Considering the conversation about data recovery on hard drives, let us move on to the issues of hardware. Then there are those that are caused by physical failure of hard disk drive component. The engineers at Data Recovery Chicago tell us in simply and clearly words, when asked what is Winchester computer and why it breaks down, they unanimously agreed on the causes and on what can be done.
- Hard drive device
Computer hard disk consists of the hermetical unit and controller. The most delicate details include: magnetic disks, block heads, and electric. All of this is in an airtight metal enclosure for maximum protection against external influences.
- Hard disk plates
Data is stored on magnetic disks or, as they are called, the plates. The plates are made of alloy and covered with a thin film of special composition. Magnetization direction. Depending on the direction, the cell is coded zero or one.
Possible problems: the aging of the magnetic layer, physical damage to the surface.
Hard drive consists of a number of such plates, planted on top of each other on the spindle. The more plates, the more volume of Winchester. To further increase the volume of each plate has two independent working surfaces like vinyl record has two sides.
Possible faults: wedge bearings, warp axis.
- Magnetic heads
The data you need to somehow save and read: This is the magnetic head. More specifically two heads on each disk (with the other hand). All heads are combined into a unit that is moved to the desired area of the disk which is similar to phono input lever.
When entering into a CDs on their surface formed airbag a few microns thick. It heads are not touching the surface of the disk and don’t scratch it.
To control the unit heads use positioning device: Without going into details, this drive that moves the head with high accuracy in desired area. Off heads are in the parking area outside the disk platters.
Possible malfunctions: sticky block of magnetic heads, its damage.
- Hard drive controller
Controller-chipset, controlling all the listed items. Here comes the decoding of received from the heads of information and then pass the data to the central computer processor. And vice versa-to receive commands from the CPU and “transfer” them on “language”, an intuitive drive block heads.
Possible malfunctions: damage of overhead outage of the controller.
2 Major Causes of Faults & How to Repair Hard Drives
- Damage to the hard disk sectors
Aging magnetic layer and hit the smallest dust particles inside the hermetical unit leads to a magnetic disk sectors are damaged. A so-called BAD-blocks. Such damages are not usually fatal nature, leaving the ability to read the data using special equipment.
Signs: no access to individual files, does not boot the operating system, the drive makes shambling sounds.
Repair: data from a defective disk sector by sector are transferred to your hard drive. Application of hardware-software complex significantly improves the chances of recovering data from damaged areas. In some cases, it is possibly the subsequent repair and maintenance of Winchester. You can consult Chicago Data Recovery 47 for best answers.
- Controller overhead damage
Hard drive electronics unit is a set of elements, one of which is PZU-permanent storage device. It contains a program that controls all elements of your hard disk. When the destruction or damage of this field, the program will not run properly or will not run at all.
Signs: hard disk not detected computer produces strange sounds, is determined by the computer, but you do not have access to the data.
Repair of the damaged portion of the disk utility: recover using special hardware and software PC-3000. The success of the event depends on the degree of damage. If you cannot restore the data, then move to the next item. Visit for more info at https://chicago.datarecovery47.com/ .