It was fine before I reach low free space and I don&#x27;t have SATA 3.1, not even 3, possible 1 lol, so it was synchronous ?<p>I guess the controller needs some temporary space to do its magic and below that point it will struggle.<p>The odd fact is that freeing space didn&#x27;t allow for normal behavior until &quot;forcing&quot; an actual trim.