Friday, November 13, 2009

How to Perform Data Recovery For External Hard Drives?

External hard drives offer great security and flexible data storage option by providing mobile backup option. With huge storage capacity, accompanied by excellent data transfer rates, along with the flexibility to easily plug drive into your computer and reasonable prices have dramatically increased their popularity. Though, external hard drives are quite safe as compared to internal drives, they also may fail at some point and cause serious data loss situations. In such critical circumstances, you need to opt for data recovery solutions to get your valuable data back.

However, as the use and popularity of external hard drives increased, large amount of backups and valuable data are stored on them. But the drives are increasingly failing without any apparent reason. Most of such failing hard drives are generally from well-known drive manufacturers and have high storage capacity.

This is widely believed that hard drive MTTF (Mean Time to Failure) and MTBF (Mean Time Between Failure) are two critical measure that helps you to identify the period in which drive would function properly.

To explain the background of MTBF calculationImage via Wikipedia

In fact, these measures of hard drive are vary, depending upon the drive manufacturers.

It also has been observed that the disk failure isn't constant with age and that, evidently a significant onset of wear-out degradation, rather than significant infant mortality effect. The disk failure may also occur due to logical damage to the drive. Such type of damage occurs due to file system corruption, hard drive formatting, virus infection, operating system malfunction, accidental deletion, disk metadata structure corruption and many others.

In case of logical failure, you can easily retrieve your lost data from external hard drive using data recovery software. The applications are specifically designed to methodically scan entire hard drive and extract all of your lost data from it. Data Recovery Software come equipped with self-descriptive user interface to provide ease of use.

The physical failure of external hard drive is generally caused by read/write head crash, spindle motor damage, power outages, disk controller failure, damaged actuator arm and many alike. In such cases, recovery service is required to retrieve lost data.

Data Recovery service is the personalized help offered by recovery professionals to salvage physically damaged hard drives and retrieve lost data from them. The experts work through safe and sterile environment of Clean Rooms using advanced tools and techniques.

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