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    • 10. 发明授权
    • System and method to failover storage area network targets from one interface to another
    • 将存储区域网络目标从一个接口故障转移到另一个接口的系统和方法
    • US07127633B1
    • 2006-10-24
    • US10184058
    • 2002-06-28
    • Mark David OlsonMichael Henry Pittelkow
    • Mark David OlsonMichael Henry Pittelkow
    • G06F11/00
    • G06F11/2092
    • A fiber channel storage area network (SAN) provides virtualized storage space for a number of servers to a number of virtual disks implemented on various virtual redundant array of inexpensive disks (RAID) devices striped across a plurality of physical disk drives. The SAN includes plural controllers and communication paths to allow for fail-safe and fail-over operation. The plural controllers can be loosely-coupled to provide n-way redundancy and have more than one independent channel for communicating with one another. In the event of a failure involving a controller or controller interface, the virtual disks that are accessed via the affected interfaces are re-mapped to another interface in order to continue to provide high data availability. In particular, those targets, or virtual disks, which are owned by a failed device (e.g., interface or controller) are identified and their ownership information within the SAN configuration tables is revised to reflect one or more alternative devices which act as back-up devices.
    • 光纤通道存储区域网络(SAN)向许多虚拟磁盘提供多个服务器的虚拟存储空间,这些虚拟磁盘在多个物理磁盘驱动器上划分的廉价磁盘(RAID)设备的各种虚拟冗余阵列上实现。 SAN包括多个控制器和通信路径,以允许故障安全和故障切换操作。 多个控制器可以松耦合以提供n路冗余并且具有多于一个用于彼此通信的独立信道。 在涉及控制器或控制器接口的故障中,通过受影响的接口访问的虚拟磁盘将重新映射到另一个接口,以便继续提供高数据可用性。 特别地,识别由故障设备(例如,接口或控制器)拥有的那些目标或虚拟磁盘,并且修改其在SAN配置表内的所有权信息以反映用作备份的一个或多个备选设备 设备。