My PC(let's call it PC A) installed 3 hard disks (2 sata and 1 ide) I use the 2 sata hard disk in the PC (PC A) make raid and use the onboard SCSI controller. The raid disk was scanned as a physical disk in server 2003 but when i try to clustering using Single Quorum Device Cluster Model but there are a error coming out with the reason "unexpected error". Anyone got any idea about this? Also anyone know how to clustering a server with Single Quorum Device Cluster Model using 2 PC without SCSI disks and Fiber channel?(Sata and IDE is ok)