1. Yes. 2. Depends: If your existing disk is in a single-disk RAID 0, then it CAN be converted on the fly to a 2-disk RAID 1. If your existing disk is a non-RAID volume, then it CAN'T be converted on the fly without data loss. The SAS 6/iR, PERC S-series, and H200 support both RAID and non-RAID, so chances of a single disk being a RAID 0 is extremely low. The PERC 6/i and H700 do not support non-RAID, so a single disk could only be a RAID 0, so converting to RAID 1 is fine.
Hi all, Quick question - we have a PowerEdge T310 with one drive in it. We want to install a second drive and put them in raid1. Questions: In a perfect scenario, we simply want to install the second drive, set them up as raid 1 and call it a day. Thank you for any tips!
PowerEdge T310 - installing second drive as raid1 with dell server 
administrator software?