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I have the following df -h output:

/dev/mfid0s1d    9.7G    8.9G     28K   100%    /var

However, when I try to du -hs /var, I got this result:

#du -hs /var
3.3G    /var

My question is, where the hell is my 5.6G data? Or, maybe there's something I don't understand about freebsd?

My server info:

#uname -a
FreeBSD 8.0-STABLE FreeBSD 8.0-STABLE #0: Sat Apr 10 04:13:38 WIT 2010  amd64
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What kind of storage volume is mfid0s1d? Some unices (e.g. Solaris) can have multiple filesystems sharing the same storage area, so this situation could arise if /var and another filesystem shared a 9.6GB volume. I don't know if this exists in FreeBSD. – Gilles Oct 5 '10 at 21:47
@Giles: I'm not really sure how to check it. Do know the command? – ariefbayu Oct 5 '10 at 22:39
up vote 0 down vote accepted

My sysadmin told be that du & dh something give a delayed result. Because, after several minutes, I check back and du did display right value.

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