#!/bin/ksh

#
# 21/07/2003, Thomas Sluyter, UNIX Support
# Script develloped by Sun Team (Thomas Sluyter) in his role as Storage Administrator
# for SMG Team.
#
# Script will determine the amount of EMC disk space assigned to a Sun Solaris host,
# along with the amount of this space used up by volumes. Per file system volume 
# (raw database volumes are excluded) the script will also list the amount of free
# space.
#
# A method to determine the usage on a raw database device also needs to be determined.
#


# Initial clean up, in case this script ran earlier with a failure
rm /tmp/diskfree.* >/dev/null 2>&1
 
# Build list of controlers
LOCCONTS=`vxdmpadm listctlr all | grep -v "=" | grep -i "emc" | grep -v "CTLR-NAME" | awk '{print $1}' | sed -e 's/c//' | tr -d '\n'`
EMCCONTS=`vxdmpadm listctlr all | grep -v "=" | grep -i "emc" | grep -v "CTLR-NAME" | awk '{print $1}' | tr -s '\n' ' ' | awk '{print $1}'`
EMCPRIM=`vxdmpadm listctlr all | grep -v "=" | grep -i "emc" | grep -v "CTLR-NAME" | awk '{print $1}' | head -1`
#echo "The non-EMC disk controllers are: " $LOCCONTS
#echo "The EMC disk controllers are: " $EMCCONTS
 
# Build list of disk groups (non rootdg)
echo > /tmp/diskfree.dg; vxdisk list | grep ^$EMCPRIM | awk '{print $4}' | sort -u | grep -v "-" > /tmp/diskfree.dg
echo > /tmp/diskfree.unalloc; vxdisk list | grep ^$EMCPRIM | sort -u | grep "-" | grep -v "d0" | awk '{print $1}' > /tmp/diskfree.unalloc
 
DGfree()
{
for DG in `cat /tmp/diskfree.dg`
do
	echo "Disk group $DG:"
	if [ `vxdisk list | grep $DG | grep $EMCPRIM | wc -l` -gt "0" ]
	then
		ASSIGNED=0
		for VAL in `vxprint -g $DG | grep ^dm | grep $EMCPRIM| awk '{print $5/2048}' | tr . Q | sed -e 's/Q.*//'`
		do
			ASSIGNED=`expr $ASSIGNED + $VAL`
		done
		echo "Total assigned EMC disk space: $ASSIGNED MB."
	else
		echo "No EMC disks assigned to disk group $DG!"
	fi
	if [ `vxdg -g $DG -q free | grep $EMCPRIM | wc -l` -gt "0" ] 
	then
		#echo "Total free space per EMC disk: "
		#vxdg -g $DG free | grep $EMCPRIM | /usr/bin/nawk '{print  $3 "\t" $5/2048 " MB"}'
		for TAG in `vxdg -g $DG free | grep $EMCPRIM | /usr/bin/awk '{print $1}' | sort -u`
		do
			FREE=0
			for VAL in `vxdg -q free $TAG | /usr/bin/nawk '{print $6/2048}' | tr . Q | sed -e 's/Q.*//'`
			do
				VAL=`echo $VAL | tr . Q | sed -e 's/Q.*//'`
				FREE=`expr $FREE + $VAL`
			done
			DISK=`vxdg -q free $TAG | awk '{print $4}' | sort -u`
			echo "EMC disk $DISK has $FREE MB in free space."	
		done
	else
		echo "No more free space for disk group $DG!"
	fi 
	if [ `vxdisk list | grep $DG | grep $EMCPRIM | wc -l` -gt "0" ]
	then
		for VOL in `vxprint -g $DG | grep ^v | grep -v swap | awk '{print $2}'`
		do
			MOUNT=`mount | grep $DG | grep "\/$VOL " | awk '{print $1}'`
			if [ $MOUNT != "" ]
			then
				FREE=`df -k $MOUNT | grep -v Filesystem | awk '{print $4/1024}' | tr . Q | sed -e 's/Q.*//'`
				PRCNT=`df -k $MOUNT | grep -v Filesystem | awk '{print $5}'`
				echo "Filesystem $MOUNT has $FREE MB of free disk space ($PRCNT full)."
			fi
		done
	else
		echo "No EMC disks assigned to disk group $DG!"
	fi
	echo ""
done
}


NOfree()
{
	if [ `wc -l /tmp/diskfree.unalloc | awk '{print $1}'` -gt "0" ]
	then
		for DISK in `cat /tmp/diskfree.unalloc`
		do
			echo "$DISK is unallocated or uninitialized and available."	
		done
		echo ""
	else
		echo "No unallocated or uninitialized EMC disks available!"
		echo ""
	fi
}

RESTRICT()
{
	DATE=`date '+%d-%m-%y'`
	PLAT="Sun"
	NAME=`hostname`
	ASGN=0
	USED=0
	FREE=0
	UNALLOC=0

	# If there are no EMC disks assigned to this server ASSGN, USED and FREE will all 
	# remain zero after the following if-loop.
	if [ `vxdisk list | grep $EMCPRIM | wc -l` -gt "0" ]
        then
                for VAL in `vxprint | grep ^dm | grep $EMCPRIM| awk '{print $5/2048}'| tr . Q | sed -e 's/Q.*//'`
                do
                        ASGN=`expr $ASGN + $VAL`
                done
        fi   

	# Determining total free space.
	# If no free space is left, USED and FREE will remain zero.
	if [ `vxdg -q free | grep $EMCPRIM | wc -l` -gt "0" ]
        then
                        for VAL in `vxdg -q free | grep $EMCPRIM |  /usr/bin/nawk '{print $6/2048}' | tr . Q | sed -e 's/Q.*//'`
                        do
                                FREE=`expr $FREE + $VAL`
                        done
        fi 
	USED=`expr $ASGN - $FREE`
	ASGN=`echo $ASGN|/usr/bin/nawk '{print $1/1024}'`
        USED=`echo $USED|/usr/bin/nawk '{print $1/1024}'`
        FREE=`echo $FREE|/usr/bin/nawk '{print $1/1024}'`
	UNALLOC=`wc -l /tmp/diskfree.unalloc|awk '{print $1}'`
	echo "$DATE\t$PLAT\t$NAME\t$ASGN\t$USED\t$FREE\t$UNALLOC"
}


FULL()
{
echo "============================================================================"; echo ""
echo "EMC DISK SPACE USAGE REPORT FOR HOST `hostname`"
echo ""; echo "============================================================================"
echo ""; echo ""
DGfree
NOfree
echo "============================================================================"; echo ""
}


case $1 in
	full)	FULL;;
	*)	RESTRICT;;
esac


# Cleanup stuff
rm /tmp/diskfree.*