Monitoring S.M.A.R.T. on Linux
Use smartmontools to read the health status of your hard drives directly via the console and set up automated alerts.
1
Install smartmontools
Install the package using your distribution's standard package manager:
Debian / Ubuntu
apt-get update
apt-get install smartmontools
CentOS / AlmaLinux
yum install smartmontools
2
Read S.M.A.R.T. Data
First, identify your drives using lsblk. Then, perform the check (replace /dev/sda with your actual drive):
Retrieve full report
smartctl -a /dev/sda
Overall Assessment
Look for: SMART overall-health self-assessment test result: PASSED.
If the line shows FAILED, the drive's internal logic has already detected a critical defect.
Critical Attributes
- Reallocated_Sector_Ct: Value > 0 means the drive is already using spare sectors.
- Current_Pending_Sector: Unstable sectors waiting to be remapped.
- Offline_Uncorrectable: Critical issues during read/write operations.
3
Email Notifications
Configure the smartd daemon to monitor your drives in the background:
Edit configuration
nano /etc/smartd.conf
Add a line for each drive with your email address:
Entry in smartd.conf
/dev/sda -a -m [email protected]
/dev/sdb -a -m [email protected]
Enable and start the service:
Start service
systemctl enable smartd && systemctl start smartd
Defective Drive Detected?
If smartctl reports errors, we will arrange a free replacement immediately.
Ticket in PowerPanel