newfs -m for large filesystem

[Robert Bonomi]

> From owner-freebsd-questions at freebsd.org  Fri Nov 23 09:31:00 2012
> Date: Fri, 23 Nov 2012 16:27:23 +0100
> From: Ireneusz Pluta <ipluta at wp.pl>
> To: freebsd-questions at freebsd.org
> Subject: newfs -m for large filesystem
>
> Hello,
>
> are the remarks given for the -m option in tunefs(8) and newfs(8) still 
> the same for very large filesystems, or the free-space margin might be 
> safely reduced in these cases?
>
> For instance, when I have a 12TB filesystem then the default 8% margin 
> gets close to the value of 1TB, which seems like a waste of capacity.

the tunefs remarks do apply.  especially the threshold for space vs. time
optimization.

That said, there is nothing detrimental to reducing minfee to 5%