What is the different between mirroring, Routing and multipathing? | SAN Interview Questions

Redundancy Functions Relationships Role
Mirroring: Generates 2 ios to 2 storage targets Creates 2 copies of data.
Routing: Determined by switches independent of SCSI Recreates n/w route after a failure.
Multipathing: Two initiator to one target Selects the LUN initiator pair to use.