WOW...SATA RAID 0
- Thread starter Bozo
- Start date
Well.......! I've beating people over the head around here for more than a year now with the fact that Native SATA will be (is) a better all-around performer than "conventional" Parallel ATA.
Still, there has been many doubters, as they continued to focus on the wrong points -- mainly the disparity between media read/write rates and channel bandwidth. Native SATA is more efficient at the protocol level and at the wire level than Parallel ATA. In the end, what you'll have with a mature SATA is smooth, balanced, "SCSI-like" performance.
As for some of the early SATA performance hiccups we've seen, these are the likely culprits:
1.) Non-native SATA implementations in the form of performance-robbing serial-to-parallel bridge circuits (which also drive up hard drive cost significantly), and/or...
2.) Non-optimal drive firmware -- probably patched up Parallel ATA firmware -- that is not optimised for the operating characteristics of the SATA 150 Mb/s channel.
It also needs to be hammered home that going to Native SATA will actually reduce overall storage costs. Even though a SATA data cable costs a few coins more than a blue-ended ATA-100 cable (now), the Native SATA drive controller circuitry is less complex than Parallel ATA, making it less expensive to manufacture once the assembly lines ramp up production volumes of SATA hard drive controller printed circuit boards.
I am unimpressed by the methodology. In fact the quote "we use ATTO's disk-tools to test the drive for its full gamut of performance across the entire surface its many platters..." is laughable considering that the largest test file written by Atto is only 32 MB.Bozo said:http://www.envynews.com/review.php?ID=417
Bozo
Although I would never disagree with Hendershot's views on the advantages that SATA will provide, sustained transfer rates surely are not indicative of them at this point. Anyone can achieve equal or better transfer rates with two parallel Diamondmax Plus 9 drives using software RAID 0. (Try it if you don't believe me.)