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Firmware Modern Hard Disk Drives (HDDs) have their own ‘Onboard’ Printed Circuit Board or PCB. This board has its own microprocessor and other components that control all the data storage and retrieval functions, independent of the operation of the PC itself. Like any other processor controlled system, the HDD requires its own ‘software’ to operate, but this is referred to as ‘Firmware’. The firmware is ‘installed’ by the HDD manufacturer and normally remains unchanged (and in fact unchangeable) by the user. The user and in fact the PC are unaware of the operation of the firmware, which operates ‘invisibly’ in the background. The firmware is broken down into different ‘Modules’ which control different functions or hold information needed for the day-to-day operation of the drive. Firmware is sometimes stored in ROM components on the PCB, or sometimes stored in a specially reserved area of the hard disk itself, known as the ‘Service Area’ or sometimes in a combination of the two. The firmware is specific to drive manufacturers, models and series and is also regularly updated and revised by manufacturers. Should any of these modules become lost or corrupted the drive will not function correctly, and this is in fact one of the most common causes of data loss from HDD’s. Only by use of specialist applications, techniques and equipment can the correct version of the firmware be repaired or restored. Computer Science Labs maintain an extensive ‘library’ of firmware which is constantly being updated to reflect the huge range of drives in existence. Computer Science Labs account holders, will have full access to the Firmware Library, a vital resource for successful Data Recovery. To access the firmware library please register as a user and an account manager will contact you to discuss your requirements and provide you with the partner options available. |
