On Wed, 2008-07-23 at 15:09 +0200, Ralph Angenendt wrote:
Sean Carolan wrote:
Can anyone help make sense of this? This is an ext3 partition. It's only showing 403GB out of 426GB used, but then it says only 632MB available? Where'd the extra ~25GB go?
Those are the ~ 5% which are automatically reserved for root ...
man tune2fs
Further, there is some overhead for i-nodes and what not. I don't recall if that is included or excluded in/from the df calculations.
A "df -i" will likely show a *very* large number of available i-nodes and a small percent used. I've many times made a file system and reduced the number of i-nodes substantially and gained a *lot* of space. Due diligence is required: the profile of number of files, average files sizes, temporary files during busiest parts of the day, ... must be taken into consideration to derive a "safe" usable number. Get wrong and you'll need some aspirin for the headache.
Also, when making the file system, reducing the amount reserved for root is usually safe on today's larger drives, especially on a relatively stable system/user base/file/system usage.
Ralph
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