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Check the SMART health status of a disk

harmless rootSystem and hardwaredebian, ubuntu
Adjust the values, the command updates live
root@server
smartctl -H /dev/sda

Shows the overall verdict of the drive’s self-assessment: PASSED means no threshold has been exceeded, FAILED means the drive itself expects to fail soon. lsblk lists the device names.

Note: PASSED is no guarantee; the individual values from smartctl -A are more meaningful. Behind hardware RAID controllers, the -d option is required, for example -d megaraid,0. Package: apt install smartmontools.

Also searched as

  • is my hard drive failing
  • check smart status
  • show ssd health linux

Related one-liners

All in System and hardware

Show SMART attributes of a disk

#smartctl -A /dev/sda
harmlessSystem and hardware

Start a SMART short self-test on a disk

#smartctl -t short /dev/sda
harmlessSystem and hardware

Check health and wear of an NVMe SSD

#nvme smart-log /dev/nvme0
harmlessSystem and hardware

Show details of a software RAID array

#mdadm --detail /dev/md0
harmlessSystem and hardware

Show software RAID (mdadm) status

$cat /proc/mdstat
harmlessSystem and hardware

List disks and partitions

$lsblk -o NAME,SIZE,TYPE,FSTYPE,MOUNTPOINT,UUID
harmlessFilesystem

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