#!/usr/bin/perl
use strict;
use warnings;
no warnings 'uninitialized';

use Data::Dumper;
use Tie::File;

my $base = $ARGV[0];

open(FILE, $base) || die "Unable to locate file: $!\n";

my (@searray,@flarray);
tie(@flarray, 'Tie::File',$base);
while(<FILE>) {
   my ($start,$end);
   chomp;
   if($_ =~ /-El\s+vg/../vgserial_id/) {
      $start = (split /\s+/,$_)[3] if($_ =~/-El/);
      $end = (split /\s+/, $_)[1] if($_ =~/vgserial_id/);
   }

   if(defined $start) { push(@searray, $start); } else { $start = ''; }
   if(defined $end) { push(@searray, $end); } else { $end = ''; }
}

my %hash_ref = @searray;
#print Dumper \%hash_ref;

foreach my $hkey(keys %hash_ref) {
   my $hvalue = $hash_ref{$hkey};
   my $count = 0;

   for (my $i = 0; $i < @flarray; $i++) {
      next unless $flarray[$i] =~ /$hvalue/;
      next if($flarray[$i] =~ /vgserial_id/);

      my ($mc,$lvsip) = (($i-1),($i-5));
      my $mount = (split /\s+/, $flarray[$mc])[1];
      my $lvnam = (split /\s+/, $flarray[$lvsip])[3];

      next if($mount =~ /None/);
      print "$i: VG: $hkey : MOUNT: $mount : LV_name: $lvnam : SIZE: $size\n";
   }
}