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

The Sandisk P4, launched in 2010, was put through an experiment by WolfyTech, where it wrote 1 petabyte (1,000 TB) of data, surpassing its 40 TBW endurance rating by 25 times. This model, available in capacities from 4GB to 128GB, utilized 32nm MLC NAND, which, despite being considered archaic, proved to be durable. The drive also logged over 60,000 power-on hours and over 1,100 power-ups, showcasing its resilience.

The experiment's findings align with the understanding that SSDs can continue to function beyond their specified TBW ratings. The common misconception that SSDs immediately fail or become unusable after exceeding their TBW ratings has been disproven. Instead, manufacturers establish TBW values as guidelines for warranty coverage, not as definitive indicators of drive failure. This instance with the Sandisk P4, along with other SSD endurance tests found online, challenges the conservative TBW numbers provided by vendors.

The implications of this experiment are significant for consumers and manufacturers alike. While it's reassuring that SSDs like the Sandisk P4 can outlive their specified endurance ratings, it's crucial to note that doing so doesn't mean one should push their SSD to its breaking point. As the market situation currently stands, taking extra care of SSDs is advisable. The findings also underscore the importance of understanding the actual capabilities of SSDs, beyond their specified ratings, and how they can be utilized effectively.