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Use fusion drive or separate physical disk?

Hello

I have my new iMac 2017: i7 / 32G / R580 / 3Tb fusion drive

Well. Fusion drive is 128SSD PCIe + 3Tb HDD SATA using CoreStorage system for system recognize 3,12Tb in only one logical unit (more or less).

On many websites, I reading that fusion drive is better than separate disk for amateur people because users don't care to where save your files or dates... because disk speed is more slowly than separate disk as system move files automatically.

In my last iMac I decided where to save the files because I had scrap fusion drive.

- 128SSD to OS and apps

- 3Tb to storage data (iMovie and FCX projets, virtual machines...)

My question is:

What option is the best? and, why?

Thanks!

Whatever option works best for you. We can't tell you which to use.

Ok I understand you...

Only I known that what configuration is the best. For example: Which is the difference between speed options?

Personally I have a DIY Fusion Drive in my Mac Pro and I find the increase in performance of the Fusion Drive over the hard disk drive to be well worth the effort.

It is true that if I work with data that has been migrated to storage on the HDD, the performance lacks slightly but generally I find I am working the vast majority of the time with data directly from the SDD and performance then is great.

For me is has enabled me together performance from my 2010 Mac Pro has allowed me to keep it this long.

If only SSD speed perfrmsnce is 100% and HDD is 60% I supuse that fusion drive is ummm 80%?

The problem is that Apple does”t upgrade SSD to 266Gb for example

It is nowhere near that simple. If the SSD portion of the Fusion Drive is large enough to contain the vast majority of the data you use then the performance will nearly the same as the performance for the SSD. If on the other hand, the SSD is only large enough for a small faction of the data and data is constantly be migrated back and forth between the SSD and HDD then the overall performance is far closer to the HDD.

In my case, the OWC Mercury Accesior E2 PCIe card with 128 GB of storage is able to hold enough of my data to keep performance reasonable close to what I see from the SSD alone.

A Fusion drive is a little faster than the HDD but not nearly as fast as an SSD alone. However, in the Fusion drive that overlooks what goes on behind the scenes as files are moved to or from the SSD to the HDD.

Your SSD is really too small for anything but a boot drive and a few files. But in the Fusion Drive you will get better performance than simply a faster startup.

最后更新：2017-08-31 10:24:42

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