I have a Dell Server with 6 scsi disks. Somehow after adding the six disk it reconfigured the array from raid 5 to 0. I took out the last disk amd tried to boot the server. IT now says the disk six has failed. I put it back in and it still says it has failed and will not let me boot. The disk is not bad since I did just removed it from the slot How can I get it running again?