Did you delete a lot of files, or a very few large ones? I'm wondering if your backup service is keeping a file-handle open on a backup vault. <div><br></div><div>-Rob</div><div><br><br><div class="gmail_quote">On Mon, May 21, 2012 at 4:18 PM, Josh More <span dir="ltr"><<a href="mailto:jmore@starmind.org" target="_blank">jmore@starmind.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On Mon, May 21, 2012 at 4:14 PM, Mr. B-o-B <<a href="mailto:mr.chew.baka@gmail.com">mr.chew.baka@gmail.com</a>> wrote:<br>
> Josh More cried from the depths of the abyss...<br>
><br>
>> Ext4 effectively does a block-level wipe when you do a delete. (Makes<br>
>> forensics difficult.) Odds are that your "rm" command has removed the<br>
>> file pointers, but the kernel has not yet completed scrubbing the<br>
>> disk. I would expect the space to become free once that process is<br>
>> done.<br>
>><br>
><br>
> Understood. Would the kernel scrubbing cause disk activity? I do not see<br>
> any disk activity at the moment.<br>
><br>
<br>
</div>I would expect that it does, but I don't know how the kernel on your<br>
system would prioritize that activity. Personally, I'd just run<br>
"sync" a few times and then check it in the morning. If it's not<br>
clear, then I'm wrong. :)<br>
<br>
Personally, if I were writing a driver and prioritizing read times<br>
(which is common), I would prioritize the scrubbing as low as<br>
possible, as that would only cause a production issue if the drive was<br>
near 100% full while a read prioritization issue would happen every<br>
time someone deleted a file. Not sure how the driver you're using was<br>
written though.<br>
<span class="HOEnZb"><font color="#888888"><br>
-Josh<br>
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