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>