Dell PowerEdge t710 raid configuration for newbie

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http://serverfault.com – My company bought a Dell PowerEdge t710 server with: 48 GB ram 4x4 GB ethernet ports. RAID 5 for PERC H700 4 x 1TB, SATA, 3.5-in, 7.2K RPM Hard Drive (Hot Plug) My job is to configure Hyper-V system infrastructure on this server. The requirements are: Domain controller File server Microsoft Exchange server Intranet server - SharePoint Development server (with SVN and SQL server 2008) I will install Hyper-v Server 2008 R2 on bare metal. My question is: What kind of raid configuration should I have, in order to ensure the file server (virtual Windows Server2008) is at max performan (HowTos)