Method for optimizing wide port power management in a SAS topology

A SAS expander or initiator places PHYs in a wide port into a persistent reduced power state by signaling to the connected SAS device that the SAS expander or initiator intends to route data traffic through other PHYs in the wide port. The SAS expander or initiator and connected SAS device agree to...

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Bibliographische Detailangaben
Hauptverfasser:	GOLDEN DAVID J, MOCKLIN KEVIN A, BESMER BRAD, DOMINGUEZ SCOTT, DAY BRIAN A
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION ANDCOMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION ANDCOMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWNENERGY USE COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	A SAS expander or initiator places PHYs in a wide port into a persistent reduced power state by signaling to the connected SAS device that the SAS expander or initiator intends to route data traffic through other PHYs in the wide port. The SAS expander or initiator and connected SAS device agree to disuse certain PHYs so that the PHYs enter a reduced power state according to SAS standards.