check_smart
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Monitoring Plugin to check hard drives, solid state drives and NVMe drives using SMART
check_smart monitoring plugin
Full and up to date documentation
Please go to https://www.claudiokuenzler.com/monitoring-plugins/check_smart.php for a complete and updated documentation including changelog, extensive usage examples, monitoring configurations (including Nagios, Icinga 1, Icinga 2, Shinken and Naemon).
Introduction
This is a plugin to monitor the health and values of SMART attributes of hard (HDD), solid state (SSD) and NVMe drives. The plugin is a fork of check_smart released in 2009 by Kurt Yoder. Since then the plugin has undergone a lot of changes. It allows to monitor drives behind hardware controllers and added a lot of parameters to fine tune the checks and set thresholds (on a per attribute setting).
Sudoers entry
This plugin needs to run as root, otherwise you're not able to lauch smartctl correctly. You have two options
-
Launch the plugin itself as root with sudo
-
Lauch the plugin as Nagios user and the smartctl command as root with sudo
Entry in sudoers (of course adapt your paths if necessary):
nagios ALL = NOPASSWD: /usr/lib/nagios/plugins/check_smart.pl # for option 1
nagios ALL = NOPASSWD: /usr/local/sbin/smartctl # for option 2
Successful tests/examples
SATA disk behind MDRaid (Software Raid) on Linux:
/usr/lib/nagios/plugins/check_smart.pl -d /dev/sda -i ata
MegaRAID on Linux:
/usr/lib/nagios/plugins/check_smart.pl -d /dev/sda -i megaraid,8
Intel RAID on FreeBSD 9.2 ("kldload mfip.ko" required):
/usr/local/libexec/nagios/check_smart.pl -d /dev/pass0 -i scsi
SATA drives behind Intel RAID on FreeBSD 9.2 ("kldload mfip.ko" required):
/usr/local/libexec/nagios/check_smart.pl -d /dev/pass12 -i sat
SCSI drives behind HP RAID (CCISS) on FreeBSD 6.0:
/usr/local/libexec/nagios/check_smart.pl -d /dev/ciss0 -i cciss,0
OK: no SMART errors detected|defect_list=0 sent_blocks=3093462752 temperature=24;;68
/usr/local/libexec/nagios/check_smart.pl -d /dev/ciss0 -i cciss,3
WARNING: 48 Elements in grown defect list | defect_list=48 sent_blocks=1137657348 temperature=22;;68
Using threshold option (-b) to ignore 1 bad element, warning only when 2 bad elements are found:
/usr/local/libexec/nagios/check_smart.pl -d /dev/ciss0 -i cciss,1 -b 2
OK: 1 Elements in grown defect list (but less than threshold 2)|defect_list=1;2;2;; sent_blocks=2769458900762624 temperature=27;;65
SCSI drives behind HP RAID (CCISS) on Linux (Ubuntu hardy):
/usr/lib/nagios/plugins/check_smart.pl -d /dev/cciss/c0d0 -i cciss,0
OK: no SMART errors detected. |
Check all SATA disks (sda - sdz) at the same time on Linux:
/usr/lib/nagios/plugins/check_smart.pl -g "/dev/sd[a-z]" -i ata
OK: [/dev/sda] - Device is clean --- [/dev/sdb] - Device is clean|
Check all SCSI disks behind Intel RAID on FreeBSD 9.2 ("kldload mfip.ko" required):
/usr/local/libexec/nagios/check_smart.pl -g /dev/pass[1-9] -i scsi
OK: [/dev/pass0] - Device is clean --- [/dev/pass1] - Device is clean --- [/dev/pass2] - Device is clean --- [/dev/pass3] - Device is clean --- [/dev/pass4] - Device is clean --- [/dev/pass5] - Device is clean --- [/dev/pass6] - Device is clean --- [/dev/pass7] - Device is clean --- [/dev/pass8] - Device is clean --- [/dev/pass9] - Device is clean |
Single SCSI drive on FreeBSD 10.1:
/usr/local/libexec/nagios/check_smart.pl -d /dev/da0 -i scsi
OK: no SMART errors detected. |sent_blocks=14067306 temperature=34;;60
see https://www.claudiokuenzler.com/monitoring-plugins/check_smart.php for more examples
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