A couple of days ago I managed to split the fusion drive and unmount the 1TB HDD permanently. No more HDD spin up after sleeping. Very happy.
Just completed first installation of the Samsung 840 Pro 256GB.
Below a picture and screenshot of the benchmarks. (yes, little "Dexter" of 4 months was very interested)
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128GB blade SSD is used for OSX, Apps and Virtualbox Windows7.
256GB Samsung Pro is used for iTunes, Aperture (iPhoto) library etc.
Still not sure about the definitive upgrade though. Blade SSD 128GB for the OS is fine, 60GB free space left and fast enough for me.
Thinking of just fitting a 512GB Samsung 840Pro and save me the hassle of replacing the blade SSD for now.
I'll sleep on it a bit....
Thanks to all for giving me the confidence to give it a try.
Grtz,
Robert
Tilburg (NL)