How to Detect Bad Sectors or Bad Blocks on Linux Hard Drives

How to Detect Bad Sectors or Bad Blocks on Linux Hard Drives

Let’s start by defining a bad sector/bad block, it is a section on a disk drive or flash memory that can no longer be read from or written to, which usually happens due to permanent physical damage on the disk surface or failing flash memory transistors. As more bad sectors build up, they can seriously impact your storage device’s performance, reduce its capacity, or even lead to complete hardware failure. It is also important to note that the p…