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Let your hard drive cool.

No matter what we do with our computer, storage is an important part of our system. Nowadays, we have been holding more and more information on our PC. Most computer users no longer keep their documents, letters, music, photos, pictures, etc. in hard copies, but store them on different data storage devices, preferentially the most popular one - the hard drive, counting on it's reliability.

There are many reasons for the hard drive failures. Of course, when you lose your data, you think less about the causes of its loss, but more about the data, itself. However, if you were to learn about the cost of the hard drive data recovery, you would rather prevent it, especially, from the most common reason of hard drive damage - overheating.

In old drives, the rotating speed was low, so the overheating problem did not exist. However, most recent hard disks, with a speed of 7200-10000 rpm, heat up during their work, and the temperature inside rises up to 70 oC and above. Of course, hard drives are now manufactured with internal temperature sensors, computers have fans, coolers, and other gadgets to prevent overheating, and software utilities indicate the temperature of your hard drive. Contemporary hard drive models are able to operate at 50-55 oC, but we should point out that the hard drives are more sensitive to high temperatures than any other computer parts. The fact that the hard drives carry your precious data is indeed important, as well as its ultimate loss would be a disaster to you. There are data loss situations when even the most advanced data recovery companies can't guarantee that you will receive you data back.


Why is overheating critical for a hard drive? The best way to understand how a hard disk works is to take a look inside the drive to see the internal work of each part in relation to overheating.

The Platters (magnetic physical media).
The platters (disks) carry the data. They are made from light aluminum or optical glass and ceramic, and are coated with a magnetic layer. When the drive heats up, the platters expand, changing their size and geometry. This destroys the magnetic layer on the surface where the data is stored, and creates defects and micro cracks. Physical damage of the surface leads to the appearance of "bad" or unreadable sectors.


The Read/Write Heads.
The read/write heads of the hard disk are the interface between the platters on which the data is stored and the electronic components that make up the rest of the hard disk. The heads read from and write data on the platters. The read/write heads do not make contact with the media. This distinguishes hard disk drives from floppy disks, VCRs and tapes. Drive heads float over the surface of the disk without ever physically touching the platters. When the air inside heats up, the distance from the platters to the heads gets smaller, which increases the possibility of a head crash.


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