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Re: Monitor file system free space

Osamu Aoki wrote at 2009-12-22 07:28 -0700:
> On Tue, Dec 22, 2009 at 08:24:25AM -0500, mark@neidorff.com wrote:
> > I had a problem with my (small) disk filling up and crashing my mail
> > server.  So, I wrote a simple perl script to take the output of 'df -h'
> > and look for a % full that is greater than 97% and send me an e-mail if
> > the % is greater than 97.  I run the script daily from crontab.  It works
> > fine.
> 97% seems very high.

> I think 80% is high enough. (This is just guts feeling....)

That statement is too broad.  Percentage matters not at all, actual bytes free 
space does matter.

If I want 500MiB free space, that is 99.95% filled of 1TiB space, but 97.50% of 
20GiB space.

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