SCSI problem on Tyan Thunder 2882

Hi NG, I have a problem with a 4 disk raid0 on a dual opteron tyan board. When copying large files, the kernel reports 'scsi0 transmission error detected' Where do I start sorting out the problems? Software or hardware problem? The board is a Tyan Thunder K8S Pro S2882, the drives are Fujitsu MAS3367NP. OS is Suse Linux 9.0 64bit The scsi controller is an on board aic7902w dual channel u320 scsi controller. In the bios, I enabled the termination. All 4 drives are connected to the scsi-a connector, there is a termination board at the last drive and the jumper on the drive is set to provide terminal power I placed the complete error messages at www.lucienet.de/scsiprob.txt Any help will be appreciated Arno