netdata/collectors/python.d.plugin/smartd_log

Storage devices collector

Monitors smartd log files to collect HDD/SSD S.M.A.R.T attributes.

Requirements

• smartmontools

It produces following charts for SCSI devices:

1. Read Error Corrected

2. Read Error Uncorrected

3. Write Error Corrected

4. Write Error Uncorrected

5. Verify Error Corrected

6. Verify Error Uncorrected

7. Temperature

For ATA devices:

1. Read Error Rate

2. Seek Error Rate

3. Soft Read Error Rate

4. Write Error Rate

5. SATA Interface Downshift

6. UDMA CRC Error Count

7. Throughput Performance

8. Seek Time Performance

9. Start/Stop Count

10. Power-On Hours Count

11. Power Cycle Count

12. Unexpected Power Loss

13. Spin-Up Time

14. Spin-up Retries

15. Calibration Retries

16. Temperature

17. Reallocated Sectors Count

18. Reserved Block Count

19. Program Fail Count

20. Erase Fail Count

21. Wear Leveller Worst Case Erase Count

22. Unused Reserved NAND Blocks

23. Reallocation Event Count

24. Current Pending Sector Count

25. Offline Uncorrectable Sector Count

26. Percent Lifetime Used

prerequisite

smartd must be running with -A option to write smartd attribute information to files.

For this you need to set smartd_opts (or SMARTD_ARGS, check smartd.service content) in /etc/default/smartmontools:

# dump smartd attrs info every 600 seconds
smartd_opts="-A /var/log/smartd/ -i 600"

You may need to create the smartd directory before smartd will write to it:

mkdir -p /var/log/smartd

Otherwise, all the smartd .csv files may get written to /var/lib/smartmontools (default location). See also https://linux.die.net/man/8/smartd for more info on the -A --attributelog=PREFIX command.

smartd appends logs at every run. It's strongly recommended to use logrotate for smartd files.

Configuration

Edit the python.d/smartd_log.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata   # Replace this path with your Netdata config directory, if different
sudo ./edit-config python.d/smartd_log.conf

local:
  log_path : '/var/log/smartd/'

If no configuration is given, module will attempt to read log files in /var/log/smartd/ directory.

Troubleshooting

To troubleshoot issues with the smartd_log module, run the python.d.plugin with the debug option enabled. The output will give you the output of the data collection job or error messages on why the collector isn't working.

First, navigate to your plugins directory, usually they are located under /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the setting plugins directory. Once you're in the plugin's directory, switch to the netdata user.

cd /usr/libexec/netdata/plugins.d/
sudo su -s /bin/bash netdata

Now you can manually run the smartd_log module in debug mode:

./python.d.plugin smartd_log debug trace