12.10.4 Changing the Backplane Discovery Protocol Settings
- AutoDetect (With SAS/SATA fallback): The controller firmware attempts to automatically detect the discovery protocol of the backplane attached to the port.
- SGPIO: The controller firmware uses Serial General Purpose Input/Output (SGPIO) to communicate with the backplane attached to the port
- UBM: The controller firmware uses Unified Backplane Management (UBM) protocol to communicate with the backplane attached to the port.
VPP: The controller firmware uses the Virtual Pin Port (VPP) protocol to communicate with the backplane attached to the port.
Direct-Attached Cable: The controller firmware uses the direct-attached cable protocol to communicate with direct attached drives. Provide the number of targets (drives) that matches the direct attached cable's capabilities. If the number of targets is not configured correctly, target drives may not get discovered.
If the port discovery protocol is not configured correctly, some features of the backplane may not function as expected. A reboot is required for the new port discovery protocol to take effect.
In maxView, the Backplane Discovery Protocol related properties are displayed both at connector and controller level.
To change the backplane discovery mode protocol settings:
- In the Enterprise View, select a controller.
- On the ribbon, in the Controller group, click Set Properties.When the Set Properties window opens, click the Connector tab.
- From the drop-down list, change the backplane setting of each of the connector to Independent, SGPIO, VPP, UBM, or Direct-Attached Cable. You can also change the backplane setting of all the connectors of that controller by selecting the mode from "All connectors" drop-down list. The Connector tab displays only those connectors that supports the backplane discovery mode.
- Click OK.
- Reboot the server.