datadog-smartd 0.1.1

The smartd check

smartd

Overview

This integration monitors S.M.A.R.T. disk health by reading state files written by the smartd daemon (part of smartmontools). It collects key disk health attributes such as temperature, reallocated sectors, power-on hours, and pending sector counts, and reports the overall health status of each drive as a service check.

Unlike other approaches that shell out to smartctl (which requires root privileges), this integration reads the state files that smartd already maintains, making it work without any privilege escalation.

Setup

Prerequisites

• The smartd daemon must be running and writing state files (default location: /var/lib/smartmontools/).
• The dd-agent user must have read access to the state files (they are typically world-readable with 644 permissions).

Installation

For development, install the check in the Datadog Agent's Python environment:

datadog-agent integration install -e /path/to/smartd

For production, copy the check file and configuration:

cp datadog_checks/smartd/check.py /etc/datadog-agent/checks.d/smartd.py
mkdir -p /etc/datadog-agent/conf.d/smartd.d
cp datadog_checks/smartd/data/conf.yaml.example /etc/datadog-agent/conf.d/smartd.d/conf.yaml

Configuration

Edit /etc/datadog-agent/conf.d/smartd.d/conf.yaml to configure the check:

init_config:

instances:
  - smartd_state_dir: /var/lib/smartmontools
    min_collection_interval: 120

Then restart the Agent.

Validation

Run the Agent's status subcommand and look for smartd under the Checks section:

datadog-agent status

Or run the check directly:

datadog-agent check smartd

Data Collected

Metrics

See metadata.csv for a list of metrics provided by this integration.

Service Checks

smartd.disk_health: Returns OK if the drive is healthy, WARNING if reallocated sectors, pending sectors, or offline uncorrectable counts are non-zero, CRITICAL if a normalized attribute value reaches 0.

smartd.can_read: Returns OK if smartd state files were found and parsed successfully, CRITICAL otherwise.

Events

The smartd integration does not include any events.

Support

For help, open an issue on the GitHub repository.