70 lines
1.9 KiB
Plaintext
70 lines
1.9 KiB
Plaintext
|
#! /bin/sh
|
||
|
|
|
||
|
|
#=================================================================
|
||
|
|
#
|
||
|
|
# I/O Checker (KBPS)
|
||
|
|
# This Script uses iostat to monitor disk io
|
||
|
|
# Useful for notifications of disk thrashing.
|
||
|
|
#
|
||
|
|
# Authors: TheRocker
|
||
|
|
# SpEnTBoY
|
||
|
|
#
|
||
|
|
# Email: therocker@pawprints.2y.net
|
||
|
|
# lonny@abyss.za.org
|
||
|
|
#
|
||
|
|
#================================================================
|
||
|
|
|
||
|
|
NUMBER1=`rsh $1 -l root iostat -d | grep -e "hdisk" | tr -s ' ' | cut -d' ' -f2 | sort -2 -r | cut -c1 | line`
|
||
|
|
NUMBER2=`rsh $1 -l root iostat -d | grep -e "hdisk" | tr -s ' ' | cut -d' ' -f2 | sort -2 -r | cut -c2 | line`
|
||
|
|
TMPFILE=/tmp/iotest.hndl
|
||
|
|
TMPTOO=/tmp/iotwo.hndl
|
||
|
|
|
||
|
|
#===========================================================
|
||
|
|
#
|
||
|
|
# We do an evaluation on $NUMBER1 and $NUMBER2 to see if
|
||
|
|
# disk io is exceeding 40%.
|
||
|
|
#
|
||
|
|
#===========================================================
|
||
|
|
|
||
|
|
if [ "$NUMBER1" -gt 4 ] && [ "$NUMBER2" -gt 0 ]
|
||
|
|
then
|
||
|
|
|
||
|
|
`rsh $1 -l root iostat -d | grep -v cd0 | tr -s ' '| cut -d' ' -f1,2 | grep -e "4[0-9]." >> $TMPFILE`
|
||
|
|
|
||
|
|
#====================================================================
|
||
|
|
#
|
||
|
|
# Of course, there may be more than one hard disk on the node
|
||
|
|
# so we use this bit of code to report on more than one instance
|
||
|
|
# of excessive disk IO.
|
||
|
|
#
|
||
|
|
#====================================================================
|
||
|
|
|
||
|
|
LINES=`wc -l /tmp/iotest.hndl | cut -c8`
|
||
|
|
LINESCTL=`wc -l /tmp/iotest.hndl | cut -c8 `
|
||
|
|
echo "WARNING!!! Disk I/O Exceeding 40% on --> \c"
|
||
|
|
|
||
|
|
while [ $LINESCTL != 0 ]
|
||
|
|
do
|
||
|
|
|
||
|
|
cat $TMPFILE | tail -$LINESCTL > $TMPTOO
|
||
|
|
cat $TMPTOO > $TMPFILE
|
||
|
|
LINESCTL=$(( $LINESCTL -1 ))
|
||
|
|
LINES=$(( $LINES -1 ))
|
||
|
|
DATA=`head -1 /tmp/iotest.hndl`
|
||
|
|
echo "( $DATA ) "
|
||
|
|
|
||
|
|
|
||
|
|
done
|
||
|
|
echo "\n"
|
||
|
|
|
||
|
|
rm -f $TMPFILE
|
||
|
|
rm -f $TMPTOO
|
||
|
|
exit 1
|
||
|
|
|
||
|
|
else
|
||
|
|
|
||
|
|
print "No Disk I/O Exceeding 40%...OK"
|
||
|
|
exit 0
|
||
|
|
|
||
|
|
fi
|