I have a serious question:
"Is secure erasure necessary on SSDs?"
Once a trim completes, aren't all the unused blocks in garbage collection re-zeroed any way? And if the NAND block is damaged, then that data wouldn't be reliable any way because the write failed. That's how you know it's damaged.
It might be possible the file tree may contain references to said erased data. But the data file would be empty.
So what am I missing?
"Is secure erasure necessary on SSDs?"
Once a trim completes, aren't all the unused blocks in garbage collection re-zeroed any way? And if the NAND block is damaged, then that data wouldn't be reliable any way because the write failed. That's how you know it's damaged.
It might be possible the file tree may contain references to said erased data. But the data file would be empty.
So what am I missing?