When we receive a faulty hard drive, the very first thing we do is to do an evaluation of it. A proper analysis will help determine the correct course of action to recovering as much data from the drive as possible.
As a rule there are 3 general sorts of hard drive failureâ€"logical, electronic and mechanical. Each different type requires explicit information recovery techniques.
Logical Hard Drive Failure
Logical drive mess ups are usually due to file-system corruption. This is going to be due to a virus, accidental erasure of key files or registry parts or electrostatic discharge (ESD). In most situations of logical failure, the data may still be intact on the drive but remain inaccessible. The drive may still be recognised by the system BIOS but it will not boot.
Data recovery in cases of logical drive failure involves scanning of the drive to fix the file system corruption. At times a partition can be repaired and the drive can be restored to the state it was in before the event. If this is not successful, a low-level scan may be performed to search each sector of the drive for the files. Data recovery of logical mess ups is a difficult and time-consuming. An entire day for scanning and another day for recovery is not peculiar.
Electronic Hard Disk Failure
Electronic failure appertains to damage to the electrical parts of the circuit board, fundamentally the brains of the drive. The causes could be defective part, wrong installation, ESD, grounding out the board or damaging circuitry during installation. Poor ventilation and excessive heat are also common causes.
Data recovery with a damaged circuit board needs replacement with the very same circuit board. These repairs require soldering abilities and complicated knowledge of electronics. Similarly, a Clean Room environment is an absolute must as even airborne dust can exacerbate the damage.
Mechanical Hard Disk Failure
Mechanical failures refer to that caused by damages to the drive's internal components. A bearing failure for example can cause exorbitant heat which should expand the drive shaft and seize the shaft motor. This is generally heralded by a loud whining, grinding or screaming noise. A Clicking hard drive is a result of the read/write arm not working, typically a knock can cause this issue
In mechanical hard drive failures, the damaged element or part should be replaced with precisely the same one and fitted by a highly talented engineer in a clean room environment, this is very time intensive thanks to the precision of work required.
As a rule there are 3 general sorts of hard drive failureâ€"logical, electronic and mechanical. Each different type requires explicit information recovery techniques.
Logical Hard Drive Failure
Logical drive mess ups are usually due to file-system corruption. This is going to be due to a virus, accidental erasure of key files or registry parts or electrostatic discharge (ESD). In most situations of logical failure, the data may still be intact on the drive but remain inaccessible. The drive may still be recognised by the system BIOS but it will not boot.
Data recovery in cases of logical drive failure involves scanning of the drive to fix the file system corruption. At times a partition can be repaired and the drive can be restored to the state it was in before the event. If this is not successful, a low-level scan may be performed to search each sector of the drive for the files. Data recovery of logical mess ups is a difficult and time-consuming. An entire day for scanning and another day for recovery is not peculiar.
Electronic Hard Disk Failure
Electronic failure appertains to damage to the electrical parts of the circuit board, fundamentally the brains of the drive. The causes could be defective part, wrong installation, ESD, grounding out the board or damaging circuitry during installation. Poor ventilation and excessive heat are also common causes.
Data recovery with a damaged circuit board needs replacement with the very same circuit board. These repairs require soldering abilities and complicated knowledge of electronics. Similarly, a Clean Room environment is an absolute must as even airborne dust can exacerbate the damage.
Mechanical Hard Disk Failure
Mechanical failures refer to that caused by damages to the drive's internal components. A bearing failure for example can cause exorbitant heat which should expand the drive shaft and seize the shaft motor. This is generally heralded by a loud whining, grinding or screaming noise. A Clicking hard drive is a result of the read/write arm not working, typically a knock can cause this issue
In mechanical hard drive failures, the damaged element or part should be replaced with precisely the same one and fitted by a highly talented engineer in a clean room environment, this is very time intensive thanks to the precision of work required.
About the Author:
Brian Shaw runs a data recovery business called Kingdom Data Recovery Edinburgh who service all of the United Kingdom. He's got many articles on his web site which refer to issues with storage devices and helpful info about stopping data loss.
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