SMART Monitoring Tools

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Objectives

  • Self-Monitoring, Analysis and Reporting Technology.
  • Logging SMART errors and changes via the SYSLOG interface.
  • Send email warnings if problems are detected.
  • Make HDD enclosure LED blinking.

Descriptions

smartmontools

smartctl controls the Self-Monitoring, Analysis and Reporting Technology (SMART) system built into most ATA/SATA and SCSI/SAS hard drives and solid-state drives. The purpose of SMART is to monitor the reliability of the hard drive and predict drive failures, and to carry out different types of drive self-tests. smartctl also supports some features not related to SMART. This version of smartctl is compatible with ACS-3, ACS-2, ATA8-ACS, ATA/ATAPI-7 and earlier standards (see REFERENCES below).

ledmon

The ledctl is an user space application designed to control LEDs associated with each slot in an enclosure or a drive bay. The LEDs of devices listed in list_of_devices are set to the given pattern pattern_name and all other LEDs are turned off. User must have root privileges to use this application.

Installation

Install SMART monitor tool and set it to start automatically when OS start-up.

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dnf -y install smartmontools
systemctl enable --now ledmon.service

Install LED’s controller tool and set it to start automatically when OS start-up.

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dnf -y install ledmon
systemctl enable --now smartd.service

Configuration

smartmontools

Send Error massege via SMTP

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vim /etc/smartmontools/smartd.conf

# Specify SMTP server and accounds.

Maintenance

Note: Not recommented to use /dev/sdX to specify HDD.

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smartctl --scan
smartctl /dev/sda -i

The following example illustrates how to locate a single block device.

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ledctl locate=/dev/disk/by-id/wwn-0x5000039b0810bcd9

The following example illustrates how to turn Locate LED off for the same block device.

ledctl locate_off=/dev/disk/by-id/wwn-0x5000039b0810bcd9