Testing disk with Smart

sudo apt update
sudo apt install smartmontools
chmod +x diskcheck.sh
chmod +x diskverdict.sh
sudo ./diskverdict.sh /dev/sda
sudo ./diskcheck.sh /dev/sda
# or
sudo ./diskcheck.sh /dev/nvme0n1
sudo ./diskverdict.sh /dev/nvme0n1

To check bad blocks

sudo badblocks -sv /dev/sda

Important

Periodic monitoring (recommended)

Run this monthly.

Watch for:

• Reallocated sectors > 0
• Pending sectors > 0
• Offline uncorrectable > 0

Any increase → backup immediately.

If the reallocated count increases, degradation is ongoing:

Any growth → replacement urgency increases.