Contributed article that appeared in January 2007 issue of Storage Solutions Resource Catalog
by: Mike Micheletti, LeCroy
Serial Attached SCSI (SAS) is a storage interface developed to meet the needs of enterprise-class storage applications. Central to the SAS value proposition is the ability to scale storage systems beyond the limits of today’s parallel SCSI, using a switching technology called Expanders. Designed to provide fan-out architecture for SAS, expanders allow SAS initiators to connect up to 16,000 physical devices in a single domain.