Currently I have a system set up (with GigaRAID) as a Raid 0 (striping). I want to add two more drives to make it a RAID 0+1...but I don't want to lose my data on the original two drives. I just want to plug in the two new ones and tell it to add those in and mirror to them. I've looked in the RAID BIOS configuration and I've launched the Windows software tool. Both of them seem unclear as to whether or not I'll lose my data.
I'm in a hurry, so I'm assigning a high point value!