Small Computer System Interface (SCSI) is a fast and
strong interface technology used in computer components such as hard drives, optical drives, scanners and tape drives. It is a
faster but more expensive interface technology than IDE (Integrated Drive Electronics).
IDE technology is built into motherboards while SCSI card must have to be added
into an internal PCI (Peripheral Component Interconnect) slot by purchasing a SCSI
controller for getting the advantage of SCSI technology.
The advantage of SCSI over IDE is that it is faster and stronger technology than IDE, and can be connect 15 or more devices in a daisy chain. The controller recognizes each device by its SCSI ID that makes it more flexible.
SCSI devices are usually used in servers that's why it is usually made to higher standards and carry longer warranties than IDE drives of comparable capacity. SCSI can be a great choice for a server when it is associated with a RAID as an additional drive.
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