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发布于2012年10月23日。酷睿i5或酷睿i7处理器。配备Apple Fusion Drive.

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What kind of SATA connection have Mac mini Late 2012?

Hello,

I see that Mac mini Late 2012 have a Hitachi HTS545050A7E362 HDD

What kind of SATA connection have that Hitachi HDD?

And what kind of SATA connection have Mac mini Late 2012? SATA II or SATA III?

Regards

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Boy Nick you got good eyes! Did you figure out what HD just by the presentation and Apple web site info? Assuming that is correct:

Looking at the Hitachi web site Hitachi TravelStar HD's All of their current drives are SATA III (6GB/s) so it's likely the custom Apple HD Hitachi makes is a SATA III. Beyond that it's anyones guess until iFixIt does a tear down or someone does a guide for it.

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Hello,

I see it in the iFixit Guide: in the HDD and in the System Profiler capture at the end of the guide:

http://guide-images.ifixit.net/igi/iDJYl...

http://guide-images.ifixit.net/igi/Ln6nI...

Hitachi Travelstar Z5K500 family have both: SATA II (3Gb/s) and SATA III (6Gb/s)

Regards

完成的

I should have guessed the iFixIt team had already done a teardown on it! Wow that was fast! This drive is not a Fusion drive (the Fusion for this model is a 1GB unit) so we don't know who is making it (yet).

完成的

As to the data rate best to post a note in the teardown page asking the question. Maybe they will know.

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The Mid-2011 Minis have SATA-III (6GB/s), so I'd expect these do too.

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You are right, since 2011 Mac mini (and iMac) have SATA III, only remains to know if the HDD are SATA III too

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According to the linked spec sheet, the transfer rate off the platters is the same, significantly below what even SATA-II supports. Probably need a 7200RPM drive for it to matter.

完成的

I/O of the disks them selves is not the same as the SATA I/O spec. You forgot about read/write caching which effects the drives true I/O. And, don't forget the difference between Bits Vs Bytes here when you read a spec sheeet.

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Caching doesn't help if you're streaming huge files-- eventually you top out at the rate you can get the bits off the platters. In the other case where you do lots of random reads/writes, cache size is of limited help. Don't get me wrong, caching helps a lot of the time, but if everything else is the same, a 7200RPM drive will generally outperform one spinning at 5400RPM.

I didn't confuse bits/bytes. The disk I/O is less than SATA-II.

完成的

Yes, your right caching doesn't help as far as the drives throughput when your reading/writing large chunks of data. My point here was on the other side of things the SATA I/O side. Here is where the I/O is burst across due to caching which is why you need to set the I/O of the device to match the I/O of the bus. Which was the point I was making not the throughput aspect. Granted a faster RPM drive allows faster read/writes, which is why I always go for the 7200 drives when ever possible.

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