SERIAL ATTACHED SMALL COMPUTER SYSTEM INTERFACE EXPANDER AND DEBUGGING METHOD

摘要

A serial attached Small Computer System Interface (SAS) expander comprises a SAS expander chip which comprises a first debug port and a second debug port, a controlling chip which is in communication with the first debug port through a first serial port, in communication with the second debug port through a second serial port, and in communication with a host computer through a third serial port, once the controlling chip controls the third serial port to receive a debug command from the host computer, the controlling chip sends the received debug command to the first debug port or the second debug port according to a reference table.

主权项

1. A serial attached Small Computer System Interface (SAS) expander, comprising:
a SAS expander chip which comprises a first debug port and a second debug port; a controlling chip which is in communication with the first debug port through a first serial port, in communication with the second debug port through a second serial port, and in communication with a host computer through a third serial port; a processor; and a storage device storing a plurality of instructions, which when executed by the processor, causes the processor to: control the third serial port to receive a debug command from the host computer using the controlling chip; and send the received debug command to the first debug port or the second debug port using the controlling chip.