RAID migration from 1+0 to 6

I have a DL380p Gen8, which uses a P420i controller.
Currently, all 12 drive bays are filled with 4TB drives.
I have a single array using all drives and it has 2 logical volumes (RAID 1+0).  The first is 300GB for OS.  The second is the remaining space (~23TB).
My question is, can I do an online RAID migration of one or both logical volumes to RAID 6?
Thanks.