SCSI Trade Association White Paper
by: Harry Mason, Director, Industry Marketing, LSI Corp.,
       With Contributions by Jay Neer, Advanced Technical Marketing Manager,
Industry Standards, Molex

Serial Attached SCSI (SAS) burst upon the storage scene in 2004 as a serial replacement for the
once ubiquitous parallel SCSI interconnect. While much attention is often given to the capabilities
of the protocol and to the silicon and software required to implement these systems, it is often the
physical interconnections that influence the adoption of I/O in a variety of market segments.
Parallel SCSI, for example, supported everything necessary for clustered server deployments;
however, the large unwieldy nature of the parallel cables and the restricted cabling distances
greatly limited SCSI’s applicability in these markets.

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