Hard disk is a permanent storage device for storing
electronic data on a magnetic surface. Hard disk was
invented by Reynold Johnson which was capable of storing
five million characters. Now-a-days hard disk capacity
has increased tremendously with storage capacity of
1 Terabytes. As storage capacity has increased so chances
of losing such a huge amount of data form the hard disk.
Hard disk failure can when there is a break down
of the hard drive (termed as physical failure of the
hard disk) and data stored on the disk cannot be accessed.
There are various kind of failure which our hard disk
suffer the most common is “Head Crash”.
Head of the drive is an important component which
is used to read and write the information from the
hard disk. Head just moves over platter only at a
distance of micrometer. Any sort of collision results
in severe data loss. If we try to do the recovery
by our own can result in further damage of the data.
There are numerous factors which causes hard disk
failure. The most common are power
surges, voltage fluctuations, electronic malfunction,
physical shock, wear and tear, corrosion, exposure
to high magnetic waves, sharp impact, high temperature
exposure etc. Hard disk failure is increasing higher,
as to increase the speed or read/write operation we
are rotating the hard drive with great speed. If any
thing goes wrong with the normal operation of hard
disk causes severe damage.
There are several techniques used by data recovery
experts to recover the data from the failed hard disk.
It is done by moving the hard disk to working system.
Hard disk is open to replace the parts like head of
the drive, arm and chips and sometimes change of platter
is also done to make it working such that data recovery
can be done on failed hard disk.
Hard disk recovery requires clean and dust free environment
such as Class 100 Clean Room
Apart from the physical failure of the drive, if
our hard disk has suffered a logical crash then in
this case data recovery software is helpful. Logical
crash can be termed as inability to access the data
from hard drive or data lost due to accidental format,
viruses or software malfunction or even sabotage.
In case of recovery of data from severely damaged
hard disk you should consult data Recovery Company
for saving your important data which is trapped inside
the failed hard disk.
