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CLS7

macrumors regular
Original poster
Jul 13, 2016
167
64
Malmoe, Sweden
I recently replaced the hard drive (mechanical disk) in my iMac late 2015 and replaced it with a 1tb SSD. There is also an Apple 'blade' SSD of 24 gb that has been over. Can I create a Fusion drive with the new SSD drive (connected on SATA III) and this 'blade' SSD? will it be better performance than just running the OS with the new SSD?
 

shaunp

Cancelled
Nov 5, 2010
1,811
1,395
Don't overcomplicate it. Just use the 1TB SSD and forget about the 24GB SSD that was part of the fusion drive. If you combine the two you just have twice as many things to go wrong.
 
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Fishrrman

macrumors Core
Feb 20, 2009
21,498
7,758
The above posters have it right.
DO NOT bother with "fusing" the new drive with the blade drive.

However... you might consider "wiping" the blade drive clean, then re-installing a fresh copy of the OS onto it, so that it will serve as a kind of "bare-bones" bootable SECOND drive inside.

You might not need it for normal usage, BUT... if something ever happens to the new SSD... you will be VERY happy it's there, because you'll still be able to boot the Mac...
 
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Voyageur

macrumors regular
Mar 22, 2019
205
199
Moscow, Russia
Used iMac SSD-only since 2013. Last two years I temporarily use iMac with Fusion Drive.
My opinion: In no case do not take Fusion Drive, if you have the opportunity to take an SSD
 
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mj_

macrumors 65816
May 18, 2017
1,240
809
Austin, TX
Used iMac SSD-only since 2013. Last two years I temporarily use iMac with Fusion Drive.
My opinion: In no case do not take Fusion Drive, if you have the opportunity to take an SSD
That wasn't his question at all. Like... literally not at all. Did you even read the actual contents of this thread or did you not even bother to go beyond the subject line?

@CLS7 I don't think there's a way to 'hide' the SSD, so to speak. The only way would be to pull it out of your system. What you can do instead is to use it as fast temporary storage. Some applications will allow you to configure a dedicated fast temporary scratch storage to speed things up.
 
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