SCSI and SAS

    •      Parallel Small computer system interface (SCSI)

4  Popular standard for connecting host and peripheral devices

Ø  Commonly used for storage connectivity in servers

4  Higher cost than IDE/ATA, therefore not popular in PC environments

4  Available in wide variety of related technologies and standards

4  Support up to 16 devices on a single bus

4  Ultra-640 version provides data transfer speed up to 640 MB/s

•      Serial Attached SCSI (SAS)

4  Point-to-point serial protocol replacing parallel SCSI

4  Supports data transfer rate up to 6 Gb/s (SAS 2.0)