Double the failure risk, zero real-world speed: The hard truth about RAID 0 today

If you spend enough time in storage forums or Reddit threads, you will eventually encounter the same piece of advice repeated with quiet confidence: if you want speed, use RAID 0. The reasoning seems obvious because RAID 0 stripes data across multiple drives, so instead of one disk doing the work, two or four disks share it. In theory, that means double or quadruple the throughput and benchmarks often reinforce the idea. But the moment you step outside synthetic benchmarks and look at real workloads, the story becomes more complicated (not boring).