I noticed on Anand's fusion drive reviewhttp://www.anandtech.com/show/6679/a-month-with-apples-fusion-drive/2 that his negotiated link speed is 3G vs 6G for Sata III. Can anyone confirm their link speed on their fusion drive?
I noticed on Anand's fusion drive reviewhttp://www.anandtech.com/show/6679/a-month-with-apples-fusion-drive/2 that his negotiated link speed is 3G vs 6G for Sata III. Can anyone confirm their link speed on their fusion drive?
Ok, this is disturbing. If Apple is sticking a Sata 2 HDD I'm there, I'm gonna return mine and go all SSD. I didn't buy this new imac to go back in tech time.
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Hope we can find someone with a stock 2012 imac
The problem is that any hard drive is so slow that the benefit of SATA-III is neglectable.Ok, this is disturbing. If Apple is sticking a Sata 2 HDD I'm there, I'm gonna return mine and go all SSD. I didn't buy this new imac to go back in tech time.
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Hope we can find someone with a stock 2012 imac
The problem is that any hard drive is so slow that the benefit of SATA-III is neglectable.
http://m.hardocp.com/article/2010/02/20/sata_6gbs_on_your_new_motherboard/2 said:(...)we saw basically no difference from the same single drive being plugged into a SATA 6Gb/s or SATA 3Gb/s port. All of this is obviously due to the hard drive not being able to actually take advantage of the 6Gb/s bus. We will see SATA 6Gb/s start to shine with SATA 6Gb/s SSD drives(...)
Read this.
And that's what happens with your SSD, which is than combined in software into a single drive with the hard drive.
This is why the 2nd drive has Negotiated Link Speed set to 3Gb, as HDD's can't make use of 6Gb, so you really don't need to worry about it. If it was a second SSD, then it would show NLSpeed of 6Gb, AFAIUI.
This is why the 2nd drive has Negotiated Link Speed set to 3Gb, as HDD's can't make use of 6Gb, so you really don't need to worry about it. If it was a second SSD, then it would show NLSpeed of 6Gb, AFAIUI.
This is a bit of a zombie thread, but disks will show a 6Gb link if they support that link speed. The homebrew fusion drive in my 2012 mini shows both the SSD and HD at 6Gb.
are you sure that model is SATA-III? If it was actually a SATA-III 6Gbps model its negotiated link speed would be 6Gbps.
When I installed an SSD and new HDD in 2012 Mac Mini it showed both as 6Gbps because they were both SATA-3 drives. Same when I upgraded the drive in my iMac from a SATA-II to SATA-III drive the negotiated link speed matched the new drive.
RPM and link speed are not directly related. In any case, a 5400 or even 7200 rpm spinning disk won't come close to saturating even a 3Gb link. My 2012 Mini's 5400 RPM drive was 6Gb/sec for what it's worth, but actual throughput was around 115 MB/sec which is about 0.9Gb.Ah I may have this wrong! I bought a Mac Mini 2012 in Jan.2013, so I guess it's likely to be SATA II only and run at 5400rpm only (gee thanks stingy Apple! Like how much would a 7200/SIII one have cost them extra!), hence why the Negotiated Link Speed must be showing 3Gb only.
Oh I see, from those figures it's an entirely moot issue then, it seems.RPM and link speed are not directly related. In any case, a 5400 or even 7200 rpm spinning disk won't come close to saturating even a 3Gb link. My 2012 Mini's 5400 RPM drive was 6Gb/sec for what it's worth, but actual throughput was around 115 MB/sec which is about 0.9Gb.