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    REWRITE METHOD AND APPARATUS FOR DATA STORAGE DEVICE
    3.
    发明公开
    REWRITE METHOD AND APPARATUS FOR DATA STORAGE DEVICE 有权
    RE-登记手续，并IPMENT用于数据存储设备

    公开(公告)号：EP1125295A1

    公开(公告)日：2001-08-22

    申请号：EP99955115.3

    申请日：1999-10-20

    申请人： Ecrix Corporation

    发明人： ZACZEK, Thomas, E.

    IPC分类号： G11B20/18

    CPC分类号： G11B20/1883 ,  G11B20/1833 ,  G11B20/1879 ,  G11B2220/90

    摘要： A method for rewriting track packets that fail a check-after-write test onto a track of a storage medium is presented. Local packet address information is included in the track packet itself to allow track packets to be written to the storage medium in any addressing order. This allows a single packet to be rewritten along a later track among other track packets that are being recorded for the first time, thereby reducing rewrite track overhead and eliminating the requirement for a lengthy backhitching sequence.

    VARIABLE SPEED RECORDING METHOD AND APPARATUS FOR A MAGNETIC TAPE DRIVE
    5.
    发明公开
    VARIABLE SPEED RECORDING METHOD AND APPARATUS FOR A MAGNETIC TAPE DRIVE 有权
    用于磁带驱动器的变速记录方法和设备

    公开(公告)号：EP1145235A2

    公开(公告)日：2001-10-17

    申请号：EP99955108.8

    申请日：1999-10-20

    申请人： Ecrix Corporation

    发明人： BEAVERS, Kelly, J. ,  BLATCHLEY, Michael, A. ,  DETRO, David, L. ,  TURNER, Christopher, J. ,  ZACZEK, Thomas, E.

    IPC分类号： G11B15/18 ,  G11B15/467 ,  G11B15/43 ,  G11B5/008 ,  G11B15/04 ,  G11B15/06

    CPC分类号： G11B5/0086 ,  G11B5/00878 ,  G11B15/04 ,  G11B15/06 ,  G11B15/093 ,  G11B15/1875 ,  G11B15/43 ,  G11B15/4673

    摘要： A method and apparatus for varying track recording speed to maximize host-to-tape data transfer rates is presented. Variable data transfer rates of host systems and networks are accommodated by continually adjusting the tape speed to match the tape drive to the host's actual transfer rate. The speed of the tape is adjusted according to both the level of data present in the tape drive data buffer and whether the current mode of the drive is write mode or read mode. In the preferred embodiment, when the tape speed is accelerated or decelerated while writing a number of data track pairs to tape, a predetermined number of dummy track pairs are first written to tape at the current speed. On the next write head phase after the speed is increased or decreased as appropriate while the read heads are over the track, a predetermined number of dummy track pairs followed by more data track pairs are written to the tape at the new speed.

    摘要翻译： 提出了一种用于改变轨道记录速度以使主机到磁带数据传输速率最大化的方法和设备。 主机系统和网络的可变数据传输速率可以通过不断调整磁带速度来适应磁带机与主机的实际传输速率相适应。 根据磁带驱动器数据缓冲区中存在的数据级别以及驱动器的当前模式是写入模式还是读取模式来调整磁带的速度。 在优选实施例中，当磁带速度在将多个数据磁道对写入磁带的同时加速或减速时，预定数目的虚拟磁道对首先以当前速度写入磁带。 在读磁头位于磁道上方时，在适当增加或减小速度之后的下一个写磁头相位上，以新速度将预定数量的伪磁道对跟随着更多数据磁道对写入磁带。