The target Storwize controller is configured in the replication layer.
Consider whether the target controller is configured correctly. If appropriate, use the management GUI or the chsystem -layer storage command on the target controller to configure the controller in the storage layer. If the target controller is in the correct layer, check that the IP address that you specified points to the correct target. Correct the layer for the target controller or specify the correct IP address and rerun discovery by using the detectiscsistorageportcandidate command.