1 - 2 horas
I want to add a secondary SSD HDD in to my new Mac Mini.
I did it followed the guide on ifixit websit.
The hardware installation is easy for me. And then I made a fusion drive in Mac OSX, but I forgot backup my OSX system firstly. So there was noting on the fusion drive. I used the Internet Recovery service from Apple site, but it's so long.
Finally, it's running better and I enjoy it.
Don't forget backup your data and system before making a fusion drive.