Date: Tue, 16 Oct 2007 11:49:13 -0400 (EDT) From: Paul Kupfer <kupfer@ldc.upenn.edu> To: freebsd-fs@freebsd.org Subject: du and df discrepancy Message-ID: <20071016114035.O64828@lorax.ldc.upenn.edu>
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I am seeing a very odd problem on a FreeBSD 6.1-PRERELEASE #0 mail server we have. We originally had a separate scsi device mounted as /var/mail (note this was underneath the mountpoint for /var). We reached a point where space on /var was running out, and running a df on that volume would show that there was only 160M out of 5.8G available (and 5.2G used). So I ran "du -hc /var" to see where I could remove some old files. du output shows the total of /var to be 311M, which is vastly different than what du tells me. I thought that this was perhaps a result of the way we had things mounted, and so I unmount the /var/mail device and remounted it as /mail, then put a symlink from /mail to /var/mail, still no dice, same results. I have not rebooted the machine yet (was hoping I wouldn't have to since it is a mail server). Is it possible that the inode tables are "out of whack" since changing these mountpoints, perhaps an fsck? Anyone ever seen anything like this before? Any help would be greatly appreciated. -Paul-
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