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    Physical partitioning of logically continuous bus
    1.
    发明授权
    Physical partitioning of logically continuous bus 失效
    逻辑连续总线的物理划分

    公开(公告)号：US5550990A

    公开(公告)日：1996-08-27

    申请号：US400425

    申请日：1995-03-03

    申请人： Don S. Keener ,  Andrew B. McNeill ,  Thomas H. Newsom ,  Kevin L. Scheiern ,  Richard W. Voorhees ,  Edward I. Wachtel

    发明人： Don S. Keener ,  Andrew B. McNeill ,  Thomas H. Newsom ,  Kevin L. Scheiern ,  Richard W. Voorhees ,  Edward I. Wachtel

    IPC分类号： G06F13/36 ,  G06F13/40

    CPC分类号： G06F13/4027

    摘要： Arrangements for physically partitioning a bus having a well defined architecture as a physical entity, wherein the partitioning is logically transparent to a computer and devices which communicate through the bus and serves to avoid problems potentially arising because of the scope of actions permitted by the architecture. A typical bus architecture to which present arrangements have relevance is that associated with SCSI (Small Computer System Interface) buses. The potential problems allowed to occur architecturally involve: (a) exposures of data security/integrity; (b) excessive signal degradation due to use of signal rates which although allowed by the architecture are inappropriate for a particular bus loading environment also allowed by the architecture; (c) restrictions preventing parallel transfer of data between the computer and multiple storage devices; (d) restrictions unduly limiting the number of devices attachable to one logical bus path (one input-output channel of the computer). The disclosed arrangement partitions the bus into two or more physical entities which to the computer appears as one logical entity.

    摘要翻译： 用于将具有良好定义的体系结构的总线物理划分为物理实体的布置，其中分区在逻辑上对于计算机和通过总线通信的设备是透明的，并且用于避免由于架构允许的动作的范围而潜在地产生的问题。 现有安排具有相关性的典型总线架构是与SCSI（小型计算机系统接口）总线相关联的。 允许在架构上发生的潜在问题涉及：（a）数据安全/完整性的暴露; （b）由于使用信号速率引起的过多的信号衰减，尽管架构允许这种信号速率对于架构也允许的特定总线负载环境是不合适的; （c）防止计算机与多个存储设备之间的数据并行传输的限制; （d）限制不适当地限制可连接到一条逻辑总线路径（计算机的一个输入 - 输出通道）的设备数量。 所公开的布置将总线划分成两个或更多个物理实体，其将计算机显示为一个逻辑实体。

    Small computer system emulator for non-local SCSI devices
    3.
    发明授权
    Small computer system emulator for non-local SCSI devices 失效
    用于非本地SCSI设备的小型计算机系统仿真器

    公开(公告)号：US5499378A

    公开(公告)日：1996-03-12

    申请号：US263168

    申请日：1994-06-21

    申请人： Andrew B. McNeill, Jr. ,  Edward I. Wachtel

    发明人： Andrew B. McNeill, Jr. ,  Edward I. Wachtel

    IPC分类号： G06F13/10 ,  G06F13/38 ,  G06F15/16

    CPC分类号： G06F13/102 ,  G06F13/385

    摘要： A SCSI computer system is provided whereby a host computer gains access to a targeted but non-local peripheral device, which device or devices are individually responsive to either SCSI or non-SCSI commands, by sending SCSI commands via a SCSI bus to a connected SCSI target computer which emulates the targeted peripheral device local to the SCSI target computer, whether the targeted peripheral device is responsive to only SCSI or only non-SCSI commands, to cause the targeted peripheral device to carry out the initial SCSI commands.

    摘要翻译： 提供了一种SCSI计算机系统，由此主机计算机通过经由SCSI总线向连接的SCSI发送SCSI命令来获得对目标但非本地外围设备的访问，哪个设备或设备可以单独响应SCSI或非SCSI命令 目标计算机模拟SCSI目标计算机本地的目标外围设备，目标外围设备是否仅响应SCSI或仅对非SCSI命令作出响应，以使目标外围设备执行初始SCSI命令。