I have a Crucial 500 GB SSD (CT500MX500SSD4) which is reporting a non-zero number of data address mark errors. Other parameters appear fine (wear leveling is occurring, there are currently no I/O errors or failures at the OS or user-mode level, and the only other errors are old ultraDMA CRC errors that I have already ruled out as an old bad connection. The data address mark errors are new (they arose in the last two weeks, on a laptop with use of about 5-6 hours per day). All files can be successfully read (backups, including a recent full one, are succeeding).
I know that for spinning hard disks, this parameter is informational and does not indicate imminent drive failure (source), because this error may arise through benign one-time servomechanism seek/addressing failures or local degradation. However, SSDs locate blocks by addressing directly into flash chips without any opportunity for electromechanical error.
Does this mean that data address mark errors, on an SSD in particular, are a sign that indicates imminent or ongoing drive failure?