Just realized that many people had the same problem. If I read the comments too, I would have saved myself a lot of trouble :). But at least we have a plausible reason for the described behavior: the position matters, and OS X may try to handle the 2 drives as one Fusion drive (and somehow fails at that). Maybe it's a setting issue, or just has not been tested this way. Consumers should not upgrade to SSD by themselves :).
I have followed the good advice here on upgrading a 2013 Mac Mini (500GB) to SSD.
However, on step 37 I disagree. What happened:
- I had OS X Maverick on the original 500 GB HDD
- installed the SSD in the "Upper" position, as in the figure
- left the original 500 GB drive in its original, "Lower" position (meaning upper when the Mac is upside down)
- followed the steps in 37
- install was terribly slow, ~6 hours; there was some data corruption, the SSD would not boot; I tried to fix permissions, disk etc, no help; benchmarks showed slow read with normal write speed; after a while there was an error about the SSD could not be repaired and it disappeared (unmounted)
- at some point I've seen some complaint about Fusion drive. Then l realized that is it possible Maverick tried to treat the SSD + HDD as a single fusion drive?
- switched the positions of the HDD and the SSD, so now the SSD was in "Lower" position. Also moved the protecting/insulating sheet to the SSD.
- Now everything works. So, position matters!
Sobald er das hat, wird er in der Lage sein, eine Grafik zu seiner im Laufe der Zeit erlangten Reputation zu sehen.
Hier ist eine Vorschau, wie die Grafik aussehen wird:
Noch keine Reputation erlangt.