How does filling a disk to capacity affect performance?

Mon Apr 4 23:23:28 AEST 1988

I'm managing some suns for the first time, and had quite a shock when
the disk read 106% full.  After reading the manual, it explained that
the 'df' command adjusts the reading so that when it says 100% full,
the disk really is only 90% full.  It goes on to say that having the
disk over 90% would affect its performance.  Does anyone know exactly
how the performance is affected, and if there are any reasons not to
keep a disk at 96-99%??????

Michael S. Czeiszperger           | Guest account courtesy of Math Dept.
Systems Analyst                   | Snail: Room 568 Dreese Labs      (614)
Dept. of Electrical Engineering   |        1971 Neil Avenue            292-
The Ohio State University         |        Columbus, OH 43210           0161
cbosgd!osu-cis!osupyr!czei        | czei at osupyr.mast.ohio-state.edu