Each device has a unique device number which are configured with jumpers or DIP switches. Each SCSI controller must be terminated on each end. Connection of SCSI SCSI is connected in a daisy chain, which means that the devices are connected in a series. One of the fundamental aspects of RAID is disk striping which means that files are divided among several hard disks. This allows the processor to read or write faster than a single disk.
RAID also features disk mirroring, which means it duplicates information on several disks.