About Multipathing

With multipathing, also called multipath failover, an array or network can detect when an adapter has failed and automatically switch access to an alternate adapter. Multipathing enables high-availability configuration because it ensures that the data path remains active. Multipathing also helps increase performance to multi-controller disk arrays by spreading input/output (I/O) between multiple paths into the array.

Within the array, storage pools use multipathing by default. To complete the data path, data hosts also need the ability to multipath. Therefore, all data hosts need one of the following software products:

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