When should I use SATA 6gb/s?

Posted by Gili on Server Fault See other posts from Server Fault or by Gili
Published on 2012-08-28T15:37:56Z Indexed on 2012/08/28 15:40 UTC
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hard-drive

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sata

I purchased a Baraccuda hard-drive (model ST3000DM001) that supports a maximum read transfer rate of 210 MB/s and SATA 1.5/3/6 Gb/s. My motherboard has a limited number of 6 Gb/s ports so I'd like to reserve them for when it's really necessary.

When does a hard-drive benefit from a SATA 6 Gb/s port? Doesn't it require a transfer speed of at least 375 MB/s to surpass the limit of SATA 3 Gb/s? Are there any other benefits of SATA 6 Gb/s vs 3 Gb/s ports?

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