Address offset feature for a hard disk drive
    1.
    发明授权
    Address offset feature for a hard disk drive 失效
    硬盘驱动器的地址偏移功能

    公开(公告)号:US06415383B1

    公开(公告)日:2002-07-02

    申请号:US09414301

    申请日:1999-10-06

    IPC分类号: G06F906

    CPC分类号: G06F9/441

    摘要: A method of changing the operating system in a computer system by using an address offset mode (AOM) feature for the address space of a hard disk drive connected to the computer system. Initialization of the computer loads the first operating system (OS) from a user area in the disk drive address space. An enable AOM command offsets the disk drive address space and reinitializes the computer to load a second OS from a reserve space in the disk drive address space. A command setting the maximum size of the address space of the hard disk drive provides a wrap around feature allowing the entire address space of the disk drive to be addressable for diagnostics or updating purposes. The computer is returned to operation with the first OS by a disable AOM command, or alternatively, by a power on reset, a software reset or a hardware reset. The method of changing operating systems is coded in the hard disk drive and does not require additions or modifications to the memory or the BIOS ROM of the computer system.

    摘要翻译: 通过使用连接到计算机系统的硬盘驱动器的地址空间的地址偏移模式(AOM)功能来改变计算机系统中的操作系统的方法。 计算机的初始化从磁盘驱动器地址空间的用户区域加载第一个操作系统(OS)。 启用AOM命令会偏移磁盘驱动器地址空间,并重新初始化计算机以从磁盘驱动器地址空间中的预留空间加载第二个OS。 设置硬盘驱动器的地址空间的最大大小的命令提供了一个环绕功能,允许磁盘驱动器的整个地址空间可寻址以进行诊断或更新。 计算机通过禁用AOM命令返回到第一个操作系统的操作,或者通过上电复位,软件复位或硬件复位返回到操作。 更改操作系统的方法在硬盘驱动器中进行编码,不需要对计算机系统的存储器或BIOS ROM进行添加或修改。