> After it's been up for a few weeks I start seeing discrepancies > between what df tells me is free space and how much space du reports > as being used. A few weeks ago I got 'disk full' errors and rebooted > the thing which "solved" it for the moment, but not permanently.
>From the newfs manual page: -m free-space The percentage of space reserved from normal users; the mini- mum free space threshold. The default value used is 5%. See tunefs(8) for more details on how to set this option.