LOCAL RECONNECTION ATTEMPTS FOR SERIAL ATTACHED SMALL COMPUTER SYSTEM INTERFACE EXPANDERS

摘要

Methods and structure for local reconnect attempts via a Serial Attached Small Computer System Interface (SAS) expander. The system includes a SAS expander, which includes a physical link (PHY) that is able to transmit an OPEN Address Frame (OAF) to a coupled SAS device, and to receive an OPEN_REJECT (RETRY) from the coupled device in response to the OAF. The SAS expander also includes a controller that is able to block transmission of the OPEN_REJECT (RETRY) out of the expander in order to preserve a signaling pathway established for the OAF, and to retransmit the OAF to the coupled device via the PHY.