Incorrect df results (not -h, not a FAQ)

[nathang]

All,

I've been encountering some strange problems with one of our servers. The following is the df and mount output:

Filesystem    1K-blocks      Used    Avail Capacity  iused   ifree %iused  Mounted on
/dev/mfid0s1a 137729560 106243486 20467710    84% 11261804 6543506   63%   /
devfs                 1         1        0   100%        0       0  100%   /dev
procfs                4         4        0   100%        1       0  100%   /proc


/dev/mfid0s1a on / (ufs, NFS exported, local, soft-updates)
devfs on /dev (devfs, local)
procfs on /proc (procfs, local)

Unfortunately, no data can be written to the disk (well I'm glossing over a minor detail). A reboot did not resolve the problem. Any ideas would be appreciated. Note: this is a dell using the MFI driver. And: FreeBSD 6.3-PRERELEASE amd64

Thanks in advance.