Yes. This can be done live using OMSA (Storage, Virtual Disks, Reconfigure) or offline in the CTRL-R BIOS utility for the PERC.
Hi all, i have one question for you: I have 1 poweredge R720 with sevens disks. Four are in RAID 5 (OS installation) while three disks are not in RAID. I want to add this 3 disks to the raid 5 without data loss. This operation is possible? Thanks  Cheers  Woz
Addind disk to RAID 5