src/scripts/hddshutdown

   1 #!/usr/bin/perl
   2 #
   3 # IPFire HDD Shutdown state reader
   4 #
   5 # This code is distributed under the terms of the GPL
   6 #
   7 # 20.08.2007 Maniacikarus - IPFire.org - maniacikarus@ipfire.org
   8 #
   9
  10 # begin
  11
  12 my @proc = `cat /proc/diskstats`;
  13 my @devices = `kudzu -qps -c HD | grep device: | cut -d" " -f2 | sort | uniq`;
  14 my %diskstatus = "";
  15 my $debug = 1;
  16 my $status = "unknown";
  17
  18 if ( @ARGV[0] eq "state" ){
  19 my $hdd = @ARGV[1];
  20 $status = `hdparm -C /dev/$hdd | tail -1 | cut -d: -f2`;
  21
  22 if ( $status=~/standby/){
  23   my $ftime = localtime((stat("/tmp/hddshutdown-$hdd"))[9]);
  24   print"<B>Disk $hdddev status: <font color=#00FF00>standby</font></B> (since $ftime)";
  25   }
  26 else{
  27   print"<B>Disk $hdddev status: <font color=#FF0000>active</font></B>";
  28   }
  29 exit;
  30 }
  31
  32 if ($debug){print "### Reading Diskstats ###\n";}
  33
  34 foreach (@proc){
  35 my @line = split(/ +/,$_);
  36 $diskstatus{$line[3]} =$line[12];
  37 if ($debug){print "Getting device ".$line[3]." with the following value ".$line[12]."\n";}
  38 }
  39
  40 if ($debug){print "### Searching for available Disks ###\n";}
  41
  42 foreach (@devices){
  43 chomp $_;
  44 if ($debug){print "Device ".$_." has ".$diskstatus{$_}." IO Requests.\n";}
  45 $status = `hdparm -C /dev/$_ | tail -1 | cut -d: -f2`;
  46
  47   if ($diskstatus{$_} eq "0" && $status !=~/standby/){
  48     if ($debug){print "Device ".$_." is set to standy.\n";}
  49     system("/sbin/hdparm -y /dev/$_");
  50     system("touch /tmp/hddshutdown-$_");
  51   }
  52   elsif ($diskstatus{$_} ne "0" || $status !=~/standby/){
  53     if ($debug){print "Device ".$_." is active.\n";}
  54     if ( -e "/tmp/hddshutdown-$_" ) { system("unlink /tmp/hddshutdown-$_"); }
  55   }
  56 }
  57 # end