This morning, Apple introduced the new iMac, with a build-to-order storage configuration called "Fusion Drive". But what is Fusion Drive? Although it could be an off-the-shelf hybrid drive, I believe it is a software driver in Mac OS X. Update: Apple's Knowledge Base article on Fusion Drive for Mac Mini and iMac essentially confirms my conclusion: Fusion Drive is a function of … [Read more...] about Is Apple’s Fusion Drive a Hybrid HDD or Tiering Software?