Refresh a Fusion Drive
Q The Fusion Drive in my iMac 27-inch is getting slower. How can I restore its speed?
by SAM GILBERT
A When Apple introduced Fusion Drives in late 2012, larger SSDs (solid-state drives) were still very expensive, and combining a smaller one with a large hard drive delivered good performance at relatively little additional cost. There’s a price to pay in the end, though: Fusion Drives don’t last as long as SSDs, and may even fail earlier than a conventional hard drive, because of the increased ‘wear’ they
