Use Oracle System Assistant to configure RAID on the server.
See the following procedures:
Configure RAID With a Sun Storage 6 Gb SAS PCIe Internal HBA
Configure RAID With a Sun Storage 6 Gb SAS PCIe RAID Internal HBA
If your server does not have Oracle System Assistant, you can configure RAID using the BIOS RAID configuration. See Configuring RAID Using the BIOS RAID Configuration Utilities.