Dear Client,
I have used iDRAC7 on PowerEdge Dell Series Servers and have installed CentOS 5.x and 6.x. Based on your Disk layout and hardware we can standup a hardware or a software Raid array.
For installation, we can use a centOS iso file and configure it as a boot device using Virtual Media.
Kindly let me know your thoughts
Regards
FreelanceTX