How data is stored on a hard drive

เขียนโดย mamiya | 21:30


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When a file is stored on a computer, the data on your hard disk magnetic coating is stored. This magnetic coating on the plates is the "glue" that your data is stored. Any damage to that magnetic coating means that there is no loss of data, as each piece of film coating contains the missing data. This plate is missing a bit 'that the coating has a better chance of a full recovery of data to increase compared to a flat, large amounts of magnetic coating removed or haddestroyed.

Hard Drive Failure Parts

Typical hard disk components include:

The plate surface Platters or spindle is rotated by an electric motor. The speed of this rotation is measured in revolutions per minute (rpm), the better the performance of the hard disk ... The higher the speed is increased, the reading and writing data to disk. Every surface in contact with thePlates can cause serious damage to the magnetic stripe containing the data. These include dust, fingerprints, water, and most important of all, the heads of the hard disk. Platter damage is causing the worst kind of damage on the failure of the hard disk.

Heads (Head Crash) When the disk is not actively used, the heads need to disk to read or write data once parked. And 'when this headmoves outside the super thin cushion between the plates, that the head touches the causes of crashes and the hard drive.

Firmware is the program instructions located on the chip on the printed circuit board (PCB). Each version of firmware is specific to the type of hard drive and any hard drive can be attached to dozens of versions of the firmware, go to the respective manufacturer of the hard s to increase performance. Theold hard drive, the more difficult it will be able to find a working firmware for that drive model.

Printed Circuit Board (PCB) The PCB of the hard drive is the drive electronics drive, manage and operate the hard drive. When a circuit is often replaced with a damaged PCB is identical with the same firmware on the original disc. Usually the damage is PCBWater or fire, but there are other reasons why an error of PCBs. And many times not PCB affect other aspects like firmware or heads.

Types of Hard Drive Failure

In general, if a disk fails, it is one of the following causes:

Media Failure Otherwise known as crash test (as described above), have their heads touched the hard disk physically damaged and the magnetic coatingon the turntable.

In general, any mechanical failure of electronic defects on the disc falls into this category. Fire, water, electrical damage would require the hard drive "spare parts".

PCB Failure As described above, PCB failure falls in the nature and breakdown of the rule can be "outsourced" for an identical PCB for that type of disc. Along with the correct firmware forthe hard drive, a PCB replacement can repair a kind of hard disk drive when the disk is an old model.

Logical Drive Failure This type of hard disk failure is usually the least damaging to the data. This type of error often means that the operating system of the computer (or utilities) can see the disk marked as unallocated space, but because theComputer MFT is corrupted or damaged, you can not read the data. Disk errors of this kind is destructive and the chances of successful data recovery are very complete.

Types of non-mechanical Hard Drive Failure

Other causes of data loss and why data recovery would be required could include the following:

Natural disasters and extreme weather events, the outside of our control a bad dayworse. If you're the computer was lost in water from a river, or burnt by fire near a lightning strike, there is still a chance to recover data from your hard drive.

The Human Factor accidentally deleted files, formatting the hard drive wrong, and the attempt to update the operating system alone does not have common problems that arise. Furthermore, as careful as most people use their laptops, a small dropthe couch on the floor or down a flight of stairs is the kind of agitation on the disk that could cause serious damage to the hard drive platters violent.

E-mail viruses are usually the most viruses are spread from computer to computer. In addition, questionable sites, scripts, visit the malware or spyware waiting to hug your system and data are put in danger. We recommend running the latest anti-virusProtect data to reduce this type of data loss and the need to require a data recovery service.

How do you protect yourself against data loss? Back it up! However, it should still require data recovery, you need a company that specializes in using the Hard Drive Data Recovery.

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