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METHODS AND STRUCTURE FOR COMMUNICATING BETWEEN A SATA HOST AND A SATA TARGET DEVICE THROUGH A SAS DOMAIN BACKGROUND
METHODS AND STRUCTURE FOR COMMUNICATING BETWEEN A SATA HOST AND A SATA TARGET DEVICE THROUGH A SAS DOMAIN BACKGROUND
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机译:通过SAS域在SATA主机和SATA目标设备之间进行通信的方法和结构
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摘要
Methods and structure for directly coupling SATA hosts (SATA initiators) with SATA target devices through a SAS fabric and an enhanced SAS expander supporting such direct couplings. The enhanced SAS expander comprises SATA/STP connection logic to open a SAS (STP) connection between a directly attached SATA host and a SATA target device in response to receipt of an FIS from the host or target while no connection is presently open. The opened connection is closed after expiration of a predetermined timeout period of inactivity between the connected host and target. Thus, simpler, less costly SATA hosts and SATA target devices may be utilized while gaining the advantage of SAS architecture flexibility in configuration and scalability. SATA hosts may be coupled through the SAS fabric with a larger number of SATA target devices and multiple SATA hosts may be coupled with the SAS fabric.
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