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