16-year-old SATA II SSD survives 1 petabyte of writes, 25x the drive's rating

A 16-year-old SanDisk P4 SSD survived writing 1 petabyte of data—25 times its manufacturer's 40 TBW (terabytes written) rating—while remaining fully functional after over 60,000 hours of power-on time. The experiment demonstrates that SSDs are significantly more durable than their TBW ratings suggest, and that this conservative metric is merely a warranty guideline rather than a hard failure threshold. Manufacturers intentionally engineer SSDs to operate well beyond rated specifications, similar to how vehicles can function reliably beyond their rated mileage.