Adaptec 2268300R User Manual

Chapter 5: Installing the Controller and Disk Drives

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3

When all internal disk drives have been installed and attached to the controller, close your 
computer cabinet, reattach the power cord, then continue with 

Connecting Drives to a System Backplane

In a backplane connection, disk drives and SAS cards are attached to and communicate with 
each other through a system backplane. 

The number of disk drives is limited to the number of slots available on the backplane. Some 
backplanes have embedded SAS expanders and can support up to 128 end devices. (For more 
information about backplane and expander connections, see 

1

Connect one or more internal SAS or SATA disk drives to the backplane. (Refer to your 
system’s documentation for more information.) 

2

Use an internal SAS cable to connect the controller to the backplane, as shown in the 
examples on 

3

When all internal disk drives have been installed and connected, close your computer 
cabinet, reattach the power cord, then continue with 

Disk drives on 
backplane

Controller connected to backplane 
with Internal mini-SAS to mini-SAS 
(SFF-8087 to SFF-8087)

Controller connected to backplane 
with multi-lane cable (SFF-8484)

Disk drives on 
backplane

External SAS cable

connecting to a

drive bay