Redundant SAS storage virtualization subsystem and system using the same, and method therefor
    25.
    发明申请
    Redundant SAS storage virtualization subsystem and system using the same, and method therefor 有权
    冗余SAS存储虚拟化子系统和使用相同的系统及其方法

    公开(公告)号:US20060136688A1

    公开(公告)日:2006-06-22

    申请号:US11246268

    申请日:2005-10-11

    Abstract: A redundant external storage virtualization computer system. The redundant storage virtualization computer system includes a host entity for issuing an IO request, a redundant external SAS storage virtualization controller pair coupled to the host entity for performing an IO operation in response to the IO request issued by the host entity, and a plurality of physical storage devices for providing storage to the computer system. Each of the physical storage devices is coupled to the redundant storage virtualization controller pair through a SAS interconnect. The redundant storage virtualization controller pair includes a first and a second SAS storage virtualization controller both coupled to the host entity. In the redundant SAS storage virtualization controller pair, when the second storage virtualization controller is not on line, the first storage virtualization controller will take over the functionality originally performed by the second storage virtualization controller.

    Abstract translation: 冗余外部存储虚拟化计算机系统。 冗余存储虚拟化计算机系统包括用于发出IO请求的主机实体,耦合到所述主机实体的冗余外部SAS存储虚拟化控制器对,用于响应于所述主机实体发出的所述IO请求执行IO操作;以及多个 用于向计算机系统提供存储的物理存储设备。 每个物理存储设备通过SAS互连耦合到冗余存储虚拟化控制器对。 冗余存储虚拟化控制器对包括耦合到主机实体的第一和第二SAS存储虚拟化控制器。 在冗余SAS存储虚拟化控制器对中,当第二个存储虚拟化控制器不在线时,第一个存储虚拟化控制器将接管由第二个存储虚拟化控制器最初执行的功能。

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