However, two drives -- the Samsung and Kingston models -- have both written two petabytes worth of data and are still going. Given that a typical user might write a couple of terabytes of data a year on an SSD, that adds up to a thousand or so years based just on usage (the actual parts would disintegrate long before that, of course). It's worth noting that it was just a small, informal test -- but it bolsters the case that SSDs are far less likely to give you failure stress than hard drives, even though they've only been on the market a relatively brief time.