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SATA III Mechanical Drive?

post #1 of 14
Thread Starter 


Hey guys, what do y'all think of SATA III Mechanical HDD's (Not talking about SSD's)

Can any of the Mechanical drives hit ~700MBPS? Or is it just a marketing scheme to make you fell like you're getting the latest and greatest interface?
     
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post #2 of 14
Yep just marketing hype.
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post #3 of 14
SATA 6.0Gb/s only matters for mechanical drives if you're running RAID, otherwise it is meaningless.
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post #4 of 14
No need at all, even with RAID each drive is still limited by the speed of the drive and not by bandwidth.
 
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post #5 of 14
raid is at the controller level, so maybe a port multiplier would see an effect, but for the most part sata 3 is just a new instruction set that we don't quite need yet, but I'd rather have it when I don't need it than not have it when I do need it.
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post #6 of 14
Quote:
Originally Posted by mdatmo View Post
No need at all, even with RAID each drive is still limited by the speed of the drive and not by bandwidth.
This. I've got two of the Sata III WD Caviar Blacks in Raid 0 and I only get about 250mb/s.
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post #7 of 14
I can only see a SSD filling that kind of bandwidth and that isn't any time soon I'd think.
post #8 of 14
Thread Starter 
Quote:
Originally Posted by returned4good View Post
I can only see a SSD filling that kind of bandwidth and that isn't any time soon I'd think.
The new intel 510 series SSDs hit 500MBps read. That's getting pretty close. If I'm not mistaken:

6Gbps = 0.75GBps = 768MBps So SATA III has a bandwidth ceiling of 768MBps, realistically it's probably a little less. Again, I'm not an expert, can anyone confirm this?
     
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post #9 of 14
I currently have 2 x 1.5TB 3.0 drives and was looking into RAID 0+1 with buying two more, or buying 4 new 6.0 drives. Now I can save some cash and only acquire 2 more of what I have. Thanks so much for the information.
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post #10 of 14
Had two SATA3 HD in RAID0 on the Marvell controller and found they were faster on the Intel Rapid Storage Controller in SATA2.
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