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Linux-AtaSmart-2.0.0
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/ Linux::AtaSmart

NAME

Linux::AtaSmart - XS wrapper around libatasmart

VERSION

version 2.0.0

SYNOPSIS

use v5.10.1;
use Linux::AtaSmart;
use Linux::AtaSmart::Constants qw/:all/;

my $atasmart = Linux::AtaSmart->new('/dev/sda');

if (!$atasmart->smart_is_available) {
    die "Drive not SMART capable";
}

say 'Disk size in bytes: ', $atasmart->get_size;
say 'Awake: ' .  ($atasmart->check_sleep_mode ? 'YES'  : 'NO');
say 'Status: ' . ($atasmart->smart_status     ? 'GOOD' : 'BAD');
say 'Bad Sectors: ' . $atasmart->get_bad;
say 'Temperature °C: ' . $atasmart->get_temperature // "n/a";
say "Power Cycles: " . $atasmart->get_power_cycle // "n/a";
say "Powered On: " . $atasmart->get_power_on->pretty // "n/a";

my $status = $atasmart->get_overall;
if ($status != OVERALL_GOOD) {
    say "STATUS NOT GOOD!";
}

# all of the above and more
$atasmart->dump;

$atasmart->self_test(TEST_SHORT);

DESCRIPTION

This is an XS wrapper around the Linux-only library, libatasmart. To read SMART info from a drive you will need to run as root, or have CAP_RAW_IO (which you will most likely have to set on your perl binary). HAVING GROUP WRITE PERMISSIONS IS NOT ENOUGH!

METHODS

new(disk_device)

Creates a new Linux::AtaSmart object. Requires one argument, a string identifying the disk to examine, e.g. /dev/sda, /dev/disk/by-label/HOME

Will croak if there is any error, or the device does not support SMART.

get_size

Returns the disk capacity in bytes.

check_sleep_mode

Boolean, true if awake, false if sleeping. Reading SMART data will wake up the disk, so check this first if you care.

dump

Prints all the available SMART info for the disk to STDOUT.

smart_status

Boolean, true is GOOD, false is BAD.

get_temperature

Returns current disk temperature in celsius, or undef if not supported.

The C library actually uses millikelvins, complain if you'd prefer that.

get_bad

Returns the number of bad sectors on the disk.

get_overall

Returns an integer corresponding to the overall status of the drive. See Linux::AtaSmart::Constants.

get_power_cycle

Returns number of times the disk has been power cycled.

get_power_on

Returns the total time this disk has been powered-on as a Time::Seconds object. The C library actually uses milliseconds, complain if you'd prefer that.

self_test(TEST_TYPE)

Starts a test of TEST_TYPE. See Linux::AtaSmart::Constants.

ALTERNATIVES

You may already have udisks installed, which you can query via Net::DBus.

INSTALLATION

You will need your system's libatasmart development package installed. On Debian-like systems, this is libatasmart-dev. On Fedora it is libatasmart-devel.

DIFFERENCES FROM THE C API

  • Removed the sk_disk_ and sk_disk_smart_ prefixes for brevity.

  • The SkDisk item is handled inside this module, you don't need to pass it to every method. You should create a new object to examine a different disk.

  • Results are returned directly by the methods, you don't have to pass references to be filled.

  • You don't have to manually call sk_disk_smart_read_data or sk_disk_smart_parse_data. This will be handled automatically by those methods that require it.

ERRORS

All errors will throw exceptions via croak

SEE ALSO

BUGS AND LIMITATIONS

You can make new bug reports, and view existing ones, through the web interface at https://github.com/ioanrogers/Linux-AtaSmart/issues.

AVAILABILITY

The project homepage is http://metacpan.org/release/Linux-AtaSmart/.

The latest version of this module is available from the Comprehensive Perl Archive Network (CPAN). Visit http://www.perl.com/CPAN/ to find a CPAN site near you, or see https://metacpan.org/module/Linux::AtaSmart/.

SOURCE

The development version is on github at http://github.com/ioanrogers/Linux-AtaSmart and may be cloned from git://github.com/ioanrogers/Linux-AtaSmart.git

AUTHOR

Ioan Rogers <ioanr@cpan.org>

COPYRIGHT AND LICENSE

This software is Copyright (c) 2014 by Ioan Rogers.

This is free software, licensed under:

The GNU Lesser General Public License, Version 3, June 2007

DISCLAIMER OF WARRANTY

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.