Patent ID: 8868793

Claim:
A serial attached small computer system interface (SAS) expander system comprising a master SAS expander device, a slave SAS expander device and an EEPROM, the master SAS expander device comprising: at least one microprocessor; and a storage system storing a computer-readable program including instructions that, which when executed by the at least one microprocessor, causes the at least one microprocessor to: define an address parameter for specifying a master SAS address for the master SAS expander device and specifying a slave SAS address for the slave SAS expander device; establish a communication connection between the master SAS expander device and the slave SAS expander device through a plurality of communication channels; determine whether an original SAS address of the master SAS expander device is identical to either the master SAS address or the slave SAS address; obtain the original SAS address from the EEPROM when the original SAS address is identical to either the master SAS address or the slave SAS address; add the address parameter to the original SAS address to generate a first SAS address, and allocate the first SAS address to the master SAS expander device; and add the address parameter to the first SAS address to generate a second SAS address, and allocate the second SAS address to the slave SAS expander device.