#!/usr/bin/perl
use strict;
my $debug = 0;
my $limit=10;
my (@time,@disk,@rrqm_s,@wrqm_s,@r_s,@w_s,@rsec_s,@wsec_s,@avgrq_sz,@avgqu_sz,@await,@svctm,@util);
my ($time,$disk,$rrqm_s,$wrqm_s,$r_s,$w_s,$rsec_s,$wsec_s,$avgrq_sz,$avgqu_sz,$await,$svctm,$util);
foreach( 0 .. $limit )
{
      open( IOSTAT, "iostat -d -t  -x /dev/sda |")|| die ;
      while ( <IOSTAT> )
     {
       if ( /Time:(.*)/ )
       {
          $time="$1";
       }
       elsif( /sda/ )
       {
          #if ($debug == 1 ){ print ("$_"); }
          ($disk,$rrqm_s,$wrqm_s,$r_s,$w_s,$rsec_s,$wsec_s,$avgrq_sz,$avgqu_sz,$await,$svctm,$util)=split(/\s+/, $_);
       } 
     }
     close(IOSTAT);


     # Pack the data into arrays
     push( @time,    $time    );
     push( @disk,    $disk    );
     push( @rrqm_s,  $rrqm_s  );
     push( @wrqm_s,  $wrqm_s  );
     push( @r_s,     $r_s     );
     push( @w_s,     $w_s     );
     push( @rsec_s,  $rsec_s  );
     push( @wsec_s,  $wsec_s  );
     push( @avgrq_sz,$avgrq_sz);
     push( @avgqu_sz,$avgqu_sz);
     push( @await,   $await   );
     push( @svctm ,  $svctm   );
     push( @util,    $util    );
}

print "Processing Data\n";
foreach( 0 .. $limit ){
         print ("$time: $disk,$rrqm_s,$wrqm_s,$r_s,$w_s,$rsec_s,$wsec_s,$avgrq_sz,$avgqu_sz,$await,$svctm,$util\n");
}