Transitioning from PC here. The main reason I decided to go Mac is the software have superior hardware compatibility with media creation software such as final cut and logic pro. I own a powerful PC at the moment but absolutely NON of the software was able to use it at it's full potential (Mainly GPU acceleration rendering). The only one to use CUDA or OpenCL 2.0 for consumer market was Premier Pro, and I'm not a fan of the subscription module. Sony Vegas support is but a mess and only support older GPU architecture for GPU acceleration. Now I decided to move to the mac platform, but there's the remaining question. I'm enjoying my current PC being absolutely MAINTENANCE FREE thanks to my Samsung 850 EVO SSD, I don't need to defrag. I'd love my mac to be the same as well, but seeing the options of iMac models only provide fusion drive and SSD flash drives without the option to add another HDD. I'm gonna install lots of creative applications and I doubt the 128GB of solid state space in the 3TB fusion is being enough. With that said, does the 3TB fusion need defragmentation occasionally?