I have been seeing if I could install eCS 2.1 on an IBM System 3650 that I have an opportunity to test. The drives are SAS (serial attached scsi) that I have not found a driver for. I tried the ipsraid, ahci, danis506, and various Adaptec scsi drivers (seems to be Adaptec based). It seems that there are no drivers to handle this but thought I would check to see if anyone knew of something that might work.