Ssd upgrade : Fuse or Unfuse the drives?

Hi everybody, I'm going to replace my hdd (1Tb fusion drive) in the Fusion Drive with an internal ssd.

After installing it should I fuse or unfuse the drives? Should I unfuse them before installing the new drive?

Thanks for any helpful suggestion

OS X Mountain Lion (10.8.4)

Posted on Jul 19, 2018 5:02 PM

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6 replies

Jul 19, 2018 6:30 PM in response to kurt_st3

A fusion drive is made by combining a large, slow drive with a fast, small SSD, hoping to get a moderately fast large drive out of the combination.


what are you keeping and what are you replacing?


You might get better performance overall by using a larger SSD (now more affordable than when fusion drives were introduced) as the boot drive, and the larger slower drive as just a data drive.


Editing movies?

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Ssd upgrade : Fuse or Unfuse the drives?

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