Sorry ... apparently I left this window open longer than I thought without refreshing :) The H200 DOES support non-RAID, so it should show up in the OS ... you leave it UNCONFIGURED in the RAID BIOS, so you can skip that.  Previous controllers of this line did not allow you to create a single-disk RAID 0, so I'm unsure if that would even be an option on the H200.
We have a T110 running Centos 5.9 with H200 PERC and 2x1TB drives in a RAID configuration. The machine is being retired from server critical role and I would like to "switch" to a non-RAID configuration without losing existing data on disk 0. Possible? Thanks
T110 converting RAID to non-RAID