On Mon, May 21, 2012 at 4:14 PM, Mr. B-o-B <mr.chew.baka at gmail.com> wrote: > Josh More cried from the depths of the abyss... > >> Ext4 effectively does a block-level wipe when you do a delete. (Makes >> forensics difficult.) Odds are that your "rm" command has removed the >> file pointers, but the kernel has not yet completed scrubbing the >> disk. I would expect the space to become free once that process is >> done. >> > > Understood. Would the kernel scrubbing cause disk activity? I do not see > any disk activity at the moment. > I would expect that it does, but I don't know how the kernel on your system would prioritize that activity. Personally, I'd just run "sync" a few times and then check it in the morning. If it's not clear, then I'm wrong. :) Personally, if I were writing a driver and prioritizing read times (which is common), I would prioritize the scrubbing as low as possible, as that would only cause a production issue if the drive was near 100% full while a read prioritization issue would happen every time someone deleted a file. Not sure how the driver you're using was written though. -Josh