Adaptec 1045 User Guide - Page 21

Connecting to a Backplane, backplane's documentation for more information.

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Chapter 4: Installing the SATA/SAS Controller and Disk Drives l 21 2 Use internal SAS cables to connect the disk drives to the SATA/SAS controller. Note: SAS fan-out cables are also available with an additional sideband (SFF-8448) cable that carries SGPIO signals for enclosure management. This additional sideband cable is not used with direct-attached disk drives. 3 When you have installed and connected all disk drives to the SATA/SAS controller, close your computer cabinet, and reconnect the power cord. Connecting to a Backplane In a backplane connection, disk drives and SATA/SAS controllers are connected to and communicate with each other through a backplane. An alternate method of backplane connection, the SATA/SAS controller can also be connected with backplane along with expanders. 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. 1 Install one or more internal SAS or SATA disk drives in to the backplane. Refer to your backplane's documentation for more information. 2 Use an internal or external SAS cable to connect the SATA/SAS controller to the backplane. Disk drives on backplane Controller connected to backplane 3 When all internal disk drives have been installed and connected, close your computer cabinet, reconnect the power cord.

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Chapter 4: Installing the SATA/SAS Controller and Disk Drives
l 21
2
Use internal SAS cables to connect the disk drives to the SATA/SAS controller.
Note:
SAS fan-out cables are also available with an additional sideband (SFF-8448) cable that
carries SGPIO signals for enclosure management. This additional sideband cable is not used with
direct-attached disk drives.
3
When you have installed and connected all disk drives to the SATA/SAS controller, close
your computer cabinet, and reconnect the power cord.
Connecting to a Backplane
In a backplane connection, disk drives and SATA/SAS controllers are connected to and
communicate with each other through a backplane. An alternate method of backplane
connection, the SATA/SAS controller can also be connected with backplane along with
expanders.
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.
1
Install one or more internal SAS or SATA disk drives in to the backplane. Refer to your
backplane’s documentation for more information.
2
Use an internal or external SAS cable to connect the SATA/SAS controller to the backplane.
3
When all internal disk drives have been installed and connected, close your computer
cabinet, reconnect the power cord.
Disk drives
on backplane
Controller
connected to
backplane