If you want to install Oracle Solaris OS to a redundant array of independent disks (RAID) volume, you must configure the RAID volume before you install the Oracle Solaris OS. For instructions for configuring RAID, refer to Configure Storage Drives for OS Installation in Oracle Server X5-8 Installation Guide.
Configure Storage Drives for OS Installation in Oracle Server X5-8 Installation Guide
Oracle X5 Series Servers Administration Guide at: http://www.oracle.com/goto/x86AdminDiag/docs