The same fate befell the company, whose offices were located in the area affected by Hurricane Katrina, which destroyed not only all the movable and immovable property, but also necessary for the revival and continuation of business information. Of course, terrorist attacks, as well as natural disasters, as well as technological accidents occur, not every day, and cause data loss in only 1-2% of cases. But rejoice circumstance is not worth it, because in addition to this there are many ways to be in this situation. 3-5% of cases of information loss is due to hacker attacks and the impact of malware. Approximately 10% of cases, present unpleasant surprises software when the operating system does not work properly with files, or one of the programs performs an illegal operation. In 10-15% of cases, the cause are the actions of users who may accidentally delete the files in error or format the drive.

But the most common cause of data loss is the failure of the computer. Every year computers are becoming more powerful and most of us are quite satisfied with it. We, as children rejoice when hearing about dual-core processors, fastest graphics chip is unreal, almost non-dimensional hard disks and other "hardware" innovations that open before us such opportunities, which are two or three years ago and the dream did not make sense. But few people think about the fact that in productivity growth have to pay a price high enough, as an unavoidable complication in such cases, the system will inevitably lead to a decrease in its reliability.