Quote Originally Posted by alfaunits View Post
Not so, a TRIM only MARKS a page free, but it does not (necessarily) erase the block (most probably it is not the entire block that is free but just that page or a few pages).
The only question is when is an erase performed if the entire block is free at the time of the TRIM.

I would expect a page marked as free to have specific data (i.e. all zero or all ones), whereas the test I mentioned shows the original data is read instead, even if the file was deleted for a long time. That prolly means TRIM is not doing anything (or the blocks are erased only when needed - hmph...).
OK, thanks.