git.rot13.org Git - sysadmin-cookbook/blob - recepies/smart/smart-test-relocate.pl

   1 #!/usr/bin/perl
   2
   3 use warnings;
   4 use strict;
   5
   6 my $drive = $ARGV[0] || die "usage: $0 /dev/sda\n";
   7 my $delay = 15;
   8 my $rewrite_sectors = 16;
   9
  10 my $test_started = 0;
  11
  12 sub smart_test {
  13         my $sector = shift;
  14         my $cmd = "smartctl -t select,$sector-max $drive";
  15         warn "$cmd\n";
  16         system $cmd;
  17         $test_started = 1;
  18 }
  19
  20 sub smart {
  21         my $cmd = "smartctl -l selective $drive";
  22         warn "$cmd\n";
  23         open(my $fh, '-|', $cmd);
  24         while(<$fh>) {
  25                 chomp;
  26                 print "# $_\n";
  27                 if ( m/Completed_read_failure.*\((\d+)-\d+\)/ ) {
  28                         my $sector = $1;
  29                         print "rewrite sector: $sector\n";
  30                         foreach my $s ( $sector .. $sector + $rewrite_sectors ) {
  31                                 system "hdparm --write-sector $s --yes-i-know-what-i-am-doing $drive";
  32                         }
  33                         smart_test $sector;
  34                         return 1;
  35                 } elsif ( m/Self_test_in_progress/ ) {
  36                         $test_started = 1;
  37                         return 1;
  38                 } elsif ( m/Not_testing/ ) {
  39                         return 1 if $test_started;
  40                         smart_test 0; # first-time invocation
  41                 }
  42         }
  43         return 0;
  44 }
  45
  46 while ( smart ) {
  47         warn "sleep $delay s", ( $test_started ? " smart test running..." : "idle" ), "\n";
  48         sleep $delay;
  49 }