When the hard drive is in action, the read/write heads do not rest on the platters. During operating, the heads ride on a micro-cushion of air that prevents it from making any physical contact with the surface of the platters. When the head of the hard drive begins scratching the platters, it results in loss of information. This is known as clicking. If you try to keeping switching off and booting your computer again and again, you are causing more damage and this can result in permanent data loss. A clicking hard drive is a very serious symptom of hard drive crash and must be taken seriously.
The best thing to do when your hard drive crashes is to switch off the system and not boot it up again. Keep it switched off and let a professional technician deal with it. Sometimes disassembly of the hard drive is required in order to recover data. It depends on the extent of the damage to the hard drive. In clean room environment, the covers and seals are removed from the hard drive so that technicians can work on or replace internal parts while maintaining the warranties.
The technician first begins by identifying the problem and replacing problem causing internal parts like read/write heads, re-writing firmware, performing platter swaps, recalibrating and realigning file structures and restoring as much of the data as possible. Hard drives that click generally go a clean environment room where they are disassembled and the individual components are checked for scratching, scoring, correct calibration, ohm reading and failed chips. ROM chips and firmware is also checking. The spindle motor will be tested for proper rotations, speed, alignment and frozen or damaged bearings. Mechanisms that can identify the damaged are used to test the hard drive for overwriting and damage. Faulty parts are replaced and new firmware is installed. When the hard drive is brought to a ready state, the raw image is created sector by sector. After the imaging process, data is recovered, critical files are checked for damage and integrity and the data is saved to a new physical location like an external hard drive.
Hard Drive Disk Data Recovery
If the hard drive is not suffering from any severe mechanical or electrical failure then it is sent to a cloning room where bit by bit and sector by sector raw images are created. Once an image of the hard drive is obtained, it is read to make sure the files are not corrupt and the critical files and folders are recovered and copied onto a new physical location. Imaging can take anywhere between 2 to 16 hours depending on the extremity of data loss and the size of the hard drive.
Hard drive data recovery depends on the severity of damage and failure. It is best to keep regular backups of important files and folders to avoid complications due to a hard drive crash. Always make sure you handle an external hard drive carefully and do not hit your computer if it hangs – the hard drive just might crash due to the force!
Hard Drive Disk Data Recovery:Hard Drive Disk Data Recovery:
If you find that your hard drive is clicking, the first and foremost thing you must do is shut down your system to prevent further damage. This will reduce the chances of permanent damage and will also reduce the risk of making your data unrecoverable. If the hard drive is clicking, making grinding/scraping or whirring sounds, the BIOS does not recognize and accept the drive; external hard drive, laptop or system or was jarred or dropped; the computer was exposed to water or fire/smoke damage. When a hard drive is exposed to any of these things, it will result in physical and internal damage to the read/write head of the hard drive and/or the platters.
When the hard drive is in action, the read/write heads do not rest on the platters. During operating, the heads ride on a micro-cushion of air that prevents it from making any physical contact with the surface of the platters. When the head of the hard drive begins scratching the platters, it results in loss of information. This is known as clicking. If you try to keeping switching off and booting your computer again and again, you are causing more damage and this can result in permanent data loss. A clicking hard drive is a very serious symptom of hard drive crash and must be taken seriously.
The best thing to do when your hard drive crashes is to switch off the system and not boot it up again. Keep it switched off and let a professional technician deal with it. Sometimes disassembly of the hard drive is required in order to recover data. It depends on the extent of the damage to the hard drive. In clean room environment, the covers and seals are removed from the hard drive so that technicians can work on or replace internal parts while maintaining the warranties.
The technician first begins by identifying the problem and replacing problem causing internal parts like read/write heads, re-writing firmware, performing platter swaps, recalibrating and realigning file structures and restoring as much of the data as possible. Hard drives that click generally go a clean environment room where they are disassembled and the individual components are checked for scratching, scoring, correct calibration, ohm reading and failed chips. ROM chips and firmware is also checking. The spindle motor will be tested for proper rotations, speed, alignment and frozen or damaged bearings. Mechanisms that can identify the damaged are used to test the hard drive for overwriting and damage. Faulty parts are replaced and new firmware is installed. When the hard drive is brought to a ready state, the raw image is created sector by sector. After the imaging process, data is recovered, critical files are checked for damage and integrity and the data is saved to a new physical location like an external hard drive.
Hard Drive Disk Data Recovery
If the hard drive is not suffering from any severe mechanical or electrical failure then it is sent to a cloning room where bit by bit and sector by sector raw images are created. Once an image of the hard drive is obtained, it is read to make sure the files are not corrupt and the critical files and folders are recovered and copied onto a new physical location. Imaging can take anywhere between 2 to 16 hours depending on the extremity of data loss and the size of the hard drive.
Hard drive data recovery depends on the severity of damage and failure. It is best to keep regular backups of important files and folders to avoid complications due to a hard drive crash. Always make sure you handle an external hard drive carefully and do not hit your computer if it hangs – the hard drive just might crash due to the force!
ref:http://www.unirecovery.co.uk
