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HOST DEVICE WITH MULTI-PATH LAYER CONFIGURED FOR DETECTING TARGET FAILURE STATUS AND UPDATING PATH AVAILABILITY
HOST DEVICE WITH MULTI-PATH LAYER CONFIGURED FOR DETECTING TARGET FAILURE STATUS AND UPDATING PATH AVAILABILITY
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机译:具有多路径图层的主机设备,用于检测目标故障状态和更新路径可用性
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摘要
A host device is configured to communicate over a network with a storage system comprising a plurality of storage devices. The host device comprises a multi-path input-output (MPIO) driver configured to control delivery of input-output (IO) operations from the host device to the storage system over selected ones of a plurality of paths through the network, where the paths are associated with respective initiator-target pairs, and each of a plurality of targets of the initiator-target pairs comprises a corresponding port of the storage system. The MPIO driver is further configured to obtain from the storage system information characterizing failure status of at least a subset of the targets, and to update availability status of the paths based at least in part on the obtained information.
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