How the data is stored on the hard disk

January 16, 2017 | By 456@dmin | Filed in: Uncategorized.

When you save a file on your computer, storing data on the hard disk platter & # 39; s magnetic coating. This magnetic coating bowls & # 39; Adhesive & # 39; to retain the data. Any damage to the magnetic coating means that the loss of data, because each piece of data included in the coating is missing. So a dish lacks a little to paint a better chance of success against the backup in a bowl that was not a large amount, the removal or destruction of the magnetic coating.

hard drive error components

Typical hard items that are not included

Platters Hard disk platters or spindle is rotated an electric motor. The speed of this rotation measured in revolutions per minute (RPM) and the higher the performance of the hard drive … the higher the speed, which increases the read and write access to the bowls. Any contact with the surface of the platters can cause serious damage to the magnetic stripe containing the data. This includes dust, fingerprints, water, and most importantly, the head of the hard drive. Platter damage caused by the most serious damage to hard drive failure.

Heads (Head Crash) If the hard drive disc is not in active use, the heads are parked until the hard drive you need to read or write the data again. This is when the head is moved outside of bowls between the super-thin cushion of air that causes the head to crash and touches the hard drive platter.

Firmware Firmware program instructions located The chips on the printed circuit board (PCB). typical revision of the firmware for all types of hard drives and each hard drive can go through dozens of firmware changes to increase that particular manufacturer & # 39; s hard drive & # 39; s performance. The older the hard drive, the more difficult it can be to find a working firmware for the specific hard drive model.

Printed Circuit Board (PCB) The PCB a hard drive electronics hard drive, which manages and operates the hard disk. If the damaged PCB must be replaced often an identical PCB firmware is identical to the original hard drive. Typically PCB damage is from water, fire, and there are other reasons why the PCB fails. And often failed PCB affect other aspects such as firmware or heads.

Types of hard disk failure

Generally speaking, if a disk fails it is due to due to the following reasons back

media As head fault error (as described above), the head of the hard drive is physically touched and damaged the magnetic coating on the platters.

mechanical problem Generally speaking, any electronic failure a hard drive falls into this category. Fire, water, electrical damage to the hard drive would require & # 39; Parts & # 39; exchange.

PCB error As mentioned above, PCB error is a technical error and generally can & # 39; They swapped out & # 39; The same PCB for the specific type of hard drive. Along with the proper firmware, the hard drive, the replacement PCB can be a difficult type of hard drive repair if the hard drive is an older model.

This type of hard drive failure, logical drive failure is usually the least harmful information. This kind of error usually means that the operating system of your computer (or utility) you can see the driver, indicated that free space, but because the computer & # 39; and MFT is corrupted or damaged, you can not read the data. Hard drive failure is not the type that the destructive and the chances of successful data recovery are high overall.

Types of non-mechanical hard drive failure

Other causes of data loss and why data backup is needed to the following:

natural disasters, extreme weather conditions that out of us to have a bad day even worse. Regardless of the computer and submerged in water due to floods, fires burning in or adjacent to a lightning strike, there is still a chance to recover data from the hard drive.

The human factor is accidentally deleting files, formatting bad hard drive and try to upgrade the operating system only to fail frequently asked questions that come up. Also, due to careful than most people have their own laptop, a small drop on the couch, on the floor or down the stairs, the kind of violent jarring to the disk drive, which can cause serious damage to the hard drive platters.

The virus e-mail is typically the way most viruses spread from computer to computer. In addition, visiting questionable websites that have scripts, malware and spyware waiting for the system itself and put your data at risk. We recommend that you run the latest anti-virus software to protect your data from this kind of data loss and reduce the need to require data recovery service.

So how do you protect yourself from data loss? Back up! However, if you still need the data recovery services, make sure that a company that specializes in hard drive data recovery.

Source by Jason Perry


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