Patent ID: 8788736
Filing Date: 2014-07-22
Classification: G06F

Abstract:
1. An enhanced Serial Attached SCSI (SAS) expander comprising: a first physical link (PHY) for coupling the SAS expander with a Serial Advanced Technology Attachment (SATA) host, wherein the SATA host exchanges information with the expander using SATA protocol, wherein the PHY receives a first Frame Information Structure (FIS) from the SATA host, the FIS being directed to a SATA target device; and a SATA Tunneling Protocol (STP) connection circuit operable to open and close an STP connection between the SATA host and the SATA target device through the expander in response to receipt of the first FIS, wherein SATA protocol logic of the STP connection circuit holds transfer of the FIS via SATA HOLD primitives until the STP connection circuit establishes STP acceptance with the SATA target device.