#!/bin/ksh

# By: Mark Donaldson - Corporate Express. 
# Updated: Nov 2007

# Run via cron on a server that can see all drives. Rec'd every 15 min.

PATH=$PATH:/usr/openv/volmgr/bin
PROGNAME=`basename $0`
ADDR="MAILADDR AT YOURDOMAIN DOT COM"

DDIR=/var/tmp
DBASE=${PROGNAME}_datafile
DFILE=$DDIR/$DBASE.`date +%m_%d_%Y`
OUTF=$DDIR/$PROGNAME.out

if [ ! -f $DFILE -o -n "$1" ]
then
  # New data collection file. Process previous datafile first
  if [ -n "$1" ]
  then
    lastfile=$1
  else
    lastfile=`ls -tr $DDIR/$DBASE* 2>/dev/null | tail -1`
  fi
  if [ -n "$lastfile" ]
  then
    [ -f $OUTF ] && rm $OUTF
    exec >$OUTF 2>&1
    #Header
    awk 'BEGIN{HR=-1;MN=0;printf("  ")} {if ($2==0) {if ($1!=HR) {HR=$1
                                           if (HR<10) {printf("0%1d",HR)} 
                                             else {printf("%2d",HR)}
                                        } else {printf("-")} 
                           }} END {printf("\n")}' $lastfile 
 
    #Create Graph
    for drive in `awk '{print $2}' $lastfile| sort -nu`
    do
      awk 'BEGIN {HR=0;printf("%2s |",'$drive')} 
           {if ($2=='$drive') {if ($1!=HR) {HR=$1;printf("|%s",$3)} 
                               else {printf("%s",$3)}}}
           END {printf("|\n")}' $lastfile 
    done 

    #Availability Calcs
    GDA=`awk 'BEGIN {sample=0;up=0}
         { sample++ ; if ($3=="-") {up++}}
         END {printf ("%3.1f",up/sample*100)}' $lastfile`

    echo "\n## Drive Availability: ${GDA}%" 
    for drive in `awk '{print $2}' $lastfile| sort -nu`
    do
      awk 'BEGIN {sample=0;up=0}
           {if ($2=='$drive') { sample++ ; if ($3=="-") {up++}}}
           END {printf("Drive %2s = %3d%%\t",'$drive',(up/sample)*100)
                if(('$drive'%4)==3) {printf("\n")}}' $lastfile 
    done  
    
    echo "\n## Report Done" 
    mailx -s "NB Rpt: Drive Graph: `basename $lastfile|cut -f2 -d.`" $ADDR <$OUTF

    if [ -z "$1" ]
    then
      #keep history of input & output files
      [ -f $OUTF.2 ] && mv $OUTF.2 $OUTF.3
      [ -f $OUTF.1 ] && mv $OUTF.1 $OUTF.2
      mv $OUTF  $OUTF.1
      compress $lastfile
      [ -f $lastfile.2.Z ] && mv $lastfile.2.Z $lastfile.3.Z
      [ -f $lastfile.1.Z ] && mv $lastfile.1.Z $lastfile.2.Z
      mv $lastfile.Z   $lastfile.1.Z
    fi
  fi
fi
#add to current datafile
if [ -z "$1" ]
then
  HR=`date +%H`
  vmoprcmd -xd ds | awk '$1~/^[0-9]/ {if ($4~/DOWN/) {print '$HR',$1,"D"} else {
                                   if ($4~/PEND/) {print '$HR',$1,"P"} else {
                                   if ($4~/AVR/)  {print '$HR',$1,"A"} else {
                                   if ($NF=="-")  {print '$HR',$1,"-"} else {
                                   print '$HR',$1,"#"}}}}}' >>$DFILE
fi
exit