Data Recovery Chennai
Get a Quote!
Phone No:
E-mail :
Your Message
Enter Code
Get a Quote!
Data Recovery Services Chennai

Hard Disk Failure

Hard Disk Failure Explained

Dropped hard driveThis section deals with the most common causes of hard disk drive (HDD) failure, the symptoms you might notice, and the steps you might take to recover your data. You may read more about how we restore inaccessible data in our data recovery process section.

There are many potential reasons for data to become inaccessible, and many different possible symptoms; the most common of which are listed here.

If your device is experiencing any of the following problems, simply click on the relevant link and jump to the appropriate section of this page where you will find out more about the likely underlying causes of the problem and the steps that will be required to restore your data.

Whilst he above list covers the majority of common symptoms of data loss, it’s by no means an exhaustive list. If you are unable to access your files, but have different symptoms, then please contact us without delay for a free diagnosis and we’ll do what we can to reunite you with your data as fast as possible.


Mechanical (or Physical) Failure

Mechanical hard disk failures are caused by physical damage to internal components of the hard disk itself; e.g. the read/write head, motor, logic or printed circuit board (PCB), hard disk platters, cam/actuator arm.

Broken hard driveThe most common solution to recovering data from a physically damaged hard disk is to identify and replace the damaged components. This should only ever be attempted in a certified ‘clean room’ environment, as the alternative is to risk the introduction of dust particles into the disk.

If these get stuck between the read/write head and the platter, they are likely to cause head crashes that damage the platter and make subsequent data recovery impossible.

Please click on the following link to find out more about Data Recovery Raminfotech’s state-of-the-art clean room facilities.



Logical Errors

Logical hard disk failures typically relate to errors with the file system, severely corrupted data, or invalid entries in a file allocation table (FAT). In each of the above cases, the data still exists, but is temporarily unreadable.

If you can hear the disk spinning, but still can’t read any good data or information from the drive, then it’s extremely likely that the hard drive is suffering from a logical problem.

Generally, logical issues tend to result from a failed re-partition, formatting, or Fdisking of the hard drive, or through the incorrect use of a ‘ghosting’ or imaging programme. Running disk checking / repair software (e.g. Sandisk, Chkdsk, Fsck) after a computer has shut down incorrectly can also lead to issues, as the software may look to repair non-existent filesystem errors.

Solutions to logical problems, include repairing the filesystem, master boot record or partition table, or using data recovery software to repair corrupted data.

Whatever, the cause of your issue, we recommend discussing your options with a data recovery specialist before proceeding. The wrong choice at this stage can often make matters considerably worse, making it impossible to recover data that should still be accessible.

At Data Recovery Raminfotech, we offer a free initial assessment of your options by phone or email – so get in touch today and start the process to recovering your data as soon as possible.

Electronic Failure

Electronic failures typically occur when an electronic surge or power spike knocks out the disk’s controller board; thereby preventing the hard disk from spinning up and making it impossible for the computer to recognise it.

In this scenario, your data should be 100% recoverable if the controller board is replaced by an experienced data recovery specialist in the right laboratory conditions.

Please contact us today for a free diagnosis and assessment of the full cost of reuniting you with your all-important data.

Firmware Corruption

The software that controls the physical drive hardware is called firmware. If it is corrupted, or becomes unreadable for any reason, then the computer can often not interact correctly with the hard drive.

Addressing firmware issues is a specialist data recovery job that requires the hard drive to be reprogrammed.

The Data Recovery Raminfotech is home to experts in this area, who have access to specialist equipment that allows us to maximise the likelihood of a successful recovery from this kind of problem. Please contact us today with a free diagnosis and assessment of what it would cost to reunite you with your data.

Accidental deletion

In most hard disk drives, “deleted” files are not actually deleted immediately. Rather the space they occupy is allocated for overwriting at some point in the future, and all references to them in the directory structure are removed. In this instance, the files can still be recovered if the appropriate action is taken before new files are created that overwrite the files in question.

Raminfotech Data Recovery   has helped thousands of clients recover data from exactly this scenario, so please contact us today for a free assessment. Or request a free on-line quote using the form to the right. Alternatively if you are looking for a location near you please visit our locations page



Recovering Data from a Hard Disk Drive

What ever has happened to your hard drive, the recovery process we use is data-safe. Where possibly, we will always create a clone of the media before attempting recovery, this way it is always possible for us to return the drive in the same state as we received it. All work is carried out in-house and we have a Class 100 clean air environment for all work where the drive has to be opened. Most manufacturers will honour any remaining warranty should we need to open a drive.

With modern hard disks recovering data has become a more technical challenge than earlier models. The failure modes though have not changed and remain as follows

  • Logical Problems on Hard Disk
    Deleted files, formatted drives, virus damaged. These may seem simple problems and indeed the process for recovery is straightforward, however regaining access can be difficult, especially on some modern systems such as EXT, HFS+, encrypted files, etc.
  • Hard Disk Firmware Problems
    Hard disk drives contain an area that is not accessible by the user. In this area the manufacturer stores information that is required to make the drive function at it's best. Typically the firmware is stored as 'modules' for example, SMART module or defect mapping and translator, adaptive parameters and a whole range of tables and modules all designed to keep your drive running at optimum performance. However, when a module becomes corrupt, or develops a bad sector the drive will behave erratically or not even start up at all.
  • Electronics Problems on Hard Disks
    On the back of a hard disk is the electronics board and is basically a mini computer in its own right. If this fails, then the hard drive can show a range of symptoms from a completely dead hard drive to clicking noises. It is not normally possible to swap over an electronic circuit board from another drive as modern drives thend to have a circuit board that is fine tuned at the factory to a specific drive and will contain unique adaptive parameters that means a PCB swap may not work.
  • Hard Disk Read/Write Heads
    In order for a drive to read and write data Giant Magneto Resistive (GMR) heads are used these are attached to an internal electronics assembly - the head preamplifier circuit. When this circuit fails then the heads are unable to read the data on the drive correctly, and the most common symptom is the heads clicking as the drive searches for the servo. The only method of repair is to replace the entire head stack assembly.

    Also, when the physical heads fail they can cause damage to platters - this is a more serious problem.

  • Hard Disk Motor Problems
    The most common problems with hard disk motors are worn bearings resulting with loud rattling noises or a completely seized motor. Both these problems require a complete stripdown of the drive including removal of platters, heads and all other internal components and either replacing the motor assembly or transferring the platters to a good shell.

    Where there is more than a single platter involved, then vertical alignment is critical - if this alignment is lost, then it would be extremely difficult if not impossible to re-align. Even a few years ago, a recovery of this type would not have been attempted by other companies, however we have researched this aspect of data recovery exhaustively and have had special fixtures made that enable us to maintain this alignment and have completed hundreds of platter swaps over the years.

For internal examination and work we have our own Class 100 clean air systems that are used for data recovery. For more information please contact us on 9841814405 or through our contact page linked