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 %diskstate = "";
  16 my $debug = 1;
  17 my $status = "unknown";
  18
  19 if ($debug){print "### Reading Diskstats ###\n";}
  20
  21 foreach (@proc){
  22 my @line = split(/ +/,$_);
  23 $diskstatus{$line[3]} =$line[12];
  24 if ($debug){print "Getting device ".$line[3]." with the following value ".$line[12]."\n";}
  25 }
  26
  27 if ($debug){print "### Searching for available Disks ###\n";}
  28
  29 foreach (@devices){
  30 chomp $_;
  31 if ($debug){print "Device ".$_." has ".$diskstatus{$_}." IO Requests.\n";}
  32 $status = `hdparm -C /dev/$_ | tail -1 | cut -d: -f2`;
  33
  34   if ($diskstatus{$_} eq "0" && $status !=~/standby/){
  35     if ($debug){print "Device ".$_." is set to standy.\n";}
  36     system("/sbin/hdparm -y /dev/$_");
  37     system("touch /tmp/hddshutdown-$_");
  38   }
  39   elsif ($diskstatus{$_} ne "0" || $status !=~/standby/){
  40     if ($debug){print "Device ".$_." is active.\n";}
  41     if ( -e "/tmp/hddshutdown-$_" ) { system("unlink /tmp/hddshutdown-$_"); }
  42   }
  43 }
  44
  45 # end