COMMON REASONS FOR A HARD DRIVE CRASH
There can be many different reasons for a hard drive crash. It
can occur gradually over
time or abruptly. A hard
drive has
the potential to last many years before malfunctioning.
However, as with any mechanical device, a hard drive can
and will eventually wear down.
Sometimes this can happen
sooner than expected.
Physical damage is the leading cause of premature hard drive failure.
When a hard drive
is powered off, most read-write heads park on a special area of the platter that protects
the heads
and platter from damage. When a hard drive is powered on, the
heads are designed to float across the platter
surface. If a hard drive suffers any physical damage during this
time (such as bumping or jostling), it is likely to suffer
a head crash. A head
crash is one of the most common
reasons for drive failure and occurs when the read-write
heads make
contact with the platter surface where the data is stored.
Also located inside
the hard drive is a motor that provides power to the platters and
other
moving parts inside the drive. Over
time, the motor will eventually wear down causing the
parts to move
at incorrect speeds.
Physical Reasons FOR HARD DRIVE FAILURE
A hard drive can fail due to many physical problems including
scratched platters, broken
read/write arm, hard drive motor failed,
humidity or moisture in the drive, manufacturer
defect, firmware
corruption, bad sectors on disk, overheated hard drive,
head crash,
power surge, and water or fire damage to the hard drive.
LOGICAL Reasons FOR HARD DRIVE FAILURE
Logical causes for hard disk failure include failed boot sector,
master boot record failure,
drive not recognized by BIOS,
operating system malfunction, accidentally deleted data,
software
crash, corrupt file system, cross-linked files, employee
sabotage, improper
shutdown, disk repair utilities, reformatted hard
drive, repartitioned hard drive, software
malfunction,
scandisk error, data corruption, and computer virus damaged the hard
disk.
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