>Bad Sector on Hard Disk

By | February 11, 2011

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Modern disk map bad sector to good sector to avoid any sort of error due to bad sector. If a large number of sector mapped to another sectors that means disk is going to fail
 smartctl command is very helpful command to diagnose disk related problems

To instruct for selftest , we can issue following command
 root# smartctl -l selftest /dev/sda

To get attributes list you can use following command
 root#smartctl -A /dev/sda

The output of above command is self explanatory and help you to recognize if there is any problem on hard disk.

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