The Corsair, Intel, and Kingston SSDs all issued SMART warnings before their deaths, giving users plenty of time to preserve their data
. The HyperX's warnings ended up being particularly premature, but that's better than no warning at all. Samsung's own software pronounced the 840 Series and 840 Pro to be in good health before their respective deaths. Worryingly, the 840 Series' uncorrectable errors didn't change that cheery assessment
If you write a lot of data, keep an eye out for warning messages, because SSDs don't always fail gracefully. Among the ones we tested, only the Intel 335 Series and first HyperX remained accessible at the end. Even those bricked themselves after a reboot. The others were immediately unresponsive, possibly because they were overwhelmed by incoming writes before attempted resuscitation.
Also, watch for bursts of reallocated sectors. The steady burn rates of the 840 Series and 840 Pro show that SSDs can live long and productive lives even as they sustain mounting flash failures. However, sudden massacres that deviate from the drive's established pattern may hint at impending death, as they did for the Neutron GTX and the first HyperX.