Here is a graph using SMARTLOG data collected by Anvil. It’s not showing anything of interest as it is only collecting data collected over a couple of days, however over time it would hopefully be possible to see correlating events, such as relocation events and error counts.

(BTW, I shifted the decimal place by 6 for On-the-fly ECC & Soft ECC values to keep a reasonable scale. Writes are on the second axis for the same reason).