SSA supports hot swapping and is designed to allow "easy migration" from the SCSI 2 command set. SSA allows direct communication between peripheral devices in addition to communication between devices and the host (Spatial Reuse). It also offers simultaneous communication between different devices over the same data cabling (arbitrationless architecture).
Industry support has been sporadic and the few experimental devices built using the capability have encountered both cost performance and technical problems. SSA may eventually be replaced by Fibre Channel Loop (FCL) technology.
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