Author: Alvin Ooi, Marketing Manager,
Since the market emergence of Serial Attached SCSI two years ago, many high-end storage solution providers and OEMs have recognized the advantages of SAS over its parallel predecessor. Vertical markets that have since adopted SAS technology are the entertainment industry, medical imaging, financial institutions and research and government institutions, which typically need performance and/or capacity. SAS can offer good value, performance, and scalability.
In general, everyone recognizes the following advantages SAS offers:
- Superior aggregated performance over 4-lane wide ports -- providing throughput of up to 12Gb/s SAS
- Dual-ported design with fail-over capabilities
- Support for both SAS and Serial ATA (SATA) HDD in a single enclosure to eliminate redundant qualification and certification efforts, as well as the ability to achieve cost-effective storage
- Available edge and fan-out expander technologies for easier expansion and unmatched scalability
- Longer interconnect distance allowed compared to SATA for low-cost expansion enclosure solutions
Although overall market share is still relatively small compared to SATA, parallel SCSI and even Fiber-Channel, the majority of the next generation solutions currently being designed by OEMs are based on SAS technology. But demand for SAS is high and increasing.