Raid creation is only supported with the physical risks connected to single controller only. You will not be able to create virtual disk using physical risks across two controller.
Hi.   I just received some new Dell 740xd equipped with H740p.a & H740p.m, in what seems to be a 12/12 split configuration based on "780-BCDW : Unconfigured RAID for Dual Controllers (1-12 + 1-12)".  Dell installed the OS disks on the first slots for each controller (Slot 0 & Slot 12). The intention is to have a RAID 1 dedicated for the OS. I search on the manuals and found nothing about this to be supported, so my question is, Can a RAID array be created with disks located on different controllers? Thanks. Victor Silva
Raid Arrays using two PERC H740P controllers