Hard disk data recovery

If your hard disk crashes with your important data, you have some hope because of the breakthroughs in the data recovery. There are many causes of data loss, the first one is software related and is easiest to solve. You may accidentally delete an important folder and emptied it to the recycle bin, or formatted the drive by mistake. The second and commonest cause of data loss results from mistakes with the hard disk drive itself. Modern drives are very complex thus many small issues which affect their performance are likely to arise. If you notice your drive is suffering from some form of failure there are few chances you can do something to recover it, unless you seek the services. However, there are some failures that you can attempt to solve on your.

Use of software for data recovery
As long as you are dealing with a software data loss, the first ever thing you can keep in mind is to avoid working with the drive. Each time you connect the drive to a running system and leave it on, you greatly increase the chances of recovering your data. Your operating system writes your hard drive, even if you are not using it. Because your system sees the deleted data as an empty space it will actively overwrite the area, and greatly reduce the chances or recovering the data.

Data recovery with your hardware
You may like to recover the lost data but your machine does not detect the disk, you may have to fix some hardware that will facilitate the data recovery process. There are some parts of the hard drive that can fail. We are going to look at them and the symptoms they might exhibit.

The PCB is the green circuit board that is attached to the drive’s board. It is housing for the main controller and a number of other electronic controllers. This interface turns your 0s and 1s from the platter into useful data which your computer can understand.

Your drive usually contains one or more circular platters. They spin at around 5,900-7,200 rps on consumer drives and store data. It’s made of glass or an alloy coated with magnetic layer, and can store at most 4TB data.

The head assembly reads the hard drives’ platters through a series of heads, which can read and write data. During operation the heads are not in contact with the platters’ surface. They fly nanometers above the disk’s surface which read and write the data. The drive experiences a crash when the heads can no longer fly over the platters, but touch the platter’s surface and destroy the data at some thousands revolutions per minute.

The drive’s hardware runs its own operating system, thereby, dealing with the data operations that are needed to access it. Most firmware is stored on the PCB that is necessary to start the drive. If firmware goes wrong it can prevent you from accessing data. A hard drive requires special and complex modules and parameters.

If the drive doesn’t spin at all
If your disk does not spin at all, this does not mean you cannot recover your data. However, to recover your data you need to put some time and effort. If the drive does not respond at all when you power it on, or makes no noises at all then there is a very probability that it’s a PCB. If your drive is older you may find a matching PCB from another matching drive, swap, and voila. However, the newer disks are made with current technologies and architectures in which the drive contains a microcode that is unique to the drive to which it’s attached. You can try simply swapping the PCB that works almost similar to the ones you were using for the drive. Make sure next time to obtain a high quality hard disk drive for your computer to avoid many hassles related to drive failure.

The drive spins and makes clicking noises
This indicates serious failure and is indicative of a failed head or heads. It could as well mean that your drive suffers from platter damage if at all a head is damaged. This job only requires expatriate handling and needs only to be opened in a lab environment. If you have a clicking drive, the best thing to do is keep the disk off a running machine and seek technical advice.

Drives and is detected but hangs on trying to access it
This implies the magnetic media is degraded. Basically, there are so many sectors that the drive is trying to access but is failing and hanging. This is a common problem that can be worked round using professional data handling equipment.

Drive makes beeping sound on lighting it up
If you hear beeping sound when you power on your computer, there are two serious mechanical failures. Either the heads of your drive park have failed, or the motor spindle has been seized.
Drives sounds normal but cannot be detected, or is detected as wrong capacity

This indicates there is some issue with part of your hardware, probably it’s not being read properly by the heads or some parts are corrupted and cannot be resolved.

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