The PowerEdge R430 server I am currently maintaining is equipped with a PERC H330 Mini. It has two 1.8 TB drives configured in RAID 1. I would like to know if it is possible to add two more physicals disk and configure them as their own RAID 1 array without compromising the existing RAID 1 array. If so, how would I go about this without loss of data? Thanks for the help.