I have the task of configuring a SQL 2008 R2 server using a DELL R710 with 8x 146gb 2.5" SAS drives. The RAID controller is the H700 with 512mb NV RAM. What is the best RAID configuration for this SQL Server? I want the best overall performance. I was thinking of doing RAID 1 = OS, RAID 1 = TempDB and LDF, RAID 10 = MDF. Would three arrays work on one H700 controller? has anyone ever done this?