SAS, SCSI, SATA?

[The_KiD]

I have been asked to look in to the specs of a server and have been told that that SAS is the new standard instead of SCSI.

Is this right? what is SAS?

 

[rpstewart]

SAS = Serially Attached SCSI

Basically it's to SCSI what SATA is to IDE/ATAPI - the same basic protocols over a serial cable rather than a parallel one. SAS has one very distinct advantage over SCSI in that you can connect SATA drives to a SAS controller (but not vice versa). This gives you the ability to use very quick 15krpm drives for a boot disk/array and cheaper larger SATA drives for storage all on the same controller / backplane.

 

[The_KiD]

Thanks RP, not just a pretty pictures man then