Chapter 1: Overview SAS Phys, Ports, and Connectors

LSISAS6160 SAS Switch User Guide

a. Narrow SAS Port with One Phy in Each Port

 

Narrow Port

 

 

 

 

Narrow Port

 

 

 

 

 

TX

 

 

 

 

 

 

Phy

Phy

 

 

 

 

 

RX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

b. Wide SAS Port with Four Phys in Each Port

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wide Port

 

 

 

 

Wide Port

 

 

 

 

 

TX

 

 

 

 

 

 

Phy

Phy

 

 

 

 

 

RX

 

 

 

 

 

 

 

 

 

 

 

 

 

TX

 

 

 

 

 

 

 

 

 

 

 

 

 

Phy

Phy

 

 

 

 

 

RX

 

 

 

 

 

 

 

 

 

 

 

 

 

TX

 

 

 

 

 

 

 

 

 

 

 

 

 

Phy

Phy

 

 

 

 

 

RX

 

 

 

 

 

 

 

 

 

 

 

 

 

TX

 

 

 

 

 

 

 

 

 

 

 

 

 

Phy

Phy

 

 

 

 

 

RX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 5: Narrow and Wide SAS Ports

The SAS6160 switch has 64 phys, numbered 0 through 63. Each of the 16 SAS connectors on the switch case (numbered 0 through 15 in this document) contains four phys, making them wide ports.

During normal operation, the SAS connectors on the switch are cabled to SAS connectors on initiator devices or target devices. This connection creates a wide SAS port through which data is transmitted and received.

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LSI Corporation September 2010

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LSI SAS6160 manual Narrow and Wide SAS Ports