Source: Seagate Until now SAS drives were severely limited in capacity. It was not possible to exceed 300 GB In exchange, it was enabled very fast disks, spinning at 15000 RPM.
Seagate has announced a new range of products with SAS capabilities identical to their SATA products. The Barracuda ES.2 will be offered in 500 and 750 as well as 1 GB TB
On the other hand, no more 15000 RPM. These discs run at only 7200 rpm, the same as their SATA counterparts.
They bring the theoretical advantage of being more efficient, 135% compared to SATA model, and can be guaranteed for 24/7 operation.
They could attract those who have bought the Mac Pro with a RAID card and volumes already using fast SAS. This would be a significant increase in disk storage space.
[translation by jerem