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Q: How do I set up a fusion drive when my main drive is ssd?
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Mar 18, 2016 11:39 AMby lllaass,HelpfulWhy do you really want to do that?
I would just use the internal SSD as a lean bot drive and put data on the external drive
User Tip: Creating a lean, fast Boot Drive
In
Mac mini (Late 2012 and later), iMac (Late 2012 and later): About Fusion Drive - Apple Support
Apple says:
Can external USB, FireWire, or Thunderbolt hard drives be added to Fusion Drive?
An external drive cannot be used as part of a Fusion Drive volume. Fusion Drive is designed to work with an internal hard disk drive and internal flash storage.
