Diskarray system for suppressing disk fault
    2.
    发明授权
    Diskarray system for suppressing disk fault 失效
    用于抑制磁盘故障的Diskarray系统

    公开(公告)号:US07181570B2

    公开(公告)日:2007-02-20

    申请号:US10924813

    申请日:2004-08-25

    IPC分类号: G06F12/16

    摘要: A diskarray system has a diskarray controller and a plurality of disk devices. Each of the disk devices has a media, a head, and a head position controller. The diskarray controller performs online data check operation, and stops the online data check operation over the disk device at first predetermined timing. After stopping the online data check operation, the diskarray controller issues an unload enable command to the disk device so as to move the head to a position different from positions at which the head reads or writes data from or to the media. The head position controller of the disk device moves the position of the head on the basis of the received unload enable command.

    摘要翻译: 磁盘阵列系统具有磁盘阵列控制器和多个盘装置。 每个磁盘设备具有介质,磁头和磁头位置控制器。 磁盘阵列控制器执行在线数据检查操作,并且在第一预定定时停止通过磁盘设备的在线数据检查操作。 在停止在线数据检查操作之后,磁盘阵列控制器向磁盘设备发出卸载使能命令,以便将磁头移动到与磁头从媒体读取或写入数据的位置不同的位置。 磁盘装置的磁头位置控制器基于接收的卸载使能命令移动磁头的位置。

    Disk array system
    3.
    发明授权
    Disk array system 失效
    磁盘阵列系统

    公开(公告)号:US5530830A

    公开(公告)日:1996-06-25

    申请号:US163022

    申请日:1993-12-06

    IPC分类号: G06F3/06 G06F12/00

    CPC分类号: G06F3/0601 G06F2003/0692

    摘要: A disk array system having a plurality of disk units includes an upper-level data transfer controller for controlling transfer of data to and from an upper-level apparatus, a data buffer for temporarily storing therein data from the upper-level apparatus, a drive data transfer controller for controlling the data transfer between the buffer and the units, and a main microprocessor for controlling the the transfer controllers. When transferring data, the microprocessor indicates an address to be used in the buffer and a distribution mode of data to the data transfer controllers so that the data transfer is conducted thereafter without intervention of the microprocessor. During the transfer, the microprocessor can generate information for a subsequent data transfer to indicate the information to the transfer controllers. After a data transfer is terminated, the pertinent transfer controller can immediately execute the next data transfer, which increases the utilization efficiency of the data bus.

    摘要翻译: 具有多个盘单元的盘阵系统包括用于控制向上级装置传送数据和从上级装置传送数据的上级数据传送控制器,用于临时存储来自上级装置的数据的数据缓冲器,驱动数据 用于控制缓冲器和单元之间的数据传输的传送控制器和用于控制传送控制器的主微处理器。 当传送数据时,微处理器指示要在缓冲器中使用的地址和向数据传输控制器发送数据的分发模式,以便此后进行数据传输,而不需要微处理器的干预。 在传送过程中,微处理器可以生成用于后续数据传输的信息,以将信息指示给传送控制器。 数据传输终止后,相关的传输控制器可以立即执行下一次数据传输,从而提高数据总线的利用效率。