Modern disk drives run for years with no problems, but when a disk fails, it's a major disaster. Modern disk drives include a Self-Monitoring, Analysis, and Reporting Technology (SMART) facility to monitor the disk's health so you can replace an ailing drive before a major failure occurs.
Examining disk health
Getting ready
Linux supports interacting with the drives SMART utilities via the smartmontools package. This is installed by default on most distributions. If it's not present, you can install it with your package manager:
apt-get install smartmontools
Alternatively, this command can be used:
yum install smartmontools
