On Wed, Feb 24, 2016 at 10:50:41AM +0100, Otto Moerbeek wrote:
> On Wed, Feb 24, 2016 at 05:43:06AM +0000, John Long wrote:
> 
> > On Tue, Feb 23, 2016 at 09:48:44PM -0500, Nick Holland wrote:
> > > On 02/23/16 14:42, John Long wrote:
> > > > Is there any rule of thumb as to how full an ffs filesystem can be 
> > > > without
> > > > impacting performance or integrity issues?
> > > 
> > > The people who wrote the code set the limit at 95%...so if you are
> > > looking for a "Rule of Thumb"...that's it, provided by the People Who
> > > Know Best.
> > > 
> > > Most of us have managed to fill a partition completely with no harm to
> > > the system (no promises on the file!).  But performance isn't our
> > > concern at that point.  File integrity isn't an issue until you try to
> > > write when there is no space.
> > > 
> > > But really, if you are dancing over the 95% point and are happy about
> > > it, you have entered Special Case Land, rules of thumb don't apply and
> > > you are responsible for your own situation.
> > 
> > Thanks, this is good info. I need to get move some files around then. These
> > little Lemote boxes are such nifty ftp servers I tend to keep piling things
> > up on them.
> 
> But note the minfree reserve for root only (see tunefs(8)) is
> already set at 5% by default. If df(1) reports the fs is 100% full, 
> actually 5% room is left, for root only.

I remember that, thanks. Nice safety valve.

/jl

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