efranchi
07-09-2008, 08:00 PM
http://www.digit-life.com/articles2/sas-and-sata/
"In one of its most significant advances, the SAS interface will also be compatible with lower-cost-per-gigabyte SATA drives, giving system builders the flexibility to integrate either SAS or SATA devices while slashing the costs associated with supporting two separate interfaces. As the next generation of SCSI, SAS bridges the parallel technology gap in performance, scalability and affordability.
Multiple layers of compatibility
Physical layers
The SAS connector is a universal interconnection that is form-factor compatible with SATA. It allows SAS or SATA drives to plug directly into a SAS environment for mission-critical applications with high-availability and high-performance requirements or lower-cost-per-gigabyte applications such as near-box storage.
SATA connector signals are a subset of SAS signals that enable the compatibility of SATA devices and SAS controllers. SAS drives will not operate on a SATA controller and are keyed to prevent any chance of plugging them in incorrectly."
Finally the questions:
1) can I really put 1 Memoright in a "sas 5ir u320 sas controller" ?
2) can I use an hybrid attached drives with first drive the SSD Memoright and second attached drive a 73 GB hdd 15'000rpm?
Thank you
"In one of its most significant advances, the SAS interface will also be compatible with lower-cost-per-gigabyte SATA drives, giving system builders the flexibility to integrate either SAS or SATA devices while slashing the costs associated with supporting two separate interfaces. As the next generation of SCSI, SAS bridges the parallel technology gap in performance, scalability and affordability.
Multiple layers of compatibility
Physical layers
The SAS connector is a universal interconnection that is form-factor compatible with SATA. It allows SAS or SATA drives to plug directly into a SAS environment for mission-critical applications with high-availability and high-performance requirements or lower-cost-per-gigabyte applications such as near-box storage.
SATA connector signals are a subset of SAS signals that enable the compatibility of SATA devices and SAS controllers. SAS drives will not operate on a SATA controller and are keyed to prevent any chance of plugging them in incorrectly."
Finally the questions:
1) can I really put 1 Memoright in a "sas 5ir u320 sas controller" ?
2) can I use an hybrid attached drives with first drive the SSD Memoright and second attached drive a 73 GB hdd 15'000rpm?
Thank you