tps

Not sure if tps is equal to r/s + w/s. If so we can save 10s and avoid invoking iostat twice

~# diff check_iostat.sh /usr/lib/nagios/plugins/check_iostat.sh
86c86
samples=2i
186a187
> TMPD=`$iostat $disk -k -d 10 $samples | grep $disk | tail -1`
187a189
> tps=`echo “$TMPD” | awk ‘{print $2}’`
190d191