The Managing Link Speed feature allows you to change the link speed between the controller and an expander or between the controller and a drive that is directly connected to the controller.
You can select a link speed setting. However, if phys in a SAS port have different link speed settings and if a phy is connected to a drive or an expander, the firmware overrides the link speed setting you have selected and instead uses the common maximum link speed among all the phys.
The Manage Link Speed dialog appears, as shown below. The
Manage Link Speed dialog also lets you view the link speed between the controller and an expander or between the controller and a drive that is directly connected to the controller.