I have a proliant ml350p gen8 HP SERVER with centos 6.2 and two hard disk with 1 TB for both.
I have several GB of files and software about 100) with their configurations but I want to install RAID 1 (mirror).
Then:
1) I know that RAID configuration must be done in the starting phase because it is a delicate operation. But, now? Is it possibile to loose all the OS?
2) I don't find a clear tutorial for this RAID configuration. What about?
3) If (1) is true, how can I make a cloned OS backup? Is it possible?
Thank you so much