Harry Mason, Director of Industry Marketing, LSI, and President of STA commented, "This new generation of SAS provides investment protection by preserving existing SAS and Serial ATA (SATA) installations, while propelling the market ahead with important new capabilities. 6Gb/s SAS extends SAS architecture deeper into enterprise storage by doubling transfer rates, improving the scalability of the topology and increasing overall Reliability, Availability and Serviceability (RAS) attributes. These capabilities support the challenges of clustering, scale-out and storage tiering, including the growing interest in solid state drives (SSDs)."
The 6Gb/s SAS generation was designed to maintain backward compatibility with 3Gb/s SAS, as well as with 1.5Gb/s and 3Gb/s SATA, allowing these technologies to operate in the same system. As a result, SAS-based systems can support both SAS and SATA HDDs. In addition, the technology features Spread Spectrum Clocking (SSC) for reduced electromagnetic interference.
Additional performance enhancements to 6Gb/s SAS which contribute to internal and external storage system configurations include wide ports, dual-port drives and full-duplex data transmission. Cables have lengthened to ten meters as opposed to six meters used for 3Gb/s SAS. In addition, PCI Express, Gen. 2, has been associated with 6Gb/s SAS system configurations as the two technologies are compatible and complementary in building large, powerful storage systems.
The first plugfest to be devoted entirely to 6Gb/s SAS will be held the week of Nov. 10 at the University of New Hampshire IOLab facility.