I have a dell poweredge 2300 server with 2 seagate cheetah scsi drives (both are 8486mb capacity). The drive in ch 0 suddenly failed to respond, and force me to reboot the system. During booting, I have seen that drive in ch 0 has a "degraded" comment, then i went to scsi disk utilities and tried to rebuild the drive. I thought rebuilding was successful but when I went to the drive information, the drive capacity becomes "---" or which I may think as '0'. I also tried to do 'rebuild' again, but it says 'not valid operation'. Could anyone help?