Modern hard disks use actuators for head positioning, some special codes are written on each track during factory production (using the STW – Servo Track Writers– machines) this give to the actuator a feedback about exact position of heads and the possibility to perform embedded diagnostic code.
Read more about Servo Techniques and Operation


Data recovery Salon welcomes your comments and share with us your ideas, suggestions and experience. Data recovery salon is dedicated in sharing the most useful data recovery information with our users and only if you are good at data recovery or related knowledge, please kindly drop us an email and we will publish your article here. We need to make data recovery Salon to be the most professional and free data recovery E-book online.