Comment by gruez
14 hours ago
>but that's different because that drive has those 256GB split over several NAND chips inside, so wear is spread out and shuffled around by the controller to extend lifespan. But when your entire wearable storage is a single soldered chip, I'm not very optimistic about long term reliability.
I thought wear leveling worked at the page/block level, not the chip level? On an SSD, if there was a failure of an entire chip, you're still screwed.
You're correct, GP's understanding of how wear leveling works is off by several layers. Counting the number of BGA packages tells you nothing. There are multiple NAND dies per package, multiple planes per die, many blocks per plane, and the size of each erase block is the largest-scale feature that is relevant to wear leveling.