Adaptec ASR-6405E User's Guide download pdf (Page 47)

Chapter 5: Installing the Controller and Disk Drives ● 47

2 Use internal SAS or mini-SAS cables to attach the disk drives to the controller, as shown in

the following example.

Note:

SAS fan-out cables are also available with an additional sideband (SFF-8448) cable

that caries SGPIO signals for enclosure management. This additional sideband cable is not

used with direct-attached disk drives.

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 External

Devices on page 50.

Connecting 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 page 84.)

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 page 48.

SAS/SATA

disk drives or

SSDs

Single-port connector

internal x4 mini-SAS connectors

mini-SAS to SATA fan-out cable

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Adaptec ASR-6405E User's Guide Page 47