Over the past several years, companies have enjoyed a wide selection of technologies within the enterprise disk array market. Serial ATA (SATA), Fibre Channel (FC), and even parallel SCSI are viable options. More recently, Serial Attached SCSI (SAS) has entered the mainstream enterprise-class storage market, and its share is growing rapidly. Gartner Dataquest expects SAS to grow from its current 8 percent market share in multi-user drive shipments to 16 percent in 2007. By 2009, analysts expect SAS to make up 45 percent of that market. (March 2007)