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Getting the new 5k i9 8 core 27ich with 2tb fusion drive ssd. My current mac the 21 inch 4k with 3.1ghz i5 which has a 1tg drive which is about half full. Using Migration what will happen to that data is the software smart enough to copy the osx only onto the ssd and the rest of data to the standard HDD?

Thanks

iMac 21.5", macOS 10.12

Posted on Jul 15, 2019 11:34 PM

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5 replies

Jul 16, 2019 3:34 AM in response to bryn212

You are already spending $200 optional to get that 2TB Fusion drive. Stretch another $300 and get the 1TB flash SSD that would be orders of magnitude faster than the Fusion drive, offer less complication from a migration assistant perspective, and let you actually realize the full performance of this expensive Mac.


I purposely have no experience with Fusion drives, so cannot answer how migration assistant will treat the distribution (if any) of the content from the 21 inch iMac. Surely others that do have this experience will chime in here.



Jul 16, 2019 6:18 AM in response to VikingOSX

No the 2TB came as standard as I'm getting the 8 core 27inch i9. I run my current mac 21.7 4k core i5 an a 1tb ssd drive using usb but the new one has 3.2 so thats good. I was more curious about the current 700GB of content and how that will be divided into the new imac which I think is I think a 256 ssd and the 2 tb standard. Will it know that it should really only put operating system files within the SSD. I won't be that big of a problem as at the moment I might just run my new 27ich 8 core i9 on my ssd I used at the moment as every time I do an osx software update some of my applications stop working, like photoshop etc.

Thanks for info.

Jul 16, 2019 8:54 AM in response to bryn212

I would not select the Fusion drive here.


Don’t hinder the speed of that i9.


If you can’t swing an SSD in place of that (and don’t want to go third-party), downgrade the processor a notch and then go SSD.


Fusion drives are unified volumes, and macOS shuffles “hot” content from HDD to SSD and cooler content back to HDD, and that HDD is not going to be fast. If you’re dealing with big files such as media files, that HDD will be active.

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