Abstract: In one or more embodiments, one or more systems, one or more methods, and/or one or more processes may receive first data from a first device via a first two-wire interface (TWI) bus; provide the first data to a second device via a second TWI bus; receive a first arbitration request via an out of band arbitration process from a third device; provide first control information via an in band arbitration process to the first device via the first TWI bus; receive second data from an isolation device via a third TWI bus; provide the second data to the second device via the second TWI bus; receive a second arbitration request via the in band arbitration process from the first device via the first TWI bus; and provide second control information via the out of band arbitration process to the third device.

Abstract: A data storage system having a plurality of disk drive sections, each one of the disk drive sections having a plurality of disk drives. Each one of a plurality of secondary SAS expanders is coupled to a corresponding one of the disk drive sections. Each one of the secondary SAS expanders has: (1) a plurality of first ports each one being connected to a corresponding one of the disk drives in the corresponding one of the plurality of disk drive sections coupled thereto; and (2) a second port. A main SAS expander has: (1) a first port; and (2) N second ports, each one of the N second ports of the main expander being connected to the second port of a corresponding one of the plurality of N secondary expanders. A storage processor is coupled to the second port of the main SAS expander.