#! /usr/bin/perl

use strict ;
use warnings ;

my $prog = substr $0, rindex ( $0, '/' ) + 1 ;
my $Usage = <<USAGE ;
Usage: $prog [-v] [-q] [-d] [-f] controler target
option v : be verbose
option q : be quiet
option d : show debug info
option f : action ; otherwise dry-run
USAGE
sub Usage { die "$_[0]$Usage" ; }
sub Error { die "[error] $prog: $_[0]\n" ; }
sub Warn  { warn "[warn] $prog: $_[0]\n" ; }

# usage: &GetOptions(ARG,ARG,..) defines $opt_ID as 1 or user spec'ed value
# usage: &GetOptions(\%opt,ARG,ARG,..) defines $opt{ID} as 1 or user value
# ARG = 'ID' | 'ID=SPC' | 'ID:SPC' for no-arg, required-arg or optional-arg
# ID  = perl identifier
# SPC = i|f|s for integer, fixedpoint real or string argument

use Getopt::Long ;
Getopt::Long::config ( 'no_ignore_case' ) ;
my %opt = () ; Usage '' unless GetOptions
  ( \%opt, qw(v q d f) ) ;
Usage("Arg count\n") unless @ARGV == 2 ;

my $CONT = shift ;
my $TARG = shift ;

my @CMD =
  ( qw(/opt/dell/srvadmin/bin/omreport storage pdisk)
  , "controller=$CONT"
  ) ;

open CMD, '-|', @CMD or Error "can't popen [@CMD] ($!)" ;
my $cnt = grep /^Status\s+:\s+Ok$/, <CMD> ;
close CMD ;

my $res = $TARG - $cnt ;

if ( $opt{v} )
  { printf "controler $CONT\n" ;
    printf "target    $TARG\n" ;
    printf "found     $cnt\n" ;
    printf "result    $res\n" ;
  }
print "$res\n" ;