Not necessarily. Data degradation is a natural process so it depends what the controller decides to do with it. It will probably reallocate the block and bump the Reallocated_Event_Count counter in the smart status, but that doesn't mean that the SSD is going bad. If the counter starts increasing regularly though that could be an indication of future problems brewing.
The biggest indicator of problems is the Offline_Uncorrectable counter... that means data went bad that the SSD controller couldn't recover. Flash wear characteristics are such that controllers are supposed to be able to detect and rewrite weak data before it actually goes bad so if data does actually go bad it's probably a good idea to replace the SSD. -Matt On Thu, Mar 12, 2015 at 2:00 PM, Carsten Mattner <[email protected]> wrote: > On Thu, Mar 12, 2015 at 9:42 PM, Matthew Dillon > <[email protected]> wrote: > > When left powered, SSDs do internal scans and will slowly fix up > cells > > before the data becomes unrecoverable. > > Does that mean those cells are marked dead? >
