Jepp, I installed SME 7 Alpha 22 on a S-ATA RAID Controller and on a Intel SCSI RAID controller.
Since SME 7 is based on CentOS 4, you can expect, that most modern disk controllers are supported (in opposite to SME 6.0x and 6.5, which are based on RedHat 7.3)
But SME 7 is not yet ready for production servers.