"When they originally began to hit the market, solid state drives were hailed for both speed and reliability. Many users assumed that because an SSD has no mechanical parts it is at less risk to fail. It’s simple logic that is correct more often than wrong – if there are fewer parts to break overall reliability will be better.
In this case, however, that logic is not always correct. An in-depth article at Tom’s Hardware suggests that solid state drives and mechanical drives are equally reliable for at least their first few years of use and another study by a French retailer suggests that the two are equally reliable..."