#!/bin/bash

# SCript to check the Virtual Volumes occupation
# Script by To Lai Dien
# modify for performance
# date: 18-07-2016



if [ "$1" == "" ] || [ $2 == "" ] || [ $3 == "" ]
then
	echo Invalid usage : check_3par 3PAR Username/passwordfile <Virtual Volume to check>
	exit 3
fi

3PAR=$1
USERNAME=$2
COMMAND=$3
TMPDIR=/tmp
CRITICAL=90
WARNING=80

# To connect using SSH. uncomment the following line
CONNECTCOMMAND="ssh $USERNAME@$3PAR"
# Note : connecting using SSH requires setting public key authentication


        $CONNECTCOMMAND showvv -csvtable > $TMPDIR/3par_$COMMAND.$3PAR.out
        if [ $? -gt 0 ]
        then
                echo Could not connect to 3PAR $3PAR
                exit 3
        fi

	VSIZE=`cat ${TMPDIR}/3par_${COMMAND}.${3PAR}.out | grep ${COMMAND}  | cut -d, -f12`
        VSIZE_B=`expr \( $VSIZE \* 1024 \* 1024 \)`

	USED=`cat ${TMPDIR}/3par_${COMMAND}.${3PAR}.out | grep ${COMMAND}  | cut -d, -f11`
        USED_B=`expr \( $USED \* 1024 \* 1024 \)`

	FREE=`expr \( $VSIZE \- $USED \)`
        FREE_B=`expr \( $FREE \* 1024 \* 1024 \)`
        
        FREEPERCENT=`expr 100 \- \( \( $USED \* 100 \) \/ $VSIZE \)`
        USEDPERCENT=`expr 100 \- \( $FREEPERCENT \)` 

	WARNCRAW=$(($VSIZE*$WARNING/100))
        WARNCRAW_B=`expr \( $WARNCRAW \* 1024 \* 1024 \)`

	CRITCCRAW=$(($VSIZE*$CRITICAL/100))
	CRITCCRAW_B=`expr \( $CRITCCRAW \* 1024 \* 1024 \)`


	if [ $USED_B -ge $CRITCCRAW_B ]
        then
                echo CRITICAL! TOTAL: $VSIZE\Mb\  USED: $USED\Mb\ \($USED-PERCENT%\)  FREE: $FREE\Mb\ \($FREE-PERCENT\)\|TotSize=$VSIZE_B Used=$USED_B,$WARNCRAW_B,$CRITCCRAW_B
                rm -f $TMPDIR/3par_$COMMAND.$3PAR.out
		exit 2
        else
        	if [ $USED_B -ge $WARNCRAW_B ]
        	then
                	echo WARNING! TOTAL: $VSIZE\Mb\  USED: $USED\Mb\ \($USED-PERCENT%\)  FREE: $FREE\Mb\ \($FREE-PERCENT\)\|TotSize=$VSIZE_B Used=$USED_B,$WARNCRAW_B,$CRITCCRAW_B
        	        rm -f $TMPDIR/3par_$COMMAND.$3PAR.out
			exit 1
	        else

                        echo OK : TOTAL: $VSIZE\Mb\  USED: $USED\Mb\ \($USEDPERCENT%\)  FREE: $FREE\Mb\ \($FREEPERCENT%\)\|TotSize=$VSIZE_B Used=$USED_B,$WARNCRAW_B,$CRITCCRAW_B
                        rm -f $TMPDIR/3par_$COMMAND.$3PAR.out
			exit 0
                fi
        fi