With the large amounts of data generated daily, systems aren’t capable of storing everything. Thus, a backup secondary storage medium is used. However, after the corruption of secondary storage media, recovering data is critical. Secondary storage devices such as hard disk drives, CDs, storage tapes, etc. have high potential risk of losing data as a result of either physical damage or logical damage.
There are innumerate ways which can cause physical damage to storage media. For instance, storage tapes, these are sensitive to scratches and easy to break. Plus, you simply can’t open a hard disk without vacuum. Regular air contains dust particles that can settle on the disk and could be caught between the head and the platter. This results in head crashes, which damage the platter and cause the loss of data.
There is serious lack of know-how in end users about hardware repairing. Thus, data recovery companies make use of the situation and employ costly methods for the recovery of important data.
The recovery of data from physically damaged hardware may require multiple steps. It may also vary according to the type and severity of damage. For example, by replacing some of the parts of your hard disk, some of the damage could be repaired. Therefore, not all your data will be lost. Aside from that, there is a special procedure called disk imaging, which is capable of reading data from the surface of the storage device. However, only the surface data can be recovered in this way.
Despite several measures and the use of backup, ensuring the security of bulk amounts of important data still remains a challenge. However, prevention is likely better than a cure in most instances. Thus, always make sure that you handle your data storage devices with care.
