Adaptec 48300 - Manual (Page 26)

Installing the HostRAID Controller and Drives ●
26
Installing the HostRAID Controller to a SAS Expander
You can use a SAS edge expander to connect multiple hard disk drives
to your HostRAID controller or multiple controllers. Commands can
be sent down one link and data returned on another in a separate
connection to increase fault tolerance. Using a SAS expander and dual-
port SAS drives and SATA drives with 2-port adapters, you can design
redundant systems for maximum fault-tolerance.
To install the Adaptec SAS 48300 HostRAID controller to a SAS
expander:
1 Using the appropriate cable, connect the HostRAID controller to a
PHY connector on the expander.
2 Connect a cable from a PHYconnector on the expander to a hard
disk drive.