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Disk-SMART-0.18
River stage zero No dependents
3 ++
/ Disk::SMART

NAME

Disk::SMART - Provides an interface to smartctl to return disk stats and to run tests.

SYNOPSIS

Disk::SMART is an object oriented module that provides an interface to get SMART disk info from a device as well as initiate testing. An exmple script using this module can be found at https://github.com/paultrost/linux-geek/blob/master/sysinfo.pl

    use Disk::SMART;

    my $smart = Disk::SMART->new('/dev/sda', '/dev/sdb');

    my $disk_health = $smart->get_disk_health('/dev/sda');

CONSTRUCTOR

new(DEVICE)

Instantiates the Disk::SMART object

DEVICE - Device identifier of a single SSD / Hard Drive, or a list. If no devices are supplied then it runs get_disk_list() which will return an array of detected sdX and hdX devices.

    my $smart = Disk::SMART->new();
    my $smart = Disk::SMART->new( '/dev/sda', '/dev/sdb' );
    my @disks = $smart->get_disk_list();

Returns Disk::SMART object if smartctl is available and can poll the given device(s).

USER METHODS

get_disk_attributes(DEVICE)

Returns hash of the SMART disk attributes and values

DEVICE - Device identifier of a single SSD / Hard Drive

    my %disk_attributes = $smart->get_disk_attributes('/dev/sda');

get_disk_errors(DEVICE)

Returns scalar of any listed errors

DEVICE - Device identifier of a single SSD/ Hard Drive

    my $disk_errors = $smart->get_disk_errors('/dev/sda');

get_disk_health(DEVICE)

Returns the health of the disk. Output is "PASSED", "FAILED", or "N/A". If the device has positive values for the attributes listed below then the status will output that information.

Eg. "FAILED - Reported_Uncorrectable_Errors = 1"

The attributes are:

5 - Reallocated_Sector_Count

187 - Reported_Uncorrectable_Errors

188 - Command_Timeout

197 - Current_Pending_Sector_Count

198 - Offline_Uncorrectable

If Reported_Uncorrectable_Errors is greater than 0 then the drive should be replaced immediately. This list is taken from a study shown at https://www.backblaze.com/blog/hard-drive-smart-stats/

DEVICE - Device identifier of a single SSD / Hard Drive

    my $disk_health = $smart->get_disk_health('/dev/sda');

get_disk_list

Returns list of detected hda and sda devices. This method can be called manually if unsure what devices are present.

    $smart->get_disk_list;

get_disk_model(DEVICE)

Returns the model of the device. eg. "ST3250410AS".

DEVICE - Device identifier of a single SSD / Hard Drive

    my $disk_model = $smart->get_disk_model('/dev/sda');

get_disk_temp(DEVICE)

Returns an array with the temperature of the device in Celsius and Farenheit, or N/A.

DEVICE - Device identifier of a single SSD / Hard Drive

    my ($temp_c, $temp_f) = $smart->get_disk_temp('/dev/sda');

run_short_test(DEVICE)

Runs the SMART short self test and returns the result.

DEVICE - Device identifier of SSD/ Hard Drive

    $smart->run_short_test('/dev/sda');

update_data(DEVICE)

Updates the SMART output and attributes for each device. Returns undef.

DEVICE - Device identifier of a single SSD / Hard Drive or a list of devices. If none are specified then get_disk_list() is called to detect devices.

    $smart->update_data('/dev/sda');

COMPATIBILITY

  This module should run on any UNIX like OS with Perl 5.10+ and the smartctl progam installed from the smartmontools package.

AUTHOR

 Paul Trost <ptrost@cpan.org>

LICENSE AND COPYRIGHT

 Copyright 2015 by Paul Trost
 This script is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License v2, or at your option any later version.
 <http://gnu.org/licenses/gpl.html>