In this model, for example, you can define multiple paths to a given resource, with the available path being used and the redundant path used upon failure.
在这个模型中，您可以为一个给定资源定义多条路径，正常情况下使用可用路径，故障发生时使用冗余路径。
2
Upon failure of the primary node the redundant node takes over.
在主节点发生故障时，冗余节点可以接管。
3
The combination of GPFS and the DS4500 provides for a redundant storage subsystem in case of disk failure.