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List: illumos-discuss
Subject: Re: [discuss] strange du outputs
From: "Peter Tribble" <peter.tribble () gmail ! com>
Date: 2016-03-08 11:14:00
Message-ID: CAEgYsbEkAE0GvewEDxeyOXXOeoVdOvF1od7rUPQRjskxcESdjg () mail ! gmail ! com
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>
> I have a strange situation with a simple zfs filesystem, no compression,
> no dedup, just a bare zfs.
> It runs almost 1T of imap storage, up since 2012.
>
> Now i found this strange du issues in some folders:
>
> /sonicle/var/spool/imap/user/edp$ du -h
> ...
> 277M ./F1/F2
> 622M ./F1
> ...
>
> then
>
> /sonicle/var/spool/imap/user/edp : du -h F1
> 1.5G F1/F2
> 1.8G F1
>
> This last one is the correct one.
> Looks like sizes are misleaded when using du on the current tree rather
> than on a specific folder...
> Just for some folders...
>
> Any idea?
>
If you have files that are hard-linked, then du will only report them once,
and they'll be accounted for the first time they're seen.
--
-Peter Tribble
http://www.petertribble.co.uk/ - http://ptribble.blogspot.com/
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[Attachment #3 (text/html)]
<html><html><div dir="ltr"><div class="gmail_extra"><div \
class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 \
.8ex;border-left:1px #ccc solid;padding-left:1ex"><div \
style="color:rgb(0,0,0);font-family:Arial;font-size:12px">I have a strange situation \
with a simple zfs filesystem, no compression, no dedup, just a bare zfs.</div><div \
style="color:rgb(0,0,0);font-family:Arial;font-size:12px">It runs almost 1T of imap \
storage, up since 2012.</div><div \
style="color:rgb(0,0,0);font-family:Arial;font-size:12px"><br /></div><div><font \
face="Arial"><span style="font-size:12px">Now i found this strange du issues in some \
folders:</span></font><br /><br /><font face="Arial"><span \
style="font-size:12px">/sonicle/var/spool/imap/user/edp$ du \
-h</span></font></div><div><font face="Arial"><div><span \
style="font-size:12px">...</span></div><div><span style="font-size:12px"> 277M \
./F1/F2</span></div><div><span style="font-size:12px"> 622M \
./F1</span></div><div><span style="font-size:12px">...</span></div><div \
style="font-size:12px"><br /></div><div style="font-size:12px">then</div><div \
style="font-size:12px"><br /></div><div \
style="font-size:12px"><div>/sonicle/var/spool/imap/user/edp : du -h F1</div><div> \
1.5G F1/F2</div><div> 1.8G F1</div></div></font></div><div \
style="color:rgb(0,0,0);font-family:Arial;font-size:12px"><br /></div><div \
style="color:rgb(0,0,0);font-family:Arial;font-size:12px">This last one is the \
correct one.</div><div \
style="color:rgb(0,0,0);font-family:Arial;font-size:12px">Looks like sizes are \
misleaded when using du on the current tree rather than on a specific \
folder...</div><div style="color:rgb(0,0,0);font-family:Arial;font-size:12px">Just \
for some folders...</div><div \
style="color:rgb(0,0,0);font-family:Arial;font-size:12px"><br /></div><div \
style="color:rgb(0,0,0);font-family:Arial;font-size:12px">Any idea?<br \
/></div></blockquote><div><br /></div><div>If you have files that are hard-linked, \
then du will only report them once,<br /></div><div>and they'll be accounted for \
the first time they're seen. <br /></div><div> </div><div>-- <br \
/></div></div>-Peter Tribble<br /><div class="gmail_signature"><a \
href="http://www.petertribble.co.uk/" \
target="_blank">http://www.petertribble.co.uk/</a> - <a \
href="http://ptribble.blogspot.com/" \
target="_blank">http://ptribble.blogspot.com/</a></div></div></div></html><div \
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