Configuring RAID
I thought I needed to initialize for PowerEdge 710B. I had to go to system setup and change the boot sequence to select just the Integrated RAID option. I am having an issue with Linux not coming up after the initializing of RAID. Conclusion: When you initialize the RAID, then you have to upload Ubuntu and KVM again. This took awhile. The RAID is already configured on the servers.
RAID levels explained in this link
RAID levels comparison chart link
RAID Real World Performance link
We can configure the RAID using function F10 instead of control R.
F2: I changed the boot sequence to: Hard Drive, Embedded, then SATA -- to change the boot order you just press the minus or plus key on the keyboard to move the order around.
I pressed F2 in BIOS configuration and selected check consistency to verify and correct parity or mirror for fault tolerance on virtual disk. It is recommended by dell.com link (performed every 30 days) The consistency takes a while but is recommended every 30 days, so it is done for the R710b.