Contributed article that appeared in January 2007 issue of SNS-Europe
by: Sam Barnett, Vitesse
Serial Attached SCSI (SAS) offers a wealth of benefits to the enterprise server and enclosure customer (high reliability and performance, mixed enterprise/desktop drive support, improved economies of scale) and key to scalability and performance is the expander. This article offers a technical exploration of SAS expander technology and its usage in building tiered-storage systems for midrange and enterprise users of tomorrow.