Adaptec 48300 - Manual (Page 43)

Managing Your Storage Space ●
43
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 HostRAID 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 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.