Methods and structure for serial attached scsi expanders that self-configure routing attributes of their ports

Methods and structure for serial attached scsi expanders that self-configure routing attributes of their ports

Methods and structure are provided for Serial Attached SCSI (SAS) expanders that program their own routing attributes. The structure includes a SAS expander (120) comprising multiple physical links with associated transceivers (PHYs), wherein the PHYs are configured into ports (122) at the expander,...

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Hauptverfasser: MADHUSUDANA, NARESH, NAGENDRA, RAGHAVENDRA CHANNAGIRI
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator MADHUSUDANA, NARESH
NAGENDRA, RAGHAVENDRA CHANNAGIRI
description Methods and structure are provided for Serial Attached SCSI (SAS) expanders that program their own routing attributes. The structure includes a SAS expander (120) comprising multiple physical links with associated transceivers (PHYs), wherein the PHYs are configured into ports (122) at the expander, and a memory (128) that defines routing attributes for each of the ports. The SAS expander also comprises a control unit (126) that is operable to detect a discovery Serial Management Protocol (SMP) request received at a port of the expander, and that is further operable to set the routing attribute for the port to subtractive routing responsive to detecting the SMP request.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Methods and structure for serial attached scsi expanders that self-configure routing attributes of their ports
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