TrueNAS Enterprise
TrueNAS SCALE
TrueNAS CORE
Compare Editions
TrueCommand
Software Status
FreeNAS
Compare Systems
F-Series
M-Series
H-Series
R-Series
Mini Series
Download TrueNAS SCALE
Download TrueNAS CORE
Get TrueNAS Enterprise
Contact an Enterprise SpecialistTrueNAS CORE Nightly Development Documentation
This content follows experimental early release software. Pre-release software is intended for testing purposes only.
Use the Product and Version selectors above to view content specific to a stable software release.
S.M.A.R.T. Screen
1 minute read.
Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) is an industry standard. S.M.A.R.T. performs disk monitoring and testing. It checks drive reliability and predicts hardware failures.
| Name | Description |
|---|---|
| Check Interval | Enter the time in minutes for smartd to wake up and check if any tests are configured to run. |
| Power Mode | Select the power mode from the dropdown list. Options are Never, Sleep, Standby or Idle. S.M.A.R.T. only tests when the Power Mode is Never. |
| Difference | Enter a number of degrees in Celsius. S.M.A.R.T. reports if a drive temperature changes by N degrees Celsius since the last report. |
| Informational | Enter a threshold temperature in Celsius. S.M.A.R.T. sends a message with a LOG_INFO log level if the temperature is above the threshold. |
| Critical | Enter a threshold temperature in Celsius. S.M.A.R.T. sends a message with a LOG_CRIT log level and send an email if the temperature is above the threshold. |