SMART tools can give you the health status of the drives.
smartctl is a command line utility designed to perform SMART tasks
Make sure S.M.A.R.T. support is enabled in the BIOS.
Getting Hard drive details in Linux
disk free will give you the information about space distribution
Fdisk will show the partitions and file system types
Hard disk parameter will give you model, serial number, capabilities etc
#hdparm -I /dev/sda
Next run following command to see if your hard disks support S.M.A.R.T technology:
# smartctl -i /dev/sda
# smartctl -s on -d ata /dev/sda
Run overall-health self-assessment test:
# smartctl -d ata -H /dev/sda
Start a quick offline test with
#smartctl -t offline /dev/sda
If you get errors on any of the test backup and replace the disk.
Intense short test with
#smartctl -t short /dev/sda
Extended self-test of drive
# smartctl -d ata -t long /dev/sda