System and method for controlling cache memories, computer system, hard disk drive unit, and hard disk control unit
    1.
    发明授权
    System and method for controlling cache memories, computer system, hard disk drive unit, and hard disk control unit 失效
    用于控制高速缓冲存储器,计算机系统,硬盘驱动器单元和硬盘控制单元的系统和方法

    公开(公告)号:US06629200B1

    公开(公告)日:2003-09-30

    申请号:US09687270

    申请日:2000-10-13

    IPC分类号: G06F1208

    摘要: A system and method are provided that reduce the amount of data held commonly in both high-ranking and low-ranking cache memories, thereby having each of those cache memories hold data more efficiently. More particularly, a computer system is provided with an HDC card 21 connected to an expansion bus 20 and an HDD unit 22 connected to the HDC card 21. The HDC card 21 is provided with a disk cache (high-ranking cache memory) and the HDD unit 22 is provided with a disk cache 54 (low-ranking cache memory). The HDC card 21 and the HDD unit 22 exchange select information for selecting a swap mode of each cache memory when the system is started up, thereby selecting different swap modes according to the exchanged select information respectively.

    摘要翻译: 提供了一种系统和方法,其减少了高级和低级高速缓存存储器中共同保存的数据量,从而使这些高速缓冲存储器中的每一个更有效地保存数据。 更具体地,计算机系统设置有连接到扩展总线20的HDC卡21和连接到HDC卡21的HDD单元22.HDC卡21设置有磁盘高速缓存(高级缓存存储器),并且 HDD单元22设置有盘缓存54(低级缓存存储器)。 当系统启动时,HDC卡21和HDD单元22交换用于选择每个高速缓冲存储器的交换模式的选择信息,从而分别根据所交换的选择信息来选择不同的交换模式。

    Data storage device and control method with buffer control thereof
    3.
    发明授权
    Data storage device and control method with buffer control thereof 失效
    数据存储装置及其缓冲控制方法

    公开(公告)号:US07451261B2

    公开(公告)日:2008-11-11

    申请号:US11317029

    申请日:2005-12-22

    IPC分类号: G06F12/00 G06F5/00

    摘要: Embodiments of the invention improve the cache hit ratio of read data. A hard disk drive (HDD) according to an embodiment of the present invention determines whether the read buffer should be used in its entirety or the partial continuous space should be used to read read-data from the magnetic disk. When the HDD determines use of the partial continuous space, the HDD specifies the sub-buffer which is a continuous space wherein the leading-end position and the trailing-end position are coupled to each other, and executes data writing to the sub-buffer in parallel with data reading from the sub-buffer and transmission thereof to the host. The sub-buffer capacity coincides with the data length of the back data.

    摘要翻译: 本发明的实施例提高读取数据的高速缓存命中率。 根据本发明的实施例的硬盘驱动器(HDD)确定读缓冲器是否应被整体使用,或者部分连续空间应用于从磁盘读取读取数据。 当HDD确定使用部分连续空间时,HDD指定作为连续空间的子缓冲器,其中前端位置和后端位置彼此耦合,并且执行对子缓冲器的数据写入 与从子缓冲器的数据读取并将其传输到主机并行。 子缓冲器容量与背面数据的数据长度一致。

    Media drive and command execution method thereof
    4.
    发明申请
    Media drive and command execution method thereof 失效
    媒体驱动器及其指令执行方法

    公开(公告)号:US20060106980A1

    公开(公告)日:2006-05-18

    申请号:US11271397

    申请日:2005-11-10

    IPC分类号: G06F13/00

    摘要: 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.

    摘要翻译: 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。

    Disk drive device and method for determining data track format of the disk drive device
    5.
    发明授权
    Disk drive device and method for determining data track format of the disk drive device 有权
    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

    公开(公告)号:US08009376B2

    公开(公告)日:2011-08-30

    申请号:US12283731

    申请日:2008-09-12

    IPC分类号: G11B5/09

    摘要: 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.

    摘要翻译: 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。

    Rotating disk storage device and recording method
    6.
    发明申请
    Rotating disk storage device and recording method 审中-公开
    旋转盘存储装置及记录方法

    公开(公告)号:US20070189137A1

    公开(公告)日:2007-08-16

    申请号:US11652387

    申请日:2007-01-10

    IPC分类号: G11B20/10

    摘要: Embodiments in accordance with the present invention provide methods to record, in a rotating disk storage device, a data block in the unit of a logical sector on a recording medium on which a physical sector including a plurality of logical sectors is formatted. Extra addresses are acquired in a buffer to record write data blocks transferred from a host device. Data blocks are read from the recording medium in the unit of a physical sector. A skip read section discards data blocks having the same data blocks as the write data blocks by removing them from the read data blocks, and sends the remaining data blocks to the buffer. The buffer stores the data blocks in the order of recording in a physical sector.

    摘要翻译: 根据本发明的实施例提供了在旋转盘存储装置中在其上包括多个逻辑扇区的物理扇区被格式化的记录介质上以逻辑扇区为单位记录数据块的方法。 在缓冲器中获取附加地址以记录从主机设备传送的写入数据块。 数据块以物理扇区为单位从记录介质读取。 跳过读取部分通过从读取的数据块中移除与写入数据块相同的数据块来丢弃数据块,并将剩余的数据块发送到缓冲器。 缓冲器按照物理扇区中的记录顺序存储数据块。

    Data transmission control method and storage device
    8.
    发明申请
    Data transmission control method and storage device 失效
    数据传输控制方法和存储设备

    公开(公告)号:US20050166014A1

    公开(公告)日:2005-07-28

    申请号:US11031494

    申请日:2005-01-07

    IPC分类号: G06F3/06 G06F12/00

    摘要: Embodiments of the invention raise the performance of a HDD by controlling the timing of notifying of command completion. In one embodiment, transmission of command completion notifications to a host is managed by a host interface manager. If two data write addresses respectively for two queued commands are adjacent or near to each other, that is, these addresses on the magnetic disk can be accessed without rotational latency, the host interface manager postpones the transmission of a command completion notification (X) concerning the first write command (X). Two command completion notifications (X) and (Y) are performed at a time after the write data (Y) for the next command is transmitted and its write to the medium is completed.

    摘要翻译: 本发明的实施例通过控制指令完成通知的定时来提高HDD的性能。 在一个实施例中,主机接口管理器管理向主机发送命令完成通知。 如果两个排队命令的两个数据写入地址彼此相邻或相邻,也就是磁盘上的这些地址可以无转动等待时间被访问,主机接口管理器推迟发送命令完成通知(X) 第一个写命令(X)。 在发送下一个命令的写入数据(Y)并且其对介质的写入完成之后的时刻执行两个命令完成通知(X)和(Y)。

    Disk drive device and method for determining data track format of the disk drive device
    10.
    发明申请
    Disk drive device and method for determining data track format of the disk drive device 有权
    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

    公开(公告)号:US20090080100A1

    公开(公告)日:2009-03-26

    申请号:US12283731

    申请日:2008-09-12

    IPC分类号: G11B5/09

    摘要: 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.

    摘要翻译: 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。