Storage, peripherals, and interconnect protocols, Fibre channel, Sata – Teledyne LeCroy Serial Data Debug Solutions User Manual
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Serial Data Debug Solutions
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Storage, Peripherals, and Interconnect Protocols
Storage, Peripherals, and Interconnect Protocols Overview
SAS
computer bus standard was initially designed to transfer data off and onto hard and tape drives. SAS
also has backward compatibility from second-generation SATA drives; meaning SATA 3 Gb/s drives may be
connected to SAS backplanes, but not vice versa.
Standards are maintained by T10 Technical Committee of the InterNational Committee for Information
Technology Standards (incits). Specification information can be found a
.5, 3 and 6
Number of Lines
Data rate
Synchronous or Asynchronous
2 (differential)
1.5 Gb/s
3 Gb/s
6 Gb/s
Asynchronous
Fibre Channel
Starting out as a solution to simplify connections and increase transfer distances,
standard designed to connect SCSI disk storage (among other connected devices) and increasing transfer speeds.
Standards vary based on protocols/variants and are maintained by Joint Technical Committee 1 of the
InterNational Committee for Information Technology Standards (incits). Specification information can be found
Number of Lines
Data rate
Synchronous or Asynchronous
2 (differential)
1.0625 Gb/s
2.125 Gb/s
4.25 Gb/s
8.5 Gb/s
14.025 Gb/s
Asynchronous
SATA
Typically used to connect host bus adapters to hard drives and optical drives, Serial Advanced Technology
Attachment, or
replaced the AT Attachment, or ATA protocol. SATA made great improvements on its
predecessors by reducing the number of connecting wires, providing more efficient and faster data transfers,
and allowing for hot swap connections.
The standard is maintained by the Serial ATA International Organization. Additional information, including the
specification, can be found
Number of Lines
Data rate
Synchronous or Asynchronous
1 (differential)
Up to 6 Gb/s
Synchronous