofumi SaitohTakahiro SaitoTadahisa KawaAtsushi Kanamaru
    • G06F13/00
    • G06F3/0659G06F3/0611G06F3/0656G06F3/0676
    • Embodiments of the present invention provide a media drive capable of improving command processing performance by, when a plurality of commands is queued, shortening seek time and rotational latency, and also effectively making use of the shortened period of time. In one embodiment, a HDD includes a queue capable of storing a plurality of commands, and a queue manager for optimizing the execution order of the plurality of commands on the basis of whether or not the execution of each command requires access to a medium. The queue manager determines the execution order so that medium access processing of accessing a disk for execution, and data transfer processing of transferring data between the HDD and a host, are executed in parallel with each other. For example, read processing and transfer processing are executed in parallel with each other. The read processing is adaptive to read out a read command, data of which does not exist in the cache, from the disk into the cache. The transfer processing is adaptive to transfer a read command, data of which exists in the cache, to the host.
    • 本发明的实施例提供一种媒体驱动器,其能够通过在多个命令排队时缩短查找时间和旋转等待时间,并且还有效地利用缩短的时间段来改善命令处理性能。 在一个实施例中,HDD包括能够存储多个命令的队列,以及队列管理器,用于根据每个命令的执行是否需要访问介质来优化多个命令的执行顺序。 队列管理器确定执行顺序,使得访问用于执行的盘的介质访问处理以及在HDD和主机之间传送数据的数据传送处理彼此并行执行。 例如,读取处理和传送处理彼此并行地执行。 读取处理自适应地读出缓存中不存在其数据的读取命令从盘到高速缓存。 传输处理适应于将缓存中存在的数据的读取命令传送到主机。
    • 9. 发明授权
    • Media drive and command execution method thereof
    • 媒体驱动器及其指令执行方法
    • US07373460B2
    • 2008-05-13
    • US11271397
    • 2005-11-10
    • Hiromi KobayashiHirofumi SaitohTakahiro SaitoTadahisa KawaAtsushi Kanamaru
    • Hiromi KobayashiHirofumi SaitohTakahiro SaitoTadahisa KawaAtsushi Kanamaru
    • G06F12/00
    • G06F3/0659G06F3/0611G06F3/0656G06F3/0676
    • Embodiments of the present invention provide a media drive capable of improving command processing performance by, when a plurality of commands is queued, shortening seek time and rotational latency, and also effectively making use of the shortened period of time. In one embodiment, a HDD includes a queue capable of storing a plurality of commands, and a queue manager for optimizing the execution order of the plurality of commands on the basis of whether or not the execution of each command requires access to a medium. The queue manager determines the execution order so that medium access processing of accessing a disk for execution, and data transfer processing of transferring data between the HDD and a host, are executed in parallel with each other. For example, read processing and transfer processing are executed in parallel with each other. The read processing is adaptive to read out a read command, data of which does not exist in the cache, from the disk into the cache. The transfer processing is adaptive to transfer a read command, data of which exists in the cache, to the host.
    • 本发明的实施例提供一种媒体驱动器,其能够通过在多个命令排队时缩短查找时间和旋转等待时间,并且还有效地利用缩短的时间段来改善命令处理性能。 在一个实施例中,HDD包括能够存储多个命令的队列,以及队列管理器,用于根据每个命令的执行是否需要访问介质来优化多个命令的执行顺序。 队列管理器确定执行顺序,使得访问用于执行的盘的介质访问处理以及在HDD和主机之间传送数据的数据传送处理彼此并行执行。 例如,读取处理和传送处理彼此并行地执行。 读取处理自适应地读出缓存中不存在其数据的读取命令从盘到高速缓存。 传输处理适应于将缓存中存在的数据的读取命令传送到主机。
    • 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。