
Appendix G Introduction to Serial Attached SCSI 105
About SAS Device Communication
SAS devices communicate with each other through links. A link is a physical
connection between two phys.
As shown in the following figure, SAS devices contain ports (see “About SAS Ports”
on page 106), ports contain phys, and each phy contains one transmitter and one
receiver—one transceiver. A phy can belong to one port only.
FIGURE G-1 SAS Device Communication
About Phys
Phys are part of the physical communication connection between SAS devices. Each
phy contains a transceiver that sends data back and forth between SAS devices.
Comentários a estes Manuais