6 my $drive = $ARGV[0] || die "usage: $0 /dev/sda\n";
8 my $rewrite_sectors = 16;
14 my $cmd = "smartctl -t select,$sector-max $drive";
21 open(my $fh, '-|', "smartctl -l selective $drive");
25 if ( m/Completed_read_failure.*\((\d+)-\d+\)/ ) {
27 print "rewrite sector: $sector\n";
28 foreach my $s ( $sector .. $sector + $rewrite_sectors ) {
29 system "hdparm --write-sector $s --yes-i-know-what-i-am-doing $drive";
33 } elsif ( m/Self_test_in_progress/ ) {
35 } elsif ( m/Not_testing/ ) {
36 return 1 if $test_started;
37 smart_test 0; # first-time invocation
44 warn "# sleep $delay s\n";