Data recovery is the process of salvaging data from damaged, failed, corrupted, or inaccessible secondary storage media when it cannot be accessed normally. Many a times the data are being salvaged from storage media such as internal or external hard disk drives, solid-state drives (SSD), USB flash drive, storage tapes, CDs, DVDs, RAID, and other electronics. So we need Hard Disk Recovery.
The question is why we lose data. There are four reasons basically for the lose data:
• Logical Failure:
In this case, there is actually no physical damage to the hard drive or its components. Logical failure occurs when some data in hard disk is inaccessible due to some error or computer virus. In some cases, accidental reformatting, lost partition and corrupted file can also cause logical failure.
• Mechanical Failure:
When a component or any device of hard disk fails, mechanical failure occurs. When this happens, huge data or partial data of the hard drive becomes in accessible.
• Electronics Failure:
Electronic failure occurs when the component fails or the hard disk is supplied with wrong voltage or when there is power fluctuation nearby. In this case, hard disk becomes undetectable or sometimes in accessible.
• Media Degradation:
This situation generally occurs when the hard disk is too old and it develops bad sector or unreadable platters. Media degradation can occur due to physical damage caused by mishandling or virus interference. In this case you need a professional to deal with the damage.
Hard disk recovery is necessary when we lose data due to any of the upper mentioned reasons.
Following are few steps for dead Hard disk recovery:
• Basic Steps
The question is why we lose data. There are four reasons basically for the lose data:
• Logical Failure:
In this case, there is actually no physical damage to the hard drive or its components. Logical failure occurs when some data in hard disk is inaccessible due to some error or computer virus. In some cases, accidental reformatting, lost partition and corrupted file can also cause logical failure.
• Mechanical Failure:
When a component or any device of hard disk fails, mechanical failure occurs. When this happens, huge data or partial data of the hard drive becomes in accessible.
• Electronics Failure:
Electronic failure occurs when the component fails or the hard disk is supplied with wrong voltage or when there is power fluctuation nearby. In this case, hard disk becomes undetectable or sometimes in accessible.
• Media Degradation:
This situation generally occurs when the hard disk is too old and it develops bad sector or unreadable platters. Media degradation can occur due to physical damage caused by mishandling or virus interference. In this case you need a professional to deal with the damage.
Hard disk recovery is necessary when we lose data due to any of the upper mentioned reasons.
Following are few steps for dead Hard disk recovery:
• Basic Steps
- Inspect the hard drive for damage.
- Replace the cable
- If you have a PATA (IDE/EIDE) drive, switch drive pin settings.
- Try other IDs and/or another PCI controller and try again.
- Plug it into an external drive adapter or external drive case
- Connect the drive into another computer and try again
- Try to dislodge the actuators.
- Inspect the drive's controller board carefully to see if it can be removed without exposing the drive's platters.
- Find a sacrificial drive
- Remove the controller board of the failing drive.
- Remove the controller board from the working drive.
- Attach the working board to the failing drive.
- Connect the drive to your computer or device and test
- Rub aluminum foil on the four connectors on the bottom of the failed hard disk near the center
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